Mechanical Hardware

The double flanged concentric soft sealing rubber lined butterfly valve D341X integrates some advantages of eccentric flanged butterfly valve and concentric wafer butterfly valve, filling a blank between eccentric flanged butterfly valve and centric wafer butterfly valve. The flow part of the valve body cavity is designed with vulcanized rubber, and the valve seat is combined as a whole with good sealing performance. It can be widely used in water, agricultural, municipal and other fields.   Centric Butterfly Valve PRODUCT RANGE Design: EN593 Size：DN50 up to DN1200(2”-48”) Material: GJS500-7, GJS400-15 Temperature: ≤80° Pressure：PN10, PN16 Face to face dimension according EN558 series 13 flange connection according to EN1092-2 Test standard：EN12266-1 Top flange：ISO5211 Actuator：Worm gearbox, Penumatic actuator, electric actuator. Application: Products are suitable for fresh water, sea water and sewage etc. treatment system   PRODUCT FEATURES Adopt the optimized plate shaft pin free connection, effectively avoid the hidden danger of plate shaft cone pin connection leakage, and facilitate the replacement of parts on site. The valve is lined with rubber, and the rubber is vulcanized directly on the body as the injection to ensure the permanent adhesion. The use of the adhesive layer will enhance the reliability of the Disai butterfly valve. 90° opening and closing, worm gear drive, small operating torque The optimized lining design and molding process can achieve perfect lining and internal sealing of valve body, and ensure the perfect realization of valve plate seal and overall flange gasket seal. Bidirectional sealing, excellent performance, superior parts processing performance Valve plate and seat through the overall spherical seal, valve plate and seat contact more reasonable, ensure valve plate seal, reduce valve torque. The double shaft design of the valve can effectively reduce the pressure loss of the valve and reduce the flow resistance. Various sealing materials are available for users to choose The valve shaft and valve body can be precisely connected with the valve plate by increasing the design structure of the bushing, and the self-lubricating bushing can prolong the service life of the valve. The upper and lower shaft ends of the valve are specially sealed to ensure zero leakage of the outer seal of the shaft end. https://www.disaivalve.com/

Giacomo is the purchasing manager of a German hydraulic equipment company. Last year, the hydraulic lifting platform designed by his company was very creative and needed to purchase a hydraulic pilot operated relief valve. It was originally planned to be promoted on the exhibition at the beginning of the year, but the test run was not smooth. There was vibration and loud noise during the lifting process. The problem was the hydraulic relief valve. Giacomo was confused because the valve came from an old hydraulic relief valve manufacturer who had cooperated for 5 years. According to the manufacturer, this hydraulic relief valve sample was completely made based on the drawing, and the accuracy, flow, pressure and other requirements fully comply with the original design. The engineer realized that there might be a problem in the design, and asked Giacomo to contact several hydraulic relief valve manufacturers, hoping to get some constructive suggestions. It has been a month, but no progress has been made. Giacomo suddenly remembered that during the last communication with Gerrit of Caterpillar, Gerrit mentioned that AAK Hydraulic Valve has great design ability. With Gerrit's introduction, Giacomo told me about their current difficulties, and also sent the original drawing of the hydraulic relief valve and the video of the test run. After repeated comparison and several internal discussions, AAK technical team basically determined the cause of vibration of the hydraulic relief valve and the preliminary solution. I told Giacomo that we are 90% sure, but AAK needs to redesign the hydraulic relief valve, which will take 6-8 weeks. Giacomo paid $2,000 for the development the next day. Six weeks later, AAK sent the newly designed hydraulic relief valve samples. A week later, Giacomo sent a video of the machine testing. The vibration and noise were gone, and the whole machine could rise and fall freely. Their engineers disassembled AAK hydraulic relief valve, only then did they know that AAK design was brilliant and had a sigh of "so it is". AAK adds parts to the resonant cavity of the hydraulic pilot operated relief valve, which reduces the volume of the resonant cavity and increases the stiffness of the oil under negative pressure. According to the principle that the components with high stiffness are not easy to resonate, we have adjusted the internal design of the hydraulic relief valve, added a vibration damping sleeve and a vibration damping pad to the pilot valve, and set various damping holes on the vibration damping sleeve to increase damping to eliminate vibration. The vibration damping pad can cooperate with the resonant cavity and move freely. There is a throttling groove on the front and back of the vibration damping pad, and the oil can also produce damping effect when flowing to change the original flow. Giacomo privately informed that after the successful test run, the whole team was very happy and their engineers admired him more and more. AAK hydraulic pilot operated relief valve, no vibration, no noise, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valve-aak261

