RTP Pipe Coiling Machine

RTP Equipment

RTP Pipe Coiling Machine

The coiler is the final handling step in an RTP line. It winds finished pipe into a controlled coil without exceeding the pipe’s minimum bend radius, kinking the liner or crushing the reinforcement. Coil geometry, tension and changeover are matched to the pipe size and project logistics.

Large coiler winding finished RTP pipe
Controlled tensionKeeps the pipe tight enough for a stable coil without over-tensioning the composite.
Coil geometryInner diameter, width and layer build are set to the pipe and transport limits.
Safe cutoverControlled stop, cut and transfer sequences reduce handling damage.
Line integrationThe coiler follows haul-off speed and supports stable start-up and shutdown.

What the coiler controls

A finished RTP pipe is flexible but not a hose. The coiler must respect the minimum bend radius, avoid local point loads and keep the pipe from twisting. The control system coordinates rotation, traverse, tension and pipe support throughout the coil.

Rotating frame

The frame and supports are sized for the coil weight and diameter range.

Traverse and layering

The pipe is laid in controlled passes so the coil builds evenly without gaps or crossings.

Tension control

A dancer or load-cell system maintains the target tension as the coil diameter changes.

Cut and transfer

Optional cutting, end preparation and transfer equipment support a repeatable end-of-coil cycle.

RTP pipe line feeding the coiler

Typical coil data

Coil dimensions are project-specific. The line can be configured for different coil sizes and handling methods, but the coiler must be matched to the pipe’s stiffness, minimum bend radius and weight.

  • Coil inner diameter and width
  • Maximum coil outside diameter and weight
  • Pipe length per coil
  • Minimum bend radius and allowable ovality
  • End preparation and strapping method
  • Lifting and transport method

Avoiding handling defects

Do not exceed the bend radiusThe coiler geometry and guide layout must follow the pipe design, not just the available floor space.
Do not crush the jacketSupport rollers and contact surfaces must avoid point loads on the composite pipe.
Do not twist the pipeTraverse and tension control should prevent torsional build-up in the coil.
Do not rush changeoverA controlled stop and restart procedure protects the pipe and keeps production records clean.

Information needed for a coiler proposal

Input Details
Pipe range Outside diameter, wall thickness, weight per metre and minimum bend radius
Coil specification ID, OD, width, weight and pipe length per coil
Line speed Normal and maximum haul-off speed
Handling Lifting, pallet, strapping and packing requirements
Automation Manual or automatic cut/transfer and data recording

Coil geometry and pipe bend radius are design constraints. BENK confirms the coiler configuration and floor layout in the technical proposal.

Plan the coil before the line layout

Send the pipe range, coil dimensions and handling method. We will configure the coiler, tension control and line interface.

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