Features for column and boom/ welding manipulator 1. The column and boom are manufactured with cold-formed welded type structure. After the annealing process and finish machining, they possess fine rigidity and strength. 2. To ensure safety, the boom lifting device uses a ratchet-and-pawl structure and is equipped with a fall protection device. 3. Frequency control is applied for the adjustment of retracing speed, greatly improving the reliability and stability of the fixed welding manipulator. 4. The front end of the boom is manufactured with a cross adjustment structure which can be adjusted through the manual control box.
