Pipe bender for a round tube with your own hands - video lessons, drawings. How to make pipe bender to work with round pipes Universal pipe bender for profile and round pipe

Purchase pipe benders for a round tube is not a problem with the current assortment. But if the tool you need exclusively for home use, buy industrial and factory machines does not make sense. More economical and easier to make a homemade unit.

To make with your own hands the effective tube bender intended for pipes with a round cross section, it is necessary to have at least a minimum theoretical base.

Pipe bender differs in the type of drive used.

Hydraulic. The most common version of the pipe bending is hydraulic. In this case, the machine can be homemade or factory. Make a good hydraulic unit with your own hands is not a problem. To do this, you will need a hydraulic jack. This option is good because it makes it possible to bend a decent round tube in its parameters.
Mechanical. Less powerful homemade pipe bend. With it, you can bend the average value of the product.
Manual. Manual drive most common in the household. Almost every homemade machine has a manual drive.
Electric. These are factory aggregates. You can make it with your own hands, but you will need appropriate drawings, specific skills, electric motor and a number of other components.

If you need to bend round tubes with a diameter of up to 30 millimeters or profile pipes up to 40 millimeters, the manual machine will become the best solution. For more serious tasks, it makes sense to make hydraulic pipe bending.

Options for homemade machines

To get pipe bender for a round tube, it is not necessary to spend great money for the purchase of a factory machine.

You can make a manual or hydraulic unit with your own hands. There are various drawings, from the simplest to quite complicated. But we offer you exactly the simplest drawings, allowing you in a short time to get a full-fledged hand flexor for round pipes.

Consider the following structures collected from:

Nuts and metal tube;
Tree;
Hooks;
Cylinder and rollers.

Let's start with the easiest and ending machine, the technical capabilities of which are reminiscent of hydraulic pipe bending.

Nuts and pipes

Elementary example of manual installation for bending round pipes. Here a special drawing and will not need, because the machine is made with their own hands from two elements.

You will need a durable metal tube or rod. The handle should not be deformed when you will apply force for flexing.
A nut is fixed on the end of the rod. In this case, the nut should be chosen so that its inner diameter is greater than 25-30 centimeters than the diameter of the bend round tube.
Such a homemade machine can cope with a pipe with a diameter of up to 30 millimeters.
The connection of the rod with the nut can be carried out with the help of welding. Another option is a threaded connection. It is more difficult to implement it, but then you can change the sizes of nuts. To do this, a small steel cut with a carvings is welded to the nut. The handle also performs the corresponding cuts for the thread.
The flexible tube is put on the floor. Foot on one end of the pipe, and the second is capturing the nut. Gradually, move the handle to yourself, due to which a bending of 10 degrees is happening. Flex until you get the bending of the desired parameters.

From wood

Another example of the simplest pipe bending with your own hands for round-shaped products. There are no many auxiliary parts here, because the drawing is obtained elementary.

Cut from the board semicircle of the required diameter. You can make several such items if you want to bend different by the parameters of the pipe;
The width of the site that the tube is stacked must exceed the size of the pipe itself. Otherwise, the product can break, injury;
The board-pattern is mounted on the wall or table;
Near the board you can install one more focus from metal or wood, where the bending pipe can be dried;
You can make such a template from a solid board or combine several boards. It all depends on how the angle of bend you will need.

Relying on the drawings and see photos, video instructions, collect homemade pipe bending from wood will not work.

From hooks

Nice variant of the machine. The drawing you will not need, but definitely observe the size.

Apply on the table where hooks will be recorded for fastening them.
Hooks themselves are available at any building material store. Choose those produced from high-quality metal. Otherwise, your pipe just breaks them.
Secure the hooks on the base. The step should be no more than 50 mm. Fixing hooks, you set a certain radius. The distance between the elements directly depends on the parameters of the round tube.
A blank is inserted into the resulting pattern.
As in the first case, it is desirable to establish an additional emphasis, superior to the strength of the hook.
Plus the design is that you can easily bend the pipe with your own hands. At the same time, for different pipes do not have to do different templates. It is enough to remove the hook and move it to another point, in order to reduce or increase the angle.

Each of the above machines is easy to assemble with their own hands. If you need a more serious unit, resembling a hydraulic machine, consider another way.

