Tools & Hardware

Recently, we launched a hydraulic Solenoid Operated Pressure Relieving Proportional valve equivalent to HydraForce standard part TS38-20. It is a direct-acting, single stage, poppet-type, proportional, pressure relieving valve. The regulated pressure is proportional to the input electrical current. Last April in 2022, a hydraulic cartridge valve customer in Canada found AAK when looking for a hydraulic cartridge valve manufacturer in China on Google. He sent us an inquiry list for over 40 hydraulic cartridge valves, with HydraForce Model Codes as the reference, the test order qty is 10 pcs of each, and the annual qty varies from 500 to 15,000 pcs. One of them is the HydraForce Pressure Relieving Proportional Valve TS38-20. For this model, very few cartridge valve manufacturers in Ningbo have existing production procedures, AAK does not have this model either. Due to big annual demand, customer decided to send AAK original samples to customize it. After 60 days, AAK finished the prototype development and delivered the 10 pcs of test order. This August, we were very happy to learn from the Canadian customer that AAK Pressure Relieving Proportional Valve E-TS38-20 has passed their internal testing after 1 year of use, they are preparing for the 2024 buy plan and will send us the official order very soon. AAK hydraulic pressure relieving proportional valve 2 advantages: 1. Hysteresis of 250Hz Flutter: 3.3% (Max.7% no flutter), benchmarking HydraForce quality 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-TS38-20 pressure relieving proportional valve: Operating Pressure: 241 bar (3500 psi) Flow rating: 11.4 lpm/3 gmp    Pressure drop: 20 bar (290 psi) Note: Cartridge only (A) 10 bar (150 psi) Note: Cartridge only (B) 5.5 bar (80 psi) Note: Cartridge only (C) Hysteresis of 250Hz Flutter: 3.3% (Max.7% no flutter) Flutter Frequency: 150 Hz or higher Channel: Free flow 1 to 2, coil de-energized; Relieving: flow 1 to 2, coil energized. Step response: T(open)﹤50ms; T(close)﹤7ms;  Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties Fluid viscosity range: 7.4 to 420 cSt (50 to 2000 ssu) Temperature: - 40℃ ~ + 120℃ (Standard Buna N seals) Cavity: 08-2 The newly launched AAK E-TS38-20 pressure relieving proportional valve, benchmarking HydraForce TS38-20, has been approved by customer in Canada after 1 year of testing. You are welcome to try it out. AAK HYDRAULIC VALVES (669) 2023-09-11 https://www.aakindustry.com/info , -detail/proportional-valves-aak669

At the beginning of June, Trinidad, a Spanish customer, emailed us a re-order for 600 hydraulic pressure control valves, which has been repeated for 5 consecutive times since the sample was successful in the second half of last year. The high-frequency repeat orders also mean that their equipment sales are booming. Since using AAK hydraulic pressure control valves with 1μm accuracy tolerance and opening and closing property of 1 second, their equipment sales increased by nearly 40% year-on-year. Trinidad, the purchasing manager, was also promoted to director. In the second half of last year, Trinidad was anxious to purchase a batch of hydraulic pressure control valves for hydraulic swing milling and riveting machines. Because the equipment had high requirements for the accuracy and opening and closing of hydraulic pressure control valves, Trinidad spent 2 weeks looking for more than 20 hydraulic pressure control valve manufacturers, and none of them was 100% sure to be successful. Trinidad selected the 2 most suitable manufacturers to make samples. 45 days later, although the trial run of the riveter was successful, the working efficiency of the equipment was not high and the sales were not optimistic. Their engineer said that to change this situation, they must adopt the hydraulic pressure control valves with accuracy tolerance and opening and closing property of 1 second. Trinidad had a big headache due to this purchase. By chance, Trinidad got into touch with me through the introduction of AAK's old customer Burgos. After discussing the drawings of his hydraulic pressure control valve, our technical team basically already knew it. After 30 days, 20 hydraulic pressure control valve samples were sent out. 2 weeks later, Trinidad informed that the working efficiency of the equipment was at least 20% higher than before, and the accuracy tolerance of the hydraulic pressure control valve was controlled within 1μm, the opening and closing performance is less than 1 second, which is great. As early as 5 years ago, AAK had Japanese ultra-high precision machine tools for processing in the military industry, which were operated by specially assigned personnel. There are no more than 3 hydraulic cartridge valve manufacturers who have such machine tools in Ningbo. To make sure that the accuracy tolerance of hydraulic pressure control valve is controlled within 1μm, the opening and closing performance is less than 1 second, valve hole processing is the core, and AAK has 3 advantages to guarantee it: 1. On the equipment, the machining accuracy of our machine tools for components can reach 0.1-0.8μm. , the valve hole accuracy of each hydraulic pressure control is the same, while the valve hole accuracy of most hydraulic cartridge valve manufacturers can only reach 1-3μm at most. That is, the machining accuracy of AAK is more than 10 times that of them. 2.In terms of process, it realizes the personalized customization of the valve hole accuracy of the hydraulic pressure control valves, and 95% of domestic hydraulic valve manufacturers just make the general size of the industry. 3.In terms of detection, the German Diatest small pore diameter high-precision measuring instrument is used to accurately measure each hydraulic pressure control valve hole, and the minimum measurement accuracy range can reach 0.1μm. Some time ago, Trinidad privately informed that their equipment sales were becoming, more and more popular, and he was promoted to purchasing director. AAK hydraulic pressure control valves, accuracy tolerance 1μm. Opening and closing for 1 second, it is difficult to find competitors in Ningbo, you can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-pressure-control-valves- aak294

