AAK Hydraulic Needle Valve Coaxiality Error within 2μm

Diego, from Spain, has been engaged in the procurement of hydraulic valves for
5 - 6 years, and has been successful. But the hydraulic cartridge needle valves
purchased from a local manufacturer stumped him. At the beginning of last year,
their company urgently purchased a batch of hydraulic needle valves to be
installed on a batch of hydraulic equipment that customers urgently need. Diego
purchased the hydraulic needle valves from a local manufacturer. 3 months after
the equipment was sold, the customer complained that the equipment was
unstable. After testing the hydraulic system, it was found that when the
hydraulic needle valve spool was in the fully closed position, it was stuck
radially, because the coaxiality deviation between the valve spool and the
valve body was 2μm, 3μm, or 4μm. That is, the standard deviation is not up
to standard. The original manufacturer of the hydraulic needle valves advised
that this is an individual and can be replaced, but there are more and more
complaints later. Diego knows that the coaxiality deviation must be completely
solved.

After discussion with engineers, Diego defined the coaxiality accuracy of
hydraulic needle valve spool and valve body within 2μm. Based on this
quantification, Diego contacted more than 10 hydraulic needle valve
manufacturers, but none of them offered quote for a week. The customer is
pushing the after-sales service process. Now there is no solution. Diego is
under great pressure.

Diego found AAK on Google, noticed that AAK had solved the coaxiality problem
for customers, and left a message to us: Can you control the coaxiality error
of the hydraulic needle valve within 2μm? At the sight of such messages, it
was assumed that he had encountered difficulties in purchasing hydraulic needle
valves. After communication, it was learned that even he purchased from Spain
hydraulic valve manufacturer, coaxiality deviation could not be completely
avoided.

When he learned that HydraForce has been a loyal customer of AAK for 9
consecutive years, AAK hydraulic valves have also served 3 Fortune 500
enterprises, and there are customer cases that coaxiality problem has solved,
he asked about the development time and cost, which means he wanted to try the
order. I always think that in the field of industrial products, customers do
not buy your products, not because of distance or high prices, but because they
do not trust you. 50 days later, AAK sent 30 hydraulic needle valve samples. 4
weeks later, Diego informed that AAK hydraulic throttle valves had been
installed on the equipment and the overall operation was normal. I replied that
within 18 months, there was no after-sales concern.

Last week, Diego said in an email that the AAK hydraulic needle valves have
been installed in the equipment for more than a year, and there is no customer
feedback on what function is affected by the coaxiality. The coaxiality error
of AAK hydraulic throttle valve is controlled within 2μm, and lead the
industry with 3 aspects:

1. The valve spool and valve hole of the hydraulic needle valve are finely
machined. The Swiss high-precision honing machine is used, and equipped with a
diamond oilstone.

2. 30 years of technicians, specially assigned for special machine, picky on
precision.

3. Coaxiality measuring instrument, cylindricity measuring instrument,
profiler, are used to detect the coaxiality comprehensively.

AAK hydraulic needle valve, coaxiality error within 2μm, you can also try a
small order!

https://www.aakindustry.com/info-det , ail/hydraulic-needle-valves-aak388

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