The pressure resistance of hydraulic needle valve is 450bar and its service life
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The pressure resistance of hydraulic needle valve is 450bar and its service life
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Carter comes from an excavator manufacturing company in Italy, and the purchase of hydraulic needle valves has been smooth in recent years. At the beginning of last year, an excavator sold by their company for less than 6 months was complained by customer. The boom of the excavator falls too fast due to its own weight, which is easy to cause danger. Their technician found that there was a problem with the hydraulic needle valve of the hydraulic system. There were obvious wear marks at the contact point between the valve spool and valve seat of the hydraulic needle valve, which was easy to leak. The leakage of the hydraulic needle valve will cause the oil saving and speed limiting circuit of the hydraulic cylinder to be uncontrollable. The boss was very angry that the equipment sold for only half a year was complained and asked Carter to find out the cause of the hydraulic needle valve problem and solve it.
Carter contacted the original manufacturer of the hydraulic needle valves and requested to replace the hydraulic needle valves. The manufacturer said that the service life of hydraulic needle valves under 450bar working condition is basically 6 months. The only way to solve this complaint is to replace the hydraulic needle valves every 6 months. Such reply made Carter speechless, because his customer would not accept the high-frequency replacement of hydraulic needle valves, which not only brought a bad user experience, but also the after-sales cost was not cheap. Carter contacted all of his hydraulic needle valve suppliers, and they all replied that they were not sure to achieve a hydraulic needle valve with a service life of 1 year under the working condition of 450bar.
When browsing the website, he found AAK and left a message on the website: How long is the service life of hydraulic needle valves with pressure resistance of 450bar? We replied directly for 1 year or more. The next day, he told the problems encountered in purchasing hydraulic needle valves at the beginning of last year in detail. After receiving the drawing of the hydraulic needle valve, we found that the hydraulic needle valve needed by Carter has much higher requirements than the ordinary hydraulic needle valves. We replied that AAK will select specific materials for samples, which can ensure that the hydraulic needle valves can be used for more than 1 year under normal conditions. If possible, he can directly test the samples.
One month later, AAK sent 24 hydraulic needle valve samples. A year later, Carter sent an email saying that the excavator with AAK hydraulic needle valves still have not encountered boom problem yet. Among all of his hydraulic needle valve suppliers, only AAK has a service life of more than 1 year.
The surface treatment of the valve body of AAK hydraulic needle valves adopts electromagnetic induction heating. Its main advantages are fast heating speed, light oxidation and decarburization of the workpiece surface, and the surface hardening layer can be adjusted according to needs, which is easy to control. The hardened layer has fine martensite structure and high hardness, strength and toughness.
Carter contacted the original manufacturer of the hydraulic needle valves and requested to replace the hydraulic needle valves. The manufacturer said that the service life of hydraulic needle valves under 450bar working condition is basically 6 months. The only way to solve this complaint is to replace the hydraulic needle valves every 6 months. Such reply made Carter speechless, because his customer would not accept the high-frequency replacement of hydraulic needle valves, which not only brought a bad user experience, but also the after-sales cost was not cheap. Carter contacted all of his hydraulic needle valve suppliers, and they all replied that they were not sure to achieve a hydraulic needle valve with a service life of 1 year under the working condition of 450bar.
When browsing the website, he found AAK and left a message on the website: How long is the service life of hydraulic needle valves with pressure resistance of 450bar? We replied directly for 1 year or more. The next day, he told the problems encountered in purchasing hydraulic needle valves at the beginning of last year in detail. After receiving the drawing of the hydraulic needle valve, we found that the hydraulic needle valve needed by Carter has much higher requirements than the ordinary hydraulic needle valves. We replied that AAK will select specific materials for samples, which can ensure that the hydraulic needle valves can be used for more than 1 year under normal conditions. If possible, he can directly test the samples.
One month later, AAK sent 24 hydraulic needle valve samples. A year later, Carter sent an email saying that the excavator with AAK hydraulic needle valves still have not encountered boom problem yet. Among all of his hydraulic needle valve suppliers, only AAK has a service life of more than 1 year.
The surface treatment of the valve body of AAK hydraulic needle valves adopts electromagnetic induction heating. Its main advantages are fast heating speed, light oxidation and decarburization of the workpiece surface, and the surface hardening layer can be adjusted according to needs, which is easy to control. The hardened layer has fine martensite structure and high hardness, strength and toughness.
1 Year service
450bar
Hydraulic Needle Valves
ID producto: 12141477
| Referencia: AAK183
| Vendido por:
AAK INDUSTRY CO., LTD
Fecha de alta del producto 29/04/2022
-
Modificado por el vendedor 29/04/2022
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