Jacket / Leg Cutting

Internal Pile Cutter (IPC)

The Internal Pile Cutter (IPC) is a robust and reliable manipulator proven in the field.

The IPC consists of a fixed cylindrical upper body, a rotating lower nozzle assembly and two sets of hydraulically driven centralising arms. The cutting head is extended by a pre-charged accumulator, allowing it to ride over seam-welds or non-conformities without damaging the manipulator assembly.

The IPC is deployed by vessel crane or independent winch system into the open top of the pile. The centralising arms and nozzle assembly are retracted, protecting them and allowing the IPC to slide down the internals of the pile. Once in position, the centralising arms and nozzle assembly are extended.

A complete cleaning/test pass is then carried out using HP water. This verifies that the manipulator is fully functional and that the nozzle is in contact with the pile wall rather than mud or scale deposits.

Once this pass is completed, abrasive is introduced to the HP water and a full cutting pass is completed, including a 10º overcut to ensure complete severance. The cutting head is rotated using hydraulics, with the process monitored by a radial encoder that provides accurate real-time readings of the nozzle position.

• Covers internal diameters from 5-5/8" to 120"
• Radial encoder gives real-time progress readout
• Robust, reliable manipulator