... 2,Hydraulic Punch 3,Roller Feeder roll forming machine LMS ON-LINE HOLE-PUNCHING ROLL FORMING PRODUCTION LINE1. SUITABLE PROFILE ... hydraulic punch press, feeding device, roll forming machine, straightening device, hydraulic cutting off, cold water recycling device, pneumatic and electric ... is dangerous for human.3, Working Environments1) Power supply: voltage 380V±10%/ three phase four wire, frequency ...