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AAK Hydraulic Cartridge Pressure Control Valve is used for Military Equipment, and Forrest cannot find a second one

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Update time : 2022-12-15 10:24:40

Forrest, from Spain, has been engaged in the procurement of hydraulic components for 3 years. At the beginning of the year, their customer asked for a set of hydraulic power units for military equipment, which had high requirements for hydraulic cartridge pressure control valves. The spool cylindricity was less than 0.0015, the roundness was less than 0.001, and the clearance between the valve spool and the valve cage was within 1μm. Forrest selected a manufacturer of hydraulic cartridge pressure control valves that has cooperated for 5 years to make samples. 2 weeks later, the manufacturer gave up. He was unable to process the valve spool, which has low efficiency and high scrap rate. Forrest contacted more than 10 other hydraulic cartridge valve manufacturers. They either had no reply or were only 60% confident. At this time, Forrest was worried.

 

Forrest found AAK website in B2B, noticed the article about valve spool processing, left a message of 3 questions, and attached the drawing of hydraulic cartridge pressure control valve to remind that the valve is used on military equipment.

 

1. Can AAK process the valve spool with cylindricity less than 0.0015 and roundness less than 0.001?

 

2. Can AAK customize the hydraulic cartridge pressure control valve with the clearance between valve spool and valve sage within 1μm?

 

3. What is the lead time and cost to customize this hydraulic cartridge pressure control valve?

 

I told him that the spool required by the drawing is difficult to process, but AAK has produced similar spool. Forrest requested for samples. After 50 days, 12 samples of hydraulic cartridge pressure control valves were sent out.

 

2 months later, Forrest e-mailed us that the customer had approved their hydraulic power unit. Their engineers are very interested in AAK's production of hydraulic cartridge pressure control valves. How did AAK do to ensure the accuracy of the valve spool. AAK adopts TSCHUDIN high-precision CNC cylindrical grinder imported from Switzerland, which meets the high-precision requirements of valve spool.

 

The machine tool control system can automatically measure and store the inner hole and taper of the valve spool, and automatically grind out the size and taper of the valve spool according to the data. Two measuring heads are equipped in the radial and axial direction, and the measurement repeatability accuracy is less than 0.1μm. Carry out real-time online measurement and feedback, and realize 100% grinding process control before, during and after grinding. The tailstock is hydraulically driven, which can be driven by the system to precisely adjust the taper of the valve spool, with a resolution of 0.1μm. At the same time, two online measuring heads of the outer circle shall be matched to ensure the precision after machining, and the valve spool cylindricity shall be less than 0.0015, the roundness shall be less than 0.001, and the clearance between the valve spool and the valve cage shall be within 1μm.

 

AAK hydraulic cartridge pressure control valve, the clearance between valve spool and valve cage is within 1μm, you can also try a small order!

 

AAK HYDRAULIC CARTRIDGE VALVES (441) 2022-12-15

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