Turning Rolling Bed

The rolling bed includes the self-alignment, the adjustable, the vehicle, the tilting
and the anti-drift types. The rolling bed is used to weld, polish and assemble
the cylinder-shell, and to line the shells with rubber. The self-alignment rolling
bed can be aligned by itself according to the size of the tank, the adjustable
rolling bed can be adjusted using screw arbor shifts and conventional power 
grading. They can be controlled with AC frequency converter, and the linear 
velocity is displayed by the digital.