189 visiting now: 165 USA USA flag 16 Belgium Belgium flag 4 Russia Russia flag 4 UK UK flag 3 Canada Canada flag 1 China China flag 1 Finland Finland flag

Highlighted Companies

Hydraulic Cartridge Relief Valve High Precision Small Holes Processing - China

price: 150.00 Dollar US$

More than 20 manufacturers can not solve the precise small holes of Hydraulic Cartridge Relief Valve, and AAK impressed Arvin with 3 advantages For hydraulic cartridge relief valves with precise small holes, most of manufacturers encountered penetration when processing the Φ4.5H7, Φ4.7H7 holes.

AAK used 3 advantages, which not only prevented penetration for 100%, but also reached R0.2mm at the bottom of the small holes.

After receiving the samples of AAK hydraulic cartridge relief valves, Arvin sent a PO for hydraulic cartridge relief valves of 20, 000 dollars.

Precise small holes of hydraulic cartridge relief valves is a difficult problem in machining.

The vast majority of hydraulic cartridge valve manufacturers have difficulty in controlling the processing tools, cutting parameters, cutting stress and processing technology, resulting in easy deformation of components or substandard accuracy.

What's more, it is unstable.

For example, the precision of the small holes of this batch of hydraulic cartridge relief valves reached the standard, but the next batch has hidden dangers.

The most taboo about the quality of industrial products is instability.

Arvin is from a hydraulic company in the United States.

Recently, he was overwhelmed by a hydraulic cartridge relief valve with high requirements for machining accuracy and form and position accuracy.

He selected a hydraulic cartridge relief valve manufacturer cooperated for 4 years to make samples.

The samples were made by 3 times, but all failed, and the accuracy was not improved again and again, but was good and bad.

Arvin had to give up this old supplier and contacted 20 hydraulic cartridge relief valve manufacturers.

They either did not reply or gave up directly.

Arvin found AAK hydraulic valves in B2B and left a message: Can you customize the hydraulic cartridge relief valve with precise small holes? After communication, I learned that he was troubled by the difficult machining of precision small holes of hydraulic cartridge relief valve.

According to the parameter requirements of hydraulic cartridge relief valve, the hardness, wear resistance, corrosion resistance and surface treatment, all requirements are very high.

After half a day of discussion, AAK technical team came up with the process plan.

I told Arvin that AAK was 90% sure to solve the problem, and the standard deviation (Sigma) accuracy of size could be stable in different batches.

2 days later, Arvin asked me to make samples.

After 30 days, AAK sent 6 hydraulic cartridge relief valves.

12 days later, Arvin returned a PO for the hydraulic cartridge relief valve worth 20, 000 US dollars.

In order to improve and stabilize the holes accuracy of hydraulic cartridge relief valve, AAK optimized 3 points: 1 - Processing equipment: It is easy to process the hole into a taper hole by conventional grinding.

The Swiss precision lathe is the first choice for processing the precision small holes of this hydraulic cartridge relief valve.

2 - Tool and tool parameters: Six tooth 1201/4.6H7 and 1201/4.8H7 reamers are used as finishing tools, and the tool tip is grinded to R0.2mm to avoid penetration.

3 - Fixture improvement: In order to ensure the state of precision holes during semi finishing, AAK uses self-made floating spring chuck to hold the reamer, avoiding horizontal axial or vertical space errors, which is conducive to precision and better standard deviation.

AAK hydraulic cartridge relief valve precision small holes, only 3 steps to ensure quality, welcome to try! AAK HYDRAULIC CARTRIDGE VALVES (402) 2022-11-06


Company Contact:


  • Phone: +8657483008115

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

  • Email: Email


Published date: December 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



  • Hydraulic Manifold Manufacturer Of Top Brands
    Hydraulic Manifold Manufacturer Of Top Brands
    Machine made parts - AAK Industry CO., LTD - China - December 3, 2022 - 480.00 Dollar US$

    13 years of AAK Hydraulic Manifolds, insisting on moving forward at 3 points A few days ago, Jackson, who is engaged in hydraulic manifolds procurement from Honeywell, one of the world's top 500 companies, asked me a question. Can you sum up the diff...

  • Hydraulic Cartridge Counterbalance Valve 3 Highlights
    Hydraulic Cartridge Counterbalance Valve 3 Highlights
    Machine made parts - AAK Industry CO., LTD - China - December 2, 2022 - 180.00 Dollar US$

    3 Highlights of AAK Hydraulic Cartridge Counterbalance Valve, Camden gave up SUN Camden is from a hydraulic equipment company in Sweden and has been engaged in procurement for 2 years. One of their customers ordered 2 sets of customized hydraulic pow...

  • Hydraulic Cartridge Needle Valve Of High Stability
    Hydraulic Cartridge Needle Valve Of High Stability
    Machine made parts - AAK Industry CO., LTD - China - December 1, 2022 - 120.00 Dollar US$

    Hydraulic Cartridge Needle valve with 3 Functions, AAK boosted the Hot Sales of Equipment with High Stability Amistad is from a hydraulic equipment company in Spain. His purchase has been smooth in the past 3 years. Some time ago, their company devel...



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"