Valves

Diego, from Spain, has been engaged in the procurement of hydraulic valves for 5 - 6 years, and has been successful. But the hydraulic cartridge needle valves purchased from a local manufacturer stumped him. At the beginning of last year, their company urgently purchased a batch of hydraulic needle valves to be installed on a batch of hydraulic equipment that customers urgently need. Diego purchased the hydraulic needle valves from a local manufacturer. 3 months after the equipment was sold, the customer complained that the equipment was unstable. After testing the hydraulic system, it was found that when the hydraulic needle valve spool was in the fully closed position, it was stuck radially, because the coaxiality deviation between the valve spool and the valve body was 2μm, 3μm, or 4μm. That is, the standard deviation is not up to standard. The original manufacturer of the hydraulic needle valves advised that this is an individual and can be replaced, but there are more and more complaints later. Diego knows that the coaxiality deviation must be completely solved. After discussion with engineers, Diego defined the coaxiality accuracy of hydraulic needle valve spool and valve body within 2μm. Based on this quantification, Diego contacted more than 10 hydraulic needle valve manufacturers, but none of them offered quote for a week. The customer is pushing the after-sales service process. Now there is no solution. Diego is under great pressure. Diego found AAK on Google, noticed that AAK had solved the coaxiality problem for customers, and left a message to us: Can you control the coaxiality error of the hydraulic needle valve within 2μm? At the sight of such messages, it was assumed that he had encountered difficulties in purchasing hydraulic needle valves. After communication, it was learned that even he purchased from Spain hydraulic valve manufacturer, coaxiality deviation could not be completely avoided. When he learned that HydraForce has been a loyal customer of AAK for 9 consecutive years, AAK hydraulic valves have also served 3 Fortune 500 enterprises, and there are customer cases that coaxiality problem has solved, he asked about the development time and cost, which means he wanted to try the order. I always think that in the field of industrial products, customers do not buy your products, not because of distance or high prices, but because they do not trust you. 50 days later, AAK sent 30 hydraulic needle valve samples. 4 weeks later, Diego informed that AAK hydraulic throttle valves had been installed on the equipment and the overall operation was normal. I replied that within 18 months, there was no after-sales concern. Last week, Diego said in an email that the AAK hydraulic needle valves have been installed in the equipment for more than a year, and there is no customer feedback on what function is affected by the coaxiality. The coaxiality error of AAK hydraulic throttle valve is controlled within 2μm, and lead the industry with 3 aspects: 1. The valve spool and valve hole of the hydraulic needle valve are finely machined. The Swiss high-precision honing machine is used, and equipped with a diamond oilstone. 2. 30 years of technicians, specially assigned for special machine, picky on precision. 3. Coaxiality measuring instrument, cylindricity measuring instrument, profiler, are used to detect the coaxiality comprehensively. AAK hydraulic needle valve, coaxiality error within 2μm, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-needle-valves-aak388

Francis is from a hydraulic equipment company in Spain, and has been purchasing smoothly for 5 years. Some time ago, he was stumped by a hydraulic cartridge proportional relief valve. The hydraulic cartridge proportional relief valve used in their customized hydraulic power unit was made by a local cartridge valve manufacturer. The equipment commissioning was not smooth, and the hydraulic cartridge proportional relief valve responded slowly and leaked when the system was in a large flow state. The original manufacturer tested the accuracy of the hydraulic cartridge proportional relief valve, and all of them reached the standard. The engineer asked the original manufacturer to optimize the structure of the hydraulic cartridge proportional relief valve, but no result after 1 week. Francis contacted several other hydraulic cartridge proportional relief valve manufacturers, but there was still no solution. Francis was worried. Francis noticed AAK hydraulic valve in B2B and left us a message: 1. The hydraulic cartridge proportional relief valve responds slowly, and there is a source of leakage? 2. Can AAK optimize the structure of the hydraulic cartridge proportional relief valve? 3. What is the cost and lead time of customized hydraulic cartridge proportional relief valve? After communication, we learned the situation that Francis purchased the hydraulic cartridge proportional relief valves. According to the drawings of the original hydraulic cartridge proportional relief valve, the samples of the original manufacturer, and the requirements of equipment working conditions, AAK engineers judged that the problem was probably caused by structural hazards, and AAK was 90% sure to optimize the original structure. Francis asked for AAK samples. After 45 days, AAK sent 12 samples of hydraulic cartridge proportional relief valves. 1 month later, Francis informed us by email that with AAK hydraulic cartridge proportional relief valve, the trial run of the equipment was smooth, and the customer was satisfied and planned to place a large order. Francis asked us to wait for the good news. AAK hydraulic cartridge proportional relief valve can realize large flow rate, fast response speed and no leakage. For these 3 advantages, we have made 3 optimizations on the structure: 1. The valve body of the hydraulic cartridge proportional relief valve is provided with a stepped inner hole. The side wall is provided with a stepped port. The valve cage is connected to the lower part of the valve body. On the side wall of the lower part of the valve cage, there is a flow passage cavity between the valve body and the valve body. The upper part and the inner hole of the valve body form an oil return cavity and a flow passage hole. 2. One end of the valve spool of the hydraulic cartridge proportional relief valve is slidably arranged in the inner hole of the valve cage, which can control the on-off of the through flow hole. In the oil return chamber, the lower part of the spring is against the upper part of the valve spool, and the upper part forms a control chamber with the valve body. The force on the valve spool can be changed according to the pressure of the control chamber. 