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Benchmarking SUN's hydraulic Cartridge relief valve, AAK helped Cleveland save cost for 30%

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Update time : 2022-10-20 11:22:24

Cleveland is from a hydraulic equipment company in Mexico. He has purchased hydraulic valves in Ningbo for 3 years. We have communications for two times. He is confident, but the hydraulic cartridge relief valves he purchased last time stumped him. At the end of last year, their customer customized a hydraulic paper cutter, which requires the use of a hydraulic cartridge relief valve. The engineer asked Cleveland to purchase SUN hydraulic cartridge relief valve standard parts, and the equipment commissioning was smooth. The customer was satisfied and placed the first batch of orders. Cleveland placed the order with a hydraulic cartridge valve manufacturer in Ningbo. 6 months after the equipment was sold, the customer complained that the stability of the equipment was not as good as the prototype. After checking, it was found that the hydraulic cartridge relief valve was leaking, and the standard deviation of valve hole accuracy was only 70% of SUN's. Cleveland contacted SUN, but SUN did not have enough inventory and needed a long lead time for production. The boss was not satisfied and requested to purchase the hydraulic cartridge relief valves that benchmarking SUN. Cleveland was worried.

 

Cleveland contacted me and told me the dilemma he encountered in purchasing hydraulic cartridge relief valves. He knew that SUN was a loyal customer of AAK Hydraulic Valves for 3 consecutive years and needed my help. My engineer told me that as long as the heat treatment of steel is in place, the standard deviation of AAK processing accuracy can completely benchmark SUN, so that I have a good idea. No comparison, no harm. I deliberately told Cleveland that AAK was only 80% confident. In order not to delay after-sales service, it was recommended for him to find another two hydraulic relief valve manufacturers that he most recognized, that is, three manufacturers made samples at the same time. If AAK sample fails, the sample cost will be returned.

 

2 months later, Cleveland sent an email and advised that the standard deviation of the valve hole accuracy of the 3 hydraulic relief valve manufacturers was out. The test data showed that only the standard deviation of AAK was benchmarked with SUN hydraulic cartridge relief valves. I replied that the essence of manufacturing quality is standard deviation. This is why SUN has selected AAK hydraulic valves for 3 consecutive years, and they focus on the standard deviation. Cleveland's trust in AAK was thus opened. His boss was very satisfied with the price of AAK hydraulic cartridge relief valve, which was 30% cheaper than SUN.

 

AAK hydraulic cartridge relief valve, the standard deviation of valve hole accuracy, benchmarked with SUN, is the result of comparison and also a fact.

 

1. In terms of material, the valve spool of this hydraulic cartridge relief valve is made of German 20CrNi2MoV bearing steel, and the heat treatment process of "secondary quenching+cryogenic treatment+low temperature tempering" is adopted. The micro hardness is 237-247 HV, and the wear resistance is more than 3 times that of similar steel.

 

2. On the equipment, the valve hole of hydraulic cartridge relief valve is finished with Swiss high-precision honing machine, equipped with diamond oilstone, which is completely ground without trace. The valve hole accuracy can be within 2μm, the surface roughness is Ra0.2-0.3.

 

3. In terms of detection, German Diatest small micropore diameter measuring instrument is used, the minimum measurement accuracy can reach 0.1μm, and the valves are 100% full inspected.

 

AAK hydraulic cartridge relief valve, benchmarking SUN, and saving cost for 30%, you can also try a small order!

 

AAK HYDRAULIC CARTRIDGE VALVES (385) 2022-10-20

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