Coil line LMS-II is mainly for TDF flange blanking, meanwhile, it can be used for normal sheet blanking. Matched with Pittsburgh lock former/ TDF folding machine and Angle joints, this duct line can produce very good TDF ducts.
Line IV consists of a metal feeding frame, leveler and grooving roll. Hydraulic notch and punch square machine, hydraulic shear, movable Pittsburgh lock machine, duplex transverse flange manufacturing machine, and CNC system.