From rollers and cylinder

This is not a hydraulic unit, but similar to technical capabilities to the hydraulic machine. With it, you can bend round pipes of a larger cross section. An indispensable device for repair, construction, when you do not want to spend money on the purchase of factory settings.

The price of the finished manual tube bending can be from 4-5 thousand rubles. And the hydraulic will cost several times more expensive. Therefore, for many it is easier to build something like with your own hands.

To build pipe bending you will need cylinders and rollers. This machine bends pipes at an angle of up to 360 degrees, which is very serious.
Take a pair of metal plates. Their length and thickness are 30 cm and no more than 10 mm respectively.
Also buy four steel corners with shelves. Their size is about 5 by 5 cm.
Using wooden boards, collect a pattern. Its thickness is about 30 millimeters, no more.
Steel plate Connect with the bottom side of the template from the board.
To increase strength on the base, corners are fixed.
The second plate of high-strength steel is mounted on top of the template. It holds a hole in accordance with the sizes of the screw, which will serve for installation. It is the bolt that will focus, because choose a durable element.
On the top plate, set the corners, rollers. Rollers must navigate the inside of your machine.
The fixed cylinder and freely moving rollers allow you to perform work on flexing pipes.

Although such a model is more intended for profile pipes, adapt it to bending a round tube is quite possible.

These are just a few options for how you can create a full pipe bender.

To work with pipes or corners, a special machine is required, called pipe bender. A similar design allows bending metal elements to a given angle. If necessary, you can make professional pipe bender with your own hands, which is used in a wide variety of industries. Unlike the industrial version of the execution, home-made pipe bending is much cheaper. When conducting work, you can use fir-handed materials, which will lower the cost of the structure. Consider how to make pipe bender do it yourself at home.

Trubbibe device

There is simply a huge number of different types of the device under consideration. Before working on its creation, it is necessary to develop a drawing of a pipe bending or download it on the Internet.

Pipe bender for a round tube with your own hands can be made when taking into account the following features of its device:

Run-in A similar pipe bending machine is characterized by the fact that one end of the workpiece is fixed, and a fixed pattern is used for bending. Officon is carried out when the clamping rollers are applied. This scheme of manual pipe bending is used for many years.
Winding. Special pipe bender for aluminum pipes is characterized by the fact that the workpiece is pressed against the movable pattern, which uses a roller. The broach is carried out between the roller in motion and special emphasis. As a rule, the drive is electrical, since the required rate of the accompanying force is quite high.
Arblet design. This scheme is represented by a combination of two fixed rollers, as well as a movable template. The effort is transmitted to the workpiece through the movable template, which is located between two rollers. By controlling the movement of the rolling element, the most suitable bend angle is selected. It should be borne in mind that the Puppon Pubbier, which serves as a template, can have a different shape.
Rolling or rolling. In this case, the scheme is represented by a device with three rollers, two of which are supporting and one movable. The bend radius is regulated by changing the position of the central roller. It should be borne in mind that such a device is considered universal, since the bending radius can be adjusted in a sufficiently large range. The size of the pipe-bender of this type is relatively small, the homemade design can be compact.

Choosing the most appropriate design for homemade manufacturing, it should be borne in mind that an embodiment based on the principle of the rolling is often produced in an industrial method due to the complexity of the high complexity of the main mechanisms. The arbalt method of bending today is extremely rare, as it has one essential drawback: the pressure is concentrated on the top of the template. When applying the arbalt machine, there is a possibility of a significant reduction in the thickness of the pipe wall, as well as its rupture. It is not recommended to use a similar device for flexible thin-walled blanks.

Most of all got the distribution of the design that works on the rolling principle. It is practically devoid of all the above deficiencies, it has relatively small sizes, can be portable, it is possible to adjust the angle of bending.

The homemade machine can have the most different design. When choosing a type, the attention is paid to which radius should be obtained. The most important parameters of the workpiece that can affect the choice of a suitable design, the thickness of the pipe walls and its diametrical size are considered.

