Valves

Fischer comes from a Spanish hydraulic equipment manufacturing company and is an experienced purchaser. Unexpectedly, the hydraulic pilot operated relief valves purchased last year made him depressed for more than 1 month. In August last year, the sales of one of their hydraulic power units was not satisfactory, and there were several complaints about unstable supply and pressure. The problem is that the angle error of the inner cone of the hydraulic pilot operated relief valve is large. The original manufacturer of the hydraulic pilot operated relief valves advised that this is an individual problem. But after replacement with new one, there are more and more complaints. The boss was very angry and requested Fischer to purchase a new batch of hydraulic pilot operated relief valves for replacement within 45 days. Fischer contacted with many hydraulic cartridge valve manufacturers and required that the angle error range of the cone inside the sleeve of the hydraulic pilot operated relief valves must be 100% controlled within ± 0.08 °. However, 1 week has passed and no one of these hydraulic valve manufacturers is willing to accept the order. Fischer was depressed and worried. Introduced by his friend Trinidad, an old customer of AAK, Fischer sent me an e-mail. According to his drawings of hydraulic pilot operated relief valve, as long as the angle error of the conical surface in the valve sleeve is solved, the unstable pressure supply of the hydraulic power unit can be solved. 1 month later, AAK sent 100 hydraulic pilot operated relief valves. Last week, Fischer informed by email that since AAK hydraulic pilot operated relief valves were used, there was no complaint about unstable pressure supply. Their engineers specially tested the internal cone angle of the hydraulic relief valves, which was 25% higher than their accuracy requirements and 100% controlled within 0.06°. Fischer was curious that the internal cone angle error of 0.06° could not be solved by many hydraulic valve manufacturers, but AAK exceeded the standard for 25%. As early as 3 years ago, AAK engineers innovated the precision machining of valve body. First, they established a manufacturing error model to control the error range of the angle of the inner cone below 0.06° and the maximum axial grinding tolerance of the corresponding sealing circle below 2μm. At the same time, a special detection device is innovated to improve the detection accuracy through error correction and ensure the stability of grinding manufacturing accuracy. The inner conical surface of the hydraulic pilot operated relief valve sleeve adopts the finishing process of carbonitriding and post grinding to accurately control the grinding amount. The key is to control the grinding amount. If the grinding amount of the inner cone surface is too large, it will result in the reduction of hardness, and the service life of the hydraulic pilot operated relief valve will be reduced, which leads to unstable pressure supply. AAK hydraulic pilot operated relief valves, strictly control the details, high accuracy, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-pilot-operated-relief-valves- aak , 316

Maverick is from a Canadian hydraulic equipment manufacturing company. In the first half of last year, the high-temperature hydraulic power unit dedicated to meltblown equipment sold by their company for less than 4 months was complained by customers. The engineer found that the opening pressure of the hydraulic pilot operated relief valves on the equipment deviated from the set standard pressure, resulting in unstable pressure supply. Through further inspection, it was found that the pressure spring in the valve failed. According to the feedback from the original manufacturer of the hydraulic relief valves, the fatigue resistance of the pressure spring is reduced due to the working condition environment exceeding 350℃ and long-term full load operation, so the pressure spring can only be replaced. 3 months later, the same problem occurred again. The customer complained directly to the boss. The boss asked maverick to source the hydraulic pilot operated relief valves with a service life of more than 1 year to replace the current stock. Maverick contacted more than 10 hydraulic relief valve manufacturers and they all said that the pressure spring life of the hydraulic pilot operated relief valves can only be guaranteed for 6 months under the high temperature of 350℃. The boss has pushed twice, but the new manufacturer of the hydraulic relief valves has not been found. Maverick is worried. Maverick found AAK Hydraulic Valves from Google and left us a message: how much temperature can the pressure spring of hydraulic relief valve withstand and ensure a life of 1 year? I answered directly: AAK used to ship hydraulic valves with high temperature resistance of 500℃, and no customer complained that the pressure spring was invalid. The next day, he provided the working condition requirements and production drawings of the hydraulic pilot operated relief valve, and informed that the current procurement of this hydraulic relief valve was not smooth, and urgent replenishment was needed to replace it. AAK engineer found that the hydraulic pilot operated relief valve not only has high requirements for the spring, but also has shortcomings in the design. We advised the design change suggestions and promised to complete the trial order within 45 days. After 45 days, AAK sent out 30 hydraulic pilot operated relief valves. Last week, Maverick sent an e-mail that it is going to be 1 year, the equipment installed with AAK hydraulic pilot operated relief valves has no abnormal pressure supply till now. He needs to re-order 300 more. Under high temperature conditions, the service life of AAK hydraulic pilot operated relief valve is more than 1 year, it is so different from the most of the peers are due to the following 3 points: 1.AAK engineers have more than 20 years of development and design experience. The dynamic balance of the valve spool of this hydraulic pilot operated relief valve is high. Only by optimizing the valve port size can the flow always be controlled within the set pressure range. On the contrary, it will affect the pressure supply. This skill is very particular. 