Manual rolling machine for profiles. Making a profile bender with your own hands - drawings of a homemade machine. Main production cycle

Bending profile pipes- a fairly common procedure, for which a special device is used - a pipe bender. You can make a pipe bender for a profile pipe with your own hands, or you can purchase it at the construction market or in a store.

Serial devices differ in their operating principle; they may have different types drives, however, operating any of these devices requires some experience. The use of devices manufactured in production conditions is limited by the fact that they are not cheap. A good solution for everyone similar situations It will be possible to independently manufacture a device designed for bending profile pipes, for which you can use improvised means.

Required design elements

To make a pipe bender with your own hands, you can use the drawings various designs. Their choice is determined mainly by what materials you have. Most often they opt for front-type pipe benders, the design of which includes:

three rollers (shafts), which must be metal;
drive chain;
axes of rotation;
a mechanism that will set in motion all elements of the device;
metal profiles, from which the frame of the device will be made.

To understand how to bend a profile pipe on a homemade device, it is important to understand the technology used for this process. As a rule, pipe benders use the rolling or rolling principle, which minimizes the risk of fracture and damage to the pipe.

To make a bend on a profile pipe using such a device, you need to insert it between and turn the handle. The use of such a simple bending device allows you to obtain bends on a profile pipe that fully comply with the specified parameters.

To make a simple machine for bending profile pipes, you will need the following structural elements:

ordinary jack;
metal profiles and shelf necessary for making the frame;
springs with high strength;
shafts in the amount of 3 pieces;
drive chain;
a number of other structural elements.

When using such a device, the operation of which can be seen in one of the videos below, the pipe is laid on two side rollers, and a third one is lowered on top of it, creating the required force. To give the pipe the necessary bend, you need to rotate the handle that drives the chain and, accordingly, the equipment shafts.

Pipe bender manufacturing process

To make a receiving device, you need to follow the following procedures.

Prepare a reliable frame, the elements of which are connected by welding and bolted connections.
Using a previously prepared drawing, install the axis of rotation and the shafts themselves, two of which are located above the third. The bending radius of the profile pipe depends on the distance at which the axes of such shafts are located.
To operate this bending mechanism, a chain drive is used. To complete such a transmission, it is equipped with three gears, and the chain itself can be picked up from an old car, motorcycle or other equipment.
To operate such equipment, a handle is needed that is connected to one of the shafts. It is through this handle that the required torque is created.

Instructions for making a pipe bender

Making a pipe bender for a profile pipe yourself is not at all difficult if you adhere to the following technological sequence.

Gears, bearings and rings are placed on the pressure shaft, which are connected to it using a key. First, a drawing of such a shaft, races for bearings and rollers is developed, then these parts are turned, which is best entrusted to a qualified turner. Total for of this device it is necessary to make three shafts, one of which is suspended on springs, and the other two are located on the sides.
Then it is necessary to drill holes in the rings, which are necessary for making grooves and threading.
Now you need to make a shelf, for which you use a channel, in which you also drill holes and cut the threads required when installing the pressure shaft.
After completing the preparatory measures, the entire structure of the equipment must be assembled, for which welding and bolted connections are used. First of all, the frame is installed, which also serves as the legs of the pipe bender.
The next step is to hang the shelf with the pressure shaft attached to it, for which springs are used. After this, you need to install side support shafts on the homemade pipe bender, on one of which a handle is attached.
The final touch is to install the jack on the pipe bender.

Some subtleties of implementation installation work:

the pressure shaft, fixed with keys, is additionally screwed to the shelf;
installation of the pressure shaft is carried out according to the following scheme: the shaft is installed on a shelf to which nuts for the springs are pre-welded; after the installation work is completed, the shelf is turned over and suspended on the springs;
the chains are tensioned using a magnetic corner, which is used as a holder;
when tightening the sprockets, keys are used, which are pre-made from Grover;
the drive handle for the bending machine is made with a rotating tube;
The jack on such a homemade device is installed on a suspended platform, for which bolted connections and welding are used.

Manufacturing of hydraulic pipe bender

On the Internet you can find many photos and videos of how to independently make a device for bending profile pipes with hydraulic drive. The process of manufacturing such a pipe bender, equipped with a hydraulic cylinder, injection device and pipe stops, is a rather labor-intensive undertaking.

In the drawing and in the design of such a pipe bender, the following elements can be distinguished:

jack hydraulic type with a carrying capacity of at least 5 tons;
shoe;
rollers in the amount of 2–3 pieces;
powerful metal channel;
thick metal plates and other parts.

To make the required bend of a profile pipe using a hydraulic device, it is necessary to insert it into the shoe and fix both ends. After this, you need to use a jack, which, with its rising rod, presses on the roller, which acts on the pipe and bends it. Once the required bend angle is obtained, the process can be stopped and the pipe can be removed from the pipe bender by turning the jack handle several times in the opposite direction.

Methods for bending pipes using a homemade machine

The question is how to bend a profile pipe using homemade pipe bender, is unlikely to confuse you if you familiarize yourself with a few more recommendations. Hydraulic machines can be used to successfully bend profile pipes made of different materials, as well as thick-walled products. This operation can be performed using either a cold or hot method, which involves preheating the pipe section.

Thus, a manual hydraulic bending machine can be used to influence the pipe in two ways:

cold;
hot.

Cold bending is the simplest bending method, which is used for pipes made of plastic materials. The subtlety of this process is to fill the pipe before the flexible one with sand, salt, oil or cold water. This allows you to get a better bend without significant deformation of the pipe.

If you are interested in the question of how to properly bend a profile pipe with thick walls or made from materials of increased rigidity, then the answer to this question is to use the hot bending method.

The question of how to bend a profile pipe as accurately as possible and without unnecessary labor costs will be answered by several useful tips from qualified specialists.

Removable rollers of different shapes will allow you to comfortably work not only with profile pipes, but also with round ones.

In manual pipe benders for bending profile pipes, you can not use sprockets, but assemble a structure based on one drive roller. Instead of a pressure screw, such pipe benders often use a jack.
If you are bending according to a template, then to prevent the pipe from sliding off it, you can use metal hooks as stops.
If you need to bend a profile pipe under a large radius, it is best to use a pipe bender with three rollers.
To get a more versatile bending machine, you can make its thrust rollers movable. This way you can change the bend radius of the pipe.

In the video below, the master shares his experience in building a pipe bender from scrap materials.

