AAK Hydraulic Valve Block, Free of Iron Filings, Patrick admired!

Patrick, an old customer in the Netherlands, used to buy our hydraulic
cartridge valves. In the first half of the year, he purchased a batch of
hydraulic valve blocks from another hydraulic valve manufacturer, but he had
received a strange complaint from users in recent weeks. The hydraulic oil
deteriorated suddenly. After stopping the machine to check the hydraulic oil,
it was found that there were small iron filings inside the oil. After
disassembling the whole hydraulic valve, it was found that the valve spool also
showed signs of wear. The customer judged that there were iron filings in this
batch of hydraulic valve blocks.

Patrick discussed with the hydraulic valve block manufacturer about how to deal
with this quality complaint. The manufacturer replied that it was the problem
of hydraulic oil, not the hydraulic valve block. So this problem was stuck
here. Patrick emailed me and asked if I knew this hydraulic valve block
manufacturer and whether I could mediate and solve the problem.

When I received the drawings of the hydraulic valve block purchased by Patrick
this time, I felt that the iron filings probably came from the hydraulic valve
block, because the intersecting processing channels of this hydraulic valve
block were complex. With Patrick's appeal, I went to the hydraulic valve block
factory. The overall feeling of the factory was still good, but the cleaning
process before hydraulic valve block packaging did not accord with the process
and details in my mind.

When I came back, I emailed Patrick. The manufacturer should understand that
the problem of iron filings lay with them. However, according to the current
iron filings removal process in this factory, even if replenishment, it was
difficult to completely avoid iron filings. So he didn't want to reproduce and
couldn't solve the problem, he had to perfunctory your demands.

Patrick didn't reply to my email for 2 days. When I asked him what else he
needed me to do in this matter, he said that he had a big headache these 2
days. The boss asked him to find a new hydraulic valve block manufacturer to
replenish part of the hydraulic valve blocks to take care of the customer's
dissatisfaction with quality. I reminded him that there were few hydraulic
valve manufacturers that could do this type of hydraulic valves with many
slender holes. AAK HYDRAULIC VALVE solved a similar problem of iron filings of
hydraulic valve block last month, and I sent him the pictures of hydraulic
valve block for reference.

The next day, Patrick asked us how long it would take to produce 200 hydraulic
valve blocks, which was the minimum replenishment quantity required by the
customer. When the replenishment order was confirmed, Patrick was relieved.

How does AAK hydraulic valve remove iron filings from hydraulic valve block?
Firstly, the hydraulic valve block is boiled with high-temperature alkaline
water to make the iron filings of the hydraulic valve block lose magnetism, and
then the pneumatic small grinding wheel is used to clamp the rotary file to go
through the channel once, so as to completely eradicate the possible flash at
the corner, and then the high-pressure washing machine is used to wash the dirt
on the inner and outer surfaces of the channel under high pressure. Finally,
the industrial endoscope and cold light source are used to check the flash
burr, then point-to-point high-pressure flushing until the fixed iron filings
in the hydraulic valve block are completely eradicated.

AAK has unique skills in dealing with iron filings residue in hydraulic valve
block. You can also try a small order.

https://www.aakindustry.com/info-det , ail/hydraulic-valve-block-aak100

Click to Enlarge