3. The valve body of the hydraulic cartridge proportional relief valve is also equipped with an electric proportional control system. Its oil inlet is connected to the flow passage chamber, and its oil outlet is connected to the oil return chamber. The pressure of the control chamber is changed by changing the voltage control signal of the electric proportional control system. The optimized hydraulic cartridge proportional relief valve uses a small flow electric proportional control system to change the pressure of the control chamber, set the pressure of the spring assembly, realize the large diameter setting of the valve port, increase the flow capacity, and have a fast response speed. The valve is line sealed and has no leakage. AAK hydraulic cartridge proportional relief valve, has 3 advantages, with large flow, fast response and no leakage, you can also try one small order! https://www.aakindustry.com/info-det , ail/relief-valves-aak446

The customer from Brazil said that due to domestic political reasons, his purchase from Chinese hydraulic cartridge valve manufacturers has been held, but promised to come to me as soon as there is an inquiry for hydraulic cartridge valve. The customer from Turkey said that due to the impact of the huge earthquake, the purchase of hydraulic cartridge valves from Chinese manufacturers has decreased a lot, but it is estimated that the normal situation will be restored in 2 months. Although these 2 markets are very important to Chinese hydraulic cartridge valve manufacturers, AAK also has inquiries from customers in the United States, Canada, South America and Europe. I do 3 things every day: read more, work more and learn more. Working and learning are my 2 sources of motivation, and the only reason why AAK stands out from Chinese hydraulic cartridge valve manufacturers. Some people like to see practical information very much. These Chinese hydraulic cartridge valve manufacturers in Ningbo also want me to share it. In fact, no matter how good other people share practical information, if you see it but will not really do it, at most, you will be touched at that time, and everything will return to the original state after 60 seconds. This is the truth of the brain, not your intention. Of course, what is slightly better than practical information is the professional books related to Chinese hydraulic cartridge valve manufacturers, but this also varies from person to person. My motivation for learning and practice comes from 2 aspects: 1. A strong spiritual awareness to change the Chinese hydraulic cartridge valve manufacturer. Of course, the Chinese hydraulic cartridge valve manufacturer here refers to AAK, not other Chinese hydraulic cartridge valve manufacturers. 2. The book has taught me how to do well in the production of hydraulic cartridge valves and how to earn money from hydraulic cartridge valves. With the support of these 2 things, I will have the strength to learn and work specifically. As for the practical information on the Internet, they will play a role of 2% at most. Take a look at your online collection. Maybe you have collected a lot, or you don't even look at it. This action is a psychological placebo. The only reason why we can continue to work is the sense of achievement. For example, there are inquiries from customers every day and orders every week, and why customers choose AAK from so many Chinese hydraulic cartridge valve manufacturers In fact, many times, it is useless to only know and understand. You can easily buy a copy of the Working Principles of Hydraulic Cartridge Valves, but it is difficult to produce hydraulic cartridge valves. If I can't make a result, it's worse than I don't understand and don't know. Because you have the knowledge to compete with the peers of Chinese hydraulic cartridge valve manufacturers everywhere, and the results of the competition, you can't find a place among the peers of Chinese hydraulic cartridge valve manufacturers. I, a small boss in the hydraulic cartridge valve manufacturing industry, write 7 tweets a week, each of which is a customer case. Solve a specific problem of hydraulic cartridge valve innovation, or manufacturing quality, or optimization, or customization, as well as various difficulties and complications in the production process of Chinese hydraulic cartridge valve manufacturers. Each tweet will be posted in 30 B2Bs every day. Not long after I started to write the tweet, I found that the peer of the hydraulic cartridge valve manufacturers in China was copying. I saw it, but kept quiet. Later he continued to copy. I continued to write, but after a period of time, I didn't see him copy it. Then until now, he sometimes asks AAK to produce the hydraulic cartridge valve he couldn't handle. At that time, my colleague asked me: What should we do? The peer of Chinese hydraulic cartridge valve manufacturer is copying us. My answer: Only when it is valuable can it be copied by the peers of Chinese hydraulic cartridge valve manufacturers. I'm not afraid of copying, so I don't care about his copying. In this way, under the shock of my saturation, the peer of Chinese hydraulic cartridge valve manufacturer not only “lay flat”, but also gave me orders for hydraulic cartridge valves that he is not able to produce. I need to write tweets every day. I completely forget the word "persistence". Even if you inspire yourself every day, it's useless, and you can't persist. Where is the key? There should be a sense of achievement, even a small sense of achievement, such as customer inquiries. If there is no sense of achievement, then even the immortals cannot persist. Adherence is anti-human and should be supported by a sense of achievement. The peers of Chinese hydraulic cartridge valve manufacturers sell on the ground, and AAK will do online sales. I jokingly call this a dimensional reduction attack. If the peers of Chinese hydraulic cartridge valve manufacturers are also online, AAK will do it every day. I jokingly call it a saturation attack. Let Chinese hydraulic cartridge valve manufacturers despair, give up imitation, give up plagiarism, and “lie flat”. AAK hydraulic cartridge valve, has no peer. https://www.aakindustry.com/info-deta , il/cartridge-valve-manufacturer-aak520