In order to strictly observe the dimensions of the required pipe bend, it is best to perform this operation using a template made of wood. Even the simplest manual pipe bender using such a template will allow you to bend a profile pipe with precise compliance with the specified parameters. By the way, such templates are mainly made to implement the simplest manual methods flexible.

Bending profile pipes is a fairly common procedure, for which a special device is used - a pipe bender. You can make a pipe bender for a profile pipe with your own hands, or you can purchase it at the construction market or in a store.

One of the simplest types of pipe bender for profiled pipes

Serial devices differ in their operating principles, they may have different types of drives, but operating any of these devices requires some experience. The use of devices manufactured in production conditions is limited by the fact that they are not cheap. A good solution in all such situations would be to independently manufacture a device designed for bending profile pipes, for which you can use improvised means.

Required design elements

The operating diagram of a pipe bender is very simple

To make a pipe bender with your own hands, you can use drawings of various designs. Their choice is determined mainly by what materials you have. Most often they opt for front-type pipe benders, the design of which includes:

three rollers (shafts), which must be metal;
drive chain;
axes of rotation;
a mechanism that will set in motion all elements of the device;
metal profiles from which the frame of the device will be made.

Very often, a machine for bending profile pipes is made with rollers made of wood or polyurethane. When choosing such materials, you should take into account the strength characteristics of the pipes that will be subject to bending. If you neglect this requirement, then the working elements of the homemade device may simply not withstand the load and collapse.

Drawing of a pipe bender: the sectional view shows the mounting structure of the pressure roller

To make a bend on a profile pipe using such a device, it must be inserted between the rollers of the pipe bender and turn the handle. The use of such a simple bending device allows you to obtain bends on a profile pipe that fully comply with the specified parameters.

Pipe bender using a jack

To make a simple machine for bending profile pipes, you will need the following structural elements:

ordinary jack;
metal profiles and shelf necessary for making the frame;
springs with high strength;
shafts in the amount of 3 pieces;
drive chain;
a number of other structural elements.

Option with inverted jack

Pipe bender manufacturing process

To make a device for bending profile pipes, you must perform the following procedures.

Prepare a reliable frame, the elements of which are connected by welding and bolted connections.
Using a previously prepared drawing, install the axis of rotation and the shafts themselves, two of which are located above the third. The bending radius of the profile pipe depends on the distance at which the axes of such shafts are located.
To operate this bending mechanism, a chain drive is used. To complete such a transmission, it is equipped with three gears, and the chain itself can be picked up from an old car, motorcycle or other equipment.
To operate such equipment, a handle is needed that is connected to one of the shafts. It is through this handle that the required torque is created.

Drawings of a pipe bender for corrugated pipes

Instructions for making a pipe bender

Making a pipe bender for a profile pipe yourself is not at all difficult if you adhere to the following technological sequence.

Gears, bearings and rings are placed on the pressure shaft, which are connected to it using a key. First, a drawing of such a shaft, races for bearings and rollers is developed, then these parts are turned, which is best entrusted to a qualified turner. In total, for this device it is necessary to make three shafts, one of which is suspended on springs, and the other two are located on the sides.
Then it is necessary to drill holes in the rings, which are necessary for making grooves and threading.
Now you need to make a shelf, for which you use a channel, in which you also drill holes and cut the threads required when installing the pressure shaft.
After completing the preparatory measures, the entire structure of the equipment must be assembled, for which welding and bolted connections are used. First of all, the frame is installed, which also serves as the legs of the pipe bender.
The next step is to hang the shelf with the pressure shaft attached to it, for which springs are used. After this, you need to install side support shafts on the homemade pipe bender, on one of which a handle is attached.
The final touch is to install the jack on the pipe bender.

Some subtleties of installation work:

the pressure shaft, fixed with keys, is additionally screwed to the shelf;
installation of the pressure shaft is carried out according to the following scheme: the shaft is installed on a shelf to which nuts for the springs are pre-welded; after the installation work is completed, the shelf is turned over and suspended on the springs;
the chains are tensioned using a magnetic corner, which is used as a holder;
when tightening the sprockets, keys are used, which are pre-made from Grover;
the drive handle for the bending machine is made with a rotating tube;
The jack on such a homemade device is installed on a suspended platform, for which bolted connections and welding are used.

Manufacturing of hydraulic pipe bender

On the Internet you can find many photos and videos of how to make your own device for bending profile pipes with a hydraulic drive. The process of manufacturing such a pipe bender, equipped with a hydraulic cylinder, injection device and pipe stops, is a rather labor-intensive undertaking.

In the drawing and in the design of such a pipe bender, the following elements can be distinguished:

hydraulic jack with a lifting capacity of at least 5 tons;
shoe;
rollers in the amount of 2–3 pieces;
powerful metal channel;
thick metal plates and other parts.

Pipe bender for profile pipes in finished and painted form

Movable platform of the pressure shaft Installation of shafts Chain with tensioner Assembled view

To independently make a hydraulic bending device for profile pipes, a photo of which can be easily found on the Internet, you must perform the following procedures.

Based on the drawing or photo, a structure for mounting the shoe and rollers, as well as the equipment frame, is made.
A metal plate is attached to the lower platform on which the jack will be installed. After this, such a device is secured with bolts and a drive handle is installed on it.
The most important thing is to find suitable rollers for the profile pipe, which should tightly grip the working part. If desired, rollers for the profile pipe, which are installed on the channel at the same height, can be made with your own hands. The shoe is installed below the rollers, and their relative position is determined by the required bending radius.
To fix the rollers and shoe, bolts are used, the holes for which are made according to the dimensions indicated in the drawing.

Drawing of another version of a pipe bender

Methods for bending pipes using a homemade machine

The question of how to bend a profile pipe using a homemade pipe bender is unlikely to confuse you if you read a few more recommendations. Hydraulic machines can be used to successfully bend profile pipes made of different materials, as well as thick-walled products. This operation can be performed using either a cold or hot method, which involves preheating the pipe section.

Thus, a manual hydraulic bending machine can be used to influence the pipe in two ways:

Another variation with a jack

Cold bending is the simplest bending method, which is used for pipes made of plastic materials. The subtlety of this process is to fill the pipe before the flexible pipe with sand, salt, oil or cold water. This allows you to get a better bend without significant deformation of the pipe.

The question of how to bend a profile pipe as accurately as possible and without unnecessary labor costs will be answered by several useful tips from qualified specialists.

Removable rollers of different shapes will allow you to comfortably work not only with profile pipes, but also with round ones.