Our hydraulic valve customer Pablo from the Netherlands has an order for hydraulic relief valves. Although the order qty is only 800, it requires very high precision of grooves. He asked me for a quotation at the first time, but he thought that the quotation of AAK hydraulic relief valve was 20% higher. I also agreed with him to check with the price other hydraulic relief valve manufacturers. Pablo consulted all the hydraulic valve suppliers on hand, and most of them said that they could not achieve the groove accuracy of the hydraulic relief valve drawing. Only 2 factories could have a try, but the price was at least 60% higher than that of the conventional hydraulic relief valves. Moreover, only after the sample was made, they could know whether the groove accuracy could meet the standard. Pablo was a little confused. After wasting a week, he returned to AAK Hydraulic Valve. Pablo was surprised that most manufacturers could not do the groove precision of hydraulic relief valve, which seemed to be a very conventional process. I told him that the cutting and processing area of this hydraulic relief valve was closed, with high resistance of the cutting tools, fast wear and tear, and difficult chip removal. The groove precision was even more difficult to ensure, that is, the conventional processing technology was not feasible, which was also the reason why so many hydraulic relief valve manufacturers gave up. At the same time, I told him that the two hydraulic relief valve manufacturers who were willing to try were 60% more expensive because they used high-speed milling to avoid tool damage and improve groove accuracy. This technology is not only costly, but also has very strict requirements for the entire processing system. Otherwise, the accuracy cannot be guaranteed, and most manufacturers cannot control this technology. Pablo was surprised by our understanding of the industry. It seems that he can only choose AAK to make the samples. Two weeks later, we successfully sent 6 samples of hydraulic relief valve. Their engineers approved AAK hydraulic relief valve samples at one time after receiving them. I fed back to Pablo that AAK adopted UG CAD module to solve this processing problem. No hydraulic relief valve manufacturer in Ningbo would think of using this technology. This technical point is imported from Germany. The CAD module of UG is used to model the geometric parameters of the groove, and then the CAM module of UG is used to NC program the machining of the groove of the hydraulic relief valve. The tool path and cutting method are set by programming. The NC program thus obtained can carry out the precise machining of the groove and solve the problem of chip removal. The reason why AAK can effectively deal with the high- precision machining of hydraulic relief valve groove is that after generating the tool path of machined parts, the whole process is simulated by using the simulation function of UG software. Our technicians can clearly see the processing path of the processing tool, that is, turn the closed area into a visible area. After the simulation, determine the tool direction through UG software, and then import it into the file of the NC machine tool to generate the code for executing the command. AAK hydraulic relief valve groove processing adopts simulation modeling technology, which not only reduces the cost, but also ensures the accuracy. You are welcome to try the order. https://www.aakindustry.com/info-det , ail/hydraulic-relief-valves-aak260

The bosses of China's manufacturing industry, as well as the hydraulic cartridge valve industry, all enjoy listening to "Dao". The source of China's "Dao" is the famous Chinese work "Tao Te Ching" 2500 years ago. The first sentence at the beginning of the book is: ' Dao that can be daoed is not the true Dao'. It is said that any truth that can be expressed is not an eternal truth, and there are times when it does not hold true. Dao, in fact, is not concrete and can only be understood by meaning, but cannot be conveyed in words; So what is this Dao? I really don't know. The big and small leader in the hydraulic cartridge valve industry, focus on 3 tasks every day: reading books, reading things, and reading people, to improve oneself through these 3 dimensions or solve problems encountered in the hydraulic cartridge valve industry. The Tao that I have come to realize also comes from 3 aspects. 1. There is only one Dao to manufacture hydraulic cartridge valves, that is the manufacturing quality of hydraulic cartridge valves. 2. There is only one Dao to promote hydraulic cartridge valves, focusing on density and thickness in network promotion. 3. There is only one Dao to sell hydraulic cartridge valves, which is to maintain the integrity of the enterprise and win trust. Regardless of the type of manufacturing industry, there is only one Dao, which is manufacturing quality. Only with the quality of domestic first line brands or benchmark the quality of global first line brands, you can remain invincible in this industry. The manufacturing quality of AAK hydraulic cartridge valves is benchmarking against SUN Hydraulics and HydraForce. Domestic small and medium-sized factories or manufacturing industries are upgrading, and low-end manufacturing will inevitably shift to Southeast Asia and Central Asia. In the future, if there are no orders and it is difficult to find jobs every day, it indicates that the industry has not upgraded and still wants to live on low-end orders. Upgrading the industrial goal and positioning it in the manufacturing quality of global first line brands. There is only one Dao to promote hydraulic cartridge valves, focusing on density and thickness in network promotion. The way to make money in the manufacturing industry is to sell goods online, and of course, it can also rely on salespeople to enter the market, establish relationships, give kickbacks, and other means to