Mechanical Hardware

Renzo is from Italy. As an old purchaser of the company, he has been doing very well before. The hydraulic directional control valves purchased at the beginning of last year distressed him. One of their high-pressure hydraulic supports had leakage due to corrosion of the hydraulic directional control valves 6 months after sales, resulting in instability of the support. The original hydraulic directional control valve manufacturer thinks that the corrosion is caused by the extreme working environment and cannot be completely improved. Renzo realized that trouble was coming and began to contact the new hydraulic directional control valve manufacturers. However, after 2 weeks, no hydraulic valve manufacturer guaranteed that it would not corrode for 1 year in an environment with high sulfur and wax oil content and low temperature, Renzo was worried. Renzo found AAK hydraulic valves in Google and left us a message: can you produce hydraulic pressure control valves that can guarantee non corrosion in extreme environments for more than 1 year? I told him that it depends on the working environment and the drawing requirements of the hydraulic directional control valve. According to the information provided by Renzo, after 1 day of discussion, AAK technical team is 90% confident to be successful. Maybe Renzo had no choice, and paid the development fee the next day. Material selection is the key to solve corrosion. After 3 times of material selection and 6 times of testing, AAK technical team completed and sent 24 samples of hydraulic directional control valves 60 days later. Last week, Renzo informed by email that it had been 10 months since their hydraulic support was installed with AAK hydraulic directional control valve, and there were no complaints of corrosion and leakage. I told him to be relieved that there would be no complaints within 1 year. Why did the AAK hydraulic directional control valve is corrosion-resistant for more than 1 year, while the other hydraulic valve manufacturers failed in 6 months? Monel 400 alloy steel is selected for this hydraulic directional control valve. The material is based on nickel metal, and copper, iron, manganese and other elements are added. Its corrosion resistance is more than 3 times that of conventional steel, especially in the geological exploitation of high sulfur and high wax oil reservoirs. At the same time, its mechanical properties have been improved by more than 30%, and it is friction resistant in low temperature environment. Besides, Monel 400 alloy steel has another feature, which is not easy to produce stress corrosion cracks, and is mostly used in aerospace, marine and oil and gas industries. Although the material cost is 2-3 times higher, AAK needs to choose the best option. Even if it's 2-3 times more expensive, still choose the best. Because AAK can't make things that are not good enough, let alone supply them to consumers. AAK hydraulic directional control valves, material selection with heart, you can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-directional-control-valves- aak342

Monroe is from Turkey, and has cooperated with AAK for 3 years. He purchases cartridge valves equivalent to HydraForce standard parts 3-5 times a year. Some time ago, he emailed me to ask: Can you customize non-standard parts of hydraulic cartridge relief valve? I was a little surprised because there was no inquiry for non-standard cartridge valves in the past 3 years. After communication, it was learned that the hydraulic cartridge relief valve used in one of their hydraulic cylinders encountered a problem. The vibration of the oil cylinder was severe, and the problem came from the hydraulic cartridge relief valve, which was slow in response to overload and overflow. This cartridge relief valve was customized from a hydraulic cartridge valve manufacturer in Ningbo. The manufacturer had optimized it twice, but the improvement was not obvious. I asked him if as long as the hydraulic cartridge relief valve is sensitive to overload and overflow, it can solve the problem of cylinder jitter. I was just afraid to waste his sample time. After getting the approval of their engineer, according to his system schematic diagram and the original drawing of the hydraulic cartridge relief valve, AAK engineer judged that after change the pilot function of the original hydraulic cartridge relief valve, it can react sensitively. After 35 days, AAK sent 8 samples of hydraulic cartridge relief valves. During the CNY, he sent us a PO of 280 hydraulic cartridge relief valves. He said that the cylinder fitted with AAK hydraulic cartridge relief valve very well, and did not shake. The customer was very satisfied with the trial of the cylinder, and placed the order with them for the cylinder. AAK hydraulic cartridge relief valve is sensitive to overload and overflow. The key is that we have made 3 breakthroughs in valve spool, seat structure and sealing. The optimized AAK hydraulic cartridge relief valve strengthens the pilot function, and can directly push the valve spool to release pressure without opening the pilot structure first. In the overload of hydraulic cartridge relief valve, the overflow action is more direct and sensitive. 