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Pneumatic rivet nut gun is an industrial-grade pneumatic tool that uses compressed air as the power source and is specially designed for efficient installation of rivet nuts. Its working principle is as follows: when the trigger is pulled, the internal pneumatic piston mechanism of the gun generates strong pulling force, which acts on the mandrel of the rivet nut and causes plastic deformation of the rivet nut body (usually tail expansion or flanging). In this way, the rivet nut is firmly riveted to the hole wall of the prefabricated hole to form a reliable threaded hole.

Its main components include pneumatic motors or cylinders, pull rods or mandrel chucks, gun heads or nozzles, triggers, silencing covers or silencers, air connectors, and regulating valves equipped on some models. Gun heads are usually available in different sizes to match rivet nuts of various specifications such as M3, M4, M5, M6, M8 and M10.M12

This tool features extremely fast installation speed, which is much higher than that of manual tools, and it is labor-saving to operate, only needing to align the position and pull the trigger. Stable air pressure ensures consistent installation quality and clamping force of each rivet nut. It is suitable for high-strength and mass production operations. With a relatively sturdy structure, it can serve for a long service life with proper maintenance.
It is widely used in the manufacturing industry, maintenance field and construction industry. In the manufacturing industry, its applications cover automobile manufacturing, aerospace, elevators, sheet metal processing, chassis and cabinet production, electronic equipment, home appliance manufacturing, bicycle assembly, furniture and mold casting, etc.

In the maintenance field, it is suitable for the maintenance of industrial equipment, ships and other facilities. In the construction industry, it can be applied to steel structure connection, curtain wall installation and other scenarios. In addition, this tool is especially suitable for forming non-structural load-bearing bolt connections on thin metal sheets, plastics, composite materials and other materials.

For instance, it can be used for the connection of interior parts of railway passenger cars, highway coaches and ships to replace traditional weld nuts. It is applicable to plates and pipes with a thickness ranging from 0.5mm to 6mm, and is also widely used on aluminum alloy substrates or steel plates with a thickness of 1mm to 2.5mm.