In manual pipe benders for bending profile pipes, you can not use sprockets, but assemble a structure based on one drive roller. Instead of a pressure screw, such pipe benders often use a jack.
If you are bending according to a template, then to prevent the pipe from sliding off it, you can use metal hooks as stops.
If you need to bend a profile pipe under a large radius, it is best to use a pipe bender with three rollers.
To get a more versatile bending machine, you can make its thrust rollers movable. This way you can change the bend radius of the pipe.

In order to strictly observe the dimensions of the required pipe bend, it is best to perform this operation using a template made of wood. Even the simplest manual pipe bender using such a template will allow you to bend a profile pipe with precise compliance with the specified parameters. By the way, such templates are mainly made for the implementation of the simplest manual bending methods.

Do-it-yourself pipe bender for a profile pipe - diagram, drawings, video

We make a pipe bender for a profile pipe with our own hands. Stages of work, diagram, design drawings and tips for working with a homemade device for bending pipes.

Homemade pipe bender for a profile pipe: device and manufacturing nuances

The need for reliable and simple device for bending profile pipes occurs when House master begins to seriously study metal. A frame for a gazebo, a carport, a garden bench, a workbench...

These and many other designs turn out durable and beautiful if profile metal for them, carefully bent on a special profile bender.

There is always an economical alternative to buying a ready-made machine, since you can make a pipe bender for a profile pipe with your own hands in a home workshop. Before the first workpiece is clamped in a vise, we suggest that you become familiar with the operating principle and existing varieties homemade pipe benders.

How does a pipe bender work?

The operating principle of this device is simple: a profile pipe is placed between three support shafts. The central shaft creates pressure that bends the metal at the desired angle.

To bend the pipe in one local area, a pointing machine is used.

If you need to get an arched profile, then use a rolling bending machine that combines metal bending with broaching.

Types of pipe bending machines

Depending on the drive that transmits force to the profile metal, there are three types of pipe benders:

mechanical (pressure is created manually using a central screw or lever);
hydraulic (a hydraulic jack is used);
electric (bending force is created by an electric motor);
electrohydraulic (the hydraulic cylinder is driven by an electric motor).

It should be noted that a rolling pipe bender with manual profile pulling is designed for small cross-section pipes (maximum 40x40 mm). It is impossible to stretch a large profile manually. To bend it, powerful machines with an electric broaching mechanism are used.

How to make a bending machine with your own hands?

The basic principle that should be followed when developing a drawing for a homemade pipe bender is maximum simplicity of design and reliability.

A machine for point bending can be assembled from two pieces of channel, four corners and two trimmings of fingers from tractor tracks.

Pipe bending in it is performed by a standard hydraulic jack with a force of at least 5 tons. A steel “shoe” is installed on its working rod. You can order it from a turner or make it yourself from an old pulley, the width of the “stream” of which is equal to the width of the profile pipe. By cutting off a half from the pulley and drilling a seat for the jack rod in it, a hydraulic drive mechanism is obtained.

The frame of the homemade device consists of four corners (60-80 mm shelf) welded to a steel plate. Two channels are welded in parallel to the upper ends of the corners. Holes are drilled symmetrically in their walls to adjust the bend angle of the workpiece.

IN working position manual machine for bending a profile pipe is given very simply:

Two steel fingers are inserted into the holes on the channel and stop rollers are placed on them.
The jack with the shoe is raised so that a profile pipe passes between it and the stops.
Having installed the pipe, use the jack handle to create a bending force.

It is also quite possible to build a rolling manual pipe bender for a profile pipe on your own. To make it you will need 2 linear meters channel (wall height 15-20 cm), from which the base and racks are cut.

To make the rollers, take six short pieces of steel pipe. It will act as a cage for bearings. Therefore, its inner diameter must be equal to the outer diameter of the bearing. Having ordered three shafts from the turner for attaching the bending rollers, they begin welding the frame.

For the machine under consideration, the role of a guide setting the angle of bending of the profile is played by the rightmost support. It is mounted on a channel, pivotally connected to the main frame using conventional door hinges. The jack's working rod rests against the turntable and lifts it.

By rotating the handle mounted on the intermediate stop shaft, the profile is pulled through the machine.

You can adjust the bend radius of the profile not only by tilting the rotary channel, but also by using the outermost rollers. To do this, they are not tightly welded to the frame, but made movable (holes are drilled in the channel and support plates).

Instead of a hydraulic jack, you can use a screw automobile jack to lift the end drum.

Do-it-yourself pipe bender for a profile pipe - device diagrams, photos and videos

Learn how to make a pipe bender for a profile pipe with your own hands. Design options, description of manufacturing features, photo and video materials.

How to make a profile bending machine with your own hands

When arranging a site or preparing for the dacha season, the need arises for arches made of profile pipes. They are needed when constructing a greenhouse, assembling a gazebo or canopy. It is expensive to buy already bent arches - the price is twice as high as for the same flat rolled products. The solution is to do it yourself, and to make the process easier (it’s very difficult to do by hand) you need to make a pipe bender for the profile pipe. You will need channels or corners, rolling rollers and some other details. Among the tools - a grinder with a metal disc, welding machine, ruler.

Profile bender design

The machine for bending profile pipes is structurally different from the usual one. This is due, firstly, to the greater resistance of the profile to bending loads, and secondly, to the fact that the bending radius usually required is large. Therefore, the design contains three rollers. Two of them are installed permanently, one remains movable. Using a movable roller, the radius of curvature changes. In general, there are two types of pipe benders for profile pipes: with a middle movable roller and with an outer one (right or left - as desired).

You can make a pipe bender for a profile pipe in different sizes with your own hands

Pipe bender with middle movable roller

The two outermost rollers are fixedly mounted on the body. They are raised above the plane of the base. For the middle roller, a special U-shaped frame is welded. A long, large-diameter clamping screw is installed in the middle of its jumper. A third bead is attached to the lower end of this screw (can be welded). By rotating this screw, the roller lowers and rises, changing the bending radius of the profile pipe.

Design of a pipe bender for a profile pipe with a movable middle roller

A cloud is welded to one of the stationary rollers, with the help of which the pipe is rolled through the machine. To make it possible to apply less effort for rolling, two stationary rollers are connected using a chain. To effectively transmit torque, sprockets are welded to the rollers (possibly from a bicycle), and a chain is selected for them. Such simplest mechanism makes bending a profile pipe much easier.