sell out. If a factory owner still has to use fancy relationships, will he have time to focus on manufacturing quality, and energy to upgrade products? There is only one Dao for the sales of hydraulic cartridge valves, which is the integrity of the enterprise and the trust of customers. In what state will a trustworthy businessman go awry? If you lack money, you will definitely easily get into trouble. Or rather, when a person is short of money, it is difficult to maintain integrity, even though he has always been very trustworthy. Online merchants, in a virtual world, do real business. Due to being separated from the internet and invisible to both buyers and sellers, there is a great need for honesty. Time and time again, honesty accumulates trust, which is the best golden signboard for online merchants, and it is even more powerful than brand. Dao relies on enlightenment, not just taking it. Chinese manufacturing bosses like to listen to "Dao" and just wonder if there are any available methods. As long as the methods, skills, and answers are given directly, whether it is from books, classrooms, or teachers, it is hard to be implemented. Many people always try to find solutions from others or the outside world, just like seeking a master key, so that they don't have to think or grow, and can solve all problems lying still. This is a typical example of finding shortcuts and being lazy. Laziness, the laziness of most people, is with the ability but not doing it. Knowing where the problem lies is simply procrastinating or not learning new methods. The most obvious thing is that hundreds of thousands of people are filming videos and doing live broadcasts, just you are not able to do it? Definitely not, it's laziness. I know that the video and live streaming effects are good, but I just don't do it. The order still comes from the old way. Why not do video and live streaming? AAK hydraulic cartridge valve, adhere to 3 Dao: the manufacturing quality of hydraulic cartridge valves, the density and thickness of network promotion, the integrity of the enterprise and win the trust. AAK HYDRAULIC CARTRIDGE VALVES (562) 2023-04-15 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valves-aak562

Last night, a rich second generation from a hydraulic cartridge valve manufacturer invited me to dinner. He not only wasn't angry with someone who caused him embarrassment, but also said it was his own fault and taught me a lesson. Before telling this story, I thought of what I saw in Shanghai a few days ago. A hydraulic cartridge valve manufacturer get along well with me introduced a customer to AAK, and asked me to go to Shanghai for a face-to-face communication. In the top office buildings of the company in Shanghai, I saw most of the executives who were very friendly to security guards and cleaning aunts, actively waving and smiling. Suddenly, I felt that wealthy people are very approachable to the bottom class now, but it used to be different. The rich second generation of this hydraulic cartridge valve manufacturer is a friend of my classmate. He is gradually taking over his father's hydraulic cartridge valve factory. Their family not only operates hydraulic cartridge valve factory, but also engages in financial businesses. Anyway, they are very wealthy, even their family does nothing, and this generation is not worried about food or clothing. Last night while we were eating at the restaurant, a waitress accidentally knocked over a large glass of beer with her elbow, spilling all over his pants. My friend smiled and didn't get angry. He wiped it himself and said to the waitress, 'It's okay, you're busy with your work.'. I felt that the waitress was quite nervous. After a while, the waitress and the restaurant manager came together and apologized to him together. The manager also said that he would deduct the waitress's bonus. Upon hearing this, he directly said to the manager, 'Don't criticize her. I touched it myself, not the waitress. She was not wrong'. I suddenly felt that this guy has excellent character and extremely high quality, and the people at our table also praised him. As a result, he was also happy, but what he said next overturned the Three Views. He said, 'This is to protect myself, there's no need to argue with them. They don't have much money. If this makes them feel bad and puts their anger on me, I don't have to gamble with them. My time, my value, is more valuable than theirs.'. After thinking about it later, it was actually true. Many times, the approachability shown by those who are particularly advanced is rooted in the fear of causing unnecessary trouble. If this logic is extended to business, there is no need for hydraulic cartridge valve manufacturers to argue with some customers. We have new customers inquiring every day, and there is no need to spend more time on hydraulic cartridge valve customers who are haggling fiercely and demand more, as well as those who may not be able to afford hydraulic cartridge valves. Refusal in good faith also protects the hydraulic cartridge valve manufacturer AAK In fact. For major customers, especially those from the Fortune 500 or those who value quality, as long as your manufacturing quality is recognized by them and the delivery time is guaranteed, everything else is easy and they do not haggle over the price. Hydraulic cartridge valve manufacturer AAK enjoys serving these customers the most. While striving for manufacturing quality, we adhere to daily dissemination of our customer cases, production processes, and process technical skills. Churchill said to his compatriots, "I have nothing, all I can offer is blood, hard work, sweat, and tears." And I want to say to customers or potential customers of hydraulic cartridge valve manufacturer AAK, "After reading and writing for so long, I still know nothing. All I can offer is sincerity Customer first, no one pays attention to you; Customer obsession, love you for 3 years. Hydraulic cartridge valve manufacturer AAK is only willing to do things that fascinate customers. AAK HYDRAULIC CARTRIDGE VALVES (657) 2023-08-26 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak657