AAK hydraulic pressure control valves with pressure resistance above 450bar and high frequency use for more than 1 year without wear. After a year of trial, Romero reordered 800 hydraulic pressure control valves last week. Romero is from a hydraulic equipment company in Spain, and he is an old hand in purchasing hydraulic cartridge valves in China. At the beginning of last year, their company tested a hydraulic crushing hammer, which needed a hydraulic pressure control valve. After first round of factory comparison, Romero selected one factory to test the hydraulic pressure control valves. One month later, the hydraulic crushing hammer sample was successful. However, after 3 months of trial use, their customer found that the impact frequency decreased by more than 30%, which should be due to the insufficient power supply caused by the leakage of the hydraulic pressure control valves. After disassembly, it was found that there were obvious impact wear marks at the valve sleeve. According to the feedback of the original hydraulic pressure control valve manufacturer, the working pressure of the hydraulic crushing hammer is more than 450bar. If the frequency of use is too high, wear is inevitable, but the customer is not satisfied with the service life of the crushing hammer, and the purchase can be made only after the warranty of more than 1 year. The boss was unwilling to lose the order for the equipment that they spent several months to develop. Romero was asked to look for hydraulic pressure control valves with a warranty of more than 1 year and high pressure resistance, but nothing was gained after 2 weeks. Romero felt a big pressure. From the inquiry email he sent me, I can feel his helplessness. The requirements of this hydraulic pressure control valve are different from those of standard parts, especially in precision and durability, but AAK is confident to make it successful. After 40 days, AAK sent 30 samples of hydraulic pressure control valves. During this period, Romero just informed us that he had received the samples, and there was no further news within 1 year. Until last week, he suddenly placed the reorder, and in the email, he thanked AAK for providing a hydraulic pressure control valve with 1 year warranty, so that they won the order back, and there was no after-sales service needed within 1 year. For the hydraulic pressure control valves that can withstand 450bar high pressure and has no worries for more than 1 year, in Ningbo hydraulic cartridge valve industry, AAK has no competitors. We use 3 advantages to be different from peers: 1. In terms of materials, the valve body is made of SCM415 chromium molybdenum steel alloy steel from Japan, and its process and mechanical properties are more than 70% stronger than those of similar materials. After carburization and heat treatment, the hardness is more than HRC64, and the wear resistance and strength are also increased by more than 3 times, ensuring no wear for more than 1 year. However, the processing of this material is difficult to control, which is also the reason why peers do not choose this material. 2. In terms of equipment, GILDEMEISTER turning milling complex machining center imported from Germany is used to achieve efficient and accurate processing. At present, most hydraulic cartridge valve manufacturers do not have such equipment. 3. In terms of detection, after the hydraulic pressure control valves are assembled, they are tested with the high-pressure test bench and durability test equipment independently developed by AAK, the pressure, flow and fatigue resistance of the valves can not escape from the eyes of Monkey King, ensuring 100% qualification. AAK hydraulic pressure control valves, careful material selection, fine machining, fine inspection, you can also have a small try! https://www.aakindustry.com/info-d , etail/hydraulic-pressure-control-valves- aak293

Logan, a German hydraulic customer, left a message on AAK Hydraulic Valves website some time ago: Are you able to process the hydraulic relief valve with deep cavity and precision hole? After getting his hydraulic relief valve drawing, it is indeed difficult to process. Logan told us that he had contacted more than 20 hydraulic relief valve manufacturers, and all of them said that they were not able to process the “very deep cavity and very small hole". Five days passed, even the factory was still not determined. The boss was very dissatisfied, and he couldn't sleep at night. According to his drawing requirements: the deep cavity of the hydraulic relief valve is Φ 16mm, the depth reaches 40mm, and the small hole in the deep cavity is Φ (0.5 ± 0.02) mm, and the top of the small hole is with a convex sealing surface, with an outer circle Φ 1mm, the diameter of the small hole is 0.5mm, the depth is 5mm, and the coaxiality between the deep cavity small hole and the convex sealing surface is required to be Φ 0.01mm, and the verticality between the convex sealing surface and the deep cavity is required to be 0.01mm. I told him that this processing must be completed by clamping at one time without any deflection, otherwise the accuracy is difficult to meet the standard. The headache is that the ratio of diameter to length of the small hole in the deep cavity of this hydraulic relief valve is 1:10, which belongs to deep hole processing, and the small hole is inside the deep cavity. For such a complicated hydraulic relief valve that is extremely difficult to process, if AAK can't handle