Operation

The Lock-on-Retract (LOR) Self-Locking Cylinder employs a tri-sectional ring (three segments) and an annular groove to maintain a metal-on-metal mechanical lock regardless of system pressure. As the cylinder reaches end-of-stroke (retract), the rod engages a keeper slide allowing the tri-sectional ring ("D" at right), to be forced into the annular groove ("E") by the locking slide ("F"). The locking slide is held in place by the bias springs and will maintain lock-up until pressure is applied to the extend port. The extend port supplies pressure to move the locking slide off the three locking segments and to extend the rod at the same time.