This equipment is an automatic rust proof dryer, which adopts high-pressure hot air circulation drying+atomization spray process. The whole machine adopts a multi arm mechanical arm transmission mechanism and PLC+touch screen control. The equipment has 4 workstations: loading workstation, high-pressure hot air drying workstation, atomization spray rust prevention workstation, and unloading workstation. The device also includes a circulating filtering device, etc. The machine has a reasonable structural design and process arrangement, high degree of automation, and high oiling accuracy, effectively solving the oiling problem of such workpieces.