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For the Hydraulic relief valves within 2μm hole accuracy, only AAK 100% met the requirements

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Update time : 2022-08-03 11:19:56

At the beginning of this year, Timoteo emailed us to asked about  the production time for 600 hydraulic relief valves, and it required that the quality and parameters should be same as those of the previous samples, especially that the valve hole accuracy must be 100% within 2μm. Timoteo is from Italy and has been cooperating with AAK for more than 1 year. After communication, we learned that the price of this hydraulic relief valve that was previously tested in AAK was 20% higher than that of another hydraulic cartridge valve manufacturer, so they did not purchase the larger quantity from AAK. However, the hydraulic relief valves purchased from another manufacturer have been complained by customers one after another. These hydraulic relief valves were used in shield machine. The valve hole accuracy of some of these hydraulic relief valves is over 2μm and caused equipment failure due to leakage.

 

Per the original manufacturer, this hydraulic relief valve has a very high accuracy requirement. It is not avoidable that a little proportion of the goods does not meet the accuracy standard, they can be replaced free of charge. But after more than half a year, the high-frequency replacement makes the customer unhappy. His boss asked Timoteo to replace the hydraulic relief valve supplier immediately, and the valve hole accuracy must be 100% within 2μm. Timoteo can only contact AAK, because during the testing stage, the valve hole accuracy of AAK hydraulic relief valves were all within 2μm. Timoteo also frankly told us that he should not have determined the hydraulic relief valve supplier blindly based on price only.

 

After 30 days, AAK shipped 600 hydraulic relief valves. Until today, Timoteo emailed us that AAK hydraulic relief valves have been installed on the equipment for more than half a year, and no customer has complained. The boss is very satisfied. I told him that as long as they are used properly, there should be no leakage in another year, because the hole accuracy of AAK hydraulic relief valves is 100% within 2μm.

 

Among so many hydraulic valve manufacturers, why only AAK can achieve 100% accuracy guaranteed hydraulic relief valves? For the quality control of hydraulic relief valves, AAK has 3 advantages, and I believe most hydraulic valve factories do not have these 3 characteristics of AAK.

 

1The valve hole of AAK hydraulic relief valve is precision machined with TAMIX one-time tool walking high-speed ultra precision honing mill imported from Japan, which is thoroughly ground without trace. In mass production, the wear-resistant SPA cutter effectively ensures the stability of processing, and the accuracy of valve hole is guaranteed to be within 1-2μm, the surface roughness reaches Ra0.2-0.3.

 

2After the valve hole processing is completed, AAK inspectors use the Diatest small micropore diameter high-precision measuring instrument imported from Germany to accurately measure each hydraulic relief valve hole, and the minimum measurement accuracy range can reach 0.1μm, so as to ensure that the accuracy of each valve meets the standard.

 

3AAK has independently developed hydraulic relief valve durability test equipment, which can fully carry out fatigue test on valves according to customer specified requirements in combination with NFPA/T2.6.1 standards. Each valve must be inspected to ensure that each hydraulic relief valve is qualified before shipment.

 

AAK hydraulic relief valves, the accuracy meets the requirements 100%, High Accuracy and Stability, you can also have a small try!

 

AAK HYDRAULIC CARTRIDGE VALVES (307) 2022-08-03

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