AAK Hydraulic Pressure Control Cartridge Valve 2 Million Times Performance

Payne is from a hydraulic equipment company in the United States. His purchase
process has been smooth for 3 years. He did not have much cooperation with AAK,
until the purchase of a hydraulic pressure control cartridge valve suffered a
loss elsewhere, he trusts AAK more and more. 2 years ago, their company sold
tunnel boring machines. Less than half a year after sales, customers complained
that the equipment was on strike. The after sales worker found that the contact
surface between the hydraulic pressure control cartridge valve spool and the
valve cage of the hydraulic system of the equipment had signs of wear. It was
judged that the leakage led to insufficient pressure supply for the system, and
they went on strike. The original manufacturer of the hydraulic pressure
control cartridge valve pushed the buck. He thought that the system pressure of
the hydraulic tunnel boring machine was more than 450bar, and the opening and
closing frequency of the hydraulic pressure control cartridge valve was high.
After half a year of use, it was normal that the valve cage was worn, so only
solution was to replace the hydraulic pressure control cartridge valves with
new ones. 6 months later after replacement, the same problem occurred again.
Payne realized that the hydraulic pressure control cartridge valve of the
original manufacturer has a service life of only 6 months. The boss was not
satisfied with the after-sales service of the original manufacturer, and asked
Payne to re purchase the hydraulic pressure control cartridge valves with a
service life of at least 18 months. 2 weeks passed, the no manufacturer was
willing to accept the order. Payne was worried.

Payne emailed me and asked how long AAK can guarantee the service life of the
hydraulic pressure control cartridge valve under the working condition of
450bar high pressure and high frequency use? After knowing Payne's dilemma in
purchasing the hydraulic pressure control cartridge valves, I told him that
most hydraulic valve manufacturers would replace the valves in about 6 months
under high-frequency and high-pressure working conditions. Only HAWE hydraulic
pressure control cartridge valve can have a service life of 2 million times,
which is more than 2 years. The manufacturing quality of AAK hydraulic pressure
control cartridge valve is the benchmark of HAWE. After 30 days, AAK sent 12
samples of hydraulic pressure control cartridge valves. 3 weeks later, Payne
informed AAK that the hydraulic pressure control cartridge valve was approved
for function and the performance was waiting for test.

Last month, Payne informed by email that it had been more than a year since AAK
hydraulic pressure control cartridge valve was installed, and there was no
strike complaint about the equipment. His boss was very satisfied with this
batch of purchase. For the hydraulic pressure control cartridge valve under
high frequency use and high pressure conditions, AAK benchmarking HAWE, focused
on 3 points, most hydraulic valve manufacturers can not reach.

1. Material selection is the key. AAK uses SCM415 alloy steel from Japan, which
has mechanical properties more than 70% stronger than similar materials. After
carburizing and heat treatment, the hardness of the valve body is higher than
HRC65, and the wear resistance is more than 3 times of the general 45 steel.
Most hydraulic valve manufacturers want to use this material, but they are not
sufficient on heat treatment, so they have to give up.

2. The inspection is also important. AAK has independently developed hydraulic
valve durability testing equipment. In combination with NFPA/T2.6.1 standard,
it conducts fatigue testing on materials and 100% full inspection.

3. Technical skill is the basis. AAK has shipped the hydraulic cartridge valves
under 450bar high pressure and high frequency use conditions for many times.
AAK do not only the engineer who have worked in HAWE for 7 years, but also the
old technicians who have worked for more than 30 years.

AAK hydraulic pressure control cartridge valve has a performance of 2 million
times under high frequency use and high pressure conditions. You can also have
a small try!

https://www.aakindustry.com/info-detai , l/hydraulic-pressure-control-cartridge-
valves- , aak377

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