A hydraulic gripper and moving jack for moving heavy structures, such as an oil derrick, along a flanged member. The gripper engages the flanged member with a frictional grip.
Piston Gripper Jacks are used where size and weight restrictions dictate a more compact design, or for very large loads. The Piston Gripper uses an array of separate, short-stroke, hydraulic pistons to clamp the jacking (skid) beam flanges. These grippers develop maximum clamping force with minimum size. Piston Gripper Jacks are smooth-acting, rugged and dependable […]
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Nov
Nov
Hose Gripper Jacks used a bladder that, when pressurized, force steel clamps against the upper and lower surfaces of the edges of the skid beam flange, locking the gripper into place on the beam. The jacking cylinder was then pressurized to push or pull the load. Hose Gripper Jacks were particularly suitable where exceptionally wide […]
