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20 manufacturers of hydraulic valve blocks dare not guarantee that there is no iron filings, only AAK promised

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Update time : 2022-04-08 11:16:54

Davis is an old customer from Germany. We met 3 years ago and he purchases hydraulic valves from AAK every year. In the second half of last year, Davis suddenly asked me: can AAK hydraulic valve blocks be as stable as the hydraulic valves? I feel that there is a problem with the hydraulic valve blocks he purchased from other manufacturers. According to the hydraulic valve block drawings sent by Davis, AAK engineers found that this hydraulic valve block is indeed difficult after review. In particular, the oil passage width of the hydraulic valve block is more than 2 times smaller than that of the conventional one, and some valve spool holes are multi segmented structure, which has high requirements for hydraulic valve block processing and iron filings cleaning. I told Davis that you will see the results in 40 days. One month later, AAK sent 5 samples of hydraulic valve blocks as scheduled. Strangely, 2 months later, there was no news from Davis about this hydraulic valve block.

 

After a lapse of more than half a year, that is, last week, Davis sent an email to purchase 1,000 hydraulic valve blocks at one time. The stability of the hydraulic valve blocks must not be lower than that of the samples sent half a year ago. More than half a year has passed since proofing, suddenly, an order of such a big quantity for hydraulic valve blocks have been placed, which makes us happy and surprised.

 

Davis informed that the hydraulic valve block samples provided by AAK have been tested internally. Half a year later, their engineers thought that the hydraulic valve block samples provided by AAK had passed the test, so they placed a large order of hydraulic valve blocks today. In fact, this is not their new order, but moved from the original hydraulic valve block manufacturer to AAK. The original manufacturer started shipping 2 years ago, but during these 2 years, users always complain that the burr of the hydraulic valve blocks pollutes the oil. Sometimes the burr of the hydraulic valve blocks causes the hydraulic valves to jam, which makes their after-sales personnel very embarrassed. They also tried to ask more than 20 new manufacturers of hydraulic valve blocks for solution, but none of them can guarantee 100% free of iron filings. They can only continue to purchase this hydraulic valve block from the original manufacturer. The boss was very unhappy and gave Davis half a year. If the burr problem of the hydraulic valve blocks cannot be completely solved, they can only purchase domestically from Germany in the future, even if the price is more than 60% expensive.

 

AAK hydraulic valve blocks have withstood the test for half a year and Davis also completed the task given by the boss. Davis was also surprised. Later, he asked me: Why can't the original manufacturer solve it for 2 years and more than 20 manufacturers can't guarantee it 100%. How can AAK hydraulic valve blocks be 100% burr free?

 

1. AAK adopts German Alma ultrasonic, which is a sharp deburring tool. Its instantaneous high pressure can effectively remove the burr of the inner hole of the hydraulic valve blocks.

2. Then use the industrial endoscope to check all the hydraulic valve block channels again to ensure that there are no dead corners.

3. Then observe the inner hole of each hydraulic valve block with a high magnification microscope to ensure that it is 100% free of burrs and other impurities before packaging.

 

AAK hydraulic valve blocks have unique skills in deburring. You are welcome to give it a try!

 

AAK HYDRAULIC VALVE (190) 2022-04-08

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