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In some cases, it becomes necessary to bend profile pipes into an arc shape. This will require special skills and some tools. Special devices will help you create a pipe bender for a profile pipe with your own hands. For such products you do not need to purchase expensive materials and equipment. Read more in the material below.

Homemade unit option

Before you start producing a pipe bender for a profile pipe with your own hands, you need to find out why such equipment is required. A pipe bender is a device that helps bend a selected part from different materials with the required radius.

The element can be made of steel, plastic or aluminum, and also be profiled. The bend angle varies from 0 to 180 degrees.

Helpful information! Manufactured devices come in various types, so before making them it is worth choosing the most optimal option.

Types of pipe benders

Industrial devices can be classified by bending method or drive type.

Homemade devices can be made from inexpensive and unnecessary materials

Classification of devices by drive type

On a production scale, various types of machines are used. They will help you make suitable types of pipe benders with your own hands - drawings and professional diagrams.

The following types of devices are distinguished:

• Hydraulic machines can be stationary or manual. They allow you to bend parts with a diameter of 3 inches. Similar devices are used in production. With their help, huge amounts of work are performed.

• Electromechanical-type designs are suitable for processing any highways. Electronic capabilities help to accurately calculate the bending angle and the required pressing force.

• Manual devices are used for bending products with a small diameter.

Helpful information! It is important to consider that thermal effects on profile elements cause changes in the internal structure of the material. In this case, the strength properties may decrease. Repeated bending can lead to structural failure.

Device options based on pipe bending method

The part can be bent in various ways. Pipe benders are classified according to the bending method:

• Segment ones are equipped with a special mechanism that allows you to pull the line and bend it at a certain angle.

• Crossbow devices are equipped with a special device, which is a bending element.

• Spring devices are equipped with special springs that help bend plastic products.

Helpful information! The size of the possible angle depends on the characteristics of the product. When working independently, you should adhere to the minimum value of the bend radius. If you bend it over a greater distance, then over time such a highway may become deformed.

Self-production of the device

There are many auxiliary materials that tell you how to make a pipe bender for a profile pipe with your own hands: drawings, videos and professional diagrams will help you create a high-quality design.

It is worth considering simple options for homemade equipment. You can design a simple mechanism using a template and a special radius. Similar technologies make it possible to process aluminum and steel lines. The template can be created from ordinary boards. In this case, parts with a larger diameter than the pipes that need to be bent are selected. The selected boards must be securely fastened so that the pipe cannot jump out of them. To create a rounded gutter, the boards are cut to the required shape. The wooden product is attached to a solid base and a stop is mounted nearby to secure the workpiece.

Rolling unit drawing

Self-made products are able to bend even elements with thick walls. To do this you will need to use a winch. When using a profile line, bevels are not used when processing boards. The product is secured with special limiting devices.

It is also possible to create a rolling version of a pipe bender from wood, but this will require special rollers made of polyurethane or bearings. For products made from softer materials, you can make wooden bending units, while for harder lines you will need metal parts.

Parts required for installation

Helpful information! When making a machine yourself, individual parts are made of metal. Before installation, it is worth calculating the strength of the parts being processed and the quality of the manufacturing material so that the structure can withstand their processing.

Do-it-yourself hydraulic pipe bender for a profile pipe: drawings and circuit features

The creation of a hydraulic structure requires special attention. To perform such an installation you will need a channel, a jack with a special drive, rollers and a shoe. It is necessary to select metal sheets whose thickness is more than 3 mm.

Using welding units, a system in the shape of a rectangle is made from a durable channel element. Its height should be the same as that of the jack. This element should act as a pusher. It is important to select high-quality rollers to accurately grip the selected pipes.

Such a hydraulic unit has many advantages. This is ease of manufacture and low cost of auxiliary models. Using such an installation, you can bend any pipes even when cold. The video below will show you in detail how to make a pipe bender for a profile pipe with your own hands.

Helpful information! A profile pipe with a square cross-section will be easier to bend close to the ends of the line.

Video: example of a self-made hydraulic pipe bender

Do-it-yourself rolling manual pipe bender for a profile pipe: video and diagrams

The selected element is processed on a rolling machine in a certain way. The part is mounted on rollers and secured in the desired position. When the handle moves, the chain moves and moves the shafts. As a result, the profile pipe bends in the specified and required direction.

