The SPR (Self-Piercing Riveting) system is an industrial equipment system that enables efficient joining through a novel cold joining technology (physical joining). Using specialized equipment, the rivet penetrates the top layer sheet and enters the bottom layer sheet, with its tail expanding outward under the action of the riveting die, interlocking with the bottom layer sheet to form a "riveted button." Based on the distinct properties of the sheets to be joined, specific rivets、riveting dies and riveting parameters are selected to ensure the riveted joint meets specified quality standards.
Maximum riveting force | Maximum riveting speed | Maximum opening |
80 KN | 300 mm/s | 250 mm |
Gun throat range | Maximum cycle time | Rivet Supply Method |
100~980 mm | 1.2 s | Magazine, direct blow, ratchet |