Types of pipe bending

The design under consideration can be classified by a fairly large number of features. For sale there are universal versions, as well as for narrow-controlled use. The device varies on the following features:

By type drive. An important element of the design can be called a drive that is hydraulic, electric, manual or electro-hydraulic. Recently, the larger distribution was obtained by an electric drive, as it is compact and very efficient. Hydraulic is greater efficient, but it is folded in operation, it takes a lot of free space and requires periodic service. Manual pipe bender is characterized by the presence of a mechanism that significantly increases the applied force. If we consider homemade versions, then they make manual pipe bending with your own hands. In addition, you can create with your own electrically driven pipe bender. But the hydraulic version of the performance is practically not made independently.
Classification is carried out in the degree of mobility. Allocate stationary and portable design options. In most cases, the universal manual pipe beggage is performed as a portable design. Homemade pipe bending for a round tube can be attached to the base in various ways. It should be borne in mind that during the performance of the work, part of the voltage occurred is on the basis. Therefore, when creating a self-made version of the execution, you need to securely fix the device.
According to the method of exposure to the workpiece - the main sign of the classification. For example, a cross-type pipe bender has its own special design, which is suitable for flexible metal or metal-plastic pipe. In addition, it is distinguished by a design that works on the principle of running, winding or rolled products.

The pipe bender homemade for metal-plastic pipes may be the most different type, but most often create a mechanical type when, due to the special design, the transmitted force increases several times.

Instructions for the manufacture of pipe bending

Recently, a rather great distribution received a question how to make pipe bending with your own hands. Such equipment is required when adjusting the production activity of the most different type. The simplest pipe bender with their own hands has a template design type. This is due to the fact that the rollers for pipe-bender do it yourself quite difficult.

Considering the template tube bending for a round tube. Note the following moments:

In the manufacture of structures, a tree array is quite often used. Due to this, work is significantly simplified and costs are reduced. However, it is worth considering that low strength and rigidity of the tree determines the use of such a machine only for aluminum bending, which has high plasticity.
The applied wooden bar must have dimensions that are larger than the diameter of the workpiece processed.
The template must have a radius that will correspond to the bending radius. In order to simplify the process in the central part of the surface, which comes into contact with the workpiece, a small groove is created.
For convenience, two handles are created that have a metal fastening.
By creating pipe bender at home, it should be attached to a solid base, and on the reverse side, install the stop.

An important point we call that the design under consideration is most used to be flexible for a large diameter. In addition, the shoe for pipe-bender of this type is not required, the load is distributed evenly, which allows the processing of thin-walled blanks.

You can make pipe bender with your own hands on other drawings. Before choosing the most suitable design, you should consider how it will often be work, for what kind of billets is made by the machine, how popular production will be. The design of the template type is characterized by quite large sizes, however, it is enough to carry out carpentry work, the materials used have a low cost.

The most complex design is the homemade tube-type roller type. In this case, the clamping roller is applied to transmit effort. In the manufacture of the design can use metal and wood, it all depends on how much it must be mobile and for what effort is designed.

The following points can be attributed to the features of this design:

For pipes made of soft materials, a tree is more suitable for a major material. It can be used in the manufacture of a roller. For steel pipes, it is necessary to use a metal, since the amount of the transmitted effort will be significant. If you wish, the rollers can be purchased or made with your own hands at home.
Features of the design determine the presence of a moving and fixed roller. At the same time, a P-shaped holder is located in the central part.
The bending radius depends largely on the size of the applied rollers. Nominable Therefore, the movable roller must be quickly dismantled if necessary to set an embodiment with another diameter.
The installed holder should also be able to rotate.
The handle is mounted on the installed holder, with the rotation of which the force will be transmitted. It should be borne in mind that the handle acts as a lever. That is why it depends on its length, what an effort can be transferred.

A similar machine is suitable for the production of large parties, as rollers for pipe bending make with their own hands quite difficult. The device is suitable for working with round-section pipes.

A common question can be called how difficulty is the manufacture of such a mechanism. When using a bending machine of this type, the following points should be considered:

To begin with, it is necessary to study the drawing or photos of the equipment under consideration. Only understanding with the principle of his work, you can create effective equipment with a wide range of use.
The main elements of this design is a relatively small amount. An example can be called two pulleys that can be made of wood or steel, frame with a lever and a pressure roller. It is quite important to create a reliable basis that will take part of the accomplished effort.

The principle of operation is quite simple:

The billet is placed in a stuffing roller's groove.
The pipe is fixed in the desired position with a clamp.
With the help of the lever, the workpiece is wrapped around the template, which also uses a roller of a certain diameter.