it, it is not necessary to try any other hydraulic cartridge valve manufacturers in Ningbo. Logan asked me how confident AAK was that the sample would be successful. When he learned that AAK was only 80% sure, he considered for a long time, and finally decided to have a try, paid the development fee, and confirmed the trial order. AAK technical team discussed and simulated for 2 days, and determined the scheme of optimizing processing technology. After 4 weeks, AAK sent 5 samples of hydraulic relief valves. Two weeks later, Logan's email came with admiration and thanks. He didn't expect that AAK sample was successful at one time. The precision of the deep cavity and small hole of AAK hydraulic relief valve samples reached the standard, and all the parameter requirements were completely consistent with the drawing requirements. Logan is curious that all other hydraulic relief valve manufactures were not able to try this order, how does AAK overcome the difficulty of the deep cavity and small hole accuracy? According to the requirements of precision parameters of deep cavity small holes in the drawing, AAK has made 3 optimization points in processing technology: 1. Design the clamping setting of drilling tools to increase the rigidity of the drill bit. 2. Improve the drilling tool. In order to ensure the surface roughness requirements of deep cavity holes, after rough machining with twist drill, finish machining with reamer. 3. The design is equipped with a drill sleeve to realize manual feed drilling. Mechanical feed cannot feedback the cutting force. By manual feed, the feed rate can be effectively controlled to avoid drilling deviation and meet the parameter requirements. Of course, most manufacturers cannot master the details of this operation. AAK hydraulic relief valve has unique skills in processing deep cavity holes. You are welcome to try the order! https://www.aakindustry.com/info-det , ail/hydraulic-relief-valves-aak292

Chaika is from Pakistan, and has cooperated with AAK for hydraulic cartridge valves for more than 3 years. His boss trusts him very much. At the beginning of last year, a number of their hydraulic paper cutters were complained by customers. The problem was that the hydraulic directional cartridge valve spool was worn and stuck. His boss was surprised. In the purchasing from AAK for more than 3 years, there was no quality complaint about the hydraulic directional cartridge valves. After checking, it was learned that this hydraulic directional cartridge valve is a standard part of HydraForce. Chaika found a manufacturer that is 20% cheaper than AAK to place the order. The boss asked Chaika to re-purchase the hydraulic directional cartridge valves from AAK for replacement. Chaika candidly told us the problems encountered on this hydraulic directional cartridge valve, and needed the help of AAK, to urgently produce 50 hydraulic directional cartridge valves within 30 days. After 25 days, AAK successfully delivered the hydraulic directional cartridge valves. 4 weeks later, Chaika informed that the problem of the equipment being complained about had been solved. This time, the boss was not happy and the customer was not satisfied, which made him under great pressure. He thanked me for solving the problem of the hydraulic directional cartridge valve in time. I told him that although AAK hydraulic directional cartridge valve is 20% more expensive, its service life is twice that of its peers, it has stable manufacturing quality, durable and fault-free, due to the following 3 efforts: 1. In terms of material, AAK hydraulic directional cartridge valve, the spool is made of 100Cr2 bearing steel, and then targeted heat treatment. Permeating at 820-830 ° high temperature for 13 hours, then oil quenching, - 60 ° to - 70 ° cryogenic treatment,+150 ° to+160 ° tempering treatment. Not only is the molecular structure uniform, but also the hardness is increased to HRC68. The valve spool with good wear resistance and high strength, ensures that the service life of AAK hydraulic directional cartridge valve is twice that of its peers. 2. In terms of processing, the processing accuracy of AAK hydraulic directional cartridge valve can reach 0.01~0.3μm by Japan OKK ultra-precision machine tool. And the production efficiency is more than 30% faster. Under the operation of our old technician for more than 30 years of experience, the components processed have no defects. 3. In terms of detection, the German Diatest small micro-pore diameter measuring instrument is used to check and accurately measure the valve hole of AAK hydraulic direction cartridge valve, and the measurement can reach 0.1μm. AAK hydraulic directional cartridge valve, although more expensive by 20%, it has a service life of 2 times that of other cartridge valve manufacturers in China. Welcome to have a try! https://www.aakindustry.com/info-detai , l/directional-cartridge-valves-aak489

Mayer has been working in a hydraulic equipment company in Brazil for 3 years. In the first half of this year, they customized a hydraulic power unit for a customer. The pressure supply range is 20bar to 450bar. 3 direct-acting cartridge relief valves, high, medium and low pressure, are used. The equipment was debugged smoothly, and the customer was also very satisfied. However, the batch order was stuck because of the price. The customer reported that the price of similar equipment in the market was 20% cheaper than theirs, and requested that the price of this hydraulic power unit be reduced by 15% before the batch order could be confirmed. The boss asked the engineer to optimize the system to reduce cost. The engineer said that the only way to reduce the cost was to combine the 3 cartridge direct-acting relief valves into 1. The original cartridge relief valve manufacturer was powerless. Mayer contacted more than 10 cartridge valve manufacturers. They were either not interested or unable to optimize. 