welding manipulator is composed by column, boom, guider block, trolley, elevator, extend, column rotator, trolley driver, etc. LH3550 manipulator ( ... There is operation platform under the column, with welding power and control cabinet on. The platform rotate ... :8-25m. LH3550 manipulator USD22000/set FOB SHANGHAI (Chinese welding power)USD34000/set FOB SHANGHAI (Lincoln DC-1000) welding manipulator