Last week, hydraulic manifold manufacturer AAK wanted to hire an engineer to do sales. The young man had worked as an engineer in other hydraulic manifold manufacturers for 3 years, and when he met me, he said the first sentence: I don't have anything, can sales of hydraulic manifolds be successful? What is behind this problem? Actually, can I get something for nothing? What should I do to get something for nothing? I really want to work as a salesperson at hydraulic manifold manufacturer AAK, but I always feel like I have no ability or talent. This type of question is equivalent to saying, 'I don't have core competitiveness, but I also want results.'. For example, most hydraulic manifold manufacturers only know how to copy, but they want orders. So I want to say, why? This world is not interesting at all, there is no overnight wealth, nor is there a counterattack. The overnight fame you see is behind everything you cannot see, the accumulation of night and night. To become better, one can only squat solidly every day, step on plum blossom stakes, and establish their true core competitiveness. There is no shortcut for hydraulic manifold manufacturers. The truly difficult thing is day after day. Someone always wants to become rich overnight and find the secret to winning with one move, because it is so rough, fast, and direct. Life is more than one choice, more than one battle. We have also seen many cases of rapid death after consuming stimulants. For hydraulic manifold manufacturers, if they really want to succeed, they can ask "How can I establish my own core competitiveness and increase my chances of success?” Hydraulic manifold manufacturer AAK posts tweets or videos on its website every day, but some colleagues complain that this path is too difficult. Is there an easier one? The hydraulic manifold industry is too complicated and laborious. Would it be easier for the neighboring industry? Such complaints are like saying, 'Where do I go without putting in too much effort?'? Like most hydraulic manifold manufacturers saying,” where can I make easier profits?” To be honest, there are, but very few. In all walks of life, what should be difficult is difficult. Don't think others are "easy" just because you work hard. Because the so-called 'easy' is often only in the hands of a few people. Don't ask, 'This road is too difficult, is there an easier way?'. If hydraulic manifold manufacturers really want to find an easy path, they should ask, "Have there been any changes in the hydraulic manifold industry recently? Are there new emerging technologies, and have we actively followed up?” Some hydraulic manifold manufacturers' sales sometimes complain that this customer is too difficult to handle. “What should we do? This hydraulic manifold is really stable, and engineers feel that it far surpasses their competitors in the market. That customer is pushing the price down very hard. Alas, the current customers are really getting harder to serve. Such a good thing is really not expensive.” This type of problem is equivalent to saying that I have done it well enough and the customer is not aware of the goods. Hydraulic manifold manufacturer AAK wants to say: don't think that way. If you haven't found the wrong customer, they think the price is expensive, and there are often only two reasons. Firstly, he believes that this hydraulic manifold is not worth spending so much money on. Secondly, the hydraulic manifold may cost him so much money, but your hydraulic manifold is not worth it. As long as customer think that it's not worth it, it's really not worth it. The only solution is to provide enough value to make him feel truly worthy from the bottom of his heart! If the hydraulic manifold manufacturer really wants to solve the problem, ask "What kind of value should I provide in order to make customers feel that it is truly worth it.” In recent years, those stable and precise channels have gradually disappeared. Dividends turn red sea, profits become thinner, and competition becomes increasingly fierce. The more we reach this point, the more we actually have to do more difficult things and take more difficult paths. The easier road you take, the narrower it becomes. The more difficult the road is, the wider it becomes. Hydraulic manifold manufacturer AAK, with more real thinking and less fake problems. AAK HYDRAULIC VALVES (717) 2023-11-18 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak71 , 7

Manufacturer'S Direct Sales Dust Collector Rotary Valve/Quick Disassembly Type Changzhou Changhong Xianglong Machinery Technology Co.,Ltd.is a specialized company engaged in the research and production of air sealing machine,starlike material handling equip- ment,rotary valve,and electrical air lock.It has been committed to the research and development of these products over the years.It has a complete of technical force and advanced testing method for the research and development,design and manufacturing,and is a factory with the most similar products and varieties in China.And it has the quality assurance system for the design,develop- ment,production and service. The company has the products of air sealing machine,rotary valves,and starlike material handling equipments with about 50 models in total like TGF.ZGF series,ZGFWE.ZGFWF series,and XGF and hundreds of parameters.It can provide valves with several configurations by adopting same design platform,and through different combination of standard assembly and standard design. The products can be made of cast iron,carbon steel,stainless steel etc,thus can meet the requirements of different industries,different mediums,and different working conditions.The products can be widely applied to different industries such as grain,food,fodder,chemical,petro- chemical,pharmaceutical,drying,environmental protection and dedusting etc. The company,insisting on the tenet of “Honesty,Quality First,and Customer Satisfaction”,will provide the most practical and beneficial products,and comprehensive after sales service for cus-tomers.

