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Spin weld plugs for rotational molded parts

Spin Welding

Spin Welding

Spin welding is the process of joining fittings to molded parts by rotational friction. A high RPM rotating part is pressed against a stationary part, causing heat that melts the two parts together.

This process produces high quality permanent joints and hermetic seals. We offer a wide range of plastic Spin Weld attachments for post mold assembly.

Spin Welding Tanks

Spin Welds for Sale

The Spin Welds below are available for sale directly from The Plastic Professionals

1" Black or White or 2" Black or White

Note: Not all Spin Welds pictured above are sold directly by The Plastic Professionals.

Spin Weld Plugs for Rotational Molding


  • Back flow Preventors
  • Pressure Relief Valves
  • Access Covers
  • Petcocks
  • Bulkhead Fittings
  • Sizes up to 4-inch FPT