2.AAK has unique method to choose pressure spring, chooses 30W4Cr2V heat- resistant pressure spring steel with the best opening ratio as the core component of this hydraulic pilot operated relief valve according to the pressure range and spring stiffness coefficient. The pressure spring will not fail even if the oil temperature is higher than 500℃. 3.AAK Hydraulic Valve has developed 500 non-standard customized hydraulic cartridge valves for 7 world top 500 enterprises. Maverick also privately informed that the performance of AAK hydraulic pilot operated relief valve was admired by their engineers and they introduced AAK to several peers. AAK hydraulic pilot operated relief valves, optimized design, strict material selection, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-pilot-operated-relief-valves- aak , 315

Renato comes from Brazil and recently developed a hydraulic cartridge directional control valve, which caused him trouble. In May this year, their improved hydraulic power unit required customized hydraulic cartridge directional control valves. Renato chose an old supplier to make samples. The samples were recognized by their technical department except for the valve hole accuracy of the hydraulic cartridge directional control valve. After sending samples several times, the original manufacturer still failed to achieve the stable accuracy, wasting more than 60 days and had to give up. The technical department complained that Renato did not choose high-quality hydraulic cartridge valve manufacturer for this directional control valve, which made Renato very worried. Renato left a message on AAK website: Can AAK finish 30 pcs of non-standard customized Hydraulic cartridge directional control valves in 30 days, with valve cage and hole accuracy within 2μm, cylindricity within 3μm and surface roughness within Ra0.2? Most hydraulic cartridge valve manufacturers will not give a reply for this small quantity of customization, either they don't like it or they can't handle it. After communication, we learned that the original manufacturer of the hydraulic cartridge directional control valve wasted too much time, making him very passive. I sent him some cases that AAK customized hydraulic cartridge directional control valves for customers in the past, involving detailed requirements such as accuracy, cylindricity, surface roughness, etc. Renato paid the development fee the next day, and 30 days later, AAK sent out 30 samples of hydraulic cartridge directional control valves. 2 weeks later, Renato informed us that their technical department had approved AAK hydraulic cartridge directional control valve samples, and his trouble was finally resolved. In fact, the accuracy of this hydraulic cartridge directional control valve is not too difficult. As long as the precision machining details are in place, the stability of accuracy should not be a problem. The original manufacturer's processing is not poor, and may not be thorough in the details. This hydraulic cartridge directional control valve hole is precision machined by AAK using an American vertical honing machine. The precision requirement is for military products, and AAK has also upgraded its pneumatic measuring instrument, from precision machining to measurement, in one step, without the need for replacement processes. The spindle speed of the honing machine is set between 220-250 rpm, and most hydraulic cartridge valve manufacturers prefer to choose between 260-300 rpm. However, for the stability of accuracy, AAK does not recommend this setting. After installing the hydraulic cartridge directional control valve into the fixture, it can achieve simultaneous precision machining of 8 models. The feed adopts stepless speed change, and the abrasive particles forcibly enter the machining valve hole to ensure that there are no dead corners in the valve hole. The valve cage bears constant grinding force, which is also conducive to the stability of accuracy. AAK hydraulic cartridge directional control valve, 1 equipment, 2 details, ensuring accuracy and stability, you can also give it a try! AAK HYDRAULIC CARTRIDGE VALVES (676) 2023-09-21 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-directional- contro , l-valves-aak676

At the beginning of this year, Liam from the Netherlands found AAK Hydraulic Valves on Google. He told me that he encountered the dilemma of purchasing hydraulic pressure reducing valves. Their company has developed a hydraulic support column used in coal mining. The hydraulic pressure reducing valve used is critical to the stability of the equipment. Their engineer designed the hydraulic pressure reducing valve according to the system principle, and Liam found a 5 years experienced hydraulic pressure reducing valve supplier to test the sample. After 50 days, the equipment commissioning was not smooth, and after 1 hour of operation, the support was unstable and noisy. At first, it was thought that it was caused by the leakage of the hydraulic pressure reducing valves, but there was no abnormality after testing the hydraulic pressure reducing valves individually. Their engineer spent another 2 days checking each hydraulic element one by one, but could not find the root cause of the problem. The delivery time of the prototype was less than 2 months. The boss was worried and asked Liam to contact the manufacturer of the hydraulic pressure reducing valves to help analyze the cause. 