In order to significantly increase the efficiency of the design, an electrical drive can be applied. However, it should be borne in mind that with an electrical drive, it is rather difficult to monitor the diameter of the roundabout. In addition, the installed electric motor must transmit rotation through a lower drive, since the rolling speed of the roller is small. To do this, install a gearbox or clinorem.

Arblet pipe bending

A brightly unusual design has an arbal type machine. He got its name due to similar features with medieval weapons. Arblet pipe bending has the following features:

The basis of the structure is represented by the frame that can be made when applying corners and a schuleler. The connection of all elements is carried out when welding, the detachable methods are not recommended to be applied, since the resulting design must have high rigidity.
After creating a frame, a fastening of two rollers is carried out.
The homemade version of the execution can be described in that the force is transmitted directly through the jack of mechanical type. For the pipe of a small diameter of the pressure being created should be quite enough. The transfer of force is carried out through a shoe manufactured from durable metal with a low plasticity.

The pipe bender of the arbal type is more suitable for the billets of the circular section. This is due to the fact that the product with another cross section can be strongly deformed at pressure.

Hydraulic pipe bending

Making a pipe bending machine with your own hands, should determine what kind of drive will be. In most cases, homemade versions have manual drive, as it is easy to manufacture and costs cheaply. However, such a design cannot work with the billets that are manufactured when using rigid metals. Hydraulic pipe bender allows you to work with large diameter blanks and with a substantial wall thickness, however, the design is quite complex in execution and has many features.

Machining machine for a round tube with hydraulic drive should be considered the following points:

The transmission of effort is carried out through the working fluid, which is used or water. All highways must have a high degree of tightness, as well as to be calculated for a certain pressure.
Compressor can be used to create pressure.
The pressure is transmitted to the working body through the hydraulic cylinder.

Pipe bender for metal-plastic pipes with their own hydraulic drive hands can have the most different design. An important element in this case is exactly the drive that allows you to automate the process of bending and increase the scope of the device.

Pipe bender from jackt

Most often, manufacturing home-made pipe bending, a jack is used as the main element. It happens a few types. The jack itself is initially manufactured in order to increase and concentrate the accompanying effort, due to which the design can lift heavy mechanisms, for example, cars.

Homemade tube bending from the jack, as a rule, has a fairly simple design:

The billet is clamped between two fixed rollers.
The force is transmitted to the gap between the rollers.
The distance between fixed rollers largely determines the radius of the flexible and the value of the required effort to obtain a certain angle.

As previously noted, an arbal type pipe bender can be made when applying a jack.

In conclusion, we note that almost any device is a relatively simple machine, which by distributing the attached efforts to bend pipes and other billets of this type. It is often used to flexing products manufactured when using color alloys and steel. The industrial design of the design is bypassing homemade, as a rule, according to the degree of automation of the process. However, the cost of industrial pipe bending can exceed several tens of times the costs associated with the production of self-made option. That is why for household use or small-scale production, homemade tube bending is more suited to a greater extent.

Each owner of a large garden plot or a small summer cottage, at least once in life (at a minimum), it may be necessary for pipe bender - a device for flexing the profile pipe.

For example, it may be a blank for a greenhouse frame or a canopy, arbors, or any other metal structures.

On the base for the sale of metal, and in other production, devices of factory manufacturers are usually used, but this pleasure is not cheap. To save your budget for more pleasant spending, it is more profitable to make the manufacture of the device into manual, on your own.

For this design, as they say, "a lot of mind is not necessary," and there will be no deficit in the details either, the drawings of the pipe-bending really create yourself.

Versions of pipe-bend

You can bend the pipe "home" way, fill the pipe with sand, heat up to red with a soldering lamp or a gas burner, then bending the pipe. This method is not recognized as priority among masters, it is laborious and does not give sufficient accuracy, there may also be chances and deformations.

To get a perfectly bent pipe, with the observance of norms and specified parameters, do not cause damage to the source material, the masters are used in the work of specialized pipe bending.

Large popularity purchased lever type pipe begins. This elementary invention works on the "lever" principle - the force concentrates in a certain place, and the bend merges with the form of the template you created, which can most often be removed and replaced by another.

