Welcome to www.aakindustry.com

The 1 million times durability of hydraulic counterbalance valves, AAK quality benchmarked with SUN hydraulics, but the price was 30% cheaper

Views : 151
Update time : 2022-08-18 10:58:07

Last week, the German customer Thorsten sent an order for 1,200 hydraulic counterbalance valves, and said that only AAK and SUN hydraulic counterbalance valves passed 1 million durability tests among the 6 hydraulic valve manufacturers making the samples. However, the price of AAK was 30% lower than that of SUN, and the delivery time was faster.

 

In May this year, Thorsten’s company received an order for a batch of special hydraulic winches. The customer requested that the equipment be guaranteed for at least 1 year of service life. The engineer required that the durability test of the hydraulic counterbalance valve to be purchased by Thorsten must reach more than 1 million times. Thorsten found a local hydraulic counterbalance valve manufacturer to carry out the test. After 100,000 times, the O-ring wear affected the seal. After the sealing ring was replaced, the valve spool and valve body were worn and leaked again after 200,000 times, and the local manufacturer surrendered.

 

Thorsten had to find a manufacturer of hydraulic counterbalance valves with higher durability. In order to avoid wasting purchasing time again, the two schemes were carried out simultaneously. One is to purchase the original SUN hydraulic counterbalance valves, and the other is to find a factory for customized hydraulic cartridge valves. When Thorsten contacted AAK, I told him that the requirement of hydraulic counterbalance valves for 1 million times was not very high. How could local hydraulic valve manufacturer fail? Thorsten said that when testing this hydraulic counterbalance valve, the opening and closing cycle time is set to 5 seconds, the set pressure is 21 PMa, and the flow rate is 9L/min. The wear resistance of the sealing ring, valve spool and valve body is at least 50% higher than that of the conventional hydraulic counterbalance valves. This time, including AAK, there are 6 hydraulic valve manufacturers to make samples.

 

More than a month later, Thorsten said that among the 6 hydraulic counterbalance valve manufacturers, only AAK and SUN hydraulic counterbalance valves have passed the durability test for 1 million times, but the price of AAK is 30% lower than that of SUN. At the same time, AAK can provide a delivery time 4 weeks faster than that of sun. Thorsten especially wants to know why AAK is so strong. AAK hydraulic counterbalance valves are different from peers due to the following 3 points: 

 

1. AAK adopts Japanese special polyurethane rubber sealing ring for this hydraulic counterbalance valve. Under the special working condition required by Thorsten, the durability limit of rubber sealing ring is about 100,000 times only, while the wear-resistant and high-pressure resistance performance of ours is more than twice that of other rubber sealing rings.

 

2.    The 20CrNi2MoV high carburizing bearing steel imported from Germany adopted by AAK, combined with the carburizing pretreatment process and through the secondary quenching + cryogenic treatment + low temperature tempering process, has a microhardness of 237-247HV, and its wear resistance and contact fatigue performance have been improved by more than 3 times. Most hydraulic counterbalance valve manufacturers can not master the key of heat treatment even if they choose this steel.

 

3.    AAK has its own durability test equipment independently developed, combined with NFPA/T2.6.1 standard, each hydraulic counterbalance valve is tested and meets the standard.

 

AAK hydraulic counterbalance valves, benchmarked with SUN, you can also try a small order!

 

AAK HYDRAULIC CARTRIDGE VALVES (322) 2022-08-18

Related News
Read More >>
For Hydraulic Directional Control Valves with body made of 45 steel, why is AAK more durable than its peers? For Hydraulic Directional Control Valves with body made of 45 steel, why is AAK more durable than its peers?
Jun .06.2023
Kadin is from Turkey. They have many stores selling hydraulic cartridge valves in Turkey, and the market competition is very fierce. At the beginning of last year, Kadin needed to purchase a batch of hydraulic directional control valves benchmarking SUN.
Brazilian client checked with 7 China hydraulic valve manufacturers in 3 months, and finally found the equivalent model of HydraForce SF08-20 at AAK Brazilian client checked with 7 China hydraulic valve manufacturers in 3 months, and finally found the equivalent model of HydraForce SF08-20 at AAK
Jun .05.2023
Today, AAK posted a solenoid cartridge valve E-SF08-20, benchmarking HydraForce SF08-20. It is a solenoid-operated, 2 way, normally closed, piloted poppet-type, screw-in hydraulic cartridge valve
China Hydraulic Solenoid Valve Manufacturer AAK, eats as much as its capacity, following the Chinese tradition of "making a fortune without fanfare” China Hydraulic Solenoid Valve Manufacturer AAK, eats as much as its capacity, following the Chinese tradition of "making a fortune without fanfare”
Jun .04.2023
Recently, in Ningbo, the hometown of China hydraulic solenoid valve manufacturers, there was a story about China hydraulic solenoid valve manufacturer expanding production line for new orders, but orders did not come finally.
China Hydraulic Solenoid Valve Manufacturer AAK, selects full-time engineers with shortcomings China Hydraulic Solenoid Valve Manufacturer AAK, selects full-time engineers with shortcomings
Jun .03.2023
Yesterday when I arrived at the workshop, a colleague said that engineer Mr. Li had undergone significant changes, which surprised and comforted me. 2 years ago, China hydraulic solenoid valve manufacturer AAK wanted to hire a full-time hydraulic solenoid valve engineer.