1 week passed, Liam consulted more than 20 hydraulic cartridge valve manufacturers, but none of them gave a plan. Liam was helpless and had to continue to find new manufacturers of hydraulic pressure reducing valves. According to Liam, this is a systematic problem. Based on his hydraulic schematic diagram, video of abnormal hydraulic column test run, AAK technical team had discussion and judged that the problem was still on the hydraulic pressure reducing valves. Liam said that their engineer tested the hydraulic pressure reducing valves separately and found no abnormality. I suggested that only by redesigning the hydraulic pressure reducing valve can the potential safety hazards of the hydraulic column be solved. Perhaps Liam was half convinced, maybe there was no other choice, he paid the development cost of the hydraulic pressure reducing valves. After 45 days, AAK sent the 20 newly designed hydraulic pressure reducing valves. 2 weeks later, Liam informed that the equipment had been running for 1 week, without noise, and the support was rising steadily. It could be delivered to the customer immediately. Their engineer wanted to know how AAK designed it. AAK newly designed hydraulic pressure reducing valve has the characteristics of high nominal pressure, large flow, good opening and closing characteristics, stable performance, reliable sealing, small volume and compact structure. We design and produce from the following 3 points, which is unexpected to most of our peers. 1. From joint, valve spool, valve spool sleeve, ejector rod, spring, base, valve body, axial hole and radial hole, from material selection to processing, we have made separate plans. 2. The axial hole is connected with the lower chamber of the column. The joint of the hydraulic pressure reducing valve is provided with an unloading channel. The radial hole of the valve spool can be connected with the unloading channel. The valve spool is connected with the spring through the ejector rod, the other end of the spring is connected with the base, and the joint is fixedly connected with the valve body. 3. A sealing ring is arranged between the valve spool and the inner wall of the joint, and an O-ring is arranged between the ejector rod and the joint. A special O-ring axial seal spring balance structure is adopted. Liam privately told that his boss had increased his salary for 2 levels and listed AAK as the preferred supplier of hydraulic pressure reducing valves. AAK hydraulic pressure reducing valves, unique design skills, high manufacturing quality, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-pressure-reducing-valves- aak314

The processing difficulty of hydraulic relief valves with deep hole is a pain point in the industry. The greater the length diameter ratio, the greater the difficulty. Pablo, an American Hydraulic customer, has recently been besieged by an order for hydraulic relief valves with a length diameter ratio of 11:1. The original hydraulic relief valve manufacturer confirmed that the processing quality could be guaranteed during the quotation. However, in the actual proofing, it could not overcome the difficulty of deep hole. 3 proofs and 3 failures wasted 8 weeks. However, his customer had been pushing for the samples, and Pablo was in a dilemma. Pablo had to find new hydraulic relief valve manufacturers. Within 2 days, he contacted nearly 30 hydraulic cartridge valve manufacturers. All of them said that they can only produce hydraulic relief valves with a length diameter ratio of 5:1. Pablo realized that trouble was coming and was worried. Pablo learned that his friend Caleb purchased high-precision hydraulic cartridge valves from AAK, so he contacted us. According to the e-mail instructions and drawings of hydraulic relief valve sent by Pablo, the parameter requirements are high, that is, the tensile strength of hydraulic relief valve is 300N/cm², the compressive strength is 540N/cm², the clearance between the valve hole and the valve body is between 0.005 and 0.015mm, and the valve hole diameter is between Φ10~Φ41mm, the length of the valve body is 70mm, the maximum length diameter ratio is 11:1, and the dimensional accuracy of the valve hole is H6 ~ H7. When I saw the requirements of this hydraulic relief valve, I knew that most hydraulic valve manufacturers could not process it. Even if it is processed, its accuracy is a hidden danger. After internal discussion of AAK technical team, I replied to Pablo that AAK could send samples of hydraulic relief valves in 3 weeks, and the parameters could meet the requirements of the drawings. I felt Pablo's skepticism. Maybe the original hydraulic relief valve manufacturer also said like this but did not do it. He repeatedly emphasized the processing of the length diameter ratio and the accuracy requirements. After 20 days, AAK sent 6 samples of hydraulic relief valves. Pablo approved AAK hydraulic relief valve samples on the 5th day after receiving the samples. At the same time, he is curious that the original manufacturer failed in making samples of this hydraulic relief valve with the length diameter ratio of 11:1 for 3 times, but AAK succeeded at one time. The reason why AAK can produce the hydraulic relief valves with a large length diameter ratio mainly due to the following 3 points: 1. The long drill bit of W12Cr4V4Mo high-performance high-speed steel is selected to replace the conventional carbon tool steel drill bit. The hardness and heat resistance of the drill bit are increased by more than 1 times, and the impact toughness is also increased by 2-3 times. 2.During deep hole machining, the chips are not easy to be discharged, easily blocked or even broken. After grinding, the AAK bit reduces the resistance, and then cooperates with the cutting fluid to drill, which completely solves the chip accumulation. 3. According to the length diameter ratio, reasonably select the drilling amount, which is a skill. AAK hydraulic relief valves, good at deep hole processing, no deformation, welcome to try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valves-aak313

