Rivet-less Clinching Machine For Hvac Duct Joint

This machine forms a mechanical interlock between overlapping sheet metal layers without rivets, screws, or adhesives. The result is a clean, flush joint with no protruding hardware — ideal for sealed HVAC duct connections where airtightness matters.

Pneumatic actuation delivers uniform force on every cycle, eliminating the variability inherent in manual riveting. Each clinch joint meets the same strength and dimensional standard, reducing rework and quality inspection time on the production floor.

At 1 second per joint and just 0.02 kW electrical draw, the machine maximizes throughput while minimizing energy and consumable expenses. No rivet inventory to manage, no drill bits to replace, no secondary hole-punching step required.

Output force is adjustable from 0.6 to 5 tons, allowing operators to match clinching pressure to specific material thicknesses and joint configurations. The 100 mm full stroke accommodates a range of duct flange profiles and panel overlaps.

The powder-coated steel frame weighs 500 kg, providing the rigidity needed to absorb repeated pneumatic cycling without vibration drift. Adjustable leveling feet ensure stable operation on uneven factory floors, and the integrated control panel keeps all operating parameters within arm’s reach.