With extreme movable roller

In this design, the right or left roller is made movable. It moves along with part of the base. This part is connected to the rest of the frame using powerful metal hinges.

Drawing of a bending machine for profile pipes with a lifting platform

You can change the height using a jack, as shown in the drawing. The height of the platform in this case is selected depending on the height of the jack. The bending radius is changed by lifting the movable part of the table.

Pipe bender for profile pipe with lifting platform

Unlike the previous design, this pipe bender for a profile pipe is driven from the central roller - a handle is welded to it. To reduce the required force, you can also weld the sprocket to two fixed rollers and transmit torque using a chain.

What materials and design details are needed?

The base of the pipe bender is made from a channel or two welded angles. The thickness of the shelves is at least 3 mm; select the width of the shelves and the back of the channel to match the existing parts. One rule - the base must be massive and reliable.

Several holes can be made along the edges of the platform. Through them you can fix the machine to some heavy base using large diameter self-tapping screws. Fixation is necessary, since when bending pipes with a thick wall, significant forces have to be applied and it is more convenient to work if the machine is firmly fixed.

This is what the frame looks like with welded racks for attaching the movable roller

A few words about rollers. They must be made of good, high-quality, preferably hardened steel. It is on the rollers and on the axles that hold them that most of the load falls.

It should also be said about the shape of the rollers. They should not be smooth - there should be rollers along the edges that will prevent the pipe from “walking” during rolling. Only under such conditions will the arc from the profile pipe be smooth and not twisted. Ideally, each pipe size needs its own rollers. But then the design becomes more complicated - they need to be made removable, thought out reliable way fastenings The second option is to make videos of complex shapes, such as in the photo. Carve a few steps under different sizes pipes

Rollers for bending profile pipes of different widths

In the same photo you can see that the upper part of the bed is not smooth, but toothed. With the help of such teeth, the rollers can be rearranged to different distances and thus also adjust the bending radius.

In general, homemade bending machines for profile pipes are assembled from what is at hand or what they can find/buy inexpensively. Those who have the opportunity grind out the rollers and insert bearings. Those who do not have such an opportunity use what they have - even bushings from bicycle wheels. In general, you need to understand the design and

Tricks to make pipe bending easier

To make the rollers move better, bearings are used. But, in principle, for a homemade pipe bender, which will be used only occasionally, you can simply make holders from a corner or channel. Make a hole in them that is slightly larger in size than the axis on which the roller will be mounted. Pass the axle with the roller on through the holes of the holders and somehow fix them (at least weld on a couple of points that will be stoppers). During operation, for better performance, lubricate the rubbing areas with a thick lubricant such as Litol. This is not suitable for industrial and semi-industrial production, but for making arcs for a greenhouse or gazebo with your own hands it is just right.

Example of turned beads

There is one more trick that helps reduce the required force when bending a profile pipe. You can use the principle of increasing gears as in a bicycle. By the way, you can use bicycle sprockets. In this case, the handle that drives the rollers is welded to a small star. It is installed somewhere on the body. Larger sprockets are welded onto the shaft axis (but teeth with the same pitch). All this is connected by a suitable chain.

With such a torque transmission device, an electric drive is not needed - it will be easy to work

And one more improvement - if you constantly use a pipe bender for a profile pipe, it makes sense to mechanize it. In this case, they install a motor that operates at low speeds.

The procedure for bending a profile pipe on homemade machines

It is unlikely that you will be able to obtain the required bending radius in one go - too much force is required for this. It is impossible to create it manually. Receive the required bend in several passes:

First, the rollers are aligned so as to obtain a slight bend, the pipe is rolled in one direction, then removed from the rolls, unfolded and inserted on the other side. It is necessary to unfold in order to obtain an evenly curved pipe.
With the same position of the rollers, it is pulled several times until the curvature is no longer added.
If the required bending radius is not achieved, change the position of the roller and repeat the steps again.

Rolling pipe bender with electric drive

The change in bending radius is achieved gradually, otherwise you will not be able to make an arc from a profile pipe using a homemade pipe bender. What to do if you need to repeat the same bend? Make a graduation - note to what height the roller moved, how many times it was rolled in each position. When repeated, the differences, if any, will be insignificant.

The difficulty of bending lies in the fact that there is no scale and it is difficult to obtain the intended bending radius without experience. Sooner or later you will get it, but you can spoil a lot of material in the process.

How to bend a profile pipe without a machine

There are two ways to make an arc from a profile pipe without a profile bender - using welding and a template. Let's start with welding.

Get an arc by welding

The profile pipe is cut with a grinder on one side. They are made every 15-30 cm, depending on the required radius, cross-section and wall thickness. The cuts should not touch one side - the one that will be on the outside.

Result of bending by welding

The spare part prepared in this way is bent, giving the desired bend. For reliability, the edges of the arc can be fixed by welding a rod to them. Then welding is carried out along all the cuts, welding them. And the last stage is grinding the weld spots and treating them with anti-corrosion compounds.

Using a template

Thin-walled profiled pipes can be bent by hand using templates. If you need a special shape, it can be cut out of a piece of thick plywood or chipboard and secured to the table using clamps. On the workbench where we will bend the pipes, make about 8-10 holes. The template is placed near these holes.

The process of obtaining an arc from a profile pipe using a template

The holes are repeated at one end of the pipe; with their help, the pipe is attached to the workbench. Now the free end of the pipe begins to be pulled smoothly, forming a bend that follows the shape. You need to pull smoothly, without jerking.

The template can also be made on the ground. Pipes-pegs are driven into the ground (at least half a meter deep). They form the required arc. For emphasis, two additional stakes are driven in, which are located to the side of the arc. The distance you need to step aside is slightly greater than the width of the pipe.

Pattern on the ground

Having inserted the pipe, it is pulled towards the arc. Great efforts are required, the work is hard. This can only be achieved with a thin-walled, seamless pipe. The suture has too much resistance in the seam area. It is very difficult to overcome it manually.

Do-it-yourself pipe bender for a profile pipe

Home craftsmen often use a profile pipe. You can expand your creative capabilities with the help of a pipe bender, which you can make yourself

How to make a pipe bender for a profile pipe with your own hands

If you like to create unique building structures, engineering structures, a good home workshop equipment will come in handy. When selecting specific types of equipment, you need to pay attention to the mechanisms discussed in this article. To make a pipe bender for a profile pipe with your own hands, study the detailed instructions, videos, photos, drawings. Using these materials, it is not difficult to implement the corresponding project.