1. Change the through-hole of the oil replenishing valve spool of the hydraulic cartridge relief valve to be larger than the cross-sectional area of the valve seat opening, and the oil replenishing valve spool and the overflow valve spool are arranged coaxially, and the pressure regulating screw is connected with the pressure regulating lock nut through the thread. 2. One end of the oil inlet of the valve seat is connected with the rear through-hole of the oil filling valve spool, and is equipped with a sealing ring and a spring. 3. The left end of the valve seat is the clamping part, the middle and front parts are the plug-in parts which are similar to the cylinder structure, the front part and its side have overflow outlet and overflow inlet, and there are seal ring grooves between the two ports. After finalizing the purchase contract of this hydraulic cartridge relief valve, Monroe told me privately today that he was promoted to the purchase manager by his boss, and he also got a raise in salary. He has more confidence in the purchase of the cartridge valves. AAK hydraulic cartridge relief valve, is also sensitive to overload and overflow. You can also try it! https://www.aakindustry.com/info-detail , /cartridge-relief-valves-aak501

Lennox comes from a hydraulic equipment company in Greece, and has been purchasing for 3 years, which has been smooth. In the second half of last year, a batch of hydraulic cartridge relief valves purchased stumped him. Some time ago, they sold hydraulic power unit equipment. The customer complained about the slow unloading speed and low adjustment sensitivity. After the after-sales inspection, it was found that there were debris and other impurities in the space between the valve body and the valve spool of the hydraulic cartridge relief valve, which could easily cause the hydraulic cartridge relief valve to jam intermittently. It was thought that the problem could be solved after thorough cleaning, but soon the old problem occurred again. The original manufacturer of the hydraulic cartridge relief valve said that the problem was caused by unqualified hydraulic oil. Lennox realized that the service awareness and manufacturing quality of the original manufacturer could not meet the customer's needs, and had to change the hydraulic cartridge valve manufacturer. However, a week later, there was no solution, and Lennox was worried. Lennox browsed AAK website on Google and left a message: 1. Why is the unloading speed of the hydraulic cartridge relief valve slow and the adjustment sensitivity of the valve low? 2. Is the main reason for the stuck of the valve spool due to debris and other impurities? 3. Can AAK optimize the design of the original hydraulic cartridge relief valve and what is the sample lead time? According to this message, I know that he has encountered problems in purchasing hydraulic cartridge relief valve, and the original manufacturer is powerless. After communication, we learned his current dilemma. According to the video of abnormal equipment and the production drawings of the hydraulic cartridge relief valve sent by Lennox, AAK engineer advised that the first step is to optimize the original structure, and the second step is to ensure the machining accuracy. As long as these 2 steps are free of mistakes, we can solve the customer's complaints 100%. According to the development time and cost of AAK, Lennox asked for AAK samples on the second day after feeding back to the boss. After 45 days, AAK sent 20 hydraulic cartridge relief valve samples. Last week, Lennox sent an email to express his thanks. It has been 8 months since the power equipment equipped was installed with AAK hydraulic cartridge relief valve. The customer has not found that the unloading speed is slow and the adjustment is also flexible. The customer is very satisfied with this after-sales service. The boss has decided to replace all the hydraulic cartridge relief valves on this batch of power units with AAK ones, so that AAK can prepare materials in advance. AAK optimizes the structure of the original hydraulic cartridge relief valve in this way: 1. 