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A Hydraulic cartridge valve manufacturer in Ningbo failed 3 samples on the valve spool, and AAK focused on 3 points and passed the test once

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Update time : 2023-11-21 15:43:55

The day before yesterday, someone left a message on the website of hydraulic cartridge valve manufacturer AAK: I have read several AAK articles about valve cage precision machining, and I would like to know how hydraulic cartridge valve manufacturer AAK ensures the machining accuracy of valve spools? From the IP, it should be a competitor of hydraulic cartridge valve manufacturers. My peers would like to see AAK's processing and equipment, even if they imitate the hydraulic cartridge valve manufacturer AAK, but in fact, I do not reject it.

 

Whether it is a cone type valve spool or a ball type valve spool, machining accuracy is the key. I remember in March this year, Basim from Türkiye met the problem of high-precision valve spool with a peer of hydraulic cartridge valve manufacturers in Ningbo. For 3 samples, the cylindricity of the valve spool hovered between 0.3 and 0.6 µm, and the accuracy was also between 2 and 3 µm. Under the recommendation of a hydraulic cartridge valve manufacturer in Ningbo, Basim contacted AAK. I told Basim that for the cylindricity of valve spool below 0.3 µm and the accuracy controlled within 2 µm, although this requirement is a bit difficult, it can still be achieved in the precision machining process as long as a CNC cylindrical grinder is used and there is precise automatic detection. Basim seemed a bit hesitant, so I went to the workshop and filmed a video of the equipment used by hydraulic cartridge valve manufacturer AAK and how to process the valve spool. After 3 days, Basim requested us to make 12 samples first.

 

For valve spools with high requirements, the first choice of hydraulic cartridge valve manufacturer AAK is Mitsubishi's CNC cylindrical grinder from Japan for precision machining. At the same time, AAK has also upgraded the end face measuring instrument and the outer circle measuring instrument, which can provide synchronous feedback with precision machining. The laser beam from the end face measuring instrument is synchronously irradiated on the valve spool end face, and the generated light wave is received and transmitted to the system. In this way, the precision of the valve spool end face can be dynamically tested. The outer circle measuring instrument measures the surface of cylindrical workpieces point by point and corrects cylindricity from time to time. Once an abnormality is detected, the device will automatically correct the deviation. There may be many hydraulic valve manufacturers who dare to buy Japanese CNC cylindrical grinding machines, but there may not be many hydraulic cartridge valve manufacturers in Ningbo China who dare to upgrade their measurement systems.

 

The higher the precision of the valve spool, the more important it is to focus on precision machining equipment, automated testing system, and specialized machine operation management. With these 3 basic points, after 3 to 6 months of mutual adjustment, human errors are basically eliminated. 2 weeks after Basim received 12 hydraulic cartridge valves samples from AAK, we were advised that their engineers first disassembled 6 samples and approved AAK samples only after testing the accuracy of the valve spool.

 

Hydraulic cartridge valve manufacturer AAK in Ningbo China, focuses on 3 points, and is not afraid of the difficulty of the valve spool. You can also give it a try.

 

AAK HYDRAULIC CARTRIDGE VALVES (720) 2023-11-21

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