2 weeks later, no results were achieved. Mayer was worried. Mayer browsed AAK hydraulic valve in Google and left a message: 1. Can you customize the cartridge direct-acting relief valve with the applicable pressure range of 20bar to 450bar? 2. The original system uses 3 high, medium and low pressure cartridge relief valves. Can they be combined into 1 without affecting the function? 3. What is the lead time and cost for sample development? According to his message, I judged that either the cost was challenged or the customer was dissatisfied with the system. After communication, I learned the trouble he faced. Based on his production drawings of cartridge direct-acting relief valve and the system principle of the equipment, AAK engineers had a discussion and came out a plan, but only 90% is sure. Mayer may be hesitating and did not give us any news for a week. I thought he chose another cartridge relief valve manufacturer, but I suddenly received his trial order. After 50 days, 10 samples of AAK newly designed cartridge direct-acting relief valves were sent out. 1 month later, Mayer sent us a PO for 360 cartridge direct-acting relief valves, and mentioned that AAK newly designed direct-acting cartridge relief valves were used in equipment, and did not affect its functions, and helped them reduce the cost by more than 15%. Only then did customer place order for bulk equipment. According to the 3 levels of pressure, AAK has changed the structure of the original hydraulic direct-acting cartridge relief valve, reducing the manufacturing cost by more than 40%, in the following way: 1.A spring is arranged between the poppet valve spool and the pressure regulating screw plug, and the vertical position at the front end of the poppet valve spool corresponds to a cylindrical oil chamber, which is connected with the oil inlet hole. 2.The horizontal position at the front end of the poppet valve spool corresponds to the oil return hole. At the same time, a thrust belt is arranged around the front end of the poppet valve spool, and the poppet valve spool is provided with an oil hole. 3.The pressure oil enters the cylindrical oil chamber from the oil inlet hole, and the oil pressure acts on the thrust ring. When the generated thrust is less than the spring pressure, the poppet valve spool is closed; when its thrust is greater than the spring pressure, the poppet valve spool opens the overflow, which is suitable for the generalization of high, medium and low pressure overflow. Mayer told me privately that he was promoted to the position of purchasing manager a few days ago, and he was more and more energetic. AAK hydraulic direct-acting cartridge relief valve is applicable to all kinds of pressures. You can also have a small try! https://www.aakindustry.com/info-detai , l/cartridge-relief-valves-aak418

Nowadays, there are involutions everywhere in China, and so do the hydraulic cartridge valve manufacturers. The reason why you feel serious involution is because you are taking money from someone else's pocket. If you don't want to be in involution, go pick up the money on the ground. In the era of increment, the land is full of gold. Various hydraulic cartridge valve manufacturers are desperately picking it up. At this point, if someone steps on you, will you hit him? Not available. Don't stop me from picking up gold. In the era of stock, there was almost no gold on the ground. At this point, if a hydraulic cartridge valve manufacturer steps on you, will you hit him? Not only did you kill him, but also snatched the gold from his pocket. Hydraulic cartridge valve manufacturers feel that competition is becoming increasingly fierce, it is becoming increasingly difficult to make money, and they feel that they must do their best to live the life of ordinary people. So what should we do? The most direct way is to snatch money from someone else's pocket. This is also what every hydraulic cartridge valve manufacturer is doing today. For example, if a customer wants to purchase a hydraulic cartridge valve, there are 3 hydraulic cartridge valve manufacturers in front of the customer: A, B, and C. If you choose A, you cannot choose B or C. The same goes for choosing B and C. So, are you going to choose A, B, or C? Many hydraulic cartridge valve manufacturers have racked their brains for this issue - competing for price, service, and quality. What exactly is' snatching money from someone else's pocket? That is, strive for excellence without changing the original model. This pursuit of excellence must have eliminated many manufacturers of hydraulic cartridge valves. But in fact, each of us is enjoying the result of this' money grabbing '. Recently, SUN launched a new type of hydraulic cartridge valve, priced at $269/pc on its official website, which is high. However, it cannot be denied that the manufacturering of this hydraulic cartridge valve is demonstrating excellence. Where is the essence? The valve cage is made of high-strength alloy steel, and the valve spool is made of wear-resistant customized bearing steel. The sealing adopts PU polyurethane rubber sealing rings and a dual mode with PTFE retaining rings. The appearance is made of galvanized nickel alloy. Regardless of processing accuracy, product functionality and performance, take it to the new level. This valve will become the blueprint for different hydraulic cartridge valve manufacturers. As long as we follow the "formula" above to design, the performance will probably not be poor. All hydraulic cartridge valve manufacturers follow this formula and work tirelessly. The result of doing so is a price reduction, and SUN cannot escape the entire cycle. As a user, of course, we hope that the hydraulic cartridge valve manufacturers can be in involution. This way, you can buy