The pressure resistance is 450bar and the service life is 2 million times. AAK hydraulic check valve replaces German HAWE
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- Hydraulic manifold blocks purchased separately had oil leakage, and AAK take over to produce the whole and promise no repair within 1 year
- AAK processed the hydraulic valve blocks with compound cutting tools, the quality caught up with Germany, and the delivery was 30 days faster
- Only AAK was able to produce the hydraulic manifold blocks, and its technology is not inferior to American and Japanese counterparts
- Customer who are greedy for cheap hydraulic valves got back to AAK after suffering heavy losses
- How do you understand AAK mindfulness of be a man of credit and integrity to make hydraulic valves?
- Hydraulic manifolds of 450MPa pressure resistance and ultra light weight , AAK samples can be used in aviation at one time
|Brand Name:||AAK HYDRUALIC VALVE||Place of Origin:||China||Model Number:||AAK215|
|Type:||Hydraulic Power Units|
At 05:10 this morning, I was listening to music and browsing emails. Billy, who had no news in 9 months, sent an email. Without reading the email, I could guess that the hydraulic check valve developed by AAK for 3 months last year had a result. Opening Billy's e-mail and it is an annual order of 5,000 hydraulic check valves at one time, with about 500 hydraulic check valves delivered every month. Billy is from a hydraulic equipment company in the United States, he has purchased a small number of high-pressure resistant hydraulic check valves from AAK in the past. At the beginning of last year, his company received complaints from a customer that its high-power bulldozers were prone to weak starting of the hydraulic system after being used in less than half a year. The after-sales engineer found that the hydraulic check valves leaked and can not maintain the pressure and caused the problem.
Billy contacted the original manufacturer of the hydraulic check valves, and manufacturer advised that the system pressure of the high-power bulldozer exceeded 450bar, and the opening and closing frequency was also high. When the hydraulic check valve was in the high-pressure state above 450bar, the valve spool was worn quickly, and the service life could only be guaranteed as 1 million times. Therefore, it was normal to replace the hydraulic check valves every half a year. If you want a hydraulic check valve with a service life of 2 million times, you can only purchase it from German HAWE. Billy has no choice but to make do with the hydraulic check valves of the original manufacturer first, but the after-sales cost every half a year is really unbearable. Maybe other manufacturers can offer hydraulic check valves with service life more than 1 million times. Billy began to contact other factories, including AAK.
After receiving Billy's email, AAK engineers had reached a conclusion according to the hydraulic check valve drawings and bulldozer working parameters. In order to exceed the service life of 2 million times of the hydraulic check valves, we can only test new high-pressure resistant materials. We replied Billy at that time that according to the existing steel options of AAK, what your original manufacturer said was right, it can only guarantee the service life of 1 million times of the hydraulic check valves. However, we are confident to develop the one of 2 million times, because we have our own R & D experience in anti-high pressure.
Billy replied directly that AAK would be given 3 months to sample the hydraulic check valves with pressure resistance above 450 bar. He also frankly informed that two other hydraulic check valve manufacturers were also making samples. If all manufacturers fail, they can only buy high-pressure hydraulic check valves from German HAWE. Three months later, AAK successfully sent 20 hydraulic check valve samples to Billy. Nine months later, the email came from Billy today. Billy noted the sample testing results in the email. The bulldozer equipped with AAK hydraulic check valve was still normal after 9 months, while the hydraulic check valves from another two manufacturers were eliminated in the 6th and 8th months.
AAK hydraulic check valve has a pressure resistance of more than 450 bar and a service life of more than 2 million times, because:
1. AAK has engineer who have worked in the Shanghai factory of German HAWE for 11 years and has experience in high pressure resistance.
2. We have tested more than 20 kinds of steel and selected the most suitable 35CrMo steel to produce the valve spool of this hydraulic check valve.
3. Good materials also need good processing. The heat treatment method adopted by AAK for 35CrMo alloy steel is 845 ℃ annealing, 860 ℃ quenching (oil quenching) and 200 ℃ low temperature tempering. After this special heat treatment, its hardness and wear resistance are increased by at least 50%.
AAK hydraulic check valve, can resist pressure of more than 450bar, you can also have a small try!
AAK HYDRAULIC VALVES (215) 2022-05-03
- AAK INDUSTRY CO., LTD
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- The service life of the ultra-high pressure hydraulic relief valve is 1.5 years longer than that of its peers. Only AAK benchmarked with German HAWE
- There is no jamming and the tolerance of form and position is consistent. Only AAK hydraulic check valve impressed the American customer
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