Most often, the set of such structures provides a pair of additional templates for pipes of different diameters. There are similar in the design of the aggregates, manual pipe bending, drone or arbaltny, they allow you to bend short sections of round steel pipes, exposing only cold processing.

Arblet devices are very compact, and are valued in the field of installation and engineering communications.

What is the work of the pipe-bending

The principle of operation is completely simple, it consists in heating the pipe, the pipe heats up to red and becomes very plastic, pliable to changes. Each type of pipe bending has its own range of features.

The main functions are the quality of bending and the ability to bend pipes of different size and diameter.

With the help of additional rolling devices, the bending of the larger diameter is achieved. The device functions using shafts, included three of them.

Guides and pressure. The pipe passes through the moving elements, the degree of bending is set to force the clamping roller. If the radius of the curvature of the finished product turned out to be small, the procedure should be repeated.

Bending pipes by template

In most cases, the simplest option suitable for absolutely all masters, even beginners, is a pattern of wood. The boards are chosen over the thickness of the flexible pipes, be sure to leave the stock of the board in a couple of centimeters.

So that during operation, the profile did not drive from the template, on the ends left a slope. The pattern is rigidly fixed on the floor or other stable surface, the mounting of the pipe is carried out nearby.

The profile is inserted into the gap between the template and the focus, smoothly and gently pressed onto its other end, pressing the pipe to the template. The winch either the lever will make the job easier.

A huge plus of such a process, saving money and simplicity of execution.

Note!

Any device has drawbacks, and this method is not an exception. The bending is not accurate, poor quality, as well as the template will be disposable (used only on one diameter of the pipe).

Pipe bender snail

In the stamping of the same billets with a large circulation, a small radius of curvature, an indispensable pipe bender-snail.

His dignity in small-sized sizes and ease of management. The disadvantage will be the limitation of the radius of rounding, only not large sizes.

Rolling tube

Niche of versatility and practicality occupied fixtures performed in manual - rolling pipe bending (bending machines), any bend angle can be made on such machines.

The configuration is not particularly different from other models, they also have the base and shafts. The movable roller is tuned, and stretches its rotation of leading shafts.

Note!

Pressing can be enlarged with a winch, levers or an electric drive. However, for the production of the house, such a design is quite complex in execution.

To reproduce such an aggregate, a lot of turning and welding works will be required. If you still decide on the manufacture of such a model, it will last you for a long time and will delight the functionality.

How to make pipe bending with your own hands, the question in the modern world is quite relevant. To facilitate the task, you can find a photo of pipe-bend on the Internet to roughly understand how it should look.

There is also many drawings of pipe-bending, which are easy to use. After reviewing all the information and evaluating your strength and the presence of the necessary components, quietly proceed to work.

Photo pipe bending do it yourself

Note!

When performing home construction or plumbing works, it is often necessary to bend under various radius metal pipe.

The bending pipes of the circular section necessarily fall when laying water supply networks or heating systems. If you try to bend the workpiece about the rectangular focus - the hall will arise, and the pipe can simply burst.

In addition, with improper bending, the inner section decreases, which negatively affects fluid passability.

You can quickly bend a round tube using a special device - pipe bending.

Buying an industrial instrument is justified only for masters who bent the pipes professionally in the commercial scale. The cost of this device is large enough. Therefore, most homemade masters for one-time work are manufactured.

The methods of bending pipes are not so much. Before you decide what type of tool you need, consider their varieties, advantages and disadvantages.

IMPORTANT! When working with a similar tool, great effort is attached. Therefore, it is necessary to avoid injuries.

What are the pipe benders on the principle of action

Tripping

The start of the pipe is fixed close to the fixed pattern. With the help of a pressure roller, the pipe covers the template and takes its shape.

Advantages - Such a device is simply made, it takes up little space, easily mounted on the workbench or just on the wall of the garage.

The disadvantage is the bend radius is equal to the diameter of the template. Partially can be solved by changing the central node.

Winding

Template movable, clamping roller - no.

The billet is fixed on the template with a bracket or other device, the pattern rotates and with the help of a clips - the pipe bends. During operation, the part is worse on the central pulley, hence the name.

Advantages - Again the simplicity of the design.

Disadvantages - limitations associated with the size of the template, a powerful lever and the drive bearing are required.