Dakshesh is from a hydraulic equipment manufacturing company in India. They have a batch of high-power hydraulic cylinders and need to customize hydraulic cartridge valves. Dakshesh chose a local manufacturer that has cooperated for 6 years to make samples. During the equipment commissioning, the hydraulic cartridge valve has large pressure impact, noise, and the overload overflow protection action is not sensitive, resulting in the instability of the hydraulic cylinder. The manufacturer of the hydraulic cartridge valve reported that these are unavoidable under the working condition of 450 bar high pressure. Dakshesh contacted more than 10 other hydraulic cartridge valve manufacturers, but there were no results. The engineer has urged several times, Dakshesh was in a hurry. Dakshesh wrote an email to AAK. He introduced himself that one of his hydraulic cylinder customers suggested him to contact AAK HYDRAULIC VALVE. After communication, it was learned that one of my old customers in India introduced AAK to him. Dakshesh encountered the problem of hydraulic thread cartridge under 450bar working condition. For the hydraulic cartridge valve, under 450 bar high pressure, free of impact and noise, and stable operation, it is a typical requirement of German HAWE cartridge valves. I told him that this can be solved completely by HAWE, or AAK. For cartridge valves in the high-pressure field, AAK benchmarks HAWE, because our engineers have worked in HAWE for more than 10 years, and have excellent skills in high-pressure. After 35 days, AAK sent 12 customized samples of hydraulic cartridge valves. Yesterday, Dakshesh sent an email, wishing the AAK cartridge valve a smooth start. At the same time, he told me that the hydraulic cylinder with AAK hydraulic cartridge valve is not only noiseless, but also stable. The high- power hydraulic cylinder prototype has been delivered to the customer, and he is confident to get a big order. AAK hydraulic cartridge valve has low impact, no noise and is stable under high pressure of 450bar. The key is due to 3 unique structures: 1. The outer cavity of the right end of the hydraulic cartridge valve guide valve seat is connected with personalized pressure regulating screw and lock nut. The outer side of the left end of the guide valve seat is connected with the oil replenishing valve sleeve. 2. The oil make-up valve sleeve is coaxial with the main valve spool and the main valve piston. The pressure regulating screw is connected with the guide valve spool, and the two ends of the guide valve spool are respectively located in the inner cavity of the guide valve seat and the oil make-up valve sleeve. 3. The left end of the guide valve seat and the right end of the main valve spool are connected with the first spring, and the first spring is connected with the outside of the seal body. Both the front end of the guide valve seat and the inside of the main valve piston are equipped with orifices. When high- pressure oil passes through, the impact is small and there is no noise. For the optimized AAK hydraulic cartridge valve, the oil inlet of the guide valve seat is located in the rear hole of the valve body and the oil makeup valve sleeve, which is equivalent to integrating the guide valve, main valve and oil makeup valve into the oil makeup valve. In this way, it has the dual functions of overflow and oil replenishment. High pressure resistance 450bar, small impact, noiseless and stable. AAK hydraulic cartridge valve has three advantages under high pressure of 450bar. You can also try it! https://www.aakindustry.com/info-detail , /hydraulic-cartridge-valve- manufacturers-aak49 , 4

Every day, I browse the emails or backend messages of new customers for hydraulic valves, and politely refuse anything that AAK cannot produce, because I don't want to waste their time. Last month, Gomes from Brazil left a message stating that they require hydraulic injection molding machines. We replied him that AAK only produces hydraulic cartridge valves, hydraulic manifolds, and hydraulic valve blocks. But Gomes sent another email saying that they need AAK's help in recommending supply source. I gave him the official website and contact person of the largest injection molding machine manufacturer in Ningbo. On the 3rd day, Gomes sent an email to thank us, he has already got into touch with the other party.   It is an easy thing for me in 2 minutes, perhaps it brings a good supplier to Gomes. This is a good thing and also a kind thing. Human good luck, also known as human destiny, comes from accumulating virtue and doing good deeds. There is a law of causality in the universe, where human words and actions are automatically recorded, forming causal events that allow us to encounter them. Doing words and deeds that benefit others will form a good cause and effect, and one will encounter good things in the future, which is what we call good luck; On the contrary, actions that harm others, through the law of causality, will form evil causality, that is, bad luck. When I was on the front line, my colleague fell ill and I always took the initiative to pick up his work. Even if I worked overtime until midnight, I didn't complain. I feel that helping him and completing his work will bring about consequences. In the future, when my work and career encounter difficulties, for cause and effect, I will encounter someone to help me. There are many ways to do good, and one can start with the people around them, such as showing filial piety to parents, caring for the other half, helping colleagues, friends, and even rescuing stray cats and dogs, all of which can lead to the cause and effect of good. Finally, there is a time difference from the cause to the result, and we first experience the old cause and effect that we have planted in the past. However, no effort goes in vain. As long as the cause is planted, it will inevitably bear fruit. As long as we do good deeds to help others, there will be corresponding good luck waiting for us. The law of causality is the mechanism that forms human destiny, such as birth, wealth, marriage, and so on. Without starting from causality, simply using novel and trendy methods will not improve fate in any way.   