Electric pipe bender

Do-it-yourself pipe bender for a profile pipe: basic data

Before you study working documentation and algorithms for installation operations, the intended purpose of the product must be accurately determined. A pipe bender for a profile pipe with your own hands must be designed for certain forces, workpiece sizes, and materials. Easier to install significant criteria after familiarization with the parameters of devices tested in practice.

What are these devices for?

Elements building structures complex shapes are created using different techniques:

Fastening with bolts and screws is not always able to provide the necessary reliability. Such connections are destroyed by vibration, resulting in additional loads.
Welding has excessive thermal effect, which violates the original structure of the materials. To make the connection reliable and durable, a well-qualified contractor is required. Special equipment consumes a lot of electricity. Some technological processes use expensive Consumables, create special conditions.
Adhesive joints have limited resistance to loads and impacts of various natures.

The disadvantages listed above are eliminated completely or partially if the workpiece is bent in the required way. To avoid damage, precise dosing of loads and speeds is required. IN selected places It is necessary to maintain the integrity of the walls with external supports.

To reproduce such techniques without errors, special devices and machines are used.

What engineering solutions will be used in practice?

If the strength of the materials is relatively low, it will be enough to use a suitable stencil.

The workpiece is wound onto a roller, forming the required angle

To create the necessary force, a lever mechanism is installed here. A metal pin is used to fix the free section of the pipe. It is installed in suitable grooves of the “comb” before performing work operations.

Crossbow type machine

Using this factory sample as an example, it is easier to study the design features:

Handle (1) regulates the automatic stroke of the piston in the opposite direction. This solution reduces the burden on the user.
Installed inside the case hydraulic system. When the handle is moved up and down, a force of up to 150 kN is transmitted to the working piston (8). This is quite enough for quickly bending workpieces made of durable metals.
Support rollers (3, 4) are installed in the required frame holes open type(5, 9). They do not damage the surface of the pipe, but provide reliable fixation.
This removable segment (6) is designed to be bent at an angle of 90°. But with the appropriate configuration, it can be installed on a similar product of a different shape.
The robust housing (10) is mounted on three supports (7). Rubber pads prevent the machine from moving when performing work operations.
In addition to cleaning from dirt, you should occasionally check the condition of the oil filter (11). No other regulatory procedures are needed.

For rolling, a mechanism with three rollers is used, which are movably fixed

Run-in

This technique uses a workpiece the desired shape. The pipe is pressed against it using a rotating roller and lever.

At making the right choice technology, a straight pipe can be bent as follows
Using appropriate equipment, such decorative products are created

Important! Before bending a workpiece using a certain radius, you should study specialized reference books. They provide data on the permissible deformations of pipes made of different materials, with different wall thicknesses. If these instructions are violated, visible or hidden defects will form in the finished products.

Relatively small mechanical loads on working tools are created by levers and manual force. To work with durable metals, the equipment is equipped with hydraulics and electric drives.

Stationary machine useful for quickly completing large-scale tasks
A hand-held device means mobility and the ability to perform work in confined spaces

Making a pipe bender with your own hands for a profile pipe: drawings and other preparatory operations

A simple device for bending aluminum and plastic blanks is shown in this figure.

Such a device is not difficult to assemble quickly using available tools

To make such a structure you need a strong board. After marking, a round profile is cut out of it using an electric jigsaw. The remaining part is used to make the supporting element. The created parts are rigidly attached to the supporting surface. To ensure the strength of the connections, in addition to screws, clamps are used. Next, the pipe is bent by hand until the desired shape is formed.

Before creating this simple pipe bender for a profile pipe with your own hands, it is recommended to make a basic drawing with dimensions. A template made of thick paper or cardboard on which the markings will be applied will come in handy. It is clear that for the manufacture of more complex structures it is necessary to prepare complete design documentation.

Assembly drawing
Pipe bender with screw drive of the working shaft
The design is not difficult for self-production Professional drawing indicating steel grade and other parameters
This simple device can be made quickly with your own hands.

It is not necessary to strictly adhere to engineering standards in order to make a pipe bender for a profile pipe with your own hands; a schematic image is quite enough. You just need to indicate all the dimensions, decide on the materials, technological process And components. The project will help solve several practical problems:

During the preparation process, it will become clear whether it is necessary to use welding and other special equipment.
A complete list of necessary components will be needed for targeted visits to certain stores.
We must not forget that the machine must be protected from adverse external influences using wood impregnation and metal painting.
Some parts will be too difficult to make yourself. Appropriate orders should be placed in specialized workshops.

Important! When bending strong metal pipes it takes a lot of effort. In order not to take unnecessary risks, you can use drawings of a proven design, or copies of an industrial design.

How to make a pipe bender for a profile pipe with your own hands

To make a pipe bender for a profile pipe with your own hands, study the detailed instructions, videos, photos, drawings. Using these materials, it is not difficult to implement the corresponding project.

Do-it-yourself pipe benders for profile pipes are made by advanced craftsmen very often, despite the fact that construction market offers factory-made bending machines in large quantities.

But why spend money on expensive equipment if only a small amount of work needs to be done? For this reason, home craftsmen try to make this simple home tool with his own hand.

This work at home is not something super complicated. Almost any home craftsman who has necessary tool and a little experience.

The pipe is one of the most popular building materials, which are successfully used in home life and industry. But, for the construction of various structures, pipes have to be bent, and here you cannot do without a pipe bender. It is this tool that makes it possible to easily change the configuration of a product made of any material.

Profile bender design

To independently build a pipe profile bending machine, use different drawings. The priority of one option or another is usually dictated by the availability of available materials.

The front version of the bending machine consists of the following elements:

metal shafts or rollers (in a set of three);
drive chain mechanism;
metal profiles used to make a frame base.

A machine for bending profile pipes is often equipped with wooden rollers. Polyurethane is also often used for this. When choosing these parts for profile bending, it is necessary to take into account the strength indicator of the tubular product. If this requirement is not taken into account, then a self-made bending machine will simply not withstand the load and will become unusable.

Classification of devices by drive type

Industrial enterprises offer devices for bending square pipes of various designs. To process assortments with a small diameter, devices that operate on a manual drive are used.

And for tubular products from large sizes, equipment for processing profile pipes, which has a hydraulic drive, is used. These devices are intended for large-scale events with square pipes. The most convenient of these mechanisms are bending tools that are connected to the electrical network.