Ernst is from a German hydraulic equipment company. He has been doing well in recent years, and his boss is optimistic about him. The hydraulic relief valves purchased this time has suffered a big setback. In the second half of last year, the hydraulic power unit sold by their company for less than 3 months was complained by customers. When the pressure of the hydraulic relief valve was adjusted to 450bar, the equipment idled. The engineer thought that it could be solved by changing the motor. As a result, after the equipment started for a while, the same situation happened again. The engineer checked each component, and it turned out that the spool of the hydraulic relief valve was stuck. After the boss knew about it, he asked Ernst to request the original hydraulic relief valve manufacturer to solve the problem and bear the motor cost twice. Per the manufacturer, the price of the hydraulic relief valve is too low this time. Under the high pressure of 450bar, it is difficult to avoid a few stuck occasionally, then there is no further news. Ernst had no choice but to find new hydraulic relief valve suppliers. Ernst contacted more than 10 factories and requested that the hydraulic relief valve be 100% free of jamming within 1 year under the high pressure of 450bar. Only two factories were willing to cooperate with the samples, and other manufacturers gave up directly. Ernst still seemed worried about wasting time. With the introduction of his friend Steven, who is our old customer, he contacted AAK hydraulic valve. Ernst asked us to make samples directly according to his hydraulic relief valve drawings and working conditions. The key of this hydraulic relief valve is how long the service life of the hydraulic relief valve is under 450bar high pressure? Actually, AAK has already mass produced hydraulic valves with similar requirements. Nine months later, Ernst informed by e-mail that the hydraulic relief valve from one factory had been on strike because of its stuck, and the other factory's, although still working, it was estimated to be less than 12 months. After 9 months of use, the parameters of AAK hydraulic relief valves are still stable and function normally. Ernst said that compared with more than 10 factories, AAK high-pressure hydraulic relief valve has the most stable performance and longest service life among all the manufacturers he knows. Ernst estimated that he would not need to change the hydraulic relief valve suppliers any more. AAK hydraulic relief valve has 3 advantages and has already surpassed its domestic counterparts.   1. AAK has a high-precision CNC machining center imported from Switzerland and its own upgraded and refitted independent fixture, which eliminates human errors. The high-precision control of component processing is the key point to prevent jamming. 2. AAK has engineer team with over 10 years of technical experience, independent professional research and development, with unique research and development technology, select the raw materials and spare parts according to the working conditions of customers' actual needs. The selection of materials is the key to determine the service life of the hydraulic relief valves. 3. Through EasyForm software, AAK can accurately and quickly measure each valve component to ensure that the concentricity of each hydraulic relief valve is 100% consistent and prevent jamming. Detection is the final check on the quality control of the hydraulic relief valves. AAK hydraulic relief valve is resistant to high pressure and has no jamming. You can also have a small try! https://www.aakindustry.com/info-d , etail/hydraulic-relief-valves-aak259

This week, we’d like to introduce a hydraulic solenoid cartridge valve equivalent to SUN DTDF. This solenoid-operated 2-way, 2-position cartridge is a direct-acting, poppet-style directional valve. Before CNY, we received an inquiry from a new customer from the Europe for a hydraulic solenoid cartridge valve equivalent to SUN DTDF. There are only a few hydraulic cartridge valve manufacturers in China who have this hydraulic solenoid cartridge valve DTDF in stock. AAK just developed it 6 months ago for a German customer.   AAK hydraulic solenoid cartridge valve E-DTDF two advantages: 1. The function and performance is equivalent to that of SUN DTDF 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-DTDF hydraulic solenoid cartridge valve: Max. Operating Pressure: 350 bar (5000 psi) Flow: 10 gpm (40 L/min) Internal Leakage: 10 drops/min Cavity: T-13A AAK E-DTDF hydraulic solenoid cartridge valve, benchmarking SUN DTDF, its service life is 2 times that of its domestic peers. You are welcome to give it a try. AAK HYDRAULIC CARTRIDGE VALVES (776) 2024-02-19 https://www.aakindustry.com/info , -detail/solenoid-cartridge-valves-aak776