When I train new employees in the sales department, I always emphasize developing integrated hydraulic cartridge valve customers, just like falling in love with the person I love once. After achieved the business of integrated hydraulic cartridge valves, it needs to operate integrated hydraulic cartridge valve orders like marriage, which seems difficult to understand. Let me tell you a small story. My friend's children, Mr. Li and Miss Zhang, got engaged at the end of last year. At the engagement scene, they drafted a Certificate of exemption from “death”, each holding one, and agreed that no matter what happened, they would forgive each other once. But last week, due to the issue of dowry (in China, bride can request dowry from groom), the two families fell out, and Mr. Li decided to break up with Miss Zhang. Miss Zhang took out the certificate of exemption from “death”, hoping to give each other another chance. Young man Li angrily said, 'This certificate is useless!' This small story sparked two thoughts for me: 1. Is marriage maintained by emotions or by contracts and responsibilities? 2. Is the operation of integrated hydraulic cartridge valve orders maintained by customer relationships or by contracts and responsibilities? In ancient Chinese marriage, neither the man nor the woman had seen each other before marriage, but after marriage, the vast majority of their lives were very good, and the couple was very loving. No matter who the man standing next to her is, this woman will respect and love him. No matter who the woman around him is, this man will spoil and protect her. One is a good wife, and the other is a good husband. In fact, their hearts are more about respecting the marriage contract and striving to fulfill their responsibilities. In the process of slowly getting along, deep emotions develop. This is the Chinese people's understanding of marriage in the past: as long as they get married, everyone needs to create a good life. Now, China has introduced Western cultural concepts, and many cultural people believe that the foundation of marriage is to have emotions first. Emotion is a thing that comes and goes freely, it can deceive others, but it cannot deceive oneself. So the exemption contract between young man Li and girl Zhang is just a piece of paper in the understanding of emotional priority. There are more and more integrated hydraulic cartridge valve manufacturers in Ningbo China, but the vast majority of them only supply in the domestic market and are skilled in customer relations, gift giving, dining, kickbacks, and completely copying the domestic rule to deal with foreign buyers. In fact, these manufacturers of integrated hydraulic cartridge valves, who accompany customers to drink alcohol, are less sweating on the manufacturing quality of integrated hydraulic cartridge valves. Based on this analysis, the above two thoughts seem to have answers: 1. In the choice of marriage, finding a responsible and good man or woman is much more reliable than finding a man or woman who loves and has feelings for you! 2. In the selection of integrated hydraulic cartridge valve suppliers, finding a responsible and reliable manufacturing quality integrated hydraulic cartridge valve supplier is much more reliable than finding an integrated hydraulic cartridge valve supplier who always just says "there are no problems"! AAK integrated hydraulic cartridge valve, treat customers who come for consultation with a fall in love romantic mindset, treat customers who have placed orders with the cognition same as a marriage. AAK HYDRAULIC VALVES (608) 2023-06-18 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve-suppliers- aa , k608

Daniel is a purchaser of Liebherr branch in Germany. He is responsible for the procurement of hydraulic components. He has done an excellent job some time ago and has been praised by his supervisor for many times. Before the shopping season, he wanted to relax and planned to go on vacation with his family next week. A phone call from the boss disrupted all his plans. A major dealer in Sweden asked for help for a excavator produced by their company within 1 week . His engineer came to the user for routine maintenance and found that there was oil leakage in the hydraulic system. After pressure test, it was found that there was oil leakage in the hydraulic check valve, and 12 excavators had such faults. Daniel hurriedly contacted the American supplier for this hydraulic check valve, and got the reply that it was too cold in Sweden at this time. For such high-frequency operation, even if the hydraulic check valve was replaced, it was estimated that the hydraulic check valve would still leak oil 1 week later. Unless more low temperature resistant sealing rings are used, this will take time to test, but the finishing time is to be determined. Daniel was so helpless, he had to find a new hydraulic valve supplier. Daniel asked several local hydraulic valve manufacturers. They either didn't have time to produce or require over 50pcs MOQ. After knowing these situations, the supervisor asked Daniel to give the dealer a plan that can be implemented within 10 days. Daniel had to cancel the vacation. Daniel thought of AAK HYDRUALIC VALVE who he had contacted for inquiry before. He emailed us to ask whether we can produce the hydraulic check valve for the excavator, which needs to be resistant to low temperature. According to the drawings and working conditions provided by him, we advised that it takes 20 days to customize. All our existing hydraulic check valves are not close to this size. Daniel reiterated the hydraulic check valve needs to be low temperature resistant, and frankly told us what they are currently experiencing. I answered directly that the core lies in the low temperature resistant sealing ring. Daniel felt that maybe AAK could solve this problem. After 18 days, we sent a sample of hydraulic check valve. The test results proved Daniel's feeling. The parameters passed the test and there was no oil leakage at low temperature. The order for 12 hydraulic check valves was also easily confirmed. Daniel's hanging heart can finally be put down. Daniel asked why American hydraulic valve manufacturer needs time "to be determined" to test, and we solved it in 18 days. Why German hydraulic valve manufacturer is unwilling to do this small quantities, but it is OK for AAK hydraulic valve. At the same time, the price of AAK hydraulic valve is cheaper than that made in Germany and that made in the United States. The zero leakage hydraulic valve not only has strict requirements on accuracy, but also strict requirements for the sealing ring due to different media or different scenarios. The sealing ring not only needs to be sealed, but also needs to automatically improve its sealing effect with the increase of the pressure of the hydraulic oil. It also needs not to leak under the harsh working environment such as low temperature or high temperature. 