better hydraulic cartridge valves at a lower price and enjoy better service. But as a manufacturer of hydraulic cartridge valves, I only think it's too involuted! The involution brings results, which we want. The involution brings competition, and we don't want it anymore. So, hydraulic cartridge valve manufacturers repeatedly struggled between participating and not participating. We put a lot of effort into how to steal money from others' pockets. Of course, it has also created some small actions under the table and distorted thoughts from hydraulic cartridge valve manufacturers. Can we demand both lower prices and better products and services, while also avoiding such competition? Of course there are. That's to go pick up the money on the ground. So how do we pick up the money on the ground? It is a thing that very few people are doing today. Can AAK do it? We are thinking and on the way. With the eye of insight, see users, see needs, see waste, and see value, instead of just staring at the little money in someone else's pocket. Let's make for it together. AAK HYDRAULIC CARTRIDGE VALVES (668) 2023-09-08 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak668

Last October, our old Russian customer Matben sent me a video with the following message: take a look at the leakage of the hydraulic sequence valve in the equipment. Is there any way to solve the leakage problem? I was startled when I first read the email, thinking that there was a leak in the hydraulic sequence valve we previously shipped. I opened the video and took a closer look to find that there is a leak at the adjusting screw of the hydraulic sequence valve. The leakage at this point is a common problem for most hydraulic sequence valves and a challenge for most hydraulic sequence valve manufacturers. However, AAK has a clever solution to solve this small detail to avoid any leakage. After communication, it was learned that it was not the AAK hydraulic sequence valve that was leaking, nor was it their company's equipment that malfunctioned, but rather his friend Arata's equipment that was malfunctioning. Arata's hydraulic sequence valve was purchased from a hydraulic cartridge valve manufacturer in Ningbo and used in their mining equipment. After 6 months, the customer complained that the equipment would shut down. The root cause was a leak at the adjusting screw of the hydraulic sequence valve. The original manufacturer of the hydraulic sequence valve replied that the hydraulic sequence valve can only be used continuously in mining equipment, ensuring a service life of 6 months. The only solution to complaints is to replace the hydraulic sequence valve once every 6 months. Arata knows that neither his boss nor his client will accept such a costly and time-consuming after-sales service. Arata spent a week on sourcing but did not find a reliable manufacturer of hydraulic sequence valves, so he asked help from Matben, and I had the opportunity to see this video of hydraulic sequence valve leakage. I told Arata that the hydraulic sequence valves AAK supplied to Matben can work continuously for 10 hours a day and have a service life of over 1 year. This can be verified with Matben. Arata told me that this is the reason why he came to AAK and also the reason why Matt recommended AAK to him. After 40 days, AAK sent 20 samples of hydraulic sequence valves. 3 months later, Arata informed us that after internal testing, the service life of AAK hydraulic sequence valve exceeded 1 year without problem. He asked me to prepare the materials asap. They will place the regular order for this hydraulic sequence valve in a few days. AAK has a solution to the leakage at the adjusting screw of the hydraulic sequence valve, to address this small detail: 1.AAK hydraulic sequence valve O-ring, select the matching sealing ring from the aspects of structure, material fatigue resistance, medium, and aging cycle. 2.The screws used in the AAK hydraulic sequence valve have a performance level of 12.9, which is higher than the industry standard and has higher pressure resistance and is not easy to loosen. The service life has been increased by 30%. 3.AAK hydraulic sequence valve, 100% full inspection, controlling leakage from the source. AAK hydraulic sequence valve, small details, small tricks, works well, you can also give it a try! AAK HYDRAULIC VALVES (571) 2023-04-27 https://www.aakindustry.com/info , -detail/sequence-valve-aak571

The guard told me on Monday that there was an international parcel in the office. From the shipment airway bill, it was a sample of hydraulic valve block from an old American customer Zero. I was a little puzzled. Zero only purchases hydraulic cartridge valves from AAK. I didn't know why he sent me the hydraulic valve block sample until I read all the emails today. Zero introduced in the email that he purchased this hydraulic valve block from a friend, the quantity was not big, just 100 pieces. The hydraulic valve block was easy to leak after being used for a period of time. He didn't know the source of the leak and asked me to help have a check. After the pressure test and inspection, our technician analyzed that the leakage was serious and the pressure could not reach the pressure value of the system. I told Zero that the original manufacturer of this hydraulic valve block judged that the hydraulic valve block was qualified without strictly controlling the data in the pressure test stage. For this kind of hydraulic valve block, AAK did this in the pressure test stage, and this method has been used since 5 years ago. After the production of the hydraulic valve block is completed, start the pressure test. First, adjust the throttle valve opening on the hydraulic valve block to the maximum, and at the same time, adjust the pressure valve adjusting spring to a very loose state, and then gradually increase the