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With 12 years of observation, AAK talk about current hydraulic valve industry and compare differences between the superior and inferior factories

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Update time : 2021-06-30 10:20:22
In a chat with an American hydraulic valve customer some time ago, he mentioned that the current hydraulic industry in China really scared him, and it was difficult to find a hydraulic valve factory that made him really reassured. Some factories are good in quality, but the overall service awareness is too bad. Some factories have very good approval samples of hydraulic valves, but you are greatly surprised by the shipment goods. I said with a smile that each industry has its own happiness and misfortune. The core is to find a hydraulic valve factory with a positive mind and then he can treat you sincerely so that you can be relieved.
 
Let's talk about the current situation of the domestic hydraulic valve industry. I hope it can be a little helpful to the customers who need it. 90% of the factories only make conventional hydraulic valves according to their own ideas, basically without the stability and safety awareness of industrial products, and lack the spirit of craftsman. Their only purpose is to pursue the maximum profit, which is mainly reflected in the following aspects:
 
Material - use easy cutting, low loss of domestic 1214 steel for the valve sleeve, valve core, easy to cause hydraulic valve deformation, oil leakage; use carbon steel for the pressure spring, the recovery of spring is weakened, which easily affects the adjustment of hydraulic valve.
 
Production process - try to save the process and speed up the production. Regarding the size of the gap between the components is too large or too small, they do not very care. As long as the components can be assembled, they are almost regarded as the finished products for the shipment. No testing, assemble and use directly, then the hydraulic valves are easy to leak pressure and oil.
 
Accuracy - the most basic accuracy of the roughness of the mounting surface of the hydraulic valve is not stable within the standard range, the sealing of the hydraulic valve is weakened, and it is easy to leak. The clearance dimensions between the valve core and the inner hole of the valve body of the hydraulic valve are basically within 8 μm—22 μm. In this range, the hydraulic valve core is easy to be completely stuck. Due to limited equipment, they do not dare to think about the accuracy requirements, not mention to do.
 
Quality - the product is directly packaged and shipped without pressure test. They do not test the steel, or even do not do heat treatment, just have a superficial knowledge of the toughness, plasticity, fatigue resistance, hardenability, wear resistance and other comprehensive mechanical properties.
 
Certainly, there are also a few factories, such as we AAK Hydraulic Valve, is mainly positioned to do hydraulic valves for high re-buy rate, long-term business and high-end customers. Our purpose is to do a business, let customers receive sincere, let customers make more money than their peers, focus on the customer's re-buy rate, and make ourselves become the evergreen tree of the hydraulic valve industry. Thus, we have our own standards and requirements:
 
Equipment - lathes imported from Switzerland, honing machines imported from the United States, equipped with inductance measuring instruments to guarantee the accuracy.
 
Material – 100% imported material for core components. Each material is 100% tested and 100% heat treatment.
 
Production Process - Each batch of hydraulic valves must be debugged for 3 times to ensure the seamless connection between the inner hole and the valve core. Each finished product has been tested by the test bench and checked by a professional tester with 7 years' experience.
 
Quality - No re-buy is a failure. Adhere sincerity to the customer, adhere mindfulness to the quality.
 
I hope the above can help you. If you have any questions later, please contact us via email: [email protected]
 

 
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