RH Series Center Hole Single-Acting Cylinder, 30 Ton, Inch Rod, Inch Stroke

For pull and tension work where you need pass-through access, the RH306 is a center hole single-acting cylinder with a 1.281 inch hole. It is commonly used for tensioning cables, anchor bolts, and forcing screws, and it is rated at 30 tons at 10,000 PSI.

The center hole diameter on this SPX RH306 cylinder is 1.281 inches.

The hole diameter on this cylinder is 1.281 inches, which is sized to allow cables, anchor bolts, or forcing screws to pass straight through the piston. That center hole design is really the whole point of this series. Rather than applying force to the end of a fastener or rod, you thread or feed it through the cylinder and pull or tension from the other side. It works well for bolt tensioning setups where you need the hydraulic force applied along the axis of the fastener itself.