To create a rental unit, you will need to perform the following steps:

• Clips and special rollers for the bearing mechanism are machined. If you have drawings, you can order similar work from a specialist.

Rollers are made on a regular lathe

• The unit has three shafts.
• The design of the screw mechanism is being manufactured. A shelf is made from a channel. Holes are made in it for fastening the shafts, and threads are also cut to adjust the pressure shaft.

A private house or cottage located on a plot of fertile land is rarely used by zealous owners for passive relaxation after a busy week of work.

Very little time passes after the purchase, and a small polycarbonate greenhouse grows on the cleared site, and a fancy canopy appears above the veranda, protecting from wind and rain.

The basis of the above structures is a frame made of bent profile pipe. This article contains the information necessary for making a pipe bender at home - a tool that a craftsman and a smart owner cannot do without.

A pipe bender is a technical device related to machines, tools and mechanisms designed to work with metal.

With its help, you can easily and accurately bend profile and ordinary pipes along a given radius.

Bent pipes are used for the installation of heating systems, hot and cold water supply, as well as for the manufacture of a wide variety of frames and structural elements of complex shapes, which are widely used in construction.

The most common example is a greenhouse on a personal plot and the installation of a covered veranda of a private house.

So what's the difficulty? - you ask. Secure one end of the pipe and pull firmly on the other, and it's done!

But it's not that simple. Firstly, when using the proposed method, it is almost impossible to control the bending radius, and secondly, an unevenly applied force will create zones of stress concentration in the metal, which will lead to a general decrease in the strength of the structure and a significant reduction in service life.

Cost (price table for Russia)

Before moving on to a description of the device and principles of operation, as well as the process of making this mechanism with your own hands, I would like to explain why homemade pipe benders for profile pipes are in demand among craftsmen and simply “handy” owners.

The best illustration of the main advantage would be a small summary table of prices for similar factory-made mechanisms. The data includes minimum and maximum prices for products in the region, depending on the complexity and type of drive.

Region	type of drive	Minimum price	Maximum price
Moscow and region	manual	16700,00	31200,00
	hydraulic	47800,00	63400,00
	electromechanical	52300,00	70520,00
Krasnoyarsk and region	manual	7300,00	12400,00
	hydraulic	35000,00	42400,00
	electromechanical	40300,00	61500,00
Chelyabinsk and region	manual	9661,00	15990,00
	hydraulic	28995,00	47591,00
	electromechanical	42156,00	63245,00

A separate cohort includes multifunctional devices, the minimum price for which starts from 300,000.00 rubles. The use of such mechanisms is justified exclusively in the process of mass production of bent profiles.

How to choose

When purchasing any tool, an experienced craftsman is guided by the principle of reasonable necessity.

A machine or mechanism must properly perform the functions assigned to it, without introducing its owner into unjustified additional costs.

Main criteria for choosing a pipe bender:

• drive type(manual, hydraulic or electromechanical - depends on the intensity of use, volume of work and geometric dimensions of the profile pipe);
• maximum geometric dimensions the workpiece being processed (depends on the intended purpose. To build a greenhouse, a manual unit that processes a profile with a cross-section of 15x15 mm is quite sufficient);
• principle of operation of the mechanism(mandrel, segment or crossbow - depends on the specifics of the operations performed).

Size is also an important factor. Based on whether the tool will stand on the desktop, or whether it is possible to install a stationary multifunctional machine, it makes sense to pay attention to one or another model.

Device

Is it really so difficult to bend a piece of profile pipe? This question might be asked by a beginner “do-it-yourselfer”, a person who has never tried to perform such an operation.

A pipe bent over an elbow bends, the cross-section loses the required geometric dimensions, and plastic deformation of small areas and stress concentrators significantly worsen the strength characteristics. There is no need to talk about the appearance of such a “product”.

The main purpose of a pipe bender as a tool for working with metal profiles is maximum simplicity of operations to give the workpieces the required shape.

The most common among craftsmen is a rolling three-roller pipe bender with a manual drive. It consists of rollers arranged in the shape of an isosceles triangle, whose width is greater than or equal to the cross-section of the workpiece being processed.