Yesterday, Gomes from Brazil said that the injection molding machine manufacturer I recommended is very reliable, and the first order has been confirmed. He said that next week, his friend will contact AAK to inquire about hydraulic valves.   I believe in causality and have a reverence for it. AAK hydraulic valve, do good deeds, do kind deeds.   AAK HYDRAULIC VALVES (577) 2023-05-06 https://www.aakindustry.com/info , -detail/hydraulic-valve-aak577

2 months ago, Jackson from the United States left a message on AAK website: I read the article "The throttling groove is changed from double to single triangle. The hydraulic counterbalance valve has no vibration. AAK makes Henry feel at ease for vacation". I feel that your hydraulic valve engineers are creative in the original design. I have a hydraulic pressure control valve. I always feel that the design is not perfect. Are you interested in redesigning it? I like to read the user's message. The first thing I do when I open the computer is to read the message and then look at the inquiry. The inquiry with "difficult and complicated problems" will facilitate the transaction. I suggest Jackson send the hydraulic pressure control valve drawings, hydraulic schematic diagrams, and the problems encountered in the current procurement of hydraulic pressure control valves. It turns out that Jackson is from a material handling hydraulic equipment company in the United States, and he has been engaged in procurement for many years and has been purchasing very smoothly. This time, he encountered a big difficulty on the hydraulic pressure control valve purchased. 1 year ago, Jackson’s company developed a hydraulic loader. After the trial, the customer advised that the sensitivity was not high during the operation process, so it was not needed any more. Their sales director was very angry and blamed the purchasing department for dragging his feet. After testing, the field engineer think that the probable cause of the problem is that the hydraulic pressure control valve has no pressure compensation function and the opening and closing speed of the valve is not ideal. So the engineer redesigned the hydraulic pressure control valve and optimized the whole hydraulic system. After 1 month, the newly designed hydraulic pressure control valve was installed and debugged. The operator reported that the equipment had been improved a lot, but he always felt that it was not perfect enough to buy. The sales director directly complained to the boss. Jackson had to constantly look for new manufacturers of hydraulic pressure control valves, but there was no substantive harvest. After half a day of analysis, AAK engineers finally found the key points. I replied to Jackson that AAK would redesign the hydraulic pressure control valve to solve the sensitivity problem he encountered. After 40 days, AAK sent 6 hydraulic pressure control valve samples. 2 weeks later, Jackson emailed us that the sensitivity of the equipment was improved by at least 30% with the new hydraulic pressure control valve designed by AAK. The user was also very satisfied and was willing to buy the equipment. The boss was very happy. The hydraulic pressure control valve newly designed by AAK belongs to the built-in zero leakage pressure compensation valve, which realizes the "zero leakage" load maintenance and the falling speed is not affected by the external load. When unloading, the hydraulic pressure control valve cuts off the signal branch, and no oil in the unloading signal branch flows back to the oil tank under high pressure, completely eliminating this part of energy loss, thus achieving the effect of accurate control, And the annual energy saving of the hydraulic loader can also reach about 10%. AAK hydraulic pressure control valve, high sensitivity and energy saving, accuracy tolerance 1μm., opening and closing for 1 second, you can also try it! https://www.aakindustry.com/info-de , tail/hydraulic-pressure-control-valves- aak312

What is the best way to beat smart Chinese hydraulic manifold manufacturers? I used a foolish enough approach. More than 10 years ago, Honeywell invited more than 20 Chinese hydraulic manifold manufacturers to their meeting room at 10:30 in their Shanghai office. I didn't really like being late and arrived at their downstairs 20 minutes early, but I was late because the property industry had shut down elevators due to special circumstances. As a result, I arrived 3 minutes late. When I walked into the conference room, I noticed that many Chinese hydraulic manifold manufacturers had not arrived. The person in charge was very angry and coldly said to me, 'Don't you know the meeting at 10:30?'