... used to weld, burnish, assemble the cylinder-vessel , its series includes self aligning rotators, conventional rotators , trolley rotators, tilting ... welding rotator according to the customer's requirement .HGK series Dual-driver Adjustable frequency welding rotorspecificationmodelHGK5AHGK10AHGK20AHGK40AHGK60AHGK80AHGK100AHGK160AHGK250AHGK400Aloading ( T )T51020406080100160250400distance of the ...