6 overflow ports are set along the circumference of the hydraulic cartridge relief valve body, to accelerate the unloading speed of the hydraulic system, and increase the adjustment sensitivity of the valve. The standard deviation of processing accuracy of each overflow port must be the same, which makes it difficult for most hydraulic cartridge valve manufacturers. 2. A groove is arranged on the outer circumference of the hydraulic cartridge relief valve. The support ring, seal ring and filter are set in the groove. This is a technical activity, just like the dentist planting teeth for the 80 year old people. The valve body will be scrapped if a link is defective. 3. The filter is set in the concave part of the oil inlet, which can not only filter the impurities in the worn shoulder, but also clean the oil, completely solving the stuck of the valve spool caused by external factors. AAK hydraulic cartridge relief valve, sensitive and trouble free, you can also try a small order! https://www.aakindustry.com/info-det , ail/cartridge-relief-valves-aak429

Sumarokov comes from Russia and has been engaged in the procurement of hydraulic valve blocks for 7 years. His boss also thinks highly of him. At the beginning of the year, Sumarokov needed to purchase a hydraulic valve block for use in a hydraulic tractor. He took samples from local hydraulic valve block manufacturers, and the test run was smooth. But he didn't expect that 1 month after the sale of the hydraulic tractors, some customers complained that the equipment was unstable and there was leakage at the hydraulic valve block aperture, but the original hydraulic valve block manufacturer thought that it had nothing to do with their hydraulic valve blocks. There were more and more complaints from customers, but the original manufacturer did not cooperate, and Sumarokov had a big headache. On B2B, Sumarokov saw many articles about hydraulic valve blocks from AAK and left us a message: can you ensure that every valve hole of hydraulic valve blocks is processed without deviation? I guessed that the machining accuracy of the holes of the hydraulic valve blocks he purchased was uneven. After communication, I learned that he was in trouble. I told him that most hydraulic valve block manufacturers use 5 processes of drilling, reaming, spot facing, reaming and grinding to process the valve holes. The hidden trouble is that in the process of hole reaming and grinding, the expansion of the orifice is not easy to control, and the aperture may not be absolutely consistent. I suggested Sumarokov directly trying AAK samples of the hydraulic valve blocks. Whether AAK can do it well or not, it does not depend by mouth. You can tell by the samples directly. Sumarokov accepted my proposal and paid for the development cost. After 25 days, 40 hydraulic valve blocks were sent out to solve the customer's complaint first. Last week, Sumarokov said in an email that it has been 3 months since AAK hydraulic valve block was installed on the hydraulic tractor, and there is no complaint of leakage. The hydraulic valve block looks simple, but in the processing of valve holes, the processing technology needs to be determined according to different accuracy requirements, not simple drilling, reaming, spot facing, reaming and grinding. AAK is different and lead most hydraulic valve block manufacturers with 3 points. 1. Choose the reamer. For the processing of the valve hole of this hydraulic valve block, we use the reamer made of 50W6MO5G4V2A1 material with hardness of HRC66 instead of the conventional W18Cr4V. 2. In terms of equipment, we use a high-precision machining center imported from Switzerland. The roughness of the processed hydraulic valve block valve hole can reach Ra value of 0.8-0.4μm. The ovality circle error and taper error can be controlled within 0.01-0.02mm, and the valve hole size accuracy can be controlled within 0.01mm. 3. In terms of processing technology, it is processed by 5 links: drilling, reaming, rough reaming, fine reaming, and no edge reaming and squeezing. The increase in the outer diameter of each link is controlled at 0.02mm, and kerosene is used for cooling in the processing process. The cutting amount is strictly controlled, and V = 2m / min and F = 0.3mm/n are implemented. AAK hydraulic valve block, processed with good tricks and Swiss leakage free seal technology, you can have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-valve-blocks-aak341

