Welding lathes for 500 to 4000 mm length and maximum turning diameter 900 mm. Steel frame and tracks. Pneumatically operated tail stock. Table driven by AC motor, with inverter (I) and gearbox. Electric system complying with CEI EN-60204-1. Machines are supplied complete with electric control panel, power triple-phase 400 V, gearbox, all the controls for both manual or automatic working are on the panel. Machines are also complete with start circuit of welding machine, limit switch 360°, adjustable overwelding.