The rollers located at the base of the mechanism are connected to each other by a winch with a chain drive. The roller located at the top of the triangle is connected to a screw clamp or press mechanism, and can perform reciprocating movements vertically.

The workpiece to be processed is placed on rollers located at the base of the mechanism, and is pressed tightly by a roller connected to the screw clamp mechanism.

By turning the winch handle, the master pulls the workpiece between the rollers. Without removing it from the machine, he increases the pressure by tightening the clamping screw several turns. Runs the workpiece again.

Photo: roller pipe bender

The above-described cycle is repeated until the workpiece is given the bend required by the master. In addition to the described version of the device, there are simpler, disposable designs.

In them, the bend is imparted by wooden or metal rods or patterns fixed to the frame.

Bending is carried out at a time, exclusively with the help of the master’s muscular strength, without any transforming devices.

As a frame, you can use wooden pallets, metal or concrete slabs, or earth into which rods are driven. The quality of bending on such devices leaves much to be desired; the profile often bends and “wrinkles”.

Kinds

Despite the apparent simplicity and uncomplicated operating principle, there are a huge number of designs and types of pipe benders. Based on their main characteristics, they can be divided into several fairly conventional categories.

Based on the type of drive, these mechanisms are divided into the following types:

• electromechanical pipe benders Stepper or conventional electric motors are used as a drive. Moreover, the latter are connected through a reduction gear, which allows you to extend the applied force over time and achieve better bending of the workpiece.

The electric motor, depending on the design of the mechanism, can drive both the rollers of a rolling pipe bender and the lever system of a drone machine.

Video: electromechanical pipe bender with mandrel and digital scale

• hydraulic pipe benders are a more powerful version of the conventional manual rolling machine. Using a hydraulic cylinder as a clamping mechanism significantly reduces the effort required to operate the tool. Hydraulic cylinder control can be either manual or mechanical;

Photo: hydraulic pipe bender

Video: hydraulic pipe bender

• Rolling type manual pipe benders are the most common machines present in the workshop of any self-respecting owner.

Photo: design of a homemade rolling pipe bender

Important! Pulling the workpiece and creating pressing force is carried out solely by the operator’s muscular strength. This category also includes disposable rod mechanisms, as well as pipe benders for working with elements of heating and water supply systems, which will be discussed below.

Video: pipe bender TR-01

According to the method of bending the workpiece, the most correct division would be:

• mandrel pipe bender, usually factory-made, most often uses a hydraulic or electromechanical drive. The main advantage of this machine is high-quality bending of profiles with a small radius of curvature. This is achieved by preliminary introduction into the processed area of ​​the workpiece of a rod consisting of a set of calibration elements, in size almost equal to the internal cross-section of the pipe and hingedly connected to each other.

During the bending operation, these elements “support” the walls of the profile from the inside, preventing them from crumpling and collapsing. The bending operation is carried out in one cycle;

Photo: drone pipe bender

Video: Mandrel pipe bender

• segment pipe bender is used to work with thin-walled soft metal pipes. It is mainly used by plumbers and heaters. It consists of two levers, hingedly connected to each other and equipped with pipe holders. A mandrel with the required radius of curvature is installed at the hinge joint. The handles of the tool are spread as wide as possible, the ends of the bent workpiece are placed in holders, and the middle rests on the mandrel. Bending occurs when the handles are brought together;

More expensive models are equipped with a set of replaceable or permanently attached mandrels

Photo: segment pipe bender

• The spring pipe bender is designed to give the desired shape to thin-walled elements of air conditioning systems. In essence, it is a hollow spring of a certain diameter, inside which the part to be bent is placed. To obtain high-quality bending, considerable experience in using such devices is required;

Photo: spring pipe bender

• The crossbow pipe bender is used to work with copper, aluminum and thin-walled steel pipes. It is a T-shaped frame, on the top crossbar of which holders for workpieces are fixed, and in the middle, parallel to the long crossbar, there is a movable lever equipped with replaceable mandrels. The lever is extended when you press the handle of the tool. The ratchet mechanism allows you to gradually increase the bending force;

Photo: crossbow pipe bender

Blueprints

You can assemble the simplest rolling pipe bender with your own hands using the following drawings.