pressure. When the pressure reaches the required test pressure, our pressure holding time is 10min, while the pressure holding time of most hydraulic valve block manufacturers is 3min. The problem is easy to be exposed if the pressure is maintained for a long time. If there is leakage during the pressure maintenance, the source can be traced, and special treatment of sealing glue can be added at the joint surface. At the same time, after the test is completed, adjust the relief valve on the hydraulic valve block to the set pressure value required by the system to achieve the internal pressure balance of the valve block system. Few manufacturers do this step. Zero realized that only AAK could ensure that there was no leakage in the hydraulic valve block, so he asked me to arrange 100 hydraulic valve blocks on the production line in a hurry. The pressure maintaining test is the key to check the leakage, but to produce a leak-free hydraulic valve block, AAK do these in production: first, select the appropriate processing material according to the working conditions of the customer's hydraulic valve block, and ensure that the internal organization of the processed valve block material is dense, without foreign objects, sand holes and other defects. If necessary, flaw detection will be carried out on the blank material. Secondly, the control of machining precision is also very strict, and the machining of all threaded holes on the valve block is guaranteed to be above 7H; In addition, the perpendicularity tolerance between the screw hole of the installation pipe joint and its external mating surface shall be at least Class 8. For picky hydraulic valve blocks, production is the core and detection is the key. AAK strictly controls these 2 processes to ensure that the hydraulic valve block has no leakage. There are not many manufacturers who can achieve these 2 details. It is not that they don't want to do it, but that they don't have enough ability to control the details. AAK hydraulic valve block, no leakage, welcome to try! https://www.aakindustry.com/info-detai , l/hydraulic-valve-blocks-aak291

Last week, once a hydraulic manifold drawing was approved, the customer wired the full payment of more than US$50,000 US dollars at one time, and the delivery was 2 months later. This is a customized hydraulic manifold. It is the first order from an Italian customer. It is the first time for him to cooperate with AAK Hydraulic Valves. I think behind his action is his trust in AAK Hydraulic Valves. If we say what is the most important asset in the future, I think it is "trust". If what is the most terrible risk in the future, I think it is "lack of trust". Some customers agree with the manufacturing quality of AAK Hydraulic Valves, know that AAK is the supplier of the first brand of hydraulic valves (HydraForce) for 9 consecutive years, and know that although AAK Hydraulic Valves are 20% more expensive than their peers, its service life is twice that of their peers, but they don't place orders. Why?   There are only 2 reasons: first, he is not a customer of AAK. Second, customers do not trust AAK enough, or AAK does not deliver enough trust. So trust is very important for the first order customers. Is it your customer? This is a very interesting topic. One third of the customers and you are predestined, trust each other, and work with him at the same frequency, and feel not tired; One third of the customers have no fate with you. No matter what you do, there will be no reply after you quoted the price; One third of the customers need to be won over and moved. This is what I think and do in regards of trust. First of all, learn to trust others, but also learn to be trusted. Those who can trust others are lucky mountains. You dare to trust others, which proves that you need the help of the other party, and it also proves that you are willing to give your back to the other party, not afraid of being stabbed by him. Then, expose yourself in exchange for more cooperation. If you always guard against others, there is no possibility of cooperation. Trust others and give my back to them. If you rely on others, others also rely on you. And the person who can be trusted is a powerful sea. Yes, the customer of AAK Hydraulic Valves is lucky mountain, and AAK is the strong sea of customers. Finally, it is the transmission of trust. If others want to cooperate with you as soon as they see you, because you can help others. If I help more people, it will be my motivation and responsibility. For AAK Hydraulic Valves, the customer is mountain, we are the sea. https://www.aakindustry.com/info-detai , l/hydraulic-manifolds-aak290

Last Wednesday, there was a repeat order from Peppe for a hydraulic valve block, which was tested in the second half of last year. Peppe required that the repeat order quality should be 100% burr free as same as the hydraulic valve block tested samples last year. Peppe comes from a hydraulic equipment company in Italy. At the beginning of last year, the paper cutter equipment they sold would stop automatically and was complained by customers. It was found that the hydraulic relief valve was stuck on the site, and the after- sales servicer thought that there was a problem with the hydraulic relief valve. After the original hydraulic valve block manufacturer disassembled it, it was found that there were debris at the moving part of the valve spool. At the same time, foreign matters were also found in the hydraulic oil, so it was known that it was caused by the incomplete burr cleaning of the hydraulic valve block. The original hydraulic valve block manufacturer also does not deny it. The burr cleaning of the inner cavity of the oil channel, the cross hole and the blind hole of this hydraulic valve block was indeed less than 100%. As long as the hydraulic oil can be replaced every 3 