Types of devices by bending method

Pipe benders are also divided according to the type of bend, let’s look at them.

Crossbow mechanisms.
Manual spring devices.
Segment options.
Mandrel devices.

What materials and design details are needed?

To build a simple profile bending machine with your own hands, you will need:

simple jack;
shelf and profile made of metal;
high-strength springs and 3 shafts;
drive chain.

In order for the simplest type of structure to serve reliably, it is important to construct a strong frame. It is fastened by welding or bolts. Then, in accordance with the developed drawing, the shafts and torsion axes are installed. The bending radius of the corrugated pipe will depend on the distance at which the axes of the simplest bending device are located.

The simplest machine for bending square pipe materials is driven by a chain drive. To complete the transmission of this profile bender, three gears are used. It is recommended to take the chain directly to the machine, made with your own hands, from an unnecessary car or motorcycle.

The mechanism for bending the corrugated pipe is driven by a handle. It is connected to one of the shafts to bend the profile. It also creates the necessary torque of the mechanism on the profile bender.

The process of making a profile bender at home

The simplest versions of homemade tools for bending profiles at an angle are designed for processing a range of small diameters. But this technology is suitable for actions not only with aluminum profile. Such tools for bending profiles at an angle can also be used to process steel products.

A feature of each pipe bending device is the distribution of load on the profile. It is distributed gradually and evenly over the bend area. It is the same at all points of the profile. Due to this, the device does not crush the walls of the pipe assortment during bending.

The manufacturing process in each case begins with the development of a drawing. Depending on what devices are used for bending pipes, it is manufactured. The plan must indicate all structural elements: frames, pipe supports, shafts, etc.

You also need to take into account the fact that the profile does not need support from the side walls during processing. Consequently, in machines for bending it it is possible to use shafts wider than the profile itself. .

Drawings of a machine for bending profile pipes are very different. Masters willingly share them. After looking through many options, you can choose the most suitable type for your goal.

IMPORTANT! Particular attention should be paid to the fact that the drawing must contain accurate measurements of each part. Otherwise, the device will not work.

After the drawing has been selected and studied in all details, you can begin the most important stage - manufacturing.

Where to start the process and where to find parts

Naturally, it is easier to bend a regular round pipe gauge with your own hands, but appearance profile looks much more interesting when constructing gazebos, greenhouses, and fences.

Bend it with your own hands at home, so that when deformed, the walls do not flatten, and cracks or slightly heavier waves do not form on the bend line.

To save money, you can not buy a pipe bender in a store, but make a homemade one with your own hands at home, spending practically nothing from your savings.

Design of a device for bending of medium complexity

The functionality of this profile bender is based on the operating principle of a rolling machine. To start creating, you will need to prepare in advance: a welding machine, a clamp (or its equivalent), rollers and a channel. Before starting construction, it is advisable to familiarize yourself with the operation process of the machine.

A homemade pipe bender for a profile pipe operates on the principle of rolling a sample through a zone under pressure.

The movement is carried out using a pair of horizontally installed rollers on the channel, which is the base, and the third roller, which is installed in the lower part of the clamp, plays the role of a deforming unit.

The assembly of such a machine is carried out according to the following scheme. The first step is to prepare the base, which can be a wide channel or by connecting a pair of narrow ones together.

After the base is ready, it is installed on top of it metal structure U-shaped. A hole is made in its upper beam, matching the diameter of the clamp coupling.

At an equal distance from the mechanism, rotating rollers are installed on the sides, on which the chain drive sprockets are attached. They are powered by hand.

A pin is screwed into the coupling, on the edge of which a third roller is attached, and a handle is welded to its upper part. This bending machine functions as follows:

the sample to be bent is placed on the feed rollers;
By rotating the handle of the clamp, the pipe assortment is pressed by the third roller and moves to the deformation zone, rotating the chain drive handle connected to the feed rollers.

The first pressure will be relatively small, but when pulling the product through this zone several times you can achieve any degree of bend.

It is worth considering that bending the product at a right angle using this method will not work.

Homemade profile bending of the simplest design at home

The machine mechanism guarantees uniform pressure distribution, which eliminates the possibility of flattening or other deformation.

The need for a device that can bend profile pipes arises in many cases. A similar tool is necessary when arranging a gazebo, canopy, or creating greenhouses. Today they are sold on the market bent pipes, however, the high cost makes their purchase unprofitable. It is much cheaper to build and create bent profile pipes yourself.

Types and design features of profile benders

Machines capable of bending profile pipes differ in design from conventional tools. Profile materials have increased strength. Accordingly, in order to bend them, more effort must be made.

In addition, usually the bend of a profile pipe has a large radius. In this regard, the design of the profile bender includes three rollers. Of these, depending on the preferences of the master, the movable one can be:

left roller;
middle roller;
right roller.

Roller for pipe bender

If the middle roller is movable, the outer elements are fixed to the body. They rise slightly above the plane of the base. If one of the outer rollers is movable, then it moves along with the base. Others remain motionless at this time.

The operating principle of such a tool is quite simple and is based on cold rolling. A profile pipe is placed between three shafts. The pressure that bends the metal is created by the central, middle roller. If the pipe needs to be bent only in one specific area, it is necessary to use a special pointing machine. A rolling machine allows you to obtain an arched profile.

Depending on the force applied by the machine, the following types of profile benders are distinguished:

mechanical. The bend is created by manual pressure;
hydraulic. Additionally, a hydraulic jack is used, with which pressure is created;
electric. The machine is equipped with an electric motor that creates bending force;
electrohydraulic. The electric motor drives the hydraulic cylinder.

If the machine is designed for small cross-section pipes, a hand-broaching tool is suitable. Otherwise, it will be impossible to stretch the profile without special devices (for example, an electric motor).

What materials and tools are needed to make a pipe bender?

On the modern market there are big variety tools designed for profile bending. They differ both in capabilities and functionality, and in price. However, any master can make such a machine on his own, paying only for the individual components. Some of them may already be in stock, others will have to be purchased.

So, to create a machine, you need to acquire:

corners;
chain;
chain tensioner;
blanks for the manufacture of rollers and shafts;
channels;
bearings;
bearing housings;
drive sprockets;
hydraulic jack;
drive shaft handle;
springs (if a jack will be used);
bolts and nuts.

There are many options for manufacturing machines for bending profile pipes. Some of the parts listed above may not be needed. It all depends on the chosen method of creating the tool. In addition to materials, you will also need tools. In order to create a machine, the master will need:

drill (electric);
welding machine;
hammer;
grinder (angular);
drills (for metal);
open-end and socket wrenches.