Photo: drawings of a pipe bender for a profile pipe
Photo: drawing of a pipe bender for metal-plastic pipes
Photo: pipe bender drawing

Important! The only thing you should pay attention to is the presence in the drawings of exact dimensions in the usual metric system. A device assembled using tracing paper marked “about” and “approximately” is unlikely to be able to perform the required functions efficiently.

How to make it yourself

Photo: manual plywood pipe bender

Let's consider creating a rolling unit with a manual drive.

As the body of the three-roller mechanism, you can use three-millimeter duralumin sheets, onto which the main markings are applied using a simple pencil.

Photo: pipe bender for bending profile pipes

Seats for the rollers are made using a hand or electric drill. Excellent rollers will be made from rope pulleys with bearings.

Opposite the roller forming the vertex of the isosceles triangle, a high nut is welded, which will serve as part of the clamping mechanism.

The force is transmitted from the clamping screw using a U-shaped part with holes for the screw and the roller fastening. A washer welded to the hole for the coil is responsible for lifting the pressure roller.

The pipe bender is ready. And although it does not have a winch mechanism for rolling pipes, which would greatly complicate the design, the provision of a bent profile for the construction of a mini-greenhouse will be put on an industrial footing.

Video: profile pipe bender

When arranging a site or preparing for the dacha season, the need arises for arches from a profile pipe. They are needed when constructing a greenhouse, assembling 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. Tools include a grinder with a metal disc, a welding machine, and a 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).

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.

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. This simple 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.

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.

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 must be made removable, and a reliable method of fastening must be thought out. The second option is to make videos of complex shapes, such as in the photo. Carve several steps for different pipe sizes.

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 don’t have such an opportunity use what they have, right down to the 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 fix them somehow (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 it’s just right for making arcs for a greenhouse or gazebo with your own hands.

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.

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.

Video materials

Explanations and photos are good, but seeing the assembly process or the operation of the finished unit is much more useful. The first video shows the process of assembling (welding) a manual pipe bender for a profile pipe. The option with a movable middle roller was selected.

The second video is about the operation of a simple pipe bender with a moving platform. This option is not suitable for large sections, but it can bend a small cross-section pipe up to 40*40 mm.

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.

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 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.

Having inserted the pipe, it is pulled towards the arc. It takes a lot of effort and 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.

The manufacturing technology of which you will learn from this article. We will tell you how to make a pipe bender for a profile pipe with your own hands, provide diagrams, drawings and a list of necessary tools for performing work at home.

Contents of the article

The need for use and cost of industrial pipe benders

When deciding on a profile pipe, inexperienced craftsmen often resort to manual mechanical bending, for which they use primitive structures in the form of support pins driven into a concrete slab, according to the pattern of which the pipe is bent.

However, this method has a number of significant disadvantages, the main one of which is labor intensity: the profile has increased strength due to the presence of stiffeners - it is extremely difficult to bend relying only on physical strength. Note that the strength of the profile decreases due to manual bending, since it is accompanied by the application of uneven forces, which leads to an increase in internal stress in the material.

There are a large number of devices for bending profiles on the construction market, but they are exorbitantly expensive, which makes it impossible to purchase such units for use at home. As an example, we give the average price for machine models from the leading company on the market - the TV company:

• manual pipe bender TV-2 -12 thousand rubles;
• roller profile bender TV-4 – 30 thousand;
• pipe bender electric roller profile bender TV-10 (double-sided) – 76 thousand.

To make a manual machine at home, you will need to spend about 3-5 thousand on component materials, and in terms of efficiency it will not be inferior to industrially produced products.

Making a simple pipe bender with your own hands

We bring to your attention instructions, following which you can make a manual pipe bender of a profile pipe with your own hands. The manufactured machine allows you to bend profiles with a cross-section from 10*10 to 25*25 mm at an angle of 0-180 degrees.

This is the simplest design, for the manufacture of which you will need the following materials:

• fastening strip with a hole 30 mm in diameter and 4 mounting sockets for M6 studs;
• a handle for rotation, which can be used as a reinforced thick-walled square profile;
• large roller with a diameter of 173 mm;
• small roller with a diameter of 65 mm;
• axis for rotation of rollers with a diameter of 30 mm and a height of 61 mm, with an M14 thread on the end part;
• washer C16 and nut M16.