months, the problem can be solved. Peppe was very speechless and had to find a new hydraulic valve block manufacturer, and deliberately required 100% burr free. She contacted more than 10 hydraulic valve block manufacturers, they either gave no reply or could only have a try, but Peppe didn't have time to test, and began to worry. Peppe noticed the introduction of "100% burr free hydraulic valve block" in AAK on Google, so she directly sent us an email. I told her, "according to your hydraulic valve block drawing, there are many inner cavities and cross holes in the oil duct, especially the burr cleaning at the blind hole is a difficult problem. The traditional abrasive flow deburring method to remove this hydraulic valve block has hidden dangers. AAK suffered from it 5 years ago, and it was not until we used the new deburring technology that we dared to ensure 100% burr free". Peppe asked us to make samples as soon as possible. A month later, AAK sent 5 hydraulic valve blocks. 6 months later, Peppe emailed us that the paper cutter installed with AAK hydraulic valve block has been working normally. I told her that AAK adopted an intelligent grinding processing system to replace the traditional abrasive flow process. If this hydraulic valve block is deburred with abrasive flow, and the blind hole is easy to form a dead corner. The intelligent grinding and processing system can realize automatic solution. In the grinding process of the hydraulic valve block, with continuous power support and stability, the main shaft of the equipment can swing 360 °, which can realize the grinding of any angle and any inclined plane. No matter in the fixture positioning, or in the automatic optimization compensation of the simulation path simulation of the hydraulic valve block structure, the intelligent grinding processing system has no dead corner. No matter the surface of the hydraulic valve body, or the inner hole, cross hole, blind hole of the hydraulic valve block, as well as the end face and inner and outer contour of the orifice, the burrs can be completely removed. AAK hydraulic valve block, no burr, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-valve-block-aak289

Andrea is from a British hydraulic equipment company. At the beginning of last year, they received an inquiry for hydraulic cylinders used in national defense military equipment, which needed to use hydraulic check valves. The specific requirements for the hydraulic check valve are: internal leakage 2drop/min, surface roughness Ra 0.1-0.2μm, concentricity tolerance of valve spool and valve hole is 0.005-0.01mm. These 3 requirements are more than twice as high as the standard parts of hydraulic check valves. Andrea realized the difficulty of purchasing, and contacted more than 10 hydraulic check valve manufacturers online and offline. Except for an old supplier who had cooperated for several years told her that he was 90% confident to meet the requirements, all other manufacturers could not achieve these 3 requirements. After 45 days, the hydraulic check valve sample was installed on the oil cylinder, and less than 12 hours after commissioning, the hydraulic cylinder was running unstably during reciprocating motion. During disassembly, the engineer found that the hydraulic check valve had internal leakage, which exceeded 2 drops/min, and the concentricity tolerance also exceeded 0.01mm during testing. Andrea was helpless and had to continue to look for new hydraulic check valve manufacturers. More than 1 week had passed, the manufacturer had still not been confirmed yet. Andrea was urged by her boss and got anxious. Andrea browsed AAK website in Google and felt that AAK could help her. She sent an email to ask about it, and we learned about the purchasing difficulties she encountered. According to the hydraulic check valve drawing and the schematic diagram of the whole hydraulic system provided by her, there are few hydraulic valve manufacturers who can meet the accuracy requirements of this hydraulic check valve. After discussion, our technical team replied to Andrea the next day that AAK was able to develop this hydraulic check valve. The development cost of this hydraulic check valve was at least US$2,000. 2 days later, Andrea directly placed a trial order and paid the development fee. 45 days later, AAK sent 30 samples of hydraulic check valves. 1 month later, Andrea told us that the test run was successful, and the boss was very satisfied that she found AAK, The success of AAK ultra-high precision hydraulic check valve lies on the following 3 points, which is also why Andrea only found AAK to try this hydraulic check valve. 1. AAK uses a precision honing machine imported from the United States. After honing, the accuracy of the hydraulic check valve hole is IT7 ~ 4, and the surface roughness Ra value can reach 0.1-0.2μm, so as to ensure that the internal leakage reaches the requirement of 2 drops/min. 2. After processing, use the Mahr cylindricity meter imported from Germany to accurately measure each part of the hydraulic check valve through EasyForm software to ensure that the concentricity tolerance of each hydraulic check valve spool and valve hole is less than 0.005mm. 3. AAK ultra-high precision hydraulic valve was used by a Russian customer in the aviation field in 2019. That is already a fact, so the military industry is not a problem, too. AAK hydraulic check valve can be used in military industry. You can also have a try! https://www.aakindustry.com/info-d , etail/hydraulic-check-valve-aak288

