RH10010 - 100 Ton, Double-Acting Center Hole, Cylinder 10.12 in stroke

Application Notes & Considerations

The RH10010 is tailored for demanding push/pull or tensioning operations where a through-rod or cable must pass through the piston—use cases include anchor bolt stressing, cable applications, stud forcing, or structural jacking with load reversal. Because it's double-acting, it offers controlled motion in both extension and retraction without relying on springs. The presence of a safety relief valve in the retract circuit is critical in preventing overpressure damage if retract fluid flow is restricted. As with any high-tonnage cylinder, alignment of load along the axis is essential to avoid side loads that accelerate wear. Maintenance or disassembly should be performed only by qualified technicians, especially given the presence of internal pressure components and the built-in relief valve.

• The RH10010 includes a built-in relief valve in its retract circuit to prevent excessive pressure if the retract port becomes blocked or restricted. This is an overpressure safety feature and must not be tampered with. If it begins leaking oil, the cylinder should be removed from service and returned to an authorized repair center.
• The cylinder uses Loctite 242 on the final 2–3 threads of the standpipe (for units built after Jan 1999) instead of a set screw, to lock the standpipe into the body.
• The insert at the piston can be changed between a tapped (threaded) version or a plain through-hole, which gives flexibility for different applications (e.g. cable vs rod pass-through).
• The manufacturer spec notes that, under push mode at full 10,000 psi, the RH10010 can deliver 106.9 tons, and in pull (retract) mode 47.1 tons, based on its effective areas.
• Weight is 240 lb for the cylinder body.