1 year ago, a Russian customer of AAK hydraulic valve put forward the requirement of low temperature resistance. We spent 6 months, experienced 3 failures and 6 seal ring material tests, and innovated a seal ring polymerized with polyurethane elastomer and special rubber from the perspective of friction coefficient. Its low temperature critical point is - 45℃, and its wear resistance, oil resistance, fatigue resistance and vibration resistance can meet high-frequency operation. It was mass produced 1 year ago. AAK delivered 12 hydraulic check valves to his dealer. After all installation and commissioning, they worked continuously for 2 weeks without abnormalities. The Swedish dealer was very satisfied with the high standard after-sales service provided by Liebherr branch. Daniel was very happy. His supervisor gave him special permission to spend more days with his family. AAK zero leakage hydraulic check valve was delivered to Liebherr. You can feel at ease to have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-check-valve-aak117

In July this year, Bowen, an Australian customer, visited 5 hydraulic valve factories before and after, and made samples of hydraulic relief valve with ±1μm inner hole for 3 times, but none of them reached the accuracy requirements. AAK sent samples and met the standard for the 1st time, Bowen finally chose to cooperate with AAK.   The inner hole accuracy is not enough, which is mainly caused by the different built-in equipment of honing machines equipped by many hydraulic valve manufacturers. Conventional honing machines use diamond reamers., Because the main cutting part of the diamond reamer is at the tool head, the tool head wears quickly. After the head is worn, it is very easy to cause the size of the hole bottom to be small, resulting in the poor cylindricity of the whole hole and affecting the accuracy. This is the key to the 5% accuracy error. Many hydraulic valve manufacturers are not aware of this key point.   Bowen, a purchaser from a hydraulic valve company in Australia, has an inquiry for a special hydraulic relief valve, and the inner hole accuracy must be controlled within 1μm. Bowen checked with the original hydraulic valve supplier, and got reply that only the hydraulic valve manufacturer equipped with high-precision honing machine is able to make the hydraulic relief valve with 1μm inner hole accuracy. According to the equipment configuration, Bowen has contacted with more than 10 hydraulic valve manufacturers, determined to visit 5 hydraulic valve manufacturers, and asked 3 powerful factories to sample the hydraulic relief valve. After testing and comparing the samples received from these 3 hydraulic valve factories, all failed to meet the standard. Bowen asked the manufacturer with the highest accuracy to continue to improve the proofing, and there is still ±0.1μm gap. The factory gave up and introduced AAK HYDRAULIC VALVE to him, maybe AAK can do the hydraulic relief valve with ±0.1μm inner hole accuracy.   According to his hydraulic relief valve drawing, we advised that we can send 1pc hydraulic relief valve quality sample after 10 days. 5 days after AAK successfully sent the hydraulic relief valve sample, Bowen informed that the accuracy met the standard. He wanted to know why so many hydraulic valve manufacturers could not achieve ±1μm inner hole hydraulic relief valve, even if the hydraulic valve manufacturers promised to do so and they also have high precision honing machines, but several proofing did not meet the standard. How did AAK hydraulic valve achieve it?   Honing machine is really helpful for the machining of high precision inner hole. Due to different equipment configuration, not every hydraulic valve manufacturer can produce the hydraulic relief valve with ±1μm inner hole accuracy. Different from conventional hydraulic valve manufacturers, AAK adopts sintered diamond tools, equipped with 15 tool position tool magazine and automatic tool change mechanism, which can automatically change tools and add deburring tools. At the same time, it has XY axis worktable, which can automatically change the hole for porous work pieces. At the same time, we have installed an online measurement system in the machine tool to automatically detect the initial diameter of the hole. The system also detects the hole distance, which can automatically alarm abnormalities and 100% eliminate human errors. Bowen's doubts are completely eliminated and asked us to do preparation for material. After he confirms the order with the customer, he will start placing order for this hydraulic overflow valve.   The peers can not guarantee high precision even with the same equipment, but AAK hydraulic valve has always been the leader in precision. You can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-relief-valve-aak116

In March this year, the sales manager of Caterpillar received a phone call from a Spanish customer complaining that several excavators produced by their company had small start-up faults. The repairman judged that the hydraulic system leaked oil, which should be caused by the leakage of the hydraulic check valve. The customer asked them to replace the hydraulic check valve as soon as possible. This customer accounts for 40% of Caterpillar's sales. Although it has passed the maintenance period, they must help the customer solve the problem. The original hydraulic valve supplier said that for the hydraulic check valve under this working condition, there can only be no leakage for 2-12 months. In extreme cases, it may be less than 2 months. The customer was disappointed with such a maintenance plan. The boss asked Mark, the purchasing manager, to find a solution satisfying the customer. Mark contacted more than 10 hydraulic valve manufacturers, but did not get a satisfactory reply. He boss urged him to make a new plan twice a day. Mark thought of AAK HYDRAULIC VALVE he had contacted before. Maybe AAK can do some help. He firstly asked us why so many hydraulic valve manufacturers can't achieve 0 leakage for more than 12 months for this style of hydraulic check valve? The hydraulic check valves often use steel ball or metal cone slide valve to contact and compress with the orifice of metal valve seat under the action of spring and fluid pressure to prevent the reverse flow of liquid, but it is difficult to achieve absolute seamless butt joint in the cutting of metal contact surface. Especially under the special working condition of this customer, it is more difficult to avoid leakage. This hydraulic valve manufacturer who has insured for 2 months is