The holes and holes function of the CZ purline machines or the CZ interchange Roll Forming Machine
As we know, CZ purline is widely used in the steel structure building. For example to used as the Purline instead of wooden ones in old days. And the supporting steel frame to support the steel house and so on. The standard size of C purline is 80-300mm, the standard of the Z Purline is from 100-300 mm. There are also some reinforcing ribs and holes on the CZ purline. Today we talk about the holes on the CZ purlines and the designing of the punching system on the CZ Purline Roll Forming Machine.
There are 3 kinds of holes on the CZ purline, with each kind hole`s function.
1 The base two parallel oval hoes, the size is 14 mm*25mm. This oval hoes are used for connecting to the roof girder. Also the holes sizes can be customized according to customers` requirements.
2 The base round holes, this hole is used for connecting to the steel Rebar to make the purline steady.
3 The holes on the flange side, this hole is used to connect to the ceiling material and other usages.

As for the CZ purline roll forming machine, the holes punching system is normally the hydraulic punching system in the machine line, it no need the electric separate punching machines. Because the holes on the CZ purline is not dense holes, and the hydraulic punching system in the machine line is OK . About the punching method, there are also front punching holes method and post punching holes designing, both these two punching designing is OK.
Door Frame Roll Forming Machine, this machine is specially designed for making door frame for various types doors like shutter door mainly. This type machine working speed could reach 25m/min. And for the material thickness is from 0.5-2.5mm.After roll forming by our production line, we could make very smooth and beautiful door frame without any scratch on surface. This metal door frame production line is composed by the following elements: De-coiler, feed & leveling device, punching machine with holes punching moulds, main roll forming machine, cutter, run-out table, etc.This cold roll forming line adopts accumulator and PLC controller to generate a fast punching and shearing speed.
Door Frame Roll Forming Machine
Door Frame Roll Forming Machine, Aluminum Door Frame Roll Forming Machine, Metal Door Frame Roll Forming Machine
Cangzhou Zhongtuo Roll Forming Machinery Co. Ltd , http://www.rollsformingmachines.com