COLD ROLL FORMING
Cold roll forming machine
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Cold roll forming machine

Cold roll forming machine is a mechanical equipment used to manufacture long metal materials, also known as Cold roll forming production line,cold bending production line. It uses sequentially configured multi-pass forming rollers to continuously bend coils, strips and other metal plates laterally to make specific cross-section profiles. Machinery with this plastic processing technology is widely used in construction, manufacturing, automobile manufacturing and other fields.

“Cold bending forming machine is an important metal processing equipment that can meet the needs of various engineering construction and device production.”

Cold roll forming production line

Our cold roll forming machine and cold bending machine and production line is widely used in construction, manufacturing, automobile manufacturing and other fields.

Cold roll forming machine Question?

The cold roll forming machine is the equipment for continuously processing metal sheets of a coil, a strip, by a multi-pass forming roller which is a plastic processing process to form a specific section profile.

Cold roll forming consists of gradually and continuously forming a steel profile. The method consists initially unrolling the strip of a steel coil, whose width corresponds to the developed of the finished profile.

Roll form machines are designed to make sheet metal into straight formed shapes. The roll forming process takes a continuous flat sheet of metal and power feeds it through a successive series of Hardened Steel Rollers, which station by station shape the metal into a finished shape as it passes through them.

Cold rolling produces steel with closer dimensional tolerances and a wider range of surface finishes than hot rolling. It is also up to 20% stronger than hot rolled through the use of strength hardening.

The main difference between hot and cold rolled steel is in how they are processed. Hot rolled steel is steel that has been rolled at high temperatures, while cold rolled steel is essentially hot rolled steel that is further processed in cold reduction materials. Here, the material is cooled followed by annealing and/or tempers rolling. Steels of different grades and specifications can be either hot or cold rolled. Understanding the differences between hot and cold rolled steel can help you determine the best type for your needs.

Cold rolling is a process by which metal is passed through rollers at temperatures below its recrystallization temperatures. The metal is compressed and squeezed, increasing the yield strength and hardness of the metal.

In terms of physical characteristics, cold rolled steels are typically harder and stronger than standard hot rolled steels. As the metal is shaped at the lower temperatures, the steel's hardness, resistance against tension breaking, and resistance against deformation are all increased due to work hardening.

Cold bending is another way to shape metal. It does away with the dangers of gas-produced heat, and it greatly reduces the potential for electrocution. It works with the metal at room temperature and often harnesses the power of hydraulics and leverage to shape metal.
Cold bending is also called roll bending, due to the equipment and process used to shape the metal. Most cold bending machines use three rollers and a mechanical jig to produce long and smooth curves and bends in metal products. Two rollers stay in place while the third roller manipulates the metal with a jig determining the final shape.

Cold bending methods often rely on sheer physical force to help bring the metal profile(e.g. pipe beams) to its final shape while hot bending methods use careful heating to reduce the force required.
There are pros and cons to both the hot and cold bending processes, depending on the type of material you need to be bent and the angle of the bend required will determine the degree of bending possible and the final shape of the metal profile.
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