Arbalet

The pipe is installed on two fixed supports. Strictly in the middle in the place of bend, gives the shoe (punch) of a certain radius.

A hydraulics or helical drive is used as a power source. The workpiece begins as a row or crossbow. Hence the name.

Advantages - relative mechanization of the process, less physical effort is required. Easy shift punches makes the tool more versatile.

Disadvantages - the bend radius is limited. For large sizes, a bulky mechanism and massive shoes will be required. At the points of the application of force (both on supports and on the Puenson) there are deformations of the pipe walls. A thin-walled blank can trustly burst.

Rolling (rolling)

The pipe is installed between three rollers, the central of which can be moved to the height relative to the reference.

Popular: kitchen knife sharpening angle

Disadvantages - large design dimensions, inconvenient to work with small radii. In addition to the methods of the Gib, it is necessary to know mechanical limitations for pipes of different diameters and wall thicknesses. As an example, we give the table safe for the material of bending radii. We are talking about steel pipes, for aluminum or copper other standards. If you need to make a bending of a smaller diameter, the pipe must be warm. In industrial conditions, hot rolled products are used. In domestic - gas burner. IMPORTANT! The use of open fire on wooden devices and workbenches is unacceptable.

Homemade tube bending devices

Simple wooden pipe bending

The design refers to the trial type. Only the clamping roller is not used. For the manufacture you will need boards or thick plywood, self-tapping screw and electrolybiz. A workbench is used or a massive chipboard (OSB).

The end of the pipe is fixed by primitive emphasis. Using the muscular force of the workpiece, the required form is given. Effort should be made smoothly, giving a "relax" to the metal after each approach. In this case, damage will be minimal, and the form is smooth and accurate.

To hold the details along the guide, in the end of the template you can make a profile deepening. If there is a milling mill - select the end milling cutter, or simply treat round rashpil.
This method is suitable only for thin-walled pipes.

More durable billets will simply destroy the wooden punch. If the metal is too thick, and the pipe is short - you can increase the lever, inserting the reinforcement in the free end. With thin walls inside, it will wonder the sand, shutting the holes with wooden chops.

The lack of functionality of the adaptation is compensated by ease and cheap manufacturing.

Advanced wooden model with clamping roller

The rolling tube with the lever on which the roller is installed - it works much more efficiently. Even if it is made of wood. If there is a modern manual woodworking tool, you can easily add wooden rollers of any size.

The diameters may be the same or different, it all depends on your tasks. In the drawing, the principle of operation of the device is clearly visible, in this case - the clamping and support roller is the same.

If you are constantly working with small diameter tubes - you can make a more perfect tool with four bends radius. To do this, the square sheet of plywood is cut into the corners with the necessary size, opposite each hole drills the lever with a pressure roller. Rearming it to different angles - we get four options for bending.

Perhaps the most common model among homemade. As blanks are used old pulleys from the engine, are ordered at the factory at the familiar turner, are recruited from the washers of various diameters.

Such a device is found in almost every Saraj or the garage of the master house. With it, plumbing pipes are bent all running sizes. If necessary, the lever can be strengthened to any length.

When installing various pipeline systems, having a circular cross section. If you do not use the pipe bender for a round tube, then an attempt to bend into a certain angle the workpiece can lead either to crumpled a round-shaped section with a complete loss of the passage section, or the crack appears in the bend. Therefore, in order to bend a round tube, methods were invented and special devices were made.

All pipe bending can be divided by a method of mechanical impact on a round tube profile. It should be borne in mind that, despite the external similarity, there are differences in the approach to technology, pronounced differences in the bending technique when exposed to a round tube profile:

on cold
on hot.

So, to the most common models of pipe bending, which bend the round tube on the cold, that is, without additional heating of the fold of the fold, belong:

drip
winding
arbal
rolling or rolling.

It is the most simple design and is positioned as a manual mobile device. Structurally, it consists of a solid base, on which a fixed pattern of a certain diameter is fixed. On the central axis of the template, a frame lever with a rolling roller roller is attached.

The principle of such a mechanism is simple. To begin with, the blank is firmly fixed on a fixed template. Next, with the help of a lever and crimping roller, the pipe starts tightly run around the template so that it is completely repeated by the radius of the template bending.

