The hydraulic cold rivet machine, also known as the rivet ring machine or ring slot pull riveting machine, is a heavy-duty fastening system designed for truck chassis, automobile girders, and flange riveting. With a powerful 400 kN riveting force and a fast cycle rate of 22–25 rivets per minute, it ensures secure and efficient fastening in automotive and mechanical industries. Equipped with a large oil tank and stable hydraulic system, it is widely applied in construction machinery, mining equipment, railway vehicles, boilers, cranes, and bridge structures.