91 visiting now: 68 USA USA flag 23 Belgium Belgium flag 3 UK UK flag 1 Hong Kong Hong Kong flag 1 India India flag 1 Korea Korea flag

Highlighted Companies

The Hydraulic Cartridge Directional Control Valve That Hydraforce Can T Make - China

price: 100.00 Dollar US$

Fossette is from a navigation and aerospace equipment company in Canada, and has been purchasing for 4 years.

At the beginning of the year, their customer wanted to customize a marine hydraulic power unit, which was very strict with the hydraulic cartridge directional control valve.

He contacted HydraForce for customization.

Because of small quantity and tight time, HydraForce could not meet the needs of Fossette.

He selected hydraulic cartridge directional control valve manufacturer in Ningbo, who has cooperated for 2 years, to make samples.

The manufacturer guaranteed that the geometric accuracy of the valve spool and valve cage is 0.8μm, but it was jammed during equipment commissioning.

The hydraulic cartridge directional control valve of this manufacturer is inflexible, and the accuracy is 50% lower than the requirement.

At this moment, the manufacturer said that 1.2μm of hydraulic cartridge directional control valve is the limit, and their engineers can't fulfill their promises.

Fossette contacted more than 10 manufacturers of hydraulic cartridge directional control valves, but it was also fruitless.

The time was wasted for 6 weeks, the customer was dissatisfied, and Fossette started to worry.

Fossette saw on B2B that AAK has released a customer case about "0.8μm Accuracy of hydraulic directional control valve", he left a message on AAK Hydraulic Valve website, asking 3 questions consecutively: 1 - Accuracy 0.8 μm Hydraulic cartridge directional control valve, are you SURE? 2 - Customization time? 3 - The quantity is small, are you interested? He specially emphasized “SURE” in capital letters.

He may be feared of being disappointed again.

I told him that the precision of 0.8μm Hydraulic cartridge directional control valve, is already an existing fact for AAK, it is not a matter of SURE or not.

I need a complete drawing to evaluate the probability of customization success as a whole.

40 days later, AAK sent 10 customized hydraulic cartridge directional control valves.

After that, there was no email from Fossette, and I did not follow it.

Generally, the customer will give a feedback 2-4 weeks after receiving the samples.

4 months later, just last week, Fossette informed us that his customer was very satisfied with the marine hydraulic power unit they provided.

He was preparing for the annual order and asked me to keep an eye on the production in the workshop to ensure the progress and manufacturing quality of large goods.

The hydraulic cartridge directional control valve accuracy within 0.8μm, challenges the processing equipment, the technical team and the manufacturer's quality awareness.

1 - In terms of finish machining, OKK ultra precision machine tool from Japan is used, and AAK self modified fixture is equipped, accuracy of 0.8μm is not our limit.

2 - AAK engineer team, in terms of the selection of raw materials and spare parts, starts from the requirements of working conditions and is targeted, never following the trend.

Especially in the customization of high-precision hydraulic valves, the processing of production drawings, the preparation of processing technology, the technical control, they have unique skills and successful cases.

3 - In terms of inspection, dare not be careless.

The German Mahr cylindricity meter is used, with the help of EasyForm software, and 100% full inspection is carried out.

Only those qualified can go to the packaging workshop.

AAK hydraulic cartridge directional control valve, used in navigation and aerospace, you can also have a small try! AAK HYDRAULIC CARTRIDGE VALVES (372) 2022-10-07


Company Contact:


  • Phone: +8657483008115

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

  • Email: Email


Published date: November 4, 2022

  • 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



  • Only Hawe And Aak Have Been Approved By Gonzalo
    Only Hawe And Aak Have Been Approved By Gonzalo
    Industrial machine tools - AAK Industry CO., LTD - China - October 11, 2022 - 100.00 Dollar US$

    Gonzalo comes from Spain and has been purchasing hydraulic valves from Chinese manufacturers for 3 years. At the beginning of last year, they developed hydraulic gantry shears and needed to purchase hydraulic cartridge relief valves. The engineer dir...

  • Roll Bearing 29332 6030
    Roll Bearing 29332 6030
    Industrial machine tools - DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD - China - October 10, 2022 - 454.00 Dollar US$

    IPP power plant Thrust bearing (Roll bearing) 29332 + 6030 Yoyik is specialized in manufacturing and providing components for turbines, coal-fired generators, and hydro units, as well as for electrical equipments, machinery parts, hydraulic machinery...

  • Even Price Is 30% Higher Quentin Still Placed Order With Aak
    Even Price Is 30% Higher Quentin Still Placed Order With Aak
    Industrial machine tools - AAK Industry CO., LTD - China - October 10, 2022 - 100.00 Dollar US$

    Quentin is from Italy. He is a new purchaser of a company which has cooperated with AAK for 4 years. He is very aggressive, but the first purchase of hydraulic relief valves overturned. At the beginning of this year, a batch of excavators of their co...



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"