New Enerpac self-locking cube jack

The SCJ-50 Cube Jack uses a base lifting frame and self-aligning, lightweight steel cribbing blocks to provide high-capacity and stabilised lifting. 

Peter Crisci, product line director, Enerpac Heavy Lifting Technology, said: “The incremental system mechanically locks the load as each cribbing block is manually added or removed, instead of being held by hydraulic pressure. Once the mechanical lock engages, the lift cylinder retracts, and another cribbing block can be added or removed. This safer, simplified operation sequence can be accomplished with 50% fewer cycles than climbing jacks, yielding a substantial increase in productivity as well.”

The SCJ-50 Cube Jack is based on an operating principle similar to Enerpac’s 125-750t Jack-Up Systems, but in a smaller footprint and without the need for electrical controls. Up to eleven 16kg steel cribbing blocks can be safely and easily stacked onto the compact Cube Jack base frame yielding a maximum height of 2m. “The base frame footprint measures just 502mm x 430mm, making it ideal for portability and restricted operating space. A low 494mm minimum initial jacking height increases flexibility and reduces operational startup time,” said Enerpac.

 The SCJ-50 Cube Jack operates with standard 700 bar hydraulic pressure and is compatible with standard Enerpac pumps, such as the Split-Flow Pump that offers the ability to synchronously operate multiple Cube Jacks.

Crisci said it can be used for numerous applications, such as equipment maintenance, vehicle unloading or jacking a transformer.