? My first sentence: Sorry, I was wrong. My second sentence: Give me a chance, I believe AAK can surprise you. First, I admitted my mistake, second, I didn't explain. With so many Chinese hydraulic manifold manufacturers, you are highly regarded by the Fortune 500. You must be different from these Chinese hydraulic manifold manufacturers, otherwise how would you be selected? I just said these two words, although the other party is not happy, they will no longer scold me. When I sat down, I knew that the opportunity for grassroots to counterattack had arrived. Those pig like Chinese hydraulic manifold manufacturers came on stage, and the second Chinese hydraulic manifold manufacturer who came in was also scolded. The person immediately said, 'All the elevators downstairs have stopped for 20 minutes’, an explanation by a pig like teammate. The second, third, and fourth Chinese hydraulic manifold manufacturer pig like teammate, all explained the same reason. The other party's boss felt a bit wrong. He gave me a meaningful glance, and I immediately turned my gaze forward. With my gaze, I told the boss that these Chinese hydraulic manifold manufacturers only explain and have no responsibility. Fire at me, and I can do it. Give me the opportunity. At an internal meeting of Chinese hydraulic manifold manufacturers, when the boss speaks, young people look at their phones and computers. I used to encounter a boss when he was speaking, holding a small notebook and always looking at him with awe in my heart. Without respect for the boss, there will never be a bright future. Any boss likes me like this. Firstly, there is no explanation. Secondly, actively admit mistakes. Thirdly, always have a heart of awe. Fourthly, the boss is always right. When some Chinese hydraulic manifold manufacturers' bosses provide sales performance indicators, these sales will negotiate with the boss. When I was leading a new department before, the performance indicators given by the boss had to be increased by 5 times. I knew that other people had just negotiated with the boss, which made him unhappy. My first sentence to the boss: Thank you for giving me the opportunity, I am sure to complete it. Upon hearing, the boss knew that Kevin won't bargain, then he asked me about what requirements do I have, I answered without any requirements. The boss said, ‘Feel free to contact me if you have any difficulties’. I said, ‘thank you boss, I speak with performance, and once again, thank you boss for giving me the opportunity, I ensure to complete it’. What is communication? Express your kindness to the other person in their preferred language. Do you like such subordinates? No matter what task you assign him, he always says one word to ensure completion of the task. Once you have a task, you talk about the conditions. If there is a mistake, explain it. No one will like you. Whether facing your boss, or your clients, whenever there is a problem, I will say 2 words: my fault, or 4 words: this is my problem. If you want to stand out, or you need to win the choice of customers or bosses, you need to do something different, otherwise why would this opportunity be yours? Chinese hydraulic manifold manufacturer AAK, without explanation, my fault, my problem. AAK HYDRAULIC VALVES (675) 2023-09-19 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers-aak675

1.Two pieces full port standard lined ball valves offer high stability, rigidity and eliminating potential leak path. 2.Full port design minimizes pressure losses and increases flow capacities thus reducing energy and pumping costs. 3.Full bore design almost no fluid resistance, and good shut-off performance. 4.It features zero leakage, maintenance-free, one-piece stem and ball design, high sealing performance and can be used under full vacuum service. 5.Lower pressure drop and high flow characterized the efficiency of Youfumi lined ball valves. 6.It can work as on-off or control valve. 7.It can sustain any corrosive medium in addition to the ??molten alkali metals and fluorine elements??. It is ideal products used in chlor-alkali, industrial in organic chemicals, metal and mining, nitrogen and phosphatic fertilizers, petroleum refining, pharmaceutical etc. 8.Lining material: PFA, FEP, GXPO etc. 9.Operation methods: manual, worm gear, electric, pneumatic and hydraulic actuator.

Brandon is from a hydraulic equipment manufacturing company in Colombia. In the early stage, they developed a forging hydraulic press. The main selling point is: high speed when unloaded, and low speed when overloaded. The engineer has high requirements for the hydraulic cartridge proportional valve used and reminded Brandon to find a reliable manufacturer of the hydraulic cartridge proportional valves. Brandon chose a manufacturer who worked with their company for 5 years to sample the hydraulic cartridge proportional valve. During testing, the equipment was not smooth, especially in the process of pressure relief, the pressure and flow impact was large, the noise was loud, and the abnormal flow lead to the unstable speed of the equipment. The engineer required that the hydraulic cartridge proportional valve must be optimized. The original manufacturer had to give up after 30 days of trying, and Brandon was worried. Brandon clicked on AAK's article about hydraulic cartridge proportional control valve in B2B and left a message: Can you customize a hydraulic cartridge proportional valve with small pressure impact and accurate flow control? After communication, we learned that the original cartridge valve manufacturer could not optimize the structure. After checking his hydraulic cartridge proportional valve drawings and equipment work videos, I told him that optimizing structure was the only solution, but not 100% confidence, then no further email from Brandon. 2 weeks later, he suddenly asked about the lead time and development cost for the customization. After 35 days, AAK sent 8 hydraulic cartridge proportional valve samples. 1 month after the samples were sent, Brandon sent an email to inform that their engineers were very satisfied with the hydraulic cartridge proportional valve optimized by AAK, and the equipment was successfully debugged and was in market promotion stage. They believed that the pre-sales would not be low. AAK hydraulic cartridge proportional valve can ensure small pressure impact and accurate flow control during pressure relief. We optimized it as follows: 1. 