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This is a high-precision CNC welding positioner turntable. The machine uses a touch screen as a human-machine interface, which is convenient for parameter setting. It can pre-store 10 welding programs and realize multi-zone continuous welding. It is equipped with a welding gun lowering/uppering time setting function. This welding positioner turntable can also realize the automatic advance and retreat function of the welding gun. Users can complete the whole set of functions of lowering the gun-arc starting-rotating welding-arc ending-gun lifting without operating the welding gun lifting device separately.