A few days ago, someone left a message about a tweet that hydraulic cartridge valve manufacturer AAK posted on a B2B website: Do hydraulic cartridge valve manufacturers also need to promote? At most, advertise on Google. He meant that hydraulic cartridge valve manufacturers only need to advertise. I'm not sure whether he is a hydraulic cartridge valve manufacturer or a hydraulic cartridge valve customer, but his IP is from Türkiye. Whether it is a hydraulic cartridge valve manufacturer or an individual, in this online age, it seems that they cannot do without the 5 modules of sales promotion, advertising, public relations, planning, and brand. How can these key words be connected? I think of my previous experiences in bars, various chat ups in bars, and the promotion of hydraulic cartridge valve manufacturers, which are quite similar. You go to the bar and sit down. Not long after you walked in, a girl directly approached you and said that you are tall, wealthy, and handsome. This is called sales promotion. When you get excited, you want everyone in the bar to know that you are tall, wealthy, and handsome, and then spend money to have the DJ notify everyone in the bar that you are tall, wealthy, and handsome, which is called advertising. Since the advertisement has been launched, if you want to see the effectiveness of the advertisement, ask the bar owner to arrange a private seat and chat with the girl alone, saying that you are a wealthy and handsome person who is very reliable, which is called public relations. You ordered the most expensive red wine in order to further build your high wealth and handsome appearance. The bar arranged for 10 people to queue up and deliver it to you, attracting bar girls. This is called event planning. The girl knows that you are a tall, wealthy, and handsome person, and takes the initiative to approach you. This is called brand attractiveness, or the girl has developed a sense of trust in you. The hydraulic cartridge valve manufacturer AAK in China promotes its daily content with a slow heart and diligent hands, leaving AAK's footprint everywhere on the internet. Use our manufacturing quality and service to differentiate it from the hydraulic cartridge valve manufacturer peers, and use AAK's advantages, characteristics, and professionalism to build trust in the online space. Chairman Mao said that doing a good deed is not difficult, but what is difficult is doing a good deed for a lifetime. AAK said that it is not difficult to promote once, but it is difficult to promote every day. If I am fragrant, butterflies come naturally, and I insist on manufacturing quality, and benchmark against international top brands. With our advantages, characteristics, and quality, we differentiate ourselves from other hydraulic cartridge valve manufacturers in China. Only in this way can the road be smooth. Although it may be a bit difficult, difficult roads are never crowded and eventually arrive. AAK HYDRAULIC CARTRIDGE VALVES (667) 2023-09-08 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak667

For a hydraulic cartridge flow control valve, with many internal oil passage holes in different apertures and 60 ° seating holes, and the accuracy requirement below 0.8μm, Hemendra asked the most trusted local cartridge valve manufacturer to make samples. 3 weeks later, the manufacturer found that the scrap rate of the hydraulic flow control cartridge valve was more than 60%, and the efficiency was low, so he gave up. The other hydraulic cartridge flow control vale manufacturers had little interest in making samples. After AAK took over, it adopted a five-stage forming reamer from Germany, and the cutter has several blades with different diameters. This tool, solves the processing of all oil passage holes, and the hole accuracy is within 0.5μm, 40% higher than the original requirement. AAK hydraulic cartridge flow control valve enables Hemendra to receive the order for hydraulic cylinders successfully. Hemendra is from India, and has purchased hydraulic cartridge valves from AAK for 5 years. Some time ago, one of their hydraulic cylinders needed a customized hydraulic cartridge flow control valve, but encountered difficulties. He contacted me. After communication, I learned the difficulties he encountered in local hydraulic cartridge valve manufacturers. Because of the wasted time in the early stage, he needs AAK to send the hydraulic cartridge flow control valve sample within 40 days. According to his drawing, it is difficult to process the valve hole, but AAK has experience in this aspect. After 35 days, AAK sent 20 samples of hydraulic cartridge control valves. During CNY, Hemendra told me that the customer was satisfied with their hydraulic cylinder prototype and would like to place the annual order. He asked me to give priority to his orders for the hydraulic cartridge flow control valves. Hemendra also specially thanked me. The sample of AAK hydraulic flow control cartridge valve is not only delivered fast, but also stable in manufacturing quality, especially the valve hole accuracy reaches 0.5μm, which is 40% higher than the original requirement. AAK hydraulic flow control cartridge valve, in the finishing process, uses five-stage forming reamer, which is from Germany, and has multiple blades with different diameters. A tool, solves the processing of all oil passage holes, and the hole accuracy is within 0.5 μm, which is 40% higher than the original requirement. The reamer has a plurality of cutter teeth, and the reamer body is provided with a cutter bar, a cutter handle and a cutter. The reamer body is connected with the machine tool through the tool handle. The five-stage forming reamer can easily shape the 60-degree seat face. It is tapered and can be positioned. Especially, the tool has multiple blades with different diameters. Under the operation of our skilled workers for more than 30 years, the processing efficiency is high and the accuracy is guaranteed. AAK hydraulic flow control cartridge valve, is processed with good tool, by good craftsman, with high precision, you can also try it. https://www.aakindustry.com/info-detail , /flow-control-cartridge-valves-aak487