The hydraulic pressure control valve is high pressure resistant with over 2 million times of service life, AAK won the order back at a high price
Caspar is from Samhydraulik S.p.A. in Italy, mainly responsible for the purchasing of hydraulic valves. In March this year, Caspar requested AAK to sample 10 hydraulic pressure control valves by soonest. This sample order was quoted half a year ago. There must be a reason for him to be so anxious to place an order now. After several rounds of communication, it was learned that Caspar was cheated by the original hydraulic pressure control valve manufacturer.
In the second half of last year, their company developed a new hydraulic power unit, which requires a high-pressure hydraulic pressure control valve, and the durability should reach more than 2 million times. Caspar contacted more than 10 hydraulic pressure control valve manufacturers. Most of them are able to produce the hydraulic pressure control valves with high pressure resistance and durability of more than 2 million times. Only AAK hydraulic valve and other 2 manufacturers have quoted prices. After receiving our quotation, Caspar said that the price of AAK hydraulic pressure control valve was about 20% higher than that of other manufacturers, and then there was no further news. Until today, 6 months later, he was anxious to ask AAK to make samples immediately.
6 months ago, Caspar selected another hydraulic pressure control valve manufacturer to make samples. 5 weeks later, their new hydraulic power unit was successfully tested and the equipment was expected to be popular. Caspar asked the original hydraulic pressure control valve manufacturer to hurry up to prepare materials, but the manufacturer wanted to raise the price by 40%. Because the valve spool material was hard, the cutting tools needed to be changed constantly, the production cost was increased, and the defective rate was also high. If without a price increase, the manufacturer refuses to produce the order. Caspar felt very helpless.
The boss was very dissatisfied with such a hydraulic pressure control valve manufacturer who raised the price at the last moment, and asked Caspar to find a new manufacturer. Caspar suggested that AAK can make samples. If the original price of AAK hydraulic pressure control valve can be maintained, 20% of the cost will be saved. 1 month later, AAK sent 10 samples of hydraulic valve pressure control valves. 1 week later, Caspar informed that the test was passed and 1,000 samples need to be produced immediately. Caspar also wants to know why AAK hydraulic valve pressure control valve can maintain its original price in the same 6 months, while the other manufacturer needs to increase it by 40%.
Most manufacturers of hydraulic pressure control valves do not pay attention to some details in the processing at the drawing stage, and only know after suffering in the sampling process.
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Kate, the buyer of Terex company, was asked by the head office last month to purchase a batch of hydraulic pressure valves within 3 months. She vowed to the owner that it would be completed in 2 months. As usual, Kate sent the hydraulic pressure valve inquiry to more than 10 hydraulic valve manufacturers she was familiar with, including American hydraulic valve manufacturers and Chinese hydraulic valve manufacturers. She chose 3 factories to provide hydraulic pressure valve samples for testing. After the test, the technical department informed that only the hydraulic pressure valve samples provided by American manufacturer were qualified. The trouble is that the price of the qualified hydraulic pressure valve exceeds 40% of the company's budget price. She has no authority to decide to use the products of this American hydraulic valve manufacturer. After discussion with the technical department, she learned that those unqualified hydraulic pressure valves are mainly due to the wear or fracture of the sealing ring after 15,000 times of impact during the durability test of the hydraulic pressure valve, resulting in the leakage of the hydraulic pressure valve. Only those hydraulic pressure valves that have not leaked for more than 40,000 times are qualified. She was very depressed that the quotation of the other 3 hydraulic pressure valves was within the budget, but the quality was unqualified. At this time, Kate realized why the company gave him 3 months to purchase. She hurriedly sent inquiry to new hydraulic valve manufacturers, and specially emphasized the need for hydraulic pressure valves with more than 40,000 durability tests. The trouble is that no hydraulic valve manufacturer gave her an offer. Kate realized the difficulty of procurement. She had wasted 3 weeks. Procurement was still in its infancy, and the technicians had been urging progress. After learning about Kate's purchase status, the colleague recommended her to contact AAK HYDRAULIC VALVE to try. When we received the hydraulic pressure valve drawing from Kate, we first gave a quotation. She told us very frankly that the price of AAK was 20% higher than that of other China hydraulic valve manufacturers, but 15% cheaper than that of the United States. She needed us to reduce the price greatly. We suggested providing the hydraulic pressure valve samples for testing first, and then discuss the price after passing the test. 2 weeks later, Kate informed that the test was qualified and AAK hydraulic pressure valve durability test had reached more than 40,000 times. She was surprised why AAK passed the hydraulic pressure valve durability test, while the other hydraulic valve manufacturers in China failed. AAK hydraulic valve was also eliminated by customers 2 years ago because the durability test of hydraulic pressure valve failed to meet the standard.
