Hollow rotary hydraulic cylinders and solid rotary hydraulic cylinders are hydraulic actuators used on CNC lathes and automatic lathes to drive hydraulic chucks for clamping and releasing workpieces. Mounted at the rear of the machine spindle, they convert hydraulic pressure into thrust and pull force via a drawbar connected to the chuck, operating at high rotational speeds synchronized with the spindle.
Hollow Rotary Hydraulic Cylinder: Features a central through-hole that allows bar stock or tubular material to pass directly through the spindle for continuous feeding. This design is compatible with automatic bar feeders, enabling automated long-bar machining and is ideal for high-volume production requiring through-spindle material passage.
Solid Rotary Hydraulic Cylinder: Lacks a central through-hole, offering a more compact structure. It is suited for clamping individual blanks or short workpieces where through-spindle feeding is not required.
