AAK Hydraulic Cartridge Counterbalance Valve Free from Load Interference

Zander is from a hydraulic manufacturing company in Greece. In the first half
of this year, their company planned to upgrade the old logistics crane and put
it back on the market. Its main goal is to improve its stability by 20%
compared with its peers. The optimization of the hydraulic cartridge
counterbalance valve is the key, but the original hydraulic cartridge
counterbalance valve manufacturer has no ability to innovate. Zander found a
local hydraulic cartridge valve manufacturer to optimize the structure and make
samples. However, during commissioning, when the load of the system drops, the
pressure fluctuation cannot exceed that of the peers, and the hydraulic
cartridge counterbalance valve cannot avoid load interference. The local
hydraulic cartridge valve manufacturer has no ability for further improvement.
2 months passed by, but there was still no solution. The boss pushed for
progress many times, and Zander was worried.

Zander found AAK on Google, noticed that AAK had released some customer cases
about hydraulic cartridge counterbalance valves, and sent us an email.
According to the schematic diagram of the hydraulic system and the original
hydraulic cartridge counterbalance valve drawing provided by him, AAK engineer
informed that the structure optimized by his local hydraulic cartridge valve
manufacturer was not reasonable and needed to be adjusted. AAK has a trick to
prevent the hydraulic cartridge counterbalance valve from being affected by the
load. Zander asked for AAK samples. After 45 days, AAK sent 20 samples of
hydraulic cartridge counterbalance valves.

3 months later, Zander sent an order for 500 hydraulic cartridge counterbalance
valves, and told us that their technical department was very satisfied with AAK
hydraulic cartridge counterbalance valves. Not only did they overcome the load
impact, but also improved the stability of their new logistics crane by more
than 20%. In the promotion stage, the booking was good, and the boss was happy.

AAK hydraulic cartridge counterbalance valve can stably control the opening of
the valve spool without being disturbed by the load, and its stability is
higher than that of its peers, because we have tricks on optimizing the
structure.

AAK hydraulic cartridge counterbalance valve is composed of a valve body, a
valve seat, a main valve spool, a pilot valve spool and a pilot mechanism. The
valve seat is connected with the valve body and forms a connected first
channel. The extended end of the valve seat butts against the pilot mechanism
and forms a second channel. The main valve spool is provided with a throttling
slot. One end of the pilot valve spool slides and is arranged in the inner
cavity of the main valve spool. The other end is connected with the pilot
mechanism. The pilot valve spool is equipped with a throttling slot. The pilot
valve spool is connected with the inner cavity of the main valve spool as a
balanced structure. The force of the pilot mechanism can balance the oil
pressure in the oil passage on the pilot valve spool. Therefore, the opening of
the main valve spool is not affected by the load pressure wave.

AAK hydraulic cartridge counterbalance valve, free from load interference, you
can also have a small try!

https://www.aakindustry.com/info-detai , l/counterbalance-valves-aak440

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