Ctenah is from Russia. In early July of this year, he left a message on AAK hydraulic valve website: We mainly purchase hydraulic cartridge flow control valves from India and Europe. Due to the prices in Europe and the instability in India, we would like to try to find a long-term cooperative supplier of hydraulic cartridge valves from China. Based on my over 20 years of experience and multiple visits to AAK hydraulic valve websites, I believe AAK is a good option. At present, we have a customized model that has been tested 3 times in the Indian factory, but the stability of hydraulic cartridge flow control valve accuracy is still not solved. If you are willing to develop the Russian market, we will start working together with this hydraulic cartridge flow control valve. I really appreciate Ctenah's frankness and checked their company online. Their product line is very compatible with AAK, and the quality of hydraulic cartridge valves is also very particular. He seems to be very cheerful, which is the target customer base of AAK hydraulic valves. According to the hydraulic cartridge flow control valve samples sent by Ctenah from the original Indian factory, and his original design drawings, the accuracy requirements are high, especially the 1μm valve spool is difficult, without unique skills, it is hard to maintain the stability of precision. For each batch of hydraulic cartridge flow control valves, there will be always a part that will leak. I think this is the reason why Ctenah was not satisfied with the 3 times of samples sent by the Indian factory. I told Ctenah that the key to the accuracy of this valve spool is polishing, which not only requires high-precision grinding machines, but also segmented cutting techniques. After 40 days, AAK sent out 12 samples of hydraulic cartridge flow control valves. Last week, Ctenah's email us, stating that AAK sample accuracy meets the requirements, and there are 17 models of hydraulic cartridge hydraulic valves attached for AAK to quote. They will visit AAK factory by the end of October. I expect AAK to become his most stable hydraulic cartridge valve supplier in Ningbo China. He used 20 years of experience as a guarantee, and I gave back his choice with 1 successful sample. Sometimes, business is often simple. The precision machining of the hydraulic cartridge flow control valve spool is carried out by AAK using Japan's Tsugami cylindrical grinding CNC lathe. This equipment was previously mostly used in the military industry, with the advantages of centralized control rods, the characteristic of no deviation in spindle rotation, and the stability and seismic resistance of the plastic guide rail. It is qualified to challenge 1μm accuracy. The equipment engineer first adjusts the cutting stroke of the equipment based on the hydraulic cartridge flow control valve spool, and then cuts the blank parts in sections according to the contour of the spool. Using the entry method, the blank parts are finely ground in sections, leaving a capacity of 0.03. This is crucial, as leaving more or less will have an impact. When cutting by segment, there is 1 more detail that is also crucial: adjacent to two segments, set a 5mm overlap interval. Most hydraulic cartridge valve manufacturers do not delve deeply into these 2 details, which also leaves a potential problem for unstable accuracy. Finally, the vertical method is used for precision polishing, and the speed is controlled at 70% of the general speed. Although the efficiency is low, it is beneficial for the stability of accuracy. AAK hydraulic cartridge flow control valve, 2 details, 2 methods, challenging 1μm accuracy. You can also give it a try! AAK HYDRAULIC VALVES (685) 2023-10-03 https://www.aakindustry.com/info , -detail/cartridge-directional-control-valves- a , ak685

Noah is from Brazil, and their hydraulic equipment is very popular locally. Last year, a batch of hydraulic needle valves customized from a hydraulic valve manufacturer in Ningbo China broke his smooth procurement experience. The hydraulic needle valve had unstable flow control, which had caused customer complaints. The original hydraulic needle valve manufacturer had replaced some parts, but the problem cannot be completely solved. The root cause was unstable accuracy, and Noah was very helpless. Last September, Noah found AAK Hydraulic Valve and left us a message: Can AAK make a hydraulic needle valve with stable flow control and a service life of no less than 18 months? After communication, it was learned that about 30% of the hydraulic needle valves he purchased had unstable flow control. Noah sent us 10 samples of hydraulic needle valves from the original factory. After dissecting, we found that some hydraulic needle valves have a coaxiality error of 3μm. There are also 2μm. According to his hydraulic system schematic, if controlled at 1.0μm or less, then the hidden problem of unstable flow control can be eradicated. Noah required AAK to make samples. 