Each of us is exchanging value with the world. Whether you are an individual, manufacturing industry or other roles, you can't do without "exchange". The essence of business is exchange, such as AAK Hydraulic Manifold, which is exchanged with the value of our hydraulic manifolds to the customer's US dollar price. However, the time dimension of this value exchange determines the level and pattern of the enterprise. The exchange of some hydraulic manifold manufacturers is based on the "present", which is the first level in my understanding. These hydraulic manifold manufacturers do onetime deal. Pay the money and deliver the goods at the same time, then call it quits. This way is fast, simple and direct, but not a long-term one. The exchange of some hydraulic manifold manufacturers is based on "a lifetime", which is the second level in my understanding. These hydraulic manifold manufacturers should not only do business with customers once, but also do business with customers all the time. If you have such a perception in your mind for a lifetime, then people will become broader and more honest. Because honesty means that we have to play repeated games with the world. Exchange honesty for trust. Exchange integrity for benefits. This is a simple business cognition, but it is also a personal awakening. Most of the people who make you feel comfortable have reached this level, whether they are owners of small hydraulic manifold manufacturers or large entrepreneurs with tens of billions of scale. They will adhere to long-term principles throughout their lives. The exchange of some hydraulic manifold manufacturers is based on "generation after generation". This is the third level in my understanding. What is more long-term than life is life after life. Enterprises have a longer life than entrepreneurs. Brand life is longer than product life. Therefore, all values and trust are accumulated in the enterprise and brand. In this way, there will be a century-old enterprise and an everlasting foundation. People who want to do business with the world from generation to generation, you will find that they are more selfless, fearless and more socially responsible. AAK Hydraulic Manifold, is unwilling to keep pace with its peers on the first level, has stood on the shoulders of the second level, and may be on the way to the third level. I don't have to be the winner. As long as it is valuable, I will do it. It doesn't matter whether I succeed in my lifetime or after a hundred years. This is really the mind worthy of our respect, the object of my study, and the step I have been pursuing. After hearing the truth and rules, masters will really practice day after day. Most people are half convinced when they hear the truth and rules. The outmoded people laughed when they heard this. So, what should we do? Become a master. Practice, try, act and summarize. Only in this way can the external truth be internalized into one's own ability. Only external laws can be internalized into their own cognition. That's it. The greatest truths is concise, and heavy swords don’t need edgy blade. AAK Hydraulic Manifold is only willing to be a master, and is different from most hydraulic manifold manufacturers. In the business world, it is difficult to go further. But as we often say, hard roads are never crowded. AAK Hydraulic Manifold, no matter how far it is, insists on taking steps every day, and will eventually arrive. https://www.aakindustry.com/info-de , tail/hydraulic-manifolds-aak481

Oliver comes from a hydraulic equipment company in Canada. At the end of last year, they planned to develop a hydraulic cylinder that uses a hydraulic directional control valve. The parameter requirements are high, especially the internal leakage should be less than 2drops/min. Oliver inquired about more than 10 manufacturers of hydraulic directional control valves. Only one supplier who had cooperated for 5 years told him that he was 90% sure. Other manufacturers surrendered. One month later, the hydraulic directional control valve was installed with the oil cylinder. Less than 12 hours after startup, the hydraulic oil cylinder was unstable during reciprocating motion. After disassembly, the engineer found that the hydraulic directional control valve had internal leakage exceeding the requirement of 2 drops/min. Oliver was very helpless. He continued to look for new manufacturers of hydraulic directional control valves, and they all basically replied that they could not meet the requirement of internal leakage. Oliver found an article on Google, "The internal leakage index is equaled to the local manufacturer in Germany, but AAK hydraulic threaded cartridge valve has better cost performance”, and left a message on our website: can you customize the hydraulic directional control valve with internal leakage of 2drops/min? At first glance, I knew that this was an accurate customer consultation. Although the internal leakage of 2drops/min was difficult, AAK had mass production 1 year ago. We suggested him send us the drawings and working condition requirements of the hydraulic directional control valve, and AAK can make samples directly. If the internal leakage of the hydraulic directional control valve does not meet the standard, 100% of the development cost will be returned. According to the development data provided by Oliver, there may not be any other manufacturer that can provide guarantee except AAK. After 30 days, AAK successfully sent 8 hydraulic directional control valve samples. Three months later, Oliver informed that no abnormality of the hydraulic directional control valve was found during the 3 internal commissioning of his company. After the hydraulic cylinder was tried out by the user, the feedback was also very good. Oliver is curious about the hydraulic directional control valves surrendered by so many manufacturers. Why did AAK samples succeed at one time? AAK hydraulic directional control valve has 3 absolute advantages and has already surpassed its domestic counterparts: 1. The precision honing machine imported from the United States is used to finish the valve hole and valve spool of the hydraulic direction control valves for more than 3 times. The dimensional accuracy of the valve hole is IT7 ~ 4, and the surface roughness can reach Ra 0.32 ~ 0.04μm, thus meeting the requirements of high accuracy. 