Properties and characteristics of the machine:
structure form for three roller symmetrical, on the roll in two roller symmetrical location of the center moves vertically, through the hydraulic cylinder in the hydraulic oil on the piston and obtain, for hydraulic transmission; the two lower rollers to rotate through the speed reducer, the output gear and the lower roller gear. Together, provide torque for coiled sheet. This machine has the advantages of compact structure, convenient operation, repair.