AAK Hydraulic Needle Valves Internal Leakage Accuracy Exceed HydraForce

Sal is from Italy. He has been buying hydraulic cartridge valves in China for
quite a long time and is very knowledgeable. At the beginning of this year,
they developed a new hydraulic press for sheet stretching, which uses hydraulic
needle valves. Considering the exhibition time, Sal directly purchased 50
standard hydraulic needle valves of HydraForce, and the trial run was
successful, and the reservation volume at the exhibition was also good. The
boss asked Sal to try to purchase hydraulic needle valves in China instead of
HydraForce. He contacted several hydraulic needle valve suppliers, but they
were not 100% confident about the internal leakage of 0.3cc/min. Sal selected 2
hydraulic needle valve manufacturers with the most trust and quality.

4 weeks later, the hydraulic needle valves were installed with the equipment.
After a period of operation, the working pressure of the hydraulic press could
not be increased, resulting in the plate could not be stretched. The engineer
found that the hydraulic needle valve was abnormal, and there were leakage
traces at the fitting gap between the valve spool and the valve body. After
testing the hydraulic needle valve separately, the internal leakage was
0.5cc/min, while the hydraulic needle valve at 0.3cc/min did not have any
leakage traces, that is, the hydraulic needle valves from those 2 hydraulic
valve manufacturers have unstable internal leakage accuracy. Sal suggested
still purchasing HydraForce standard parts, but the boss was not satisfied and
asked Sal to try again. At this time, Sal was a little worried.

Sal saw on Google that the manufacturing quality of AAK Hydraulic Valves is
comparable to that of HydraForce. He directly sent an email to ask if AAK has
existing programming for HydraForce hydraulic needle valve. We learned that
they were stuck in the internal leakage. I told him that we had existing
samples of this hydraulic needle valve, and its internal leakage had exceeded
HydraForce standard 0.3cc/min. Sal doesn't seem to believe it and asked us to
send 5 samples.

Last week, Sal sent the PO for the first batch of hydraulic needle valves and
told that the internal leakage of AAK samples was at 0.2cc/min, the internal
leakage accuracy was 20% higher than that of HydraForce, but the price of AAK
was cheaper than that of HydraForce. The boss was surprised that he found such
a strong manufacturer AAK Hydraulic Valve.

AAK hydraulic needle valve's ultra-small internal leakage comes from its high
accuracy. We use 3 points to benchmark HydraForce in terms of manufacturing
quality.

1. This hydraulic needle valve is processed with OKK ultra precision machine
tool and nano level CNC system, with a processing accuracy of 0.01-0.3μm. The
shape and profile accuracy is 0.003 - 0.1μm. It laid a good foundation for
accuracy.

2. In terms of equipment maintenance, before machining, the shaft accuracy is
detected, and after the test data is obtained, the accuracy is compensated to
ensure the consistency of the processing accuracy of the components. This link
requires tips and engineers with at least 15 years of industry experience.

3. In terms of accuracy detection, the German Diatest small pore diameter
measuring instrument is used to detect the valve hole of each hydraulic needle
valve. The minimum measurement accuracy range can reach 0.1μm.

AAK hydraulic needle valves, with internal leakage less than 20% of HydraForce,
you can also try a small order!

https://www.aakindustry.com/info-det , ail/hydraulic-needle-valves-aak329

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