The most difficult task is the manufacture of the pressure roller and drive shafts. To create them you will need. Not every master has such equipment. However, you can find a turner who will do all the necessary work for a reasonable fee.

Build process

Before starting assembly, it is strongly recommended to create a drawing of the future device. This will make the task much easier. Although today there are a large number of ready-made drawings, it would be better if the master creates it himself, taking into account his own needs.

The entire process of creating a pipe bender for a profile pipe with your own hands consists of the following steps:

Creating a roller and shafts (if you lack the proper qualifications, it is better to entrust this task to a professional turner).
Installing bearings into cages.
Determining the location of keyways on shafts.
Drilling holes in the limiting nozzles, cutting threads intended for clamping bolts.
Creating a platform on which the pressure roller will be installed. B (if there is none, a thick one will do metal plate) four holes (paired) are drilled into which the races with bearings will be attached.
Screwing the pressure shaft.
Welding the eyelet to the platform (M8 nuts are used).
Manufacturing of the bed and support legs using a welding machine.
Suspending the platform on which the roller is installed to the frame using springs (use the upper cross member of the frame).
Drilling holes in the support frame. With their help, a variable distance between different shafts will be provided. In this case, it is necessary to carefully monitor the distance between the holes, since in case of an error the pipe will not only bend, but also be compressed.
Installation of support shafts. Installation of driven and driving sprockets, drive chain.
Installing the tensioner, eliminating chain slack.
Creating a drive handle. As a starting material, you can use a steel rod with a diameter of twenty millimeters.
Installing and fixing the jack on the upper platform. Nuts and bolts can be used for fixation.

After assembly, it is recommended to conduct a test during which assembly errors (if any) will be detected. To do this, you need to place a piece of profile pipe on the lower shafts and press it against them with a jack. Next, you need to activate the device by rotating the handle.

Another device option

You can create a machine for bending a profile pipe with your own hands in another way. This will require fewer materials. It will be possible to do without an expensive jack. The process of creating more simple machine consists of the following steps:

Creating a frame similar to a longitudinal table. Welding can be used to connect elements. In this case, it is necessary to take into account the voltage that will be exerted on individual elements devices. It is important that the frame is stable. This can be achieved by attaching it to the floor.
Mounting two rotating shafts just above the table. The third shaft is located even higher, between the first two. The distance between the outer shafts and the central element can be changed. This will affect the bend radius. However, it is important that both outer elements are at the same distance from the central shaft. In the future, this parameter can be changed depending on the bending radius that needs to be obtained in a particular case.
Chain drive mounting.

This machine has a simpler design. However, it is somewhat more difficult to work with than the previous device. In any case, after making the tool, it is recommended to clean it from rust and paint it. This will protect the pipe bending machine from damage.

The first machine is more thorough. Pipes bent on such a unit will have a neater appearance. In addition, less force will have to be used to process the profile. The second machine is cheaper and easier to manufacture. However, the quality of the bend may be worse. The craftsman himself must decide which tool to make, focusing on his needs.

Thus, bending machines for profile pipes can be manufactured independently. The final cost of such tools will be lower than industrial products on the market. To create a machine you will need certain materials and tools.

There are a large number of drawings of such devices, but it would be better if the master creates the drawing himself, taking into account all the features. You can make a tool based on the instructions presented above.

During construction work they are often used hardware. Most often they are mounted on straight sections, so there are no problems. However, there are cases when the structure has a curved shape, then it becomes necessary to bend the pipe (for example, a profile for a greenhouse) at a certain angle. In production this process occurs with the help of professional pipe benders. However, in private construction, when a small amount of work needs to be carried out, there is no need to buy an expensive device. In this case, you can make a simple profile bender with your own hands or purchase a manual pipe bender with a minimum number of functions. More about all this below.

Read in the article:

Why do you need a pipe bender?

Thanks to improved production, modern devices can bend a pipe of any size and from any material (for example, steel, PVC, aluminum) up to 180°. This equipment is indispensable when carrying out complex construction work and, especially, when laying utility networks(heating, water supply, gas supply and so on). In addition, they are often used for landscaping garden plots.

Using a profile bender you can bend the following elements:

Beams.
Solid blanks of rectangular or square shape.
Channels.
I-beams.
Pipes.

Design and drawing of a pipe bender for a profile pipe

Device for bending profile pipes - manual, electric or mechanical equipment with relatively small size and weight. The work uses cold rolling technology. And for the curvature of optimal parameters and processing of parts of different sizes and types, special attachments are used.

Roll forming machines are roller mechanisms and come in four types:

With upper movable roller.

The most common and simplest type. Moreover, if the profile bender is manual, the roller moves under the control of the gearbox; if it is hydraulic, it moves under the control of the hydraulic system. The error of this type of device is minimal.

With left movable roller.

In addition to the usual bending of a part, this device is capable of curling spirals. To control bending, such machines are equipped with CNC controls with the ability to pre-set process parameters. Therefore finished product bending parameters correspond as much as possible to the initial parameters.

Machines with movable lower wheels.

Used for bending large workpieces. Such pipe benders are only hydraulic and are characterized by fully automated control.

Pipe benders, all the rollers of which move during operation.

The most technologically complex device that contains the advantages of all of the above types. He is capable of conducting full cycle bending work on the part.

The drawings of both a purchased and a homemade pipe bender for a profile pipe depend on the type of device. But there are elements present in every device: frame, pipe stops (two or more), shafts.

The frame (or bed) is designed to secure other parts to it. It can be one of two types:

Closed(It has complex design, therefore it is manufactured in factories; requires certain skills to operate, but is safer than open).
Open(typical for a pipe bender made by hand according to drawings; the dimensions of such a frame are relatively small, so it is not difficult to use).

How does a pipe bender for a profile pipe work?

Pipe bending machines bend parts, and profile benders (or rollers for profile pipes) deform the workpieces by rolling them. All devices of this type (both professional and self-designed) have almost the same operating principle.

Before starting to work with the part, you need to remove the grease from the device with a dry cloth and run it idle for about half an hour.

Important! This is necessary to detect errors and breakdowns before starting work. If faults are detected with a part in the device, it will be much more difficult to eliminate them.