The mounting strip for the machine for bending profile pipes is made of sheet metal of thickness not less than 7 mm. It is necessary to drill holes in it for installing the roller rotation axis and installing M6 studs (socket diameter 8 mm); holes are also drilled on the bar for the fixing bolts.

The handle (lever) for applying bending force is made of a square profile with a cross-section of 36 * 36 mm (wall thickness 4 mm, to the inner end of which two plates with 30 mm holes for the roller fixing bolts are welded. Please note that the efficiency of work directly depends on the length of the handle Subsequently, it can be extended using a crowbar inserted inside.

For a profile pipe it is manufactured according to the following algorithm:

1. The fastening strip is fixed on the mechanic's workbench using M8 bolts. The workbench or table on which the device is installed must be well secured to the floor to avoid shifts during the bending of the profile.
2. Between the plates of the handle there is a large roller, which is placed on the rotation axis threaded through the mounting bar and clamped with a nut.
3. The axis of the small roller is installed and fixed.
4. M6 studs are attached to the mounting sockets of the plate, which will fix the extreme part of the profile during the bending process. Mounting plates selected according to the profile size are installed on the studs.

How to bend a profile pipe with a manufactured device? The pipe bender handle is moved to the extreme left position so that a straight axis is maintained between the mounting plates and the hole between the rollers. A profile pipe is inserted into the mounting socket and the machine lever is rotated until the bend reaches the required angle.

Homemade pipe bender for profile (video)

High-precision profile bending machine

Bending a profile pipe along a radius is performed using a more complex device, which can also be done at home. The diagram and design features of the device are shown in the image.

This bending machine for a profile pipe is fixed on a frame table (without a table top), the dimensions of which determine the size of the supporting frame. This scheme uses channel bed 10 cm high and 77 cm long.

To make a pipe bender follow the instructions:

1. From a strip of metal 5 mm thick, 4 support posts are cut out for small shafts along which the profile will move. A hole is cut out at the upper end of the racks for the axis of rotation of the rollers. Dimensions of racks – 5*10 cm.
2. The racks are welded to the channel at a distance of 30 cm from each other. Rollers for shafts can be purchased at the hardware market; such products are used when installing sliding ones. After welding, place the profile on the rollers and check whether the structure has moved during the welding process. If deformed, you will need to do all the work again.

   

3. Next, a plate is cut out of sheet metal 8 mm thick for the load-bearing part of the machine; the dimensions of the plate are 25*25 cm. We need to install a central roller on the plate, by rotating which the bending profile will move.
4. Wooden spacers 10 mm thick are installed along the edges of the plate, which are glued to the metal using superglue. The supports are needed so that when rotating the roller does not touch the carrier plate.
5. To install the roller you will need two bearings, inside of which the shaft axis will rotate. Good fit bearings series No. 203 from CRAFT. The bearings are secured with bolts in pre-drilled holes inside the stands.

   

6. Next, you need to make four racks 40 cm long from the 50th corner and, using welding, secure them to the corners of the plate with the central shaft, fixing it on the supporting station of the machine (channel). The plate is installed in the central part of the racks so that between the axes of the rollers there is a distance equal to the size of the profile you plan to work with.

   

7. Plugs are cut from 8 mm sheet metal and welded to the top of the racks. Next, you need to make a plate under the machine cover on which the adjusting screw will be installed. A hole is drilled inside the plate to match the diameter of the screw used (you can use grape press screw).
8. Holes for bolts (diameter 10 mm) are drilled in the rack plugs and the cover plate is fixed to the racks.
9. A thread is cut into the hole in the cover and a heel is screwed in, inside which the pressure screw will rotate.
10. A 15 mm corner is welded to the plate, acting as an external screw stop, for which a hole is drilled in the corner, parallel to the axis of the heel. A thread of the appropriate size is cut into the hole.

    

11. All that remains is to make a handle for the central shaft and fix it on the axis of rotation of the roller. As a handle, you can use a shutter bolt or a piece of fittings of the appropriate length.
12. It also wouldn’t hurt to paint the machine to make it look more presentable. The paint coating will also protect the metal from corrosion.

How to bend using a machine made? The profile is laid on the shafts, after which the central roller is lowered using a pressure screw so that it rests against the pipe. Next, the rotary handle is rotated and the shafts move the profile, which bends under the pressure of the central roller.

