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Half Pipe Forming, Limpet Coil Forming, and Bending Machine

We’ve covered everything you need to know about the PBH section bending machine for Half Pipe and Limpet Coil Forming and Roll Bending. You should also check out our Section Bending Machine page.

Limpet Coil Machine

PBH Section Bending Machine offers unparalleled capabilities for half pipe/limpet coil forming and bending, providing precision engineering solutions for chemical plants, reactors, heat exchangers, pressure vessels, distillation columns diverse industrial needs.

Efficient Half Pipe and Limpet Coil Forming and Roll Bending

Limpet Coil Machine
Limpet Coil Machine

Equipped with specialized features, the PBH Section Bending Machine/Profile Bending Machine efficiently forms half pipes, also known as limpet coils, to exact specifications. Whether for chemical reactors, heat exchangers, or pressure vessels, this machine ensures precise shaping and bending, facilitating seamless integration into industrial processes.

Key Features and Benefits

  • Advanced technology for half pipe and limpet coil forming and bending
  • Precision shaping and bending for seamless production
  • Versatile capabilities to meet diverse industrial needs
  • Streamlined production process for enhanced efficiency
  • Robust construction for long-lasting performance
  • Customizable options to suit individual requirements
Half Pipe
Half Pipe

Applications Across Industries

The Section Bending Machine finds applications across various industries, including:

  • Chemical processing
  • Petrochemical
  • Oil and gas
  • Pharmaceutical
  • Food and beverage
  • Power generation
  • Conclusion

Limpet Coil/Half Pipe

Limpet Coil Bending
Limpet Coil

Limpet coil, also known as half-pipe, is pivotal in chemical and process industries for regulating reactant temperatures and controlling chemical reactions. Manufactured by splitting and forming a pipe into coil sections, it’s welded around the exterior of pressure vessels. Our stainless steel limpet coils adhere to relevant vessel codes and undergo rigorous testing.

Enhanced Efficiency with Limpet Coil Reactors

Widely used for its unique structure, limpet coil reactors feature coils welded around the tank bottom and walls. Compared to simple jacket structures, they facilitate faster fluid flow and withstand higher pressures without increasing plate thickness, ensuring cost-effectiveness.

Tailored Solutions for Diverse Applications

Ideal for high-pressure heat transfer, limpet coils come in various configurations, from fully-welded assemblies to loose coils, adaptable to different tank fabrication processes. Notably, our layout technicians can tailor drawings to optimize heat transfer surface area.

Key Features and Specifications

Limpet Coil Bending
Limpet Coil
  • Effective for large flow volumes
  • Suitable for cyclic heat transfer conditions
  • Configurable for tank heads, shells, and cones
  • Low pressure drop
  • Highest heat transfer surface pressure rating among heat transfer types


  • Pipe Diameters Available: 2″, 3″, and 4″
  • Material Types Available: 304 and 316 Stainless Steel
  • Thicknesses Available: Schedule 10 and Schedule 40 for heads; 10 gauge slit coil (0.135″) for shells

Streamlined Production Process

The PBH section bending machine streamlines the process of forming, bending, and welding stainless steel half-pipe profiles directly onto tank bodies. The initial forming line shapes the steel profile into a half-pipe, adjusting size and shape as needed, while simultaneously bending it to match the tank diameter.


With its precision engineering and versatile functionality, the PBH Section Bending Machine emerges as the go-to solution for half pipe and limpet coil forming and bending.