AAK hydraulic valve block has the highest cost performance in 5 companies

AAK hydraulic valve block adopts multi edge particle cutting with diamond
reamer, the accuracy can reach 0.002mm, and the surface roughness can reach Ra
0.2um, the precision is twice that of other hydraulic valve manufacturers, and
there is no iron filings. Because the price of AAK hydraulic valve block is a
little higher than that of peers, LIEBHERR excluded AAK from the supplier list.
However, 3 months later, LIEBHERR still placed an order for the hydraulic valve
block with AAK.

This morning, I received an order for hydraulic valve block from Herta from
LIEBHERR company in Germany, which was a little unexpected. Because this is the
hydraulic valve block that AAK sent sample for 3 months ago. Since the sample
was sent, there was no news about the sample. After several follow up emails,
the reply was "unqualified". I asked about the reason why the hydraulic valve
block was unqualified, but didn't get reply. Now I can't understand why the
order comes to us 3 months later.

Herta is mainly responsible for the procurement of hydraulic accessories of
LIEBHERR. In the first half of this year, his company needed to purchase a
batch of high-precision hydraulic valve blocks for hydraulic excavators. At
that time, he selected 5 hydraulic valve factories to send samples to test the
quality and conduct assembly tests. 3 months later, after comprehensive
comparison, their technical team found that the test data of AAK hydraulic
valve block was the best among the 5 hydraulic valve manufacturers.

I asked Herta curiously why the reply he gave us 3 months ago was
"unqualified". He replied that your quotation was unqualified and more
expensive than the other 4 hydraulic valve manufacturers, so we judged AAK to
be unqualified. After 3 months of testing, the technical team believes that
AAK's hydraulic valve block has the highest precision, the strongest durability
and the simplest follow-up maintenance. Although the price of AAK is a little
higher than that of other suppliers, according to the comparison of various
parameters, the hydraulic valve block of AAK can enable LIEBHERR to reduce the
cost of subsequent maintenance, so the technical department designated AAK to
supply this hydraulic valve block.

Herta asked us why some parameters of AAK hydraulic valve block are twice
better than those of peers? The high precision of AAK hydraulic valve block
mainly comes from the diamond reamer used in AAK machining center, which is a
multi edge particle cutting. In the reaming process, the chips are hidden
between the diamond particles and thrown out via coolant flushing and high-
speed rotation, so that the chip removal in the first step is complete. Herta
said that the accuracy of AAK's hydraulic valve block is 0.002mm, while that of
the other 4 hydraulic valve manufacturers are all 0.004mm or above, and the
surface roughness of AAK hydraulic valve block can reach Ra 0 2um, and the
processing diameters of the holes tend to be the same, which is why their
technical team is convinced.

AAK hydraulic valve block has 3 advantages. You will know it after 3 months of
trial. You are welcome to try the order.

https://www.aakindustry.com/info-det , ail/hydraulic-valve-block-aak120

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