We are manufacturer and stockiest of Overload Protector Pump for Mechanical Presses like SANDSUN,PASCAL,OMSON and also undertake the repairing of pump :- • Overload protector is equipped in press machine to check the hydraulic pressure of cylinder inside the slider. • If happened overload, the hydraulic pressure of cylinder will be released immediately within 3/1000 seconds. • When happen overload, in order to protect the press and die, the press will stop working immediately after receiving the signal from limit switch. • After happen overload, the air will drive hydraulic pump to supplement normal working pressure immediately and the press can work normally. • It has pressure control valve inside of overload protector. Which can adjust hydraulic pressure automatically and eliminate the impact of rising pressure (which cause by oil temperature rise) in pressing process?