AAK hydraulic sequence valves replaced the Spanish factory with design

Hudson is an old purchaser of LARZEP company in Spain. He cooperates with us on
are some non-standard hydraulic sequence valves, and often discuss some
difficult and miscellaneous problems of hydraulic sequence valves with us. In
the second half of last year, their company developed a machine tool hydraulic
system, which uses the hydraulic sequence valves to implement the device of
positioning first and then clamping. In order to save development time, Hudson
purchased directly from Spanish hydraulic sequence valve manufacturers.
According to the hydraulic sequence valve drawings provided by Hudson, the
factory delivered 20 hydraulic sequence valve samples in 30 days. After the
test run, it was found that the positioning clamping device reacted slowly
after the machine tool was started. Check the oil circuit and components of the
whole hydraulic system one by one, and there is no abnormality. Their engineers
speculated that there was a problem with the hydraulic sequence valves.

Hudson contacted the original factory. The manufacturer fed back that the
samples of hydraulic sequence valves were completely produced according to the
drawings provided by LARZEP company, and the dimensional accuracy met the
requirements. Their engineers tested the hydraulic sequence valves separately
and there was no abnormality. Hudson's team explored for 2 days and determined
that there was a problem with the design of the hydraulic sequence valves.
Hudson contacted AAK because the hydraulic sequence valve problems encountered
several times before were solved by AAK. According to his fault description,
drawings of hydraulic sequence valve, working parameters of hydraulic system of
machine tool and video of test run, AAK engineer did find the problem in the
design of hydraulic sequence valve.

AAK engineer's suggestion is to change the design mode of the hydraulic
sequence valve to maintain a minimum "pilot pressure" in the starting circuit
and "fully open" when it is higher than the set pressure. This feature can
effectively reduce the throttling loss of the system under the working pressure
and make the clamping and positioning system of the machine tool sensitive.
Hudson team had to stop the machine test and let AAK immediately test the
sample according to AAK design recommendations.

After 30 days, AAK sent 20 hydraulic sequence valve samples and provided our
working schematic diagram. Hudson team installed and commissioned the machine
tool after receiving it, and the machine tool was continuously tested for 48H.
The reaction of the positioning and clamping device of the machine tool has
always been normal. Hudson emailed us that AAK newly designed hydraulic
sequence valve was more reliable than their native Spanish ones, and their
engineers were surprised by AAK design ability. Thanks to the help of AAK, they
succeeded in the test run.

Hudson privately told us to wait for the email for the annual order of the
hydraulic sequence valves, their team is confident that this machine tool will
sell well. His boss is very satisfied with their performance in promoting the
new equipment this time.

AAK hydraulic sequence valve helps customers make money. You are welcome to
give it a try!

https://www.aakindustry.com/info-detai , l/hydraulic-sequence-valves-aak185

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