Having stretched the profile along its entire length, we lower the clamping screw even lower and repeat the operation, moving the profile in the opposite direction. The process is carried out until a bend of the required radius is obtained.

This device, which was manufactured at home, can bend a profile no less effectively than an industrially produced electric roller profile bender.

A pipe bender for a profile pipe is a tool needed for certain situations, and there is a steady demand for it in the market. The pipe bender can be used in a variety of areas where there is a need to give a pipe a specific shape. Of course, such a tool can be purchased, but if you want to save money, you can make it yourself.

To assemble a pipe bender, you need knowledge about its structure, operating principle and characteristic features. This work will also require the appropriate tools and instructions. How to make a pipe bender for a professional pipe with your own hands will be discussed in this article.

Main characteristics of a pipe bender

Structurally, a profile pipe bender is a specific machine for rolling profile pipes, which allows bending pipes with various profile cross-sections.

Good pipe benders for profile pipes allow you to solve several problems, including:

• The ability to bend the pipe at the required angle, the value of which can reach 180 degrees;
• Ability to work with pipes in a fairly wide range of diameters - from 5 to 1220 mm;
• Possibility of processing pipes made of different materials (if necessary, you can bend both metal and plastic products).

In principle, there is no need for a pipe bender for processing polymer pipes - such material can be bent in other ways. But when processing metal products you cannot do without professional equipment.

Of course, you can always purchase a ready-made tool or rent it, but these solutions cannot be called the best. Renting specialized equipment is usually expensive, and purchasing it is even more expensive. In addition, you need to understand that buying a pipe bender for a one-time job will not be the most profitable option. To avoid unnecessary costs, many people make pipe bending machines with their own hands.

Application of pipe benders

However, the main scope of application of such equipment is the laying of various pipelines and installation of buildings, in which profile pipes are often used as fittings. Regardless of the shape and type of raw material used for the production of pipes, they can still be bent only using special machines - otherwise a positive result cannot be achieved.

The scope of application greatly influences the bending parameters of pipes. The fact is that the material can have different sizes and raw materials, and the requirements for bending are different. To process pipes properly, you need to use equipment of the appropriate power and capabilities. In addition, an important aspect is the drive of the device, which can be manual, electric or hydraulic.

Types of pipe benders for profile pipes

The main factor by which pipe benders are classified is the device drive, depending on which three categories of devices are distinguished:

1. Hydraulic.
2. Electrical.
3. Manual.

There are many differences between these devices - different configurations, operating principles and equipment costs. It is worth considering them in more detail to understand these differences.

Electrically driven devices are among the most expensive, but the high cost is fully justified (more details: ""). The technical characteristics of such devices, including high power, precise adjustment of the pipe bending angle and convenient control, are at the highest level. As a rule, professional installers use this tool.

Hydraulic pipe benders, although somewhat inferior in cost to electrical devices, also cannot be classified as budget ones. Such devices are usually used in situations where the power of a manual pipe bender is not enough.

Hydraulic devices have many advantages:

1. High pace of work. Thanks to its high and stable power, a hydraulic pipe bender can process pipes much faster than manual devices.
2. High processing precision. Unlike manual devices, hydraulic devices allow you to bend the pipe with an accuracy of 1 degree.
3. Ease of operation and maintenance. This type of device is very easy to use and does not require special maintenance. Even if the device fails, you can repair it yourself. In addition, the work will not require a lot of effort, which is simply necessary when processing with manual pipe benders.
4. Light weight and compact. If necessary, any hydraulic pipe bender can be moved from place to place without much difficulty.
5. Versatility. Unlike manual devices, which have a number of unpleasant limitations, hydraulic pipe benders allow you to work even with steel products of medium diameter.

In addition to the types of pipe benders already described above, there are also manual devices that are characterized by the lowest cost and simplicity of design. A manually operated pipe bender for profile pipes is quite mobile and easy to use. It is also worth noting that if they want to make a pipe bender with their own hands, most users choose this option.

However, you have to pay for the low cost with other qualities. Firstly, manual devices are poorly suited for large volumes of work due to the difficulty of using the device for a long time. Secondly, the principle of operation of such devices is simple, but it is difficult to work with them - you have to put in too much effort to bend the pipe well. Thirdly, manual pipe benders are only suitable for processing plastic and aluminum pipes. If you really want to, you can also process steel products, but only if their diameter is small.