It took 3 months and 6 proofing adjustments to match the sample quality of hydraulic pressure control valve made in Germany. Finally, AAK passed the parameter test of hydraulic pressure control valve, and our hydraulic pressure control valve was affirmed by Eatonâ??s company. We became Eatonâ??s first supplier for hydraulic pressure control valve in China. In mid October last year, an agent of Eaton came to AAK HYDRAULIC VALVE and brought a sample of Eaton hydraulic pump with a purchase value of more than US$150,000.00, asking us to make a quotation. After we checked the product parameter requirements of the artwork, we declined the quotation because AAK is only good at hydraulic valve products. Compared with its domestic peers, most of the technologies of AAK HYDRAULIC VALVE were in TOP 1-6. We thought Eaton agent would not consider us again. However, after a month, he came again and brought a Vickers Series solenoid valve with a value of up to US$200,000.00. We directly said that we are not good at this kind of products and couldn't quote. Eaton agent saw that we rejected the products that AAK is not good for 2 times, he felt that AAK is different from other hydraulic valve manufacturers, and recognized the professionalism of AAK HYDRAULIC VALVE. For the 3rd time, he brought a sample of pilot hydraulic pressure control valve with very high precision and wanted to test the parameters with our pressure test bench. I realized that Eaton agent actually wanted to test our pressure test bench with his samples. It was the first time for us to encounter such a situation, the purchaser did not test the quality of AAK hydraulic valve, but tested the equipment producing hydraulic valves first. Being satisfied with our pressure test bench, he asked if we were interested in this pilot hydraulic pressure control valve, which was a hydraulic pressure control valve produced in Germany. After learning the parameters of the hydraulic pressure control valve in detail, AAK HYDRAULIC VALVE technical team discussed the artwork of the hydraulic pressure control valve. We were 90% sure to match the quality of this hydraulic pressure control valve produced in Germany. More than 20 days later, we sent the first approval sample of the hydraulic pressure control valve. The sample comments was that there was still a 12% difference between the accuracy of AAK hydraulic pressure control valve and that of German hydraulic pressure control valve. We were required to send the revised sample again. The whole proofing and approving process have been bumpy, the parameters were continuously required to be improved. The samples have been adjusted for 6 times, finally, it met the quality of the German hydraulic pressure control valve after 3 months.