2. AAK engineer team, select the raw materials and spare parts based on the requirements of working conditions, and never follow the ordinary market. Especially in the customization of high requirement hydraulic directional control valves, they have rich experiences and cases. 3. AAK has been OEM factory of hydraulic valves for 3 of the world's top 500 companies for 10 years. The quality control process is more strictly self- executed than the ISO certification system. It sticks to manufacturing details, focuses on process innovation, and focuses on technology research and development. Ensure that each hydraulic directional control valve has anti fatigue, high precision and long service life. AAK hydraulic directional control valve, 2drops/min internal leakage, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valves- aak258

Mike is a Canadian customer who has cooperated with AAK for more than 2 years, and he has been very smooth in purchasing hydraulic valves. But in May this year, he suffered a lot in purchasing this hydraulic pressure valve. The order for a hydraulic pressure valve originally supplied by an American manufacturer, was not accepted by the manufacturer due to capacity. He contacted some Chinese hydraulic pressure valve manufacturers. To his surprise, most manufacturers offered 20% more than the original American manufacturer, and two of them were about the same price as the American manufacturer, however, the surface roughness and diameter tolerance of the hydraulic pressure valve samples were not up to standard. Mike was distressed that he couldn't find a substitute for the original American hydraulic pressure valve manufacturer. Mike knows that AAK HYDRAULIC VALVE is a manufacturer that pays attention to quality, and its price will be higher than that of its domestic counterparts. With regard to this hydraulic pressure valve, he emailed me and asked why most manufacturers offered 20% more than the original American manufacturer? For this abnormal situation, I told him directly that it must be due to the high defective rate of processing. AAK is confident that the price is cheaper than American manufacturer, and the quality is not inferior to American manufacturer. According to the drawings of the hydraulic pressure valve issued by him, AAK technical team found that the processing was really exquisite. It requires that the coaxiality and roundness of the Φ8mm/Φ9mm hole should be less than 5μm, and the Φ15mm/Φ9mm orifice should be free of burrs. To guarantee coaxiality and roundness requirements of 5μm, and keep the inner wall of the hole at 0.6μm roughness, at least 50% of valves should be scrapped according to the existing processing technology. This confirms my guess that why the quotation of domestic manufacturers is 20% higher than that of American original manufacturer. Mike was not calm after receiving the quotation of AAK hydraulic pressure valve. He repeatedly confirmed with me whether the price was wrong? The price of AAK is not only cheaper than that of domestic manufacturers, but also 30% cheaper than that of American manufacturer. I told him that this hydraulic pressure valve can only be drilled and reamed for many times by domestic peers, which not only has a long processing cycle, but also is difficult to ensure the processing accuracy. At the same time, the whole hole processing including tool change time is at least 210 seconds, and most of the tool life is less than 500 holes, which is time-consuming, money consuming, and what is worse, the qualified products are very limited. Of course, the cost is high. Mike asked me to try the sample directly. 2 weeks later, we sent the hydraulic pressure valve sample. 5 days later, Mike’s team confirmed the quality of AAK hydraulic pressure valve at one time, and the production time provided by AAK was less than half of domestic peers. For processing this hydraulic pressure valve, we use integral cemented carbide tools, and use 3 efficient tools to replace the original 9 tools. We also use special guide strips and internal cooling design to maintain tool life and improve cutting speed and machining accuracy. The number of inner holes can be stabilized at 3000, which is 6 times that of peers. The internal leakage of the whole machine has also been reduced from 1.6 to 1.1, and the processing and tool change time has been reduced to 45s, which is only 22% of peers. Such efficient and high-quality processing is not our temporary idea, but the result of adhering to technological innovation. There may not be such a second hydraulic pressure valve manufacturer in Ningbo. AAK hydraulic pressure valve is benchmarked to the quality of American manufacturer. You are welcome to test an order. https://www.aakindustry.com/info-det , ail/hydraulic-pressure-valve-aak256

