Andy repeated an order for AAK hydraulic flow control valve after Waterloo

Just yesterday, I received a repeat order from Andy for a hydraulic flow
control valve, which is just 3 months away from the delivery time of the last
batch of hydraulic valves. The American customer Andy, started to communicate
with us in 2019. Maybe it was just not the right time, we still didn't partner
with each other till the beginning of this year. Because of encountering a
Waterloo at the previous hydraulic valve manufacturer, he turned the tables at
AAK and regained his confidence.

At the end of last year, Andy purchased a batch of hydraulic flow control
valves from a hydraulic valve manufacturer. Because 20% of the shipments
leaked, he encountered customer claims. The old hydraulic valve manufacturer
was unwilling to bear the claim or re-produce. The customer kept pushing for
replacement hurriedly. The boss asked him to find a high-quality hydraulic
valve manufacturer to reproduce the goods for the customer.

Andy had a big headache at that time. The replacement quantity is not big, the
hydraulic valve manufacturers with exquisite quality were unwilling to produce
the small quantity for him. The hydraulic valve manufacturers who were willing
to produce this quantity, were not able to meet the customer’s requirement
about the roughness of hydraulic flow control valve. He ran into a wall
everywhere, which made Andy haggard.

When Andy contacted with AAK HYDRAULIC VALVE, we are willing to cooperate with
her to solve this difficult problem. We tested the leaked hydraulic flow
control valve sample. The reason for the leakage is the roughness of the
mounting surface of the hydraulic flow control valve. According to the
customer's service conditions, this roughness must be controlled at 1.0 μ M or
less. Andy is very confused why 80% of the installation surface roughness of
hydraulic flow control valve is up to standard, while 20% is beyond this range.
The root of this fluctuation is the master's operation method, resulting in
human error. The surface roughness is the depth, density, texture of the traces
left on the machined surface from the action between the tool and the part
surface, which depends on the master's processing technique.

Andy is very clear that at present, most domestic hydraulic valve manufacturers
generally control the roughness of the installation surface of hydraulic flow
control valve at 0.8-1.0 μ m. The biggest problem is not stable enough. Andy
also knows that only AAK controls the roughness value of hydraulic flow control
valve within 0.8 μ M, which can completely avoid leakage outside the hydraulic
flow control valve, because of rest assured, Andy decided to repeat the order
with AAK HYDRAULIC VALVE.

AAK HYDRAULIC VALVE, first determines the material according to the roughness
required by the customer, and then determine the cutting process of the
material according to the characteristics of the material. The workshop
produces it in strict accordance with the process sheet. Technically, we
abandon the traditional grinding technology and use "turning instead of
grinding". Equipped with high-precision CNC lathes, we refit elastic cutting
tools by ourselves, and use automatic measuring instruments. The Ra value of
hydraulic flow control valve is controlled in the computer at any time, which
can eliminate man-made errors and prevent the fluctuation of Ra value of
hydraulic flow control valve completely.
 
AAK hydraulic valves, produced with ingenuity, can be purchased with
confidence. At the same time, the delivery date can be guaranteed. If you have
any concerns about the hydraulic valve, you might come to have a look at our
website www.aakindustry.com.

https://www.aakindustry.com/

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