In addition to classification by type of drive, pipe benders are divided according to the method of bending the pipe, depending on which three types of devices are distinguished:

• Crossbow, in which the pipe is bent due to a special shape;
• Spring manual, bending the pipe due to the force generated by the springs;
• Segmental, having a structure made of dense material with installed mandrels, around which the pipe is bent.

DIY manual pipe bender

Many owners are concerned about the question of how to make a manual pipe bender for a profile pipe with their own hands. This question is quite relevant - purchasing ready-made tools is expensive, and the quality of some of them leaves much to be desired. It is not surprising that various pipe bender designs are proving popular and in demand.

To create a simple manual pipe bender you only need three components:

• Concrete slab;
• Several metal pins;
• Hammer.

Assembling all the parts into one whole is not particularly difficult. First you need to divide the slab into squares with a side of 4 cm or 5 cm. When these squares are marked, deep holes are drilled in their corners using a hammer drill, into which pins are then installed. It is best to have drawings of homemade pipe benders for profile pipes with you so that you can constantly refer to them.

The operating principle of this primitive design is quite simple: the pipe is placed in the space between the pins and bends due to physical effort. Such a manual bending machine for profile pipes is not very convenient to use and does not allow achieving high accuracy of the bending angle, but for a small amount of work in domestic conditions its capabilities are enough.

Alternative designs for manual pipe benders

The simple pipe bender described above is not suitable for all situations. If higher performance is needed, you will have to look for a more complex design. A fairly effective option for a homemade pipe bender is a design whose main working element is a jack. To assemble manual pipe benders for a profile pipe with your own hands, you will need a hydraulic jack that can withstand a load of up to 5 tons, a strong base and pins.

There is another interesting option - a pipe bender with a chain drive, which is started using a handle. The drawing of a pipe bender of this type includes a metal base in the shape of the letter P, a clamp, three rollers, a winch and a chain. The parts are connected by welding.

The assembly algorithm for such a tool is as follows:

• First of all, a U-shaped part is attached to the base;
• Two rollers are attached to both sides of the part, and the third is installed so that they all form an isosceles triangle;
• A chain with a connected winch is wound onto the rollers.

Homemade hydraulic pipe bender

Hydraulic pipe benders have many advantages over manual devices, but all of them are determined by the complexity of the design. Since hydraulic equipment is complex, it will be much more hassle to assemble it yourself. To assemble such a pipe bender, you will need a solid base, a U-shaped metal piece, a shaft, a pulley, a chain and a hydraulic rod.

Making a homemade hydraulic pipe bender looks like this:

• The first step is to install the shaft on the base;
• A pulley is attached to one end of the shaft, and a chain is attached to the second, after which the next shaft can be installed and connected to the first by a chain;
• In the lower part of the structure you need to cut an opening for the movement of the rod;
• Next, the third roller is installed, which is the main element that bends the pipes;
• The third roller shaft is installed in the grooves of the base.

Homemade rolling machine for bending pipes

The set of materials required for work looks like this:

• Concrete base;
• Wheels;
• Winch;
• Engine;
• Metal jumper;
• Jack;
• Gearbox.

It is best to assemble a pipe bender for a profile with your own hands in several stages to simplify the work:

1. The first step is to prepare the base. It will require metal elements and a welding machine. Four supports are attached to the base, after which holes can be drilled in the structure, allowing you to adjust the bending radius of the profile pipe.
2. Next, a jack is installed using bolts and plastic, after which you can attach a winch with rollers, both engines and a jumper.
3. The last step is the installation of the “fungus”, which is essentially an ordinary pipe curved at a right angle. The “mushroom” is attached to the upper part of the machine body.

A pipe bending machine for a profile pipe assembled according to this scheme has a complex design, but the difficulties of assembly in the future will more than pay off due to efficient and simple operation.

Conclusion

There are a variety of options for pipe benders for profile pipes. If we are talking about purchasing such a device, then everything depends on the choice of the necessary technical characteristics, and with self-assembly it will also require a lot of effort aimed at creating the most efficient and reliable design.