Timon is from a hydraulic equipment manufacturing company in the Netherlands. He has been smooth on purchasing hydraulic cartridge valves from China. A hydraulic cartridge proportional control valve he purchased in the second half of last year was in trouble. For a customer, they customized a hydraulic forging presses, which require high speed when unloaded and low speed when overloaded. The key to the stability of the hydraulic system and the stepless speed control of the equipment is the hydraulic cartridge proportional control valve. Timon worked with a manufacturer of hydraulic cartridge proportional control valves who has cooperated with them for 3 years to try samples. During equipment commissioning, the main working cylinder had abnormal pressure relief, which would seriously affect the service life of the equipment. After several rounds of inspection, the problem was locked in the structure of the hydraulic cartridge proportional control valve, but the original manufacturer was unable to optimize it. Timon contacted more than 10 hydraulic cartridge valve manufacturers. A week passed, but there was no solution. Their engineer has push for progress 3 times. Timon found AAK Hydraulic Valve on Google, stayed on our website for 11 minutes, and left a message: 1. Can AAK optimize the structure of a hydraulic cartridge proportional control valve? 2. Can the optimized hydraulic cartridge proportional control valve improve the large pressure impact of the hydraulic system? 3. What is the lead time and development cost for customizing the hydraulic cartridge proportional control valve? After communication, we learned about Timon's procurement dilemma. After checking the system schematic diagram and original design drawings of his hydraulic cartridge proportional control valve, AAK engineers understood the direction of optimization. When Timon learned that AAK was 90% sure to be successful, he asked us to make samples. After 30 days, AAK sent 10 samples of hydraulic cartridge proportional control valves. 3 weeks later, Timon said that the equipment had been delivered to the customer, and their engineers were very satisfied with AAK hydraulic cartridge proportional control valve, which completely solved the problem of large pressure impact in the hydraulic system of the forging press. AAK hydraulic cartridge proportional control valve can accurately control small flow and large flow, with small flow fluctuation and small pressure impact. The key is that AAK hydraulic cartridge proportional control valve has the function of variable flow gain. The structure is that the lower part of the hollow valve spool is put into the valve cage and sealed with the valve cage line. The upper part of the hollow valve spool is matched with the control cover plate. The upper end of the control cover plate is connected with the valve cover, and the valve cover is equipped with a displacement sensor. A pilot control valve is installed on the side of the control cover plate. The port at the bottom of the valve spool is processed with a semicircular hole, and the valve cage is provided with 4 symmetrical waist holes. With the optimized structure, when the opening of the hydraulic cartridge proportional control valve is small, the flow gain is small, and high-precision linear control of small flow can be realized. When the opening amount is large, the flow gain is large, and high- precision linear control of large flow can be realized. Under the high- precision linear control of large flow, the hydraulic cartridge proportional control valve has small flow fluctuation, small pressure impact, and the service life of the valve is increased by at least 30%. AAK hydraulic cartridge proportional control valve, variable flow gain function, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-cartridge-proportional- control-val , ves-aak411

Chadwick is from Israel and has just purchased hydraulic cartridge valves from manufacturers in China for no more than half a year, but encountered problems when purchasing a hydraulic cartridge pressure control valves. One of their hydraulic manifolds needs a hydraulic cartridge pressure control valve with 2μm accuracy spool. Chadwick knew that the accuracy was high, so he chose a hydraulic cartridge valve manufacturer in Ningbo from the current supplier list. Perhaps the working conditions have high requirements. The original manufacturer has tested 3 times, and each time several hydraulic cartridge pressure control valves leaked. The original manufacturer can only give up because the valve spool accuracy of this hydraulic cartridge pressure control valve is not easy to control. Time has been wasted for almost 3 months, Chadwick was very anxious. I'm not sure how Chadwick found AAK. The message he left us was only a picture of the valve spool, with a question if AAK is able to meet 2μm accuracy? For questions like this, whether the answer is yes or no, it is not persuasive. I only told him that AAK provided hydraulic cartridge valves with 1μm accuracy spool for Russian customers previously, and did not say too much. The next day, Chadwick sent detailed drawings of the hydraulic cartridge pressure control valve. After communication, it was learned that he had wasted 3 months with the original manufacturer. I told him that AAK only make samples one time, either get it done or give it up because this valve spool is really a bit special. After 40 days, AAK sent out 30 hydraulic cartridge pressure control valves. 1 month later, Chadwick sent us an order for 200 pcs of hydraulic cartridge pressure valves, which means that AAK hydraulic cartridge pressure control valve has been recognized. I told him that the main focus is not only on the precision machining of the valve spool, but subsequent testing is also crucial. Perhaps most hydraulic pressure control cartridge valve manufacturers in China only focus on precision machining but ignore the details of testing. AAK hydraulic pressure cartridge valve spool has no abnormalities, because it is only after each valve spool has been tested, the next process can be proceeded. The detection of this hydraulic cartridge pressure control valve spool adopts a Japanese KEYENCE optical axis measuring instrument, which is fully automatic and 360 degree detection. The dimensions, contour, accuracy, and surface roughness of the valve spool do not require manual inspection. Each process is displayed on the computer screen synchronously. If there is a deviation, a red reminder will automatically appear on the screen. The detection of AAK not only avoids human error, but also improves the detection speed by more than 10 times, not only fast, but also very accurate. AAK hydraulic cartridge pressure control valve, from processing to testing, is unique, you can give it a try! AAK HYDRAULIC CARTRIDGE VALVES (656) 2023-08-04 https://www.aakindustry.com/info , -detail/cartridge-pressure-control-valves- aak6 , 56