already great. Mark thought that AAK HYDRAULIC VALVE could not produce a hydraulic check valve with 0 leakage for more than 1 year, and asked how long we could insure at most. AAK can produce hydraulic check valve with 0 leakage for more than 12 months. If there is no leakage within 1 month, and if subsequent maintenance is in place, the hydraulic check valve can be 0 leakage for 24 months. Mark was surprised at our reply and thought we were joking. Let's talk about it with facts: AAK will send the hydraulic check valve samples within 20 days, you test the hydraulic check valve first, and we will then discuss it after the test. After 15 days, AAK sent the hydraulic check valve samples to Caterpillar. Their engineers conducted internal test first, and there were no abnormalities in many tests. Their after-sales personnel took the samples directly to the customer's construction site for on-site installation and commissioning. It worked continuously for 12 hours, and everything was still normal. The customer was very satisfied with Caterpillar's after-sales service. The boss was also very happy and asked Mark to hurry up to purchase. ark was curious how AAK achieved the hydraulic check valve with 0 leakage for more than 12 months? After receiving the drawings, AAK fine tuned the structure of the hydraulic check valve in the original design without adopting the traditional sealing design. A special soft sealing ring is installed between the outside of the boss of the valve seat and the end face of the valve spool. At the same time, the inner diameter of the soft seal ring is less than the diameter of the boss, rather than the traditional diameter more than that of the boss. When the hydraulic check valve is closed, the soft sealing ring will deform under the action of hydraulic pressure and compress the contact sealing surface between the metal valve spool and the metal valve seat to achieve 100% sealing and ensure 0 leakage. Last week, Mark sent us an inquiry for a new hydraulic valve. Incidentally, he said that since the Spanish customer installed their excavator with AAK hydraulic check valve, everything is normal. The customer has been purchasing other styles of excavators from his company. The boss is more and more appreciative of him now, and assigned all important purchases to him. AAK hydraulic check valve, zero leakage, pay attention to, welcome to have a small try if you need a new and top hydraulic valve manufacturer in Ningbo. https://www.aakindustry.com/info-detail/hy , draulic-check-valve-aak115

Recently, when chatting with several brother customers Felix and Carson, they asked me why the same model of hydraulic valve spool, AAK has higher precision and stronger sensitivity than its peers. This is a good question. I smiled and said: you may not have a comprehensive understanding of AAK hydraulic valve. For all types of hydraulic valve spools, AAK is subject to strict quality control. Under the condition of ensuring that the spool is suitable for the service conditions, we will select the most appropriate tool steel (40Cr, Cr12MoV, 12CrNi3A, 18crniwa and GCr15, etc.) according to the customer's parameter requirements and service scenarios. 6 major processing processes and 6 major parameters are used. This technology has led the industry, we are not satisfied with these static data, but also need dynamic spool. Since the valve spool needs to move in the valve body, the clearance between the valve spool and the valve body should not only ensure good sealing, but also ensure small movement resistance. Therefore, the matching clearance between the valve spool and the valve body is the top priority affecting the use of the valve spool. The following are the tolerances and matching clearance dimensions of the valve spool and the valve body produced in large quantities by AAK in the actual production process: Diameter Valve body tolerance Spool tolerance Minimum clearance Maximum clearance 6mm ±0.006mm ±0.004mm 0.0025mm 0.0125mm >6-12mm ±0.0075mm ±0.005mm 0.0050mm 0.0175mm >12-20mm ±0.01mm ±0.006mm 0.0050mm 0.0233mm >20-25mm ±0.0125mm ±0.0075mm 0.0125mm 0.0325mm When the reciprocating or rotary valve body is matched with the valve spool, we AAK generally use the minimum clearance, but the specific processing parameters should also be determined according to the customer's parameter requirements and use scenarios, so as to ensure that the hydraulic valve does not have any leakage, valve stuck and other unexpected working conditions. During the processing and manufacturing of valve spool, AAK also strictly considers the following aspects, and will check and test each valve spool when necessary, so as to ensure the high quality and reliability of valve spool. 1. Hydraulic power on hydraulic spool 2. Pressure and flow characteristics of hydraulic valve spool 3. Flow coefficient of hydraulic valve spool 4. Leakage of hydraulic valve spool 5. Stability of hydraulic valve spool 6. Vibration of hydraulic valve spool 7. Cavitation of hydraulic valve spool After listening, they admired AAK's rigid attitude and trusted the quality of AAK hydraulic valve more. Using AAK hydraulic valve is reassuring, so AAK has always been their preferred hydraulic valve supplier in China. AAK hydraulic valve sticks to itself and high quality control. You can also have a small try. www.aakindustry.com https://www.aakindustry , .com/info-detail/hydraulic-valve-aak114

Recently, an IP from Germany left a message on the website of hydraulic cartridge valve manufacturer AAK: Can AAK process a hydraulic cartridge valve with the surface finish of the valve cage controlled within Ra0.2μm and with a dimensional accuracy tolerance within 0.5μm? I was a little pleasantly surprised to see this message because: 1. There are not many inquiries from German customers regarding hydraulic cartridge valves, although hydraulic cartridge valve manufacturer AAK has supplied more than 30 countries, this should be the third German customer's inquiry. 