Roll Bending Machine

Roll bending machine has also been called rounder and roller machine, which is universal forming equipment for rolling metal plate into the cylinder, cone, curved and other shapes.

According to the principle of the three-point forming circle, the relative position change and rotational motion of the working roll make the metal sheet produce continuous plastic deformation to obtain the predetermined shape of the workpiece.

It is widely used in boiler, shipbuilding, petroleum, chemical, metal structure and machinery manufacturing industries.

A roll bender is a mechanical jig having three rollers used to bend a metal bar into a circular arc. The rollers freely rotate about three parallel axes, which are arranged with uniform horizontal spacing. Two outer rollers, usually immobile, cradle the bottom of the material while the inner roller, whose position is adjustable, presses on the topside of the material.

A schematic showing a typical three roller arrangement

Roll bending may be done to both sheet metal and bars of metal. If a bar is used, it is assumed to have a uniform cross-section, but not necessarily rectangular, as long as there are no overhanging contours, i.e. positive draft. Such bars are often formed by extrusion. The material to be shaped is suspended between the rollers. The end rollers support the bottom side of the bar and have a matching contour (inverse shape) to it in order to maintain the cross-sectional shape. Likewise, the middle roller is forced against the topside of the bar and has a matching contour to it

3 Roll Bending Machine (Working Principle and Rolling Process)

With the rapid development of manufacturing, coal-fired power, hydropower, nuclear power and wind power encouraged by the national clean energy policy, also closely followed, pipeline and column tower parts processing needs of large complete sets of plate rolling machine.

Offshore oil and gas, petrochemical, coal chemical industry, heavy duty high-pressure vessel product has become increasingly popular, thousand tons of hydrogenation reactor, two thousand tons of coal liquefaction reactor, 10000m³ natural gas spherical tank are widely applied, which make heavy duty plate rolls specialized for rolling thick plate and high strength plate become key equipment.
Roll Bending Machines are different Types: 
1. Heavy Duty Roll Bending Machine
2. Light Duty Roll Bending Machine

• Delivery Time: 45-60 days
• Packaging Details: Packed with good packing Aids.