Yes. Normally no effect can be detected on the section produced. In fact, we frequently use the rollformer as a ‘roll feed’, stopping to incorporate punching, notching and shearing or cropping within the one machine.

The forming of a profile shape by passing a flat strip or coil through a number of pairs of rollers, each pair progressively forming the bend until the desired cross section is achieved.

Normally 2 x horizontal roll pitch. This can be reduced to 1 x roll pitch + 3mm by incorporating inter station guides. If the profile is sheared on exit from the rollformer, no minimum length exists.

Typically, gauges between 0.25mm and 3.00mm present no problems although we have formed down to 0.08mm with great success.

Any suitable ductile material that will take a 180º bend without splitting: -

 

Mild steel, galvanised mild steel, zintec, stainless steel, aluminium, copper, brass, pre-paint steel and plastic coated steel have all been rollformed successfully.

The speed is normally restricted by external factors of handling and related processes to between 15 and 30 metres per minute, but speeds of 100+ metres per minute are possible.

It is a fast, cost-effective method of producing any complexity of profile of a limitless length in a single pass, thus saving on man-hours.

The section is governed by the accurately machined profile of hardened steel rollers and the setting of hardened infeed guides. These do not vary from one product to the next and hence give consistent sections for a given material thickness. Tolerances of +- 0.2mm are common.