2. Not many customers seem to have special requirements for the surface finish of hydraulic cartridge valve cage. After 3 rounds of communication, I learned that Frank is a procurement engineer for hydraulic equipment company. Currently, he is in the trial stage to purchase from hydraulic cartridge valve manufacturers in China and is not very satisfied with the details of Chinese hydraulic cartridge valve manufacturers. Frank consulted 6 hydraulic cartridge valve manufacturers in China, but none of them was unable to guarantee his requirements on the valve cage. The order that Frank tried is a standard part of SUN hydraulic cartridge valves, but the requirements are higher than SUN's. AAK re- optimized the production process and equipped specialized equipment to ensure Frank's requirements for hydraulic cartridge valve cages. At this point, some of our old equipment, old technicians, are put to use. After 20 days, 30 hydraulic cartridge valves were sent out. 1 week after receiving the samples, Frank recognized the hydraulic cartridge valve cage processed by AAK, which met his requirements. We use a TOYODA cylindrical grinder from Japan to process the valve cage for this model. Although this grinder has been in AAK for 10 years and has a somewhat shabby appearance, it is the treasure of our veteran technicians, and we optimize the equipment every 2 years. Its stable grinding accuracy is the biggest advantage, not only high accuracy, but also stability, especially low vibration bed and high-precision feed mechanism, combined with specialized cutting fluid. The machined hydraulic cartridge valve cage has a clear contour and a surface finish of within Ra0.2μm, the dimensional accuracy tolerance is within 0.5μm. Why can the hydraulic cartridge valves provided by AAK meet the requirements of the German customer, while other 6 Chinese hydraulic cartridge valve manufacturers are uncertain? Because: 1. AAK adopts equipment from the Japanese military industry and also upgrades local functions. I don't know which hydraulic cartridge valve manufacturers in Ningbo often have these actions. 2. The experienced technician from hydraulic cartridge valve manufacturer AAK has over 30 years of industry experience. 3. For hydraulic cartridge valves with special requirements, AAK has the ability to re optimize production processes and pay attention to details. AAK hydraulic cartridge valves, meets special requirements, and German customers are purchasing it. You can also try it out. AAK HYDRAULIC CARTRIDGE VALVES (716) 2023-11-26 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak716

Tony is a purchasing manager of Italian Casappa company, mainly responsible for the purchasing of hydraulic pump components. Last October, Casappa developed a new hydraulic pump and planned to promote this new product at this year's exhibition. During the debugging, the output pressure of the hydraulic pump can not be established several times, which is a little troublesome, because the owner has sent all the invitations to the exhibition to the customers and grandly introduced the functions of this hydraulic pump. The R & D personnel checked and tested each component one by one. It is basically certain that it is caused by the instability of the pilot operated pressure control valve. The technical team dissected the pilot pressure control valve and found local friction marks on one side of the hole wall of the valve body. The diagnosis conclusion is that the main valve spool is stuck, which should be caused by the concentricity difference between the hole of the main valve body and the hole of the pilot pressure control valve body. The owner asked Tony to re purchase the pilot pressure control valve that meets the technical requirements, which must be solved within 25 days, otherwise he will leave because the exhibition is too important. Tony contacted the original hydraulic valve manufacturer and got a reply that due to equipment, he could not produce high-precision pilot pressure control valves with the exactly same concentricity. At the same time, he contacted a number of hydraulic valve suppliers and they basically replied that they could not do such a high precision pilot operated pressure control valve, which made Tony almost collapse. When Tony searched the hydraulic valve suppliers in Google, he found AAK HYDRAULIC VALVE. The details page of the hydraulic valve on AAK website made Tony feel that maybe AAK could have a try. He emailed us firstly to ask whether the concentricity of the pilot operated pressure control valve could be consistent. We need the detailed drawings, working conditions and parameters of his whole hydraulic pump to judge. After receiving all information from him, AAK technical team pondered the whole afternoon, with more than 95% confidence, and it would take 15-20 days to complete it. Tony said he was happy and uneasy. He was happy that some hydraulic valve manufacturer could try this high-precision pilot operated pressure control valve and has a high probability of success. He was uneasy that if AAK HYDRAULIC VALVE did not succeed in proofing, the time would be wasted. We understand his concern. We told him that the reason why we are not sure for 100% is that there is a data that can't be determined. If AAK HYDRAULIC VALVE failed in sampling, then he should not waste time in Ningbo area. We suggest that he also find a hydraulic valve supplier in Europe, so as to sample with AAK at the same time. 2 weeks later, we sent a sample of the pilot operated pressure control valve. 4 days later, Tony sent an email excitedly informing us that the pressure of the hydraulic pump was completely normal after using the pilot operated pressure control valve with the same concentricity from AAK. The owner was very happy that the exhibition would not be affected. 5 days later, Tony sent another email to inform us that the pilot operated pressure control valve provided by a well-known hydraulic valve company in Germany had also been successfully tested. AAK took 15 days to proofing, and the German hydraulic valve manufacturer took 25 days. At the same time, the price of AAK hydraulic valve is 10-15% cheaper than that of German hydraulic valve. He was surprised why AAK took less time to proofing and the price was cheap, but the quality of the hydraulic valve was benchmarked with the well-known brand in Germany. AAK has made the most typical improvement on the equipment. On the high- precision machine tool imported from Switzerland, it adopts high-speed interpolation technology to realize continuous feeding with small program segments, so as to make the control unit of the machine tool more refined. At the same time, the high-resolution position detection device is used to improve the position detection accuracy, and the position servo system adopts feedforward control and nonlinear control methods, plus with the most experienced engineers to test the accuracy of each process, so as to ensure the consistency of the concentricity of the pilot operated pressure control valve. Tony admires our innovation in equipment, especially our quality benchmarking the German brand. After some time, he privately informed me that the exhibition was a great success, and the owner was in a great mood. Tony was not only praised by the owner, but also upgraded to the general manager of purchasing dept. AAK pilot operated pressure control valve has become the best choice for Casappa. The customer purchased from AAK said that AAK pilot operated pressure control valve is benchmarked with the German brand. AAK hydraulic valve has no leakage, 3 of 500 Global Top Enterprises in Use. You can also have a small try. https://www.aakindustry.com/info-detail/pi , lot-operated-pressure-control-valve- aak113