Be sure to ground and test all connections (electrical and mechanical) before starting work. Now let's set up the shafts for the profile pipe bender (buy or order in a workshop which is not difficult and will not take a lot of money when self-production

devices):
The nuts of the rollers (support and pressure) are unscrewed.
Rollers for the profile bender are installed and fixed (the purchase of which, when making the device yourself, can be done at any specialized store).
The pressure roller rises.

The workpiece is cleaned and fixed (using special bolts).

Next, the part is deformed by rolling it between the shafts, so for adjustment it is enough to move the upper shaft up or down. Moreover, in a manual device this happens by raising the lever, in an electric one - using an electric drive.

Profile pipe bender: types

There are several classifications of profile benders: according to mobility (stationary, portable, wearable), type of transmission mechanism and type of drive. The last division is the most important in order to understand the structure of the machine for bending a profile pipe and make it yourself.

A bending machine for profile pipes can be equipped with one of three types of drive: manual, hydraulic or electric.

Hydraulic pipe bender for profile pipe

This type of roll bender is widely used in industry due to its ability to process parts of any size quickly and efficiently. In addition, such a device is often used when working with water supply and sewerage pipelines. Despite the complexity of the design of a hydraulic pipe bender, it is quite possible to make one yourself. All you need is a little experience working with.

industrial equipment

Pipe bender for profile pipes with electric drive This equipment is very large and heavy, but requires permanent installation. Electrically driven roll benders are capable of performing precision work without loss of quality. They can be completely electrical or electromechanical. The second type is cheaper, but requires partial manual control. can be equipped with automation for long-term battery life (however, the cost of such pipe benders is quite high).

Devices of this type are used mainly in enterprises and private workshops. For bending profile pipes at home would be better suited manual pipe bender

Manual profile bender

The most popular option among owners of small workshops and people involved in flexible pipes at home.

Advantages of this device:

Low cost. A manual profile bender can be purchased at very attractive price due to the simplicity of the device and low production costs.
Light weight and mobility. It is easy to move from place to place, since the design does not provide a base.
Rare breakdowns. Due to the absence of electronics, manual profile bending rarely fails. And if this happens, repairs will not take much time and money.
Possibility of assembling a homemade pipe bender. A machine for bending profile pipes can be made at home (for example, a pipe bender from a jack).

Flaws:

Relatively low accuracy of work. There is no hardware control in handheld devices, so bending accuracy depends only on your skills.
The need for physical effort.
Inability to work with large sizes. Using a hand-held device, you can bend parts with maximum size 4x4 cm.
Spending a lot of time for the most accurate execution.

Thus, a manual device is quite sufficient for working at home. If you carry out a large amount of work and use blanks big size, it’s worth taking a closer look at electronic or hydraulic pipe benders.

Review of profile bending manufacturers

Let's look at several interesting models of pipe benders for profile pipes.

Name	Characteristics		Description
Manual roll forming machine Stalex TR-40 391006	type of drive	Manual (mechanical)	This device is designed to deform pipes of both square and rectangular cross-sections. When working there is no need to have it nearby external source nutrition.
	Dimensions, mm	650x300x510
	Weight, kg	27,8
		40x40
	Manufacturer country	Russia
	price, rub.	10000
Hydraulic profile bender Stalex HB-40 100261	type of drive	Manual (mechanical)	This profile bender is well suited for small production. It has small sizes, which is very convenient and the ability to change rollers for bends of a wide variety of profiles.
	Dimensions, mm	1100x620x340
	Weight, kg	53,0
	Maximum pipe cross-section, mm	60x30
	Manufacturer country	Russia
	price, rub.	17500
Electric pipe bender Blacksmith ETB51-40HV	type of drive	Electric	This pipe bender can work in both horizontal and vertical positions, which allows you to bend (if necessary) quite long workpieces.
	Dimensions, mm	1200x750x1210
	Weight, kg	282,0
	Maximum pipe cross-section, mm	80x40
	Manufacturer country	China
	price, rub.	180414
Hydraulic profile bending machine Sahinler HPK 60	type of drive	Electric	This machine also has the ability to work in horizontal and vertical positions. Bends profiles to any angle and in one pass.
	Dimensions, mm	830x1140x1650
	Weight, kg	860,0
	Maximum pipe cross-section, mm	40x40
	Manufacturer country	Türkiye
	price, rub.	832500
Profile bender METALMASTER MBM 50E	type of drive	Electric	This device is very convenient because it has foot control and thus allows the operator to hold the workpiece with both hands. To protect the engine from overheating, the housing has a hole for removing hot air.
	Dimensions, mm	900x850x1700
	Weight, kg	450,0
	Maximum pipe cross-section, mm	60x60
	Manufacturer country	China
	price, rub.	227400
Profile bender Sahinler PK 30	type of drive	Electric	This profile bending machine is perfect for small private workshops. Has the ability to work in horizontal and vertical positions.
	Dimensions, mm	650x500x1400
	Weight, kg	220,0
	Maximum pipe cross-section, mm	30x30
	Manufacturer country	Türkiye
	price, rub.	259800

How to make a pipe bender: step-by-step instructions

For rare applications or a small workshop, a self-made pipe bender for a profile pipe will be quite sufficient. How to make such a device yourself? First you need to decide what task a manual pipe bender should perform.

For home use, a device capable of deforming small cross-section pipes is sufficient. The video above answers the question: how to bend a profile pipe with your own hands at home without assembling a complex device?

The second method is to assemble a pipe bender for round pipes a small section consisting of several parts: a concrete slab as a base, metal pins and a drill.

Procedure:

Application size chart onto a slab whose cells are 4x4 or 5x5.
At the intersections of the lines, the deepest holes are drilled.
Pins are inserted into the holes.
A pipe is inserted between the pins and bent in the required direction.

Bending profile pipes with your own hands using this device is physically difficult, so this method is only suitable for small-diameter products.

How to do it yourself handheld device for larger parts? A profile bender made from a jack is perfect for large cross-section pipes. In this case, the jack is securely attached to the frame (it is advisable not to use it for any other purposes to prevent the structure from becoming loose).

Note! When the pipe is deformed, it is supported on rollers, and the jack, using a “shoe,” slowly presses on it. This creates a smooth bend that does not affect the strength of the workpiece.

Conclusion

Homemade profile bender - perfect solution for occasional use in a small workshop. However, if you approach its assembly responsibly, you can design a device capable of bending not only small-diameter products (for example, a pipe bender from a jack). A correctly drawn up drawing is important, the dimensions on which are indicated for each element. The main thing is to follow the instructions exactly, then you can make a reliable and durable device.