1.Accordingtothe boom end weight loading、the welding manipulator has many types：light duty type，medium duty，heavyduty，and super heavy duty. 2.Straclare：slalionary slalionary and revolve. movlng and revolve. 3. Cross-sectlon of boom and coIamn is calcaIaled scientificallY drooping of boom aIong horizontal traveI is 2mm/m. 4.Boom Iifting device has anti failing device of ratchet stracture safe and reIiabIe. 5.Boom end has cross-slides which can be controlled thre manuai Pendant. 6.ControI roIIer has eccentric shaft which can decrease cIearance between rolIer and rail. 7.Column revolve unil has molor-driven and manual drive. 8.ControI unit includes control board and pendant intedace with Positioner and turning roIIs aIso prepared.