A few days ago, a customer from India asked me to follow his process to develop an integrated hydraulic cartridge valve. I provided our technical solution, but he requested to follow his approach and emphasized that the customer is Party A, and as the supplier of the integrated hydraulic cartridge valve, Party B needs to cooperate unconditionally with Party A. I don't quite agree. I think there are no first party and second party in business, only both parties. Perhaps the vast majority of integrated hydraulic cartridge valve manufacturers have become accustomed to Party B, and in their thinking, there is always a psychological state of Party B. For example, for this integrated hydraulic cartridge valve order, I want to ask for an order from the customer. I want to sell the integrated hydraulic cartridge valve to someone else, as if I want to appeal to the customer. In the process of interacting with the customer, it appears to be a weak position. Think about it, a weak person's psychology, a weak person's image, how does it feel to interact with others? In fact, the other party will not sympathize with you, but instead, they will consider themselves as the first party. This thinking of the second party is not conducive to the integrated hydraulic cartridge valve manufacturer, and in fact, it is not conducive to the customers of integrated hydraulic cartridge valves. Previously, a client from the United States asked me, 'What is the relationship between AAK and him?'? My answer is: relationship between the teacher and the students, he was a bit surprised. Afterwards, he appreciated my definition very much. So what is the psychological state of teachers and students? Teachers must love and help students. For example, AAK integrated hydraulic cartridge valves are very willing to help target customers. From the inquiry and development stages, we have been thinking about customers. Teachers do not mean to be domineering and superior. What is a teacher? He hopes that students will learn well, do well, and have compassion. From the perspective of professional knowledge, students should lack some. In the process of interacting with clients, we treat them as students and ourselves as teachers. This kind of communication is relatively selfless. In general, integrated hydraulic cartridge valve buyers are not as professional as manufacturers. Integrated hydraulic cartridge valve manufacturers have a richer knowledge base in terms of manufacturing quality, process hazards, actual customer cases, and some technical details. Therefore, AAK is capable and willing to help customers solve their problems with integrated hydraulic cartridge valves. So, think about it. If we interact with customers in this way, we are helping them, not seeking them. With this guiding ideology and psychological state, the entire interaction is benign and beneficial to both parties. With this positional relationship between teachers and students, manufacturers of integrated hydraulic cartridge valves often provide many constructive solutions. This mindset has changed, actions have also changed, and of course, the results have also been better. AAK integrated hydraulic cartridge valve, without Party A and Party B, only both parties AAK HYDRAULIC VALVES (607) 2023-06-17 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak607

Halian, from Sweden, has been engaged in the procurement of hydraulic components for 5 years. She began to purchase hydraulic cartridge valves from Ningbo last year, and was upset by the first purchase for a hydraulic cartridge relief valve. At the beginning of last year, their hydraulic power unit failed due to the blockage of the hydraulic cartridge relief valve she purchased from Ningbo. The original hydraulic cartridge relief valve manufacturer reported that the hydraulic oil was not clean, but after replacement, the old problem occurred again in 5 months. Halian thought that the manufacturing quality of the original hydraulic cartridge relief valve was not up to standard, so she contacted a new hydraulic cartridge relief valve manufacturer. Halian found AAK in B2B and left a message: Can AAK solve the problem of hydraulic cartridge relief valve blockage? After communication, it was learned that the hydraulic cartridge relief valve she purchased from the cartridge valve manufacturer in Ningbo was easily blocked. According to the hydraulic cartridge relief valve samples from the original factory, there are damping holes, and there are elongated holes in the valve body, which are objectively easy to block. Can we remove damping holes and elongated holes? According to this idea, we fed back the plan to Halian. After 40 days, AAK sent 20 samples of hydraulic cartridge relief valves. Last week, Halian informed us via email that AAK hydraulic cartridge relief valve was installed on the equipment, and it has been 8 months since then. There is no blockage and no customer complaint. AAK hydraulic cartridge relief valve removes the damping hole and slender hole in the original structure, increases the flow area, improves the flow passage port, and uses conical spring. Such hydraulic cartridge relief valve has 3 advantages: stable opening, short unloading time and small power loss. 1. AAK hydraulic cartridge relief valve seat is a cylinder with one end open and one end closed, and the open end has external thread, and the closed end of the valve seat has external hexagonal head structure. Two springs and spring covers are installed in the valve seat in sequence, and the first spring is a conical spring with large end upward to ensure stable opening. 2. The upper end of the valve rod of the hydraulic cartridge relief valve is fixedly connected to the spring cover and has screws. The middle of the spring cover has a downward protruding rod-shaped body, and the second spring is sleeved on the rod-shaped body. The lower end of the valve rod has an overflow valve spool, and the lower end of the second spring is installed in the spring seat. 3. The oil replenishing valve spool with overflow valve port is set under the spring seat. There is an oil port between the oil replenishing valve spool and the spring seat. The valve rod passes through the overflow valve port. The oil replenishing valve spool and spring seat are in an integral structure. The oil replenishing valve spool has a ball sealing surface, and the overflow valve spool has a conical sealing surface. AAK hydraulic cartridge relief valve is non-clogged and has 3 advantages. You can also try it! https://www.aakindustry.com/info-detail , /cartridge-relief-valves-aak519