Most hydraulic manifold manufacturers in Ningbo China only produce manifold blocks and do not produce hydraulic cartridge valves. The production of manifold blocks is relatively simple compared to hydraulic cartridge valves. A while ago, Tomi from Italy found hydraulic manifold manufacturer AAK and hoped that we could develop a manifold block. Tomi initially hoped that the original hydraulic manifold manufacturer would develop a whole set of manifold assembly, but the manufacturer delayed time by selecting hydraulic cartridge valves. Tomi had to take remedial measures and only purchased manifold blocks from the original hydraulic manifold manufacturer, but now they have been put on hold due to the complex oil circuit and inadequate processing of the manifold blocks. Tomi realized that finding a reliable hydraulic manifold manufacturer is too important. According to the manifold block drawing sent by Tomi, the oil circuit holes are complex and the accuracy is also high. I told Tomi that hydraulic manifold manufacturer AAK can deliver the manifold blocks within 40 days. Last week, Tomi asked about the production progress of the manifold block. I estimated that due to the bad experience with the original hydraulic manifold manufacturer, he was also worried that the hydraulic manifold manufacturer AAK would delay his progress. I went to the workshop to take a video of the manifold block being processed for him, so that he could feel at ease. We have chosen Hision Precision Horizontal Machining Center for this manifold block, which adopts a three-axis three-dimensional positioning system and is equipped with a high-speed electric spindle. It is also equipped with spindle bearings and gearbox cooling devices, which not only improves lubrication efficiency but also avoids errors caused by thermal deformation of the spindle box, providing assurance for the accuracy of the valve hole. At the same time, the equipment adopts a hydraulic tool changing system, which can achieve fast and automatic tool changing and solve complex valve hole machining. The equipped CNC system can be intelligently controlled, ensuring the machining accuracy and progress of manifold blocks. 　　 Hydraulic manifold manufacturer AAK in China, equipment 3 advantages, 2 guarantees, you are welcome to try a small order! AAK HYDRAULIC VALVES (779) 2024-02-06 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak77 , 9

Laird is from Brazil, and we met 2 years ago. He conducted 6 inquiries, 3 trial orders, and 1 trial order for hydraulic directional control valves with AAK. But there has been no inquiry in the past 6 months, which surprised me. I have checked with him twice but there has been no response. It wasn't until Laird contacted me a few days ago that I learned about the sealing story of the hydraulic directional control valve cover cap and valve cage. In the second half of last year, their hydraulic power unit required hydraulic directional control valves. Laird inquired from 3 hydraulic directional control valve manufacturers in China, and AAK also provided quote. Laird chose a hydraulic directional control valve manufacturer with competitive price. 6 months later, the customer complained about hydraulic directional control valve leakage, causing unstable system operation. On site, it was found that the leakage point was between the hydraulic directional control valve cover and valve cage. The original valve manufacturer claimed that it was caused by severe vibration and he could only guarantee the service life of the hydraulic directional control valve for 6 months. However, the customer requested at least 1 year or more. Laird thought of the hydraulic directional control valve previously supplied by AAK, which had no abnormal leakage and had a service life of over 1 year. I told him that last time, AAK hydraulic directional control valve was quoted 20% expensive than its peers, but its service life was twice that of its peers. This time, it has been verified again with you. Let's make a comparison. Our quotation for this hydraulic directional control valve is $12.00. Based on a 1 year calculation, the monthly usage cost is $1.00. If the original valve manufacturer's price is $10.00 and the service life is 6 months, then the monthly usage cost is over $1.50. This is the invisible benefit that AAK hydraulic directional valve brings to customers. Laird agreed with my explanation and sent an order for 200 pcs of hydraulic directional valves the next day. How to avoid vibration and leakage in the sealing between the AAK hydraulic directional valve cover and valve cage? This is a small detail, AAK has tricks. AAK uses thread anaerobic adhesive, which is evenly injected into the joint and self cured at room temperature. After curing, it will not be corroded by hydraulic oil or other organic media, and the key lies in the uniform injection method. This avoids loosening of threads caused by vibration between the hydraulic directional valve cover cap and valve cage, while protecting the joint from corrosion. The seal between the AAK hydraulic directional valve cap and valve cage is not loose or leaking. AAK hydraulic directional valve, no leakage, you can also give it a try! AAK HYDRAULIC VALVES (561) 2023-04-14 https://www.aakindustry.com/info , -detail/directional-control-valve-aak561