45 days later, Noah received samples of AAK hydraulic needle valves. Today, we received an email from Noah stating that the AAK hydraulic needle valves have been in operation for 6 months and there have been no complaints of unstable flow control. They need to purchase a batch of hydraulic needle valves and need my feedback on the production time. The reason why AAK hydraulic needle valve can replace the original hydraulic valve manufacturer is because it focuses more on the accuracy and functionality of the hydraulic needle valve, with analysis, precision machining, and testing, with each process followed to another one. 1. Analysis of Amesim simulation software: Simulate the flow curve of liquid through a hydraulic needle valve, with specific and realistic parameters. 2. Control of precision machining: Using Swiss honing equipment and specialized fixtures, with 30 years of experienced technicians, the coaxiality of hydraulic needle valves can be controlled within 1.0μm. 3. Inspection and control: Use three coordinates for inspection, strictly control the coaxiality within the tolerance range, and also check the cylindricity. AAK hydraulic needle valve, with analysis, accuracy, testing, and durability, you can also give it a try! AAK HYDRAULIC VALVES (585) 2023-05-16 https://www.aakindustry.com/info , -detail/needle-valve-aak585

Davis comes from a hydraulic equipment company in the United States. He has cooperated with AAK for 4 years, and it is very smooth. It is strange that since an inquiry of hydraulic pressure control valves in the second half of last year, there has been no new inquiry from him, only the reorders of some hydraulic cartridge valves. At the beginning of August, Davis asked about the production time of 200 hydraulic pressure control valves, and only then did we know that why he did not place orders for new valves for a long time. In the second half of last year, he found a hydraulic valve manufacturer whose price was more than 20% cheaper than that of AAK, so he moved the business to that manufacturer. But now troubles come out one after another, the boss is very dissatisfied, and he is under great pressure.   The most troublesome thing is that a three grip electro-hydraulic puller is weak in grasping due to the leakage of the hydraulic pressure control valve. However, the manufacturer of the original hydraulic pressure control valves prevaricated, and the high frequency of use of the equipment caused the wear of the valve body, and even refused to replace the goods. Davis regretted his decision. He caused big trouble for the first time because of the 20% price difference, and had to get back to AAK. In the past 4 years of cooperation with AAK, there was no complaint. In order to help Davis get out of the predicament as soon as possible, we adjusted the production arrangement of the workshop. 2 weeks later, 200 hydraulic pressure control valves were delivered. Davis also sent me the drawings of other valves produced by that manufacturer with lower price, and asked me to be prepared for production.   AAK hydraulic pressure control valve is wear-resistant and leak free, ahead of most hydraulic valve manufacturers in 3 aspects, which are also the important points to ensure the performance of 2 million times.   1. In terms of materials, AAK adopts German 20CrNi2MoV high carburized bearing steel. Through secondary quenching + cryogenic treatment + low temperature tempering process, its microhardness is 237 ~ 247HV, and its wear resistance is 3 times higher than that of similar steels. Most hydraulic valve manufacturers may know how to choose materials, but they may not do a good heat treatment.   2. On the equipment, AAK uses the Japanese NP520X-F full-automatic grinder to finish the valve spool. The surface of the processed valve spool is like a mirror with an accuracy of 0.8μm, the flexibility of the valve spool is improved by at least 2 times. Most hydraulic pressure control valve manufacturers can not process the same quality valve spool as AAK.   3. In terms of detection, AAK uses the German Diatest small pore diameter measuring instrument to check each valve hole of the hydraulic pressure control valve, and the measurement accuracy range can reach 0.1μm at least, ensure the concentricity of the valve hole is consistent, and most hydraulic valve manufacturers use random sampling inspection.   Davis privately told that the boss was very happy with AAK's help regardless of past grievances, and was also satisfied with Davis's ability to deal with unexpected problems.   AAK hydraulic pressure control valve has a performance of 2 million times of long service life. You can also have a small test! https://www.aakindustry.com/info-deta , il/hydraulic-pressure-control-valves- aak340

