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  • Hydraulic Relief Valves High Accuracy And Stability - China

    price: 90.00 Dollar US$

    AAK hydraulic relief valve with 6 samples in 3 months turned Jose's abortion order into a big one Jose comes from a hydraulic equipment manufacturing company in Brazil and has been purchasing for many years.

    In the first half of last year, he was foxed by a hydraulic relief valve with high requirements.

    AAK took more than 3 months to make samples of the hydraulic relief valves for 6 times, helped turn Jose's abortion order into a big one.

    At the beginning of last year, Jose’s company received an order for a high-precision hydraulic full-automatic wrench, and customer needed to place a large order after the trial sample order.

    Jose knows that the wrench function is largely determined by the accuracy and flow control of the hydraulic relief valves.

    After discussing with more than 10 hydraulic cartridge valve manufacturers, he chose 3 of them to make samples, but the results showed that none of the hydraulic relief valve samples can meet the requirements of valve hole accuracy tolerance of 0.8μm, and the flow control is unstable.

    Jose asked them to make samples again, but only one of them was willing to try.

    1 month later, the accuracy was still not up to standard.

    The customer was very dissatisfied that almost 3 months passed, the wrench sample was still not available and cancelled the order.

    The boss asked Jose to continue to look for the hydraulic relief valve manufacturers and develop the samples first whether the customer cancelled the order or not.

    Jose found AAK on Google and left a message on AAK website: is AAK willing to develop a hydraulic relief valve that was failed in more than 10 factories? As soon as I read this message, which is a little "stimulating", I became motivated.

    After receiving his hydraulic relief valve drawing, I knew why so many factories couldn't make it.

    The accuracy and stability requirements of the hydraulic relief valve are 3 times that of the standard parts.

    I replied to him: AAK is 90% sure to be successful, but can't determine the development time, maybe 3 months.

    I think most customers will basically give up AAK after receiving such an answer, but 3 days later, AAK received the development fee he paid.

    I think this is Jose's trust in AAK.

    I also told him that if AAK development failed, I was willing to refund 100% of the development fee, and I used trust to repay his trust in me.

    After trying samples for 6 times in more than 3 months, AAK sent the hydraulic relief valve samples finally after they passed the test.

    2 weeks later, Jose said that the testing on the wrench sample was also successful.

    If the customer is satisfied with the trial, there will be a large order for them.

    Jose learned our persistence in the sample, and was impressed by AAK’s 3 advantages: 1 - AAK has cooperated with 3 Fortune 500 enterprises to develop more than 200 non-standard hydraulic relief valves, and all of them have been successful.

    2 - AAK's German GILDEMEISTER ultra-high precision machine tool is specially used for hydraulic relief valves with high precision requirements, ensuring the machining accuracy of 0.5-0.8μm.

    3 - AAK engineer has nail spirit, no matter how long the development takes, if it is not successful, it will not stop.

    AAK hydraulic relief valves, high precision, long service life, you can also have a small try! AAK HYDRAULIC CARTRIDGE VALVES (303) 2022-07-29


    Company Contact:


    • Phone: 86-574-83008115

    • Address: Bona Building, No. 456 Taikang Middle Road, Yinzhou, Ningbo, China, NINGBO , ZHEJIANG , China

    • Email: Email


    Published date: August 27, 2022

    • Business Description: Hydraulic valve manufacturer, focused on the Development and Manufacturing of Hydraulic Cartridge Valves since 2006, in Ningbo China

      Since its establishment 12 years ago, 6 first-line international brand importers have placed orders with AAK for 5 consecutive years, with a re-peat order rate of 62%.

      Exported to more than 20 countries, AAK Hydraulic Valves used on "AIRCRAFT" have been supplied to Russian customers.

      68%+ of the high precision hydraulic valves exported from Ningbo Port come from AAK hydraulic valves.

      Our Products:

      - Hydraulic Relief Valves Dust Free Packaged For Food Equipment

      - Hydraulic Needle Valves 450bar Over 1 Year Service Life

      - Hydraulic Pilot Operated Relief Valves Benchmarked With German Hawe

      - With Temperature And Gain From Aak Hydraulic Valves

      - Hydraulic Valve Blocks Free Of Oil Leakage

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