63 visiting now: 58 USA USA flag 3 UK UK flag 1 Australia Australia flag 1 Germany Germany flag 1 Singapore Singapore flag 1 Switzerland Switzerland flag

Highlighted Companies

  • Sollex AB (Sweden): Sollex is a Swedish supplier of industrial knives for plastic film manufactures, plastic recycling, packaging, paper,... https://www.sollex.se
  • Aak Solved The Problem For Hydraulic Check Valves In 18days - China

    price: 100.00 Dollar US$

    Daniel is a purchaser of Liebherr branch in Germany.

    He is responsible for the procurement of hydraulic components.

    He has done an excellent job some time ago and has been praised by his supervisor for many times.

    Before the shopping season, he wanted to relax and planned to go on vacation with his family next week.

    A phone call from the boss disrupted all his plans.

    A major dealer in Sweden asked for help for a excavator produced by their company within 1 week .

    His engineer came to the user for routine maintenance and found that there was oil leakage in the hydraulic system.

    After pressure test, it was found that there was oil leakage in the hydraulic check valve, and 12 excavators had such faults.

    Daniel hurriedly contacted the American supplier for this hydraulic check valve, and got the reply that it was too cold in Sweden at this time.

    For such high-frequency operation, even if the hydraulic check valve was replaced, it was estimated that the hydraulic check valve would still leak oil 1 week later.

    Unless more low temperature resistant sealing rings are used, this will take time to test, but the finishing time is to be determined.

    Daniel was so helpless, he had to find a new hydraulic valve supplier.

    Daniel asked several local hydraulic valve manufacturers.

    They either didn't have time to produce or require over 50pcs MOQ.

    After knowing these situations, the supervisor asked Daniel to give the dealer a plan that can be implemented within 10 days.

    Daniel had to cancel the vacation.

    Daniel thought of AAK HYDRUALIC VALVE who he had contacted for inquiry before.

    He emailed us to ask whether we can produce the hydraulic check valve for the excavator, which needs to be resistant to low temperature.

    According to the drawings and working conditions provided by him, we advised that it takes 20 days to customize.

    All our existing hydraulic check valves are not close to this size.

    Daniel reiterated the hydraulic check valve needs to be low temperature resistant, and frankly told us what they are currently experiencing.

    I answered directly that the core lies in the low temperature resistant sealing ring.

    Daniel felt that maybe AAK could solve this problem.

    After 18 days, we sent a sample of hydraulic check valve.

    The test results proved Daniel's feeling.

    The parameters passed the test and there was no oil leakage at low temperature.

    The order for 12 hydraulic check valves was also easily confirmed.

    Daniel's hanging heart can finally be put down.

    Daniel asked why American hydraulic valve manufacturer needs time "to be determined" to test, and we solved it in 18 days.

    Why German hydraulic valve manufacturer is unwilling to do this small quantities, but it is OK for AAK hydraulic valve.

    At the same time, the price of AAK hydraulic valve is cheaper than that made in Germany and that made in the United States.

    The zero leakage hydraulic valve not only has strict requirements on accuracy, but also strict requirements for the sealing ring due to different media or different scenarios.

    The sealing ring not only needs to be sealed, but also needs to automatically improve its sealing effect with the increase of the pressure of the hydraulic oil.

    It also needs not to leak under the harsh working environment such as low temperature or high temperature.

    1 year ago, a Russian customer of AAK hydraulic valve put forward the requirement of low temperature resistance.

    We spent 6 months, experienced 3 failures and 6 seal ring material tests, and innovated a seal ring polymerized with polyurethane elastomer and special rubber from the perspective of friction coefficient.

    Its low temperature critical point is - 45℃, and its wear resistance, oil resistance, fatigue resistance and vibration resistance can meet high-frequency operation.

    It was mass produced 1 year ago.

    AAK delivered 12 hydraulic check valves to his dealer.

    After all installation and commissioning, they worked continuously for 2 weeks without abnormalities.

    The Swedish dealer was very satisfied with the high standard after-sales service provided by Liebherr branch.

    Daniel was very happy.

    His supervisor gave him special permission to spend more days with his family.

    AAK zero leakage hydraulic check valve was delivered to Liebherr.

    You can feel at ease to have a small try.

    AAK HYDRAULIC VALVE (117) 2021-12-12


    Company Contact:


    • Phone: +8657483008115

    • Address: Bona Business Building, No. 456 Taikang Middle Road,, Yinzhou, Ningbo, China, Ningbo , Zhejiang , China

    • Email: Email


    Published date: December 22, 2021

    • Business Description: Focused on the Development and Manufacturing of Hydraulic 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.

    Related listings



    • Bacterial Culture And Monitoring Equipment Development Service
      Bacterial Culture And Monitoring Equipment Development Service
      Professional engineering services - Powerkeep product design company - China - October 1, 2021 - 500000.00 Dollar US$

      As the design team begins to form a cohesive relationship and a shared concept for building the final product, a schedule is created to map out specific steps or sub-goals that will be achieved throughout the process. Clients can be kept apprised of ...

    • Pathological Film Dyeing Machine Research And Development Service
      Pathological Film Dyeing Machine Research And Development Service
      Professional engineering services - Powerkeep product design company - China - September 6, 2021 - 50000.00 Dollar US$

      Being a professional product design firm, our first tangible step in the design process is for the designer to create their vision of your new product idea. After extended thought and discussion in the ideation process, work is now done in a 3D virtu...

    • Pathological Staining Machine Research And Development Service
      Pathological Staining Machine Research And Development Service
      Professional engineering services - Powerkeep product design company - China - August 8, 2021 - 20000.00 Dollar US$

      We can present a well thought out and meaningful project development proposal tailored to your specific product idea. Experienced in bringing ideas to life, we'll take you on the journey from concept to reality. We investigate your expectations inclu...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"