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The service life of hydraulic flow control valve is more than twice that of the original manufacturer, Shirley has sent more and more inquiries to AAK Shirley comes from a hydraulic equipment company in the United States, who is an old employee of the company. She rarely fails in purchasing, and her cooperation with AAK is tepid. It was not until the cartridge hydraulic flow control valves purchased last year failed that she learned that AAK Hydraulic Valve was different from other hydraulic cartridge valve manufacturers, and now she is sending us more and more inquiries. At the beginning of the year before last, Shirleyâ??s company sold the hydraulic power unit for metal extrusion equipment. Less than half a year, customers complained that the pressure of the power unit was abnormal, and even went on strike. During after sales service, it was found that the leakage was caused by the serious wear of the hydraulic flow control valve sleeve, resulting in abnormal equipment pressure. The original hydraulic flow control valve manufacturer replied that under the high-pressure working condition of 450bar and high-frequency use, it is unavoidable for the hydraulic flow control valve sleeve to be worn and the only solution is to replace with new one for free, but 5 months later, the same problem occurred again. The customer was not satisfied and complained directly to the boss. The boss was surprised that an old hand like Shirley would stumble. After investigation, it was found that this hydraulic valve manufacturer who had cooperated for 5 years ignored the details of high pressure and high frequency. The boss asked her to change the manufacturer and replace those severely worn hydraulic flow control valves as soon as possible. Shirley thought of AAK, because at the beginning of the inquiry, AAK mentioned that this hydraulic flow control valve had special working conditions, if the material selection was not proper, it would be impossible to use it for 1 year or more. After learning of Shirley's procurement dilemma, AAK urgently produced 50 hydraulic flow control valves within 1 month for them to replace the current ones. 6 months after the trial order was delivered, Shirley informed us by email that the equipment installed with AAK hydraulic flow control valve was working well without any abnormalities, and I said there would be no abnormalities even in 1 year. Shirley admired the confidence of AAK Hydraulic Valve in quality, and ordered another 300 hydraulic flow control valves. Under the high-pressure condition of 450bar, to get the hydraulic flow control valve used in high frequency a service life of more than 1 year or 2million times, AAK Hydraulic Valve uses 3 advantages to exceed peers. 1. The valve sleeve of AAK hydraulic flow control valve adopts 18Cr2Ni4WA high-strength alloy carburized steel. During heat treatment, carburize at 900~920 , temper at 600~650
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Lucas is from a Canadian hydraulic equipment company. He found AAK hydraulic valves online last September. His first inquiry was the hydraulic pilot-operated pressure control valve. After 3 rounds of email communication, he placed a trial order for 20 pcs of hydraulic pilot-operated pressure control valves. I received the order so smoothly, but I didn't expect that AAK would almost take the blame for others in the first cooperation. At the beginning of last month, Lucas informed by email that there were problems with all 20 hydraulic pilot-operated pressure control valves provided by AAK. When the equipment was installed and debugged, the hydraulic system went on strike. This is the first time I have encountered such a complaint. AAK will do various tests on each hydraulic pilot-operated pressure control valve before leaving the factory, and deliver it only after it is qualified. I asked the engineer and the workshop to verify. It was proved that the programming and production of the hydraulic pilot-operated pressure control valves are completely consistent with the drawings provided by Lucas, so I can ensure that the samples of AAK hydraulic pilot-operated pressure control valves are qualified. Our engineers speculate that there may be a problem with the oil circuit design of the valve block system, but Lucas engineers believe that AAK is shirking the responsibility. So I suggest Lucas try the hydraulic pilot-operated pressure control valves of other manufacturers to debug. If the hydraulic system is still abnormal, our guess is right. Two weeks later, Lucas frankly told us that there should be a problem with the oil circuit design and asked us what good methods we had? The next day, Lucas sent us the video of equipment commissioning. Indeed, during the operation of the equipment, the speed increases when the cylinder of the hydraulic system is lowered, which is equivalent to the increase of flow, and the original set pressure of the hydraulic pilot-operated pressure control valve will also increase, resulting in the instability of system pressure. Therefore, it is inferred that the instability of pressure is caused by the thin oil passage of the hydraulic valve block in the system. We suggest that he send us the schematic diagram of the hydraulic system. After analysis, AAK engineers believe that the oil circuit design cannot match the working conditions of the equipment. AAK plans to design and process a new hydraulic valve block, and then installs the AAK hydraulic pilot-operated pressure control valves to debug the equipment. If it is not successful, AAK will not charge any fee for the hydraulic valve block. A month later, AAK sent out the newly designed hydraulic valve block. Lucas sent an email 3 days after receiving AAK hydraulic valve block. He informed that after installing the AAK designed hydraulic valve block and the hydraulic pilot-operated pressure control valves, the hydra
