Welcome to www.aakindustry.com

The pressure resistance of hydraulic needle valve is 450bar and its service life exceeds 1 year. AAK is an irreplaceable supplier

Views : 138
Update time : 2022-04-01 11:39:10

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. After surface quenching, the surface of the workpiece has large compressive internal stress, and the fatigue breaking resistance of the workpiece is high. Using induction heating surface quenching, the number of fatigue cycles under design load is about 10 times higher than that with ordinary quenching and tempering treatment.

 

AAK hydraulic needle valves, special material selection, high pressure resistance and durability, welcome to have a small try!

 

AAK HYDRAULIC VALVE (183) 2022-04-01

Related News
Read More >>
With a small good trick, AAK Hydraulic Cartridge Relief Valve replaced HydraForce standard part With a small good trick, AAK Hydraulic Cartridge Relief Valve replaced HydraForce standard part
Mar .23.2023
Cyrano, an experienced buyer of hydraulic cartridge valves from Greece, encountered difficulties with a batch of hydraulic cartridge relief valves.
AAK Hydraulic Pilot operated Relief Valve with 1 Advantage and 1 Feature, helped Caleb win the first order AAK Hydraulic Pilot operated Relief Valve with 1 Advantage and 1 Feature, helped Caleb win the first order
Mar .22.2023
Caleb is an old customer of AAK in Mexico and has purchased hydraulic cartridge valves from AAK for 4 years. At the end of last year, he emailed me to discuss 3 issues related to hydraulic pilot operated relief valves.
AAK Multifunctional Hydraulic Cartridge Valve, benefit all 3 Parties AAK Multifunctional Hydraulic Cartridge Valve, benefit all 3 Parties
Mar .21.2023
Monroe is from Sweden and has been purchasing hydraulic threaded cartridge valves from Ningbo for 3 years. In January of this year, their customer wanted to place a repeat order for one of their hydraulic unit equipment,
AAK new model E-SV12-41 Solenoid Cartridge Valve, Equivalent to HydraForce SV12-41 AAK new model E-SV12-41 Solenoid Cartridge Valve, Equivalent to HydraForce SV12-41
Mar .20.2023
Today, we are introducing our new model E-SV12-41 Solenoid cartridge valve, 4 port, 2 position, spool type. Equivalent to HydraForce SV12-41.