4 symmetrical waist shaped holes were processed on the valve sleeve, which can reduce the pressure impact and sudden change of speed of the oil near the valve port, and also reduces the energy loss of the oil in the flow process. Most hydraulic cartridge proportional valve manufacturers use round holes, which are easy to process. 2. The displacement of the valve spool is controlled by the pilot control mechanism. The oil flows into the two closed areas composed of the valve spool, the control cover plate and the valve sleeve through the control cover plate, and the valve spool moves up and down through the differential pressure of its oil. 3. The valve cover is equipped with a displacement sensor to detect the displacement of the valve spool in real time, and the high-precision linear control can meet the characteristics of flow gain and smooth flow, and reduce the pressure impact during the pressure relief process. AAK hydraulic cartridge proportional control valve, with small pressure loss and precise control, you can also have a small try! https://www.aakindustry.com/info-detai , l/cartridge-proportional-valves-aak422

To be sure, there are many small and medium-sized factories with their own proprietary technologies in China, such as industrial products manufacturers with their own traditional technologies such as hydraulic valves. It is unlikely that Southeast Asian countries will replace China in 30-50 years, although consumables are gradually being replaced. Therefore, I am optimistic about China's hydraulic valve manufacturers, especially those with some proprietary technology. Over the past 13 years, AAK has adhered to 3 lines: R & D, innovation and manufacturing capacity: 1. AAK Hydraulic Valves maintain the trend of being specialized and strong. I call it "both specialized and strong". Instead of giving priority to the development of manufacturing scale, we invest money in the research and development of hydraulic valves, spend time on the innovation of hydraulic valves, and spend energy on the manufacture of hydraulic valves. Most of the manufacturing industries have learned too many lessons from "big to die". 2. AAK focuses on the R & D and innovation of hydraulic valves. It focuses on both technology and quality, and strives to be strong on both sides. Its quality benchmarks the international first-line hydraulic valve brands. The performance and function of some hydraulic valves have exceeded the domestic head hydraulic valve manufacturers, especially in the vertically segmented niche market, such as high-pressure hydraulic valves. 3. Although the production scale of AAK Hydraulic Valve maintains the original situation, there is still room for urgent orders and special orders of old customers. For industrial products, especially machine parts such as hydraulic valves, in marketing, you will find that it has nothing to do with the theories of Trout and Kotler. AAK hydraulic valves adhere to: 1）Focus on large hydraulic valve products and become our own core competitiveness. 2）The manufacturing quality of hydraulic valves, the price positioning of hydraulic valves, and the target customers constitute a triangle of a manufacturing enterprise. 3）Marketing, promotion and sales constitute a triangle of hydraulic valve business. I have always called on hydraulic valve manufacturers to improve the material grade and produce high-quality hydraulic valves, but few hydraulic valve manufacturers follow suit. Why? Because the manufacturers of hydraulic valves have extremely fierce price competition, even if you do it, you may not be able to make money after all the hardships. However, AAK hydraulic valves are used by 7 of the world's top 500 companies. For 9 consecutive years, AAK hydraulic valves have been HydraForce supplier of hydraulic valves. Moreover, AAK hydraulic valves never do market common quality, price comparison and credit business. In the face of such a competitive hydraulic valve market, why does it have no impact on the sales of AAK? Because this market is too large, the sales volume of AAK hydraulic valves is also insignificant in the high-end market of hydraulic valves. Of course, the manufacturing quality of my hydraulic valves is among the top 1%. In addition to the repurchase of AAK hydraulic valves by our old customers and our promotion soft power on Google, AAK hydraulic valves can have a fairly good life. AAK hydraulic valve, a unique road, is supported by our soft power. We insist on only cooperating with high-quality hydraulic valve customers. https://www.aakindustry.com/info , -detail/hydraulic-valves-aak311

Madison is from WHITE company in the United States. 1 year ago, he found AAK Hydraulic Valves through Google. He wanted to develop a hydraulic pilot operated relief valve. After 2 rounds of PK, AAK hydraulic valves stood out from more than 30 hydraulic valve manufacturers and received the trial order for 30pcs of hydraulic pilot operated relief valves. The trial order requires that all parameters must be benchmarked with HydraForce. I replied that AAK Hydraulic Valves is the supplier of HydraForce for 9 consecutive years. The quality of HydraForce is the most basic commitment of AAK. 1 month later, 30 samples of hydraulic pilot operated relief valves were sent out, and Madison had no response. I did't have any follow-up. As long as these samples are approved by the customer, the customer will actively feedback the test results and will come to re-purchase this hydraulic pilot operated relief valve. 