AAK hydraulic cartridge directional control valve with 0.8μm hole accuracy, has made more than 20 ma
Last week, Beardsley, a British customer, sent us an order for 600 hydraulic cartridge directional control valves. This is the 3rd time that he reordered this valve. AAK hydraulic cartridge directional control valve, with the valve hole accuracy with 0.8μm and opening and closing within 1s, helped their equipment sell well. Beardsley contacted more than 20 hydraulic valve manufacturers before and after, but only AAK calmed his impatient heart.
At the beginning of last year, they developed a four column hydraulic press. The main selling point is accurate positioning and stable control. Therefore, they have strict requirements on the accuracy and opening and closing of the hydraulic cartridge directional control valve. Beardsley firstly contacted several old hydraulic valve suppliers. After learning the parameters, they all gave up. More than 20 manufacturers of hydraulic cartridge directional control valves have been communicated online and offline, and only 2 are willing to sample. After 45 days, the valve hole accuracy of the hydraulic cartridge directional control valve samples exceeds 1μm. 2 months passed, but the manufacturer of the hydraulic cartridge directional control valve was still not approved yet. Beardsley was worried.
Beardsley found AAK on Google and left a message on our website: for the hydraulic cartridge directional control valve with valve hole precision of 0.8μm, how confident are you of success? After communication, it was learned that the manufacturer of the hydraulic cartridge directional control valve had not been approved after two rounds. According to the drawing of hydraulic cartridge directional control valve provided by Beardsley, the valve hole accuracy is 0.8μm, and the opening and closing characteristics are within 1 second, which is really a challenge. I dare not say 100% sure, but there is still a 90% probability. Beardsley asked AAK to try the order first and was willing to pay the development cost. After 40 days, AAK sent the samples of hydraulic cartridge directional control valve. 3 weeks later, Beardsley told us that after installing AAK hydraulic cartridge direction control valves, the test run of the four column hydraulic machine was smooth, the positioning of the equipment was accurate and the control was stable. His impatient heart finally calmed down.
For the hydraulic cartridge directional control valve with valve hole accuracy 0.8μm, the opening and closing within 1 second, AAK focused on 3 points, there is hardly a third one in Ningbo.
On the equipment, the German Gildemeister ultra high precision machine tool is used for processing to ensure the accuracy of 0.5-0.8μm. For most hydraulic valve manufacturers, the accuracy can only reach 1-3μm at most. AAK machining accuracy is more than 3 times of theirs.
In terms of development, the valve hole accuracy can be customized, while more than 95% of domestic hydraulic valve manufacturers just make the common size of the industry. Not only is it difficult to choose the tool, but also the customized processing challenges the engineers.
In terms of testing, we used the German Diatest high-precision small pore diameter measuring instrument to test each valve hole, while mosthydraulic valve manufacturers conducted spot checks and did not have a targeted measuring instrument.
AAK hydraulic cartridge directional control valve, valve hole accuracy within 0.8μm. You can also try a small order.
AAK HYDRAULIC CARTRIDGE VALVES (365) 2022-09-30
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