Content :

The geometric tolerance of the cavity hole of the cartridge valve combination hole produced by AAK is controlled within 0.02mm, which is only half of the geometric tolerance of 0.03-0.05mm in the same industry. At the same time, the transition angles between the small holes of the cartridge valve are replaced by small rounded corners to completely avoid the phenomenon of "horn hole".

The "horn hole" appears after the cartridge valve is used for a period of time, which is a common problem of the cartridge valve. The root cause is the processing bottleneck of cartridge valve combination hole. The cartridge valve with horn hole will leak during production. What is more troublesome is that the pollutants outside the cartridge valve are easy to enter the valve spool with the hydraulic oil, resulting in the strike of the whole hydraulic system.

Some time ago, Ryan, an American Hydraulic customer, placed an order for a threaded cartridge valve to a hydraulic valve factory in Guangdong. He received the cartridge valve samples for 3 times, but failed testing for 3 times, either leakage was found or pollutants outside the cartridge valve were easy to enter the valve spool. Ryan checked with the hydraulic valve factory for many times, but problems could not be solved. In desperation, he can only find new hydraulic valve manufacturers.

Ryan found AAK Hydraulic Valve on Google platform. After a week's understanding, maybe Ryan thinks that AAK can help him solve the problems faced by the cartridge valve this time. On the same day, he sent us the cartridge valve samples from the previous hydraulic valve factory, as well as the technical drawings of his cartridge valve. After receiving and testing the samples, we found that the coaxiality of the cavity hole diameter of the combined holes of these threaded cartridge valves is between 0.03-0.05mm. At the same time, there is a knife connection trace at the transition R angle, resulting in the phenomenon of "horn hole".