1 year later, that is, yesterday, I received Madison's e-mail. I knew that it must be the re-order before I did not read the email. Madison said that after 1 year's use, AAK hydraulic pilot operated relief valve has reached the standard, and 800 more hydraulic pilot operated relief valves are needed. Madison also specifically mentioned that AAK hydraulic pilot operated relief valve is completely comparable to HydraForce in quality and function, and the internal leakage control is 20% higher than that of HydraForce, and the performance is more than 2 million times. In the past year, AAK Hydraulic Valve was the most satisfied hydraulic relief valve manufacturer of their entire technical team. Not only did the manufacturing quality match the standard of HydraHorce, but also the price was about 30% cheaper. I know that there are many hydraulic valve manufacturers in Ningbo, but there are not many hydraulic valve manufacturers such as AAK that insist on "high quality, excellent function and strong performance", perhaps not more than 3. In my early years, I understood the importance of choice from the Scrolls. One's greatest strength is the power of choice. Since its inception, AAK has made a quality positioning for hydraulic valves, which makes AAK become one of the suppliers of six top 500 enterprises in the world. AAK's strength mainly depends on 3 important points: human, machine and material: 1. AAK engineers have more than 20 years of industry experience, not only have strong design and R & D capabilities, but also know the details of each processing of products. 2. In terms of finishing equipment, AAK has the NP520X-F full-automatic universal grinder of Japan Long Island, which can achieve μ surface of the processed valve spool is like a mirror, and the precision control is excellent. 3. AAK's selection of materials will be strictly based on the customer's working conditions and requirements, including German 20CrNi2MoV high-carbon bearing steel with high wear resistance and contact fatigue resistance, 18Cr2Ni4WA high-strength alloy carburized steel etc., and most of the hydraulic valve manufacturers use 45 steel or free cutting steel. AAK hydraulic pilot operated relief valves, high quality, excellent function, strong performance, you can also try a small one! https://www.aakindustry.com/info-detai , l/hydraulic-pilot-operated-relief-valves- aak31 , 0

In March this year, Danielisadora, a Brazilian customer, sent us an inquiry, urgently needing 20 non-standard customized hydraulic flow control valves with an accuracy of 1.0μm valve hole, which is required to be completed within 1 month. Danielisadora has not cooperated much with AAK. Previously, he purchased some SUN hydraulic valves in small quantities but with high requirements. For 20 small quantities of non-standard customized hydraulic flow control valves, most hydraulic valve manufacturers were unwilling to do. After several rounds of email communication, we learned the difficulties that Danielisadora has met. In the second half of last year, Danielisadora developed a high-performance excavator, which needs a high-precision hydraulic control system as a support, reflecting the high-speed, heavy load and accurate displacement of the equipment. However, the equipment is not smooth in the commissioning stage, and the buffers at both ends of the excavator stick cylinder often fail. Their engineer was puzzled. After disassembling the hydraulic system, it was found that there was a little leakage in the hydraulic flow control valves on the oil cylinder, which was caused by the valve hole accuracy of the hydraulic flow control valves exceeding 1.0μm. The boss asked Danielisadora to solve the problem quickly, because it will miss the exhibition period after 50 days. According to the feedback of the original manufacturer of hydraulic flow control valves, he has no ability to meet the accuracy standard of the 1.0μm valve hole now and has to give up. Danielisadora was helpless. 1 week passed, no manufacturer is willing to try the order of hydraulic flow control valves. The boss had pushed the progress twice, and Danielisadora was under great pressure. Danielisadora sent me an email and urgently needed 20 non-standard customized hydraulic flow control valves with the accuracy of 1.0μm valve hole. He said that the SUN hydraulic valves shipped by AAK have never been complained about its accuracy. Frankly speaking, the 1.0μm valve hole accuracy of hydraulic flow control valves is not too difficult for AAK. After 30 days, 20 high- precision hydraulic flow control valves were delivered. Half a month later, Danielisadora informed that AAK hydraulic flow control valves were installed on the equipment, and the equipment abnormality happened last time was solved. Now the equipment commissioning was successful, and the valve hole accuracy of AAK hydraulic flow control valves was all 0.8μm, while the other hydraulic valve manufacturers connect meet the accuracy standard of even 1.0μm. AAK has owned a high-precision honing machine imported from Switzerland as early as 3 years ago, and is equipped with HDK diamond reamer. This reamer is especially skilled in high precision. The roundness of the front and rear guide is 0.005mm, the cylindricity is 0.005mm/100mm, and the roughness of the front guide is Ra0.63μm. Roughness of rear guide excircle Ra0.16μm. The coaxiality between the tool handle and the front and rear guide parts reaches 0.015mm; Therefore, the aperture accuracy of the machined workpiece can be guaranteed to be within 0.8μm, the surface roughness of reaming the aperture of hydraulic flow control valves can reach Ra0.2. A few hydraulic valve manufacturers may have high-end processing equipment, but for those with HDK diamond reamers, there will never be a third one in Ningbo. Danielisadora privately informed that the boss now attaches great importance to him, and he is responsible for all the purchases with some difficulties. AAK Hydraulic Valves is now his preferred hydraulic valve manufacturer for cartridge valves. AAK hydraulic flow control valves, with valve hole accuracy within 0.8μm, and 3drops/min, benchmarking with HydraForce quality, there are few rivals, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-flow-control-valves-aak309