Due to the rapid development of China’s basic engineering, BIT series profile bending machines are more widely used in steel beam bending, such as the application of Chongqing Metro, a key project in China.

Two types of beam bending machines

PBH Series section bending machine is a multifunctional machine, it can bend beam in hard-way or easy-way

High bending precision, superior performance, the best choice for bending beam, disadvantage: high price.

h beam bending machine
I beam bending machine


h beam bending machine
h beam bending machine
Hard WayEasy Way
Inside Diameter
Inside Diameter
PBH-120  120600
PBH-140  140600

4-roll H/I-Beam bending machine photo

BIT is a machine customized by China Sany Heavy Industry. It can be seen from the mold that it can process and bend beam and channel profiles.

Of course, it can also be replaced with our combined mold and pipe mold to bend various types of materials to become an ordinary profile bending machine.

Video of 4-roll section bending machine bending H-beam

Due to the rapid development of China’s basic engineering, BIT series profile bending machines are more widely used in steel beam bending, such as the application of Chongqing Metro, a key project in China.

i beam bending machine
Beam cold bending machine

The CBM cold bending machine performs cold bending deformation of various types of steel(I beam, H beam, U channel) according to a certain radius of curvature according to the requirements of construction and use, without changing the internal stress of the section steel, so that the section steel achieves the purpose of bending deformation without changing its mechanical properties and strength.

CBM series profile cold bending machine has simple structure, reliable performance and low price. It is the most economical choice for outdoor engineering bending beam.

cold bending machine
Cold bending machine
beam bending machine
Cold bending machine

It reduces labor intensity and labor costs, improves work efficiency and cold bending machining accuracy, and is one of the first-choice equipment for processing steel arches.

The hydraulic beam cold bending machine adopts a hydraulic system, which has the characteristics of stable transmission and high pressure, which can accurately locate and greatly improve the processing accuracy of tunnel I-beam and H-steel.


It is widely used in the bending of I-beam, channel steel and H-beam in highway tunnels, railway tunnels, subway tunnels, water conservancy and hydropower diversion culverts, natural gas pipelines, communication pipelines, underground passages and other projects.

Main parts

The beam bending machine consists of two sets of main motors, a reducer group, and active rollers. Passive rollers and oil pump motors, gear pumps, relief valves, solenoid steering valves and hydraulic workstations composed of working cylinders and other components.

How to bend the beams

When the I-beam cold bending machine is working, the beam to be cold-formed is pushed by the door bracket of the system and placed between the two active rollers, and the hydraulic system is activated to make the hydraulic cylinder push the dovetail groove and the cold-formed roller cold-formed steel. When the arc required by the design is reached, the hydraulic system is closed, and the mechanical transmission system is started, so that the active roller rotates and drives the section steel to move forward steadily and slowly by friction, thereby realizing continuous cold bending operation.

At the end of the cold bend, close the mechanical transmission system and start the hydraulic system at the same time to retract the hydraulic cylinder. Place the cold-formed beam on the door bracket of the system.

This cold bending operation ensures the strength of the material, improves the quality of the beam (supporting steel arch), greatly improves the work efficiency, and the operation is simple and clear.

The H beam (metal workpiece) is placed inside of an induction coil, which, when turned on, heats localized sections of the H beam to temperatures ranging between 1750° F to 1850° F. The exact sections depend on the part design and the exact temperature depends on the base material. As each section reaches the correct bending temperature, the machine slowly moves the H beam through the induction coil as a fixed radius arm mechanism applies the necessary force to bend the workpiece at the heated area. When the H beam exits the induction coil, it is immediately quenched with water to minimize thermal expansion.

This process can take up to an hour since it must occur gradually to avoid snapping or deforming the structure.

Also, read: H-BEAM & I-BEAM bending process

About beam profiles bending


Rolled steel beams (Section Bending Universal Column) are used everywhere – in structures for functionality or aesthetic appeal, in circular shell stiffening rings on vessels and for monorails or roof trusses. Steel beams can be rolled vertically (the weak-axis) or horizontally (the strong axis). When rolling steel beams, it is important to consider distortion.

h beam bending machine
Section bending machone for H-beam bending

:: Read more:Before and after bending the beam in a hard way. What needs to be checked?

Bending Profiles H-Beams
Bending Beam “Hard Way” And “Easy Way”

Rolled steel beams (Section BBending beams and channels on the hard-way require a strong bending force because the section modulus along the x-x axis is always very large. Moreover the combination of the large bending forces required by the process with the relatively thin thickness of the beam cause the deformation of the web itself.

Rolled steel beams (Section There are two primary methods used in beam bending applications, informally known as the “easy way” and the “hard way” .

BIT serise beams bending machine be ensures even the most demanding beam forming projects are completed on time and to industry-required guidelines.

When the channel steel is bent horizontally, its work difficulty is equal to H-beam bending

:: Read more:Steel Beam Tolerance After Rolling

Bent beam profiles photos

w24s profile bending machine

All PBH series section bending machines are driven by a hydraulic motor (up to 9), with powerful bending ability. Standard machine section modulus: 16CM3-600CM3. Can bend various types of materials into an arc or a circle. It can bend copper, carbon steel, stainless steel, and aluminum profiles.
Angle, channel, beam, flat bar, round & square bar, pipe, square tube.

aluminum profile bending machine

CNC aluminum profile bending machine
CNC control. Accuracy is as high as ≤0.01mm. 
Can be bent in various shapes (3-D graphics, C-shaped, U-shaped, full circle, ellipse, multiple radii combination shapes, etc.)
Suitable for bending aluminum profiles for automobiles, doors, and windows

section bender
section bender

A small section bender (section bending machine, flat bar rolling machine), with manual and semi-hydraulic drives, can bend profiles other than the beam.
Cheap price, the first choice for small factories

cold pipe rolling machine

High-performance cold pipe bending machine, CNC control, multiple programs, multiple angle settings, simpler operation, and program settings.
It is widely used and can be used in mass-produced or standardized products, such as exhaust pipes, seats, bumpers, and all steel furniture.

profile bending

Section bending methods of metal profiles and the corresponding bending capabRecommendations for bending processes and bending machines for metal profile sections.

4-roll profile bending machine
4-roll profile bending machine for bending U channel and H steel beam