Welded by special steel, with destressing annealing treatment, the machine can avoid the frame deformation and main shaft concentricity error caused by artificial eliminate internal force insufficiency, thus protecting the main shaft and main bearing. It is applicable to all kinds of hard and soft conductor line (bare copper wire, enameled wire, tin lines, copper clad steel, copper clad aluminum) and computer wiring, cables, electronic wire, telephone lines, network wire, PVC wire, etc.