A unit consists of a number of modular hydraulic cylinder sub-assemblies. Each module consists of powerful double-acting, double ended hydraulic push-pull cylinders with a clamp assembly mounted on the bottom of the lower piston rod. An adjustable guidance system is surrounding the upper piston rod.The modules are bolted to a support frame. Each module can push with 200 tonnes.
The unit can be configured with 2, 3 or 4 sub-assemblies.
The light blue plates in the sketch shown are support frames, the light grey cylinders the modular hydraulic cylinder assemblies (four shown) and the brown areas packing fabrications to accurately position modules to suit pile centres.
The Piling Rig
Should be able to impart between 20 and 50 tonnes of down-crowd or extraction force to the Push-Pull Unit over the entire pile installation length. Besides, it should be capable of handling the combined weight of the Push-Pull unit and relevant sheet piles.