The disadvantage of such devices is that the bending radius corresponds to the diameter of the fixed template. Partially this can be solved by changing the size of diameters by replacing the fixed template and the crimping roller, so you can bend pipes with a conditional diameter of 15 to 32 mm.

Factory models have been produced, which have three templates of different diameters in their design and, respectively, three trimming rollers intended for flexing gas producing main sizes.

The advantage of the hard hand-made pipe bending is its versatility in use due to the simplicity of the design, which does not occupy a lot of space and allows you to install it both to a locksmith vestica and to almost any time surface in the construction conditions. Therefore, rolling pipe bending for a round tube is most often made with their own hands than the devices of other types.

Winding type of pipe bending

According to the principle of operation, a movable template is provided only in its design. The fixation of the workpiece is carried out using a bracket fixed directly on the template itself, but instead of the crimping roller, a fixed stubborn shaft is made.

Works winding pipe bending by rotating a template, which is oppressed by the pipe, as if wateing it to the central pulley, which corresponds to the name of the device.

Such devices are made, mainly by the factory method, while in the device is provided for mechanical flexion of the central pulley electric drive through the gear motor.

The disadvantage is also a limitation that is associated with the diameter of the central pulley. And in the case of a manual drive, the use of a more powerful lever and a large bearing for a central pulley shaft will be used.

Benefits include a simple design and relatively small dimensions.

True bending arbal type

They are a base with two separated fixed roller supports, to which the pipe blank is stacked. The flexion process occurs due to the fact that exactly in the middle between the rollers on the workpiece at the place of the future folding crushes the punch with a certain size of the radius. Puinson shaped is similar to the template, only represents only a part of it, no more than half of the circle. A blank is bent like a bowl, immediately from two sides, which allows you to smalle in the smallestly to deform the cross section of the pipe in the place of bend.

To transfer efforts to Puinson use, as a rule, hydraulic drive, hence the adaptation of the arbal type is the second name -.

Although, along with hydraulics, the structures of manual pipe bending with a screw-wheel drive are released, as a rule, such devices are significantly inferior in performance and have a more cumbersome design.

The advantage of the arbal hydraulic pipe bender is, first of all, the mechanization of the flexion process, which practically does not require physical strength for its work, and the simple replacement of the punches makes the device even and universal, allowing you to bend almost any small metal rolling.

The disadvantages include limiting the bend radius. And also, for large sizes of blanks in the locations of the stop, it is possible to occur a minor curvature of the diameter of the pipe cross section, but when working with a thin-walled pipe can be significantly mounted.

Rolling or rolling tube

Present a design with three rollers, two of which are still, and one installed in the middle can be moved up-down relative to the other other. This arrangement of roller rollers in the progressive movement of the pipe allows its bend to the arc. For several rolling, you can get the required.

The disadvantages of the rolling method include low performance of manual fixtures.
The advantage is the ability to bend almost all types of profiles, including thin-walled sizes.

It is worth noting that the rolling method of bending well has proven itself on industrial universal bending machines, where mechanical rolling of the workpiece with an electric drive is used, and the number of rolling rollers is determined by the technological card.

The main difference when flexing a rectangular profile from a round tube is a large gibbon radii. With a further attempt to reduce the bend radius, a certain deformation of the straight line of the profile walls begins to occur, which significantly reduces the flow cross section and reduces the structural properties.

How to bend pipe without pipe bender

If you still have a need to bend a round tube, and there is no hand-cutting pipe, how to bend the pipe correctly - you can recommend several quite working methods. So:

It is necessary to fill the pipe with sand, while so that the sand is not soaked, temporarily standing by the ends with the rag. Having found a rounded surface so that it is possible to firmly fix one end of the pipe using the nozzle in the form of a pipe of a larger diameter, sufficient length for the lever, gradually bending our workpiece to the desired angle.
In exactly the same way, the metal pipe of a small diameter can be beatened, applying ice crumbs instead of sand or tightly stuffing with snow.
In order to bend in the hands of a metal-plastic pipe and do not break, it is necessary to scratch the pipe to shove the spring slightly smaller diameter. At the end of the flexing process, it should easily get out of the pipe.

If you know another way of bending a round pipe without a pipe bender, then share your experience in the comment block.