When a pull-in runs long or heavy, the Prime Pipe Pusher adds force from the other end — gripping the pipe around its full circumference so it moves under enormous load without deformation, and without a scratch to the coating.
On long or heavy crossings, the pull force the rig needs can exceed what the pipe itself can take — it would fail before it reached the far side. The Pipe Pusher shares the load: it pushes from the far end while the rig pulls, so no single section of pipe ever sees too much.
The breakthrough is how the pipe is held. Clamp jaws are matched to each diameter, and chains wrap the pipe around its full circumference — spreading the load so the pressure on any square millimetre stays remarkably low. That's how it moves pipe under huge force with no deformation and no damage to the coating.
The feed works just like our rigs — feed motors driving a rack-and-pinion system, modular from 120 t to 480 t. Add chains for grip, add motors for force. It runs in both directions, with a variable feed length, and mounts on a rig mast or a steel frame with only minimal foundation work.
On a record-breaking crossing, a long, large-diameter pipeline had to go in within a single pull. Pull force alone would have torn it apart long before it surfaced. So a Prime Pipe Pusher pushed from the far end while the rig pulled — the load shared end to end, the full length in cleanly, in one go.
Watch the storyLong and heavy HDD pull-ins, where pull force alone reaches the pipe's limit.
Marine and shore approaches — barge-mounted, pushing from the water side.
Tunnel boring machine assist, adding thrust where it's needed.
Works either way — as a pusher or as a puller.
Tell us the length, the diameter and the pipe — we'll tell you how to get it across.