187 visiting now: 168 USA USA flag 13 Belgium Belgium flag 5 France France flag 2 Canada Canada flag 2 Russia Russia flag 2 UK UK flag 1 China China flag

Highlighted Companies

Aak Mass Produced The Hydraulic Manifold Valve Holes 3 Years Ago - China

price: 100.00 Dollar US$

Bekov is from a Russian hydraulic equipment company.

Most of the hydraulic manifolds in the past 3 years were purchased from Ningbo and went smoothly.

A batch of hydraulic manifolds purchased last time stumped him due to the precision of valve block holes.

At the beginning of the year, their customer customized a hydraulic power unit.

From the perspective of hydraulic manifold alone, it was not difficult, but the requirements for the accuracy of the valve block bore diameter were high.

He chose a hydraulic manifold manufacturer in Ningbo who had cooperated for 3 years to place the order.

He thought that the PO was confirmed by the supplier and his work was completed, but from the start of the sample, trouble came.

After 50 days, the hydraulic manifold manufacturer advised that he could not achieve the accuracy of the valve block aperture.

After the processing of 10 valve blocks, only 2 of them were qualified, and 80% of them were scrapped, so he had to give up.

The supplier seems to be relieved, but it is less than 3 months from the customer's delivery date, and the hydraulic manifold supplier has not been determined yet.

A week later, Bekov contacted more than 10 hydraulic manifold manufacturers, but none of them were confident to accept the order.

Bekov was extremely anxious.

Last month, I received an email from my old Russian customer Sumarokov: Aperture φ 10.3mm, hole depth 90.5mm, coaxiality requirement: φ 0.025mm, cylindricity requirement is φ 0.02mm, surface roughness Ra value is 0.8 μm, these precision requirements should not be difficult for AAK, right? I was a little confused.

After communication, I learned that Bekov, a friend of Sumarokov, faced the problem of aperture accuracy when purchasing hydraulic manifolds.

I replied to Sumarokov, with your trust, I will solve the problem as quickly as possible to ensure that Bekov is at ease.

According to the series of drawings of hydraulic manifold from Bekov, besides the aperture accuracy, all the others are conventional parts.

However, AAK encountered this aperture precision in processing valve blocks 3 years ago, so now it is fine for AAK.

After 45 days, the hydraulic manifold sample is sent out.

The day before yesterday, Bekov sent an email.

The accuracy of every hole diameter processed by AAK was approved by their engineer.

AAK hydraulic manifold was installed on their hydraulic power unit, and the equipment was running normally, just waiting for the purchase quantity of their customer.

AAK hydraulic manifold valve hole precision is ahead of its peers, which originates from 3 points: 1 - Material selection control: before processing, ensure that the material is free of casting defects and the blank allowance is uniform.

Optimize the processing and cutting parameters according to the accuracy.

2 - Equipment selection: Mikron machining center imported from Switzerland can ensure that the coaxiality of fixture and equipment rotation and cutter bar is controlled within 0.01mm, and the coaxiality of precision valve hole is controlled within φ 0.025mm.

3 - Process optimization: from drilling, reaming, rough reaming, fine reaming, reaming and extruding without edge, 5 links.

The increase in outer diameter of each link shall be controlled at 0.02 mm, and kerosene cooling shall be adopted.

It replaces the traditional process of "drilling, reaming, countersinking, reaming and grinding", and avoids the expansion of orifice and instability of aperture.

AAK hydraulic manifold, not only precision, you can also try a small order! AAK HYDRAULIC VALVES (386) 2022-10-21


Company Contact:


  • Phone: +8657483008115

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

  • Email: Email


Published date: November 17, 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



  • Radio Frequency Probe Pogo Pin Rpm700 Series For Electronic Test
    Radio Frequency Probe Pogo Pin Rpm700 Series For Electronic Test
    Machine made parts - Centalic Technology Development Ltd. - Hong Kong - November 16, 2022 - contact company for price

    Radio Frequency Probe Pogo Pin RPM700 Series for Electronic Test Radio frequency coaxial probes are a type of measurement device used for electronic test equipment to measure radio frequency signals of electronic circuits in silicon wafers, die and o...

  • Globe Valves
    Globe Valves
    Machine made parts - Zhejiang Shunlin Valve Co., Ltd. - China - November 16, 2022 - contact company for price

    Features: Name:Gate valves Size:2"-48" Pressu re:150LB-2500LB •Design and manufacture:API 600 •Face to face dimension:36" and smaller to ASME B16.10, 40"and larger to manufaturer's standard •Flanged end:24"and smaller to ASME B16.5 26"and larger to A...

  • American Trailer Gearbox Valve
    American Trailer Gearbox Valve
    Machine made parts - Zhejiang Juda Electromechanical Technology Co., Ltd. - China - November 14, 2022 - contact company for price

    JUDA No.:JD13002 REF No.:500 185 971 8 PORT 1:M12×1.5 PORT 21:M14×1.5 PORT 22:M14×1.5 APPLICATION :AMERICAN TRAILER Cixi Changhe xinqide seal factory is China Wholesale Rubber O-Rings Manufacturers and Custom Bulk Rubber Rings Factory, offer Custom R...



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"