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Our SPR mechanical joining process is used to join two or more layers of material without the need for a predrilled hole.

This robust mechanical joining of sheet materials is achieved by inserting a rivet and cold-forming an interlock with cycle times similar to spot welding. Just clamp the sheets and press our precision self-piercing rivet through the top layers of material to upset the rivet in the bottom layer. That’s all you need to do to get a strong interlock between the layers being assembled.

Designed with a servo-electric drive to ensure the highest level of process control and repeatability, these tools can be robot-carried or pedestal-mounted. Plus, our SPR systems can be configured to control up to three tools with a single control unit.

The SPR product family is offered in a wide variety of ready-made rivet geometries, or as a custom solution if you need a special configuration developed.

Fast Facts:

  • 100% servo-electric drive ensures highest level of process control and repeatability.
  • Large selection of C-frame sizes and configurations to meet application requirements.
  • Tools can be robot-carried or pedestal-mounted.
  • Cycle times are similar to spot welding.
  • SPR systems can be configured to control up to three tools with a single control unit.

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The availability of the products described on this site, and the product descriptions, may vary from country to country. Consult your STANLEY Engineered Fastening Account Executive or your local distributor for specific product information.