Some customer left a message to AAK: is AAK a hydraulic valve brand? I answered: AAK Hydraulic Valve has no plan to spend time on becoming a brand, but insist on working hard on building trust. The hydraulic components of small and medium-sized enterprises, whether they are hydraulic valves, coils, hydraulic valve blocks or hydraulic manifolds, are not brands in essence, but network trust. Hydraulic valve counterparts, don't be confused by the word "brand". Although many bosses really want to make a brand, they first encounter the hurdle of "trust". If they can't pass this hurdle, how can they get a brand? I always suggest that hydraulic valves should be made stronger rather than bigger. The guiding principle of brand building is to build trust, and only trust on the network. Don't think about the trust on the ground channel at all. Only the network can cover the whole world with the lowest cost. In a sense, as long as we insist on high-quality hydraulic valve content output every day, we can achieve global network trust. However, it is difficult to insist on writing the contents of hydraulic valves every day. What is more difficult is to write the contents of hydraulic valves that are "related to users" and "beneficial to users". There are too few people who are good at writing long and short essays. It's not that anyone who can write an article can write an essay. An article and an essay are two different things. Don't talk about essay. Even the title of an essay will embarrass 99% of the people. I saw the short video of the hydraulic valves made by my counterparts. I could only sigh. If you don't want the quality of the content, it's very simple to shoot the hydraulic valve video. You can pick up your mobile phone and say a few words of correct nonsense. Shout a few words “come and buy it”. Who can't, but is it useful? Anything done for the sake of doing is meaningless. It's difficult to be a brand of hydraulic valves. It's really difficult for small and medium-sized enterprises to be a brand. The first thing they encounter is the talent barrier. This barrier is not easy because you need to recruit 5 talents, not a worker. After passing the talent barrier, we also need to pass the hydraulic valve marketing barrier. The content should be planned. We should not write what we think and shoot what we think. The content is not systematic and cannot be played. For hydraulic valves, it is relatively simple to build network trust than to build brands. 5 knowledgeable personnel are in place, the content is well planned, and the promotion is carried out on a daily basis. Benchmarking the quality of international first-class brands, such as SUN, HAWE and HydraForce, to make the hydraulic valve manufacturing quality products. The devil of the product is always in the details. The details are all matters that require attention. There is an old saying in China that we should learn from time to time. Learn is practice. Deliberate practice is output. Only learning without output means understanding or knowing, but it is useless to understand and know. Only when you can do it can you really get it. In AAK Hydraulic Valve, whether you are the technician in the workshop, the QC of the production line, the gatekeeper of the procurement, the technical team or the sales team, we all insists on deliberate practice. We know what today, we know why, and we will know how tomorrow. All of them lay the foundation for trust. AAK Hydraulic Valve, only focus on quality and trust. https://www.aakindustry.com/info-det , ail/hydraulic-valves-aak339

Bahamonde is from Mexico and has cooperated with AAK on several non-standard hydraulic valves. At the beginning of this year, he was stuck by a hydraulic pressure control valve. A hydraulic crank-type lift developed by their company will appear at the exhibition in July. In order to get the test run successful as early as possible, Bahamonde found a local hydraulic pressure control valve manufacturer to make samples. The equipment commissioning was not smooth, and the fluid flow and pressure at the oil outlet of the hydraulic pressure control valve are unstable, resulting in inaccurate positioning of the hydraulic crank- type lift and unstable operation control. The original manufacturer said that the sample was based on the original design. Maybe there are defects in the original design. Bahamonde had contacted several local hydraulic valve manufacturers one after another, but none of them were willing to cooperate in redesigning the hydraulic pressure control valve and making samples. As the exhibition period was about to arrive, Bahamonde was very worried. Bahamonde thought of AAK because we had the experience of modifying their original design before. According to his hydraulic schematic diagram and the design of the original hydraulic pressure control valve, our engineers have a basic idea after discussing, but it takes time. Bahamonde told me that he could give me 50 days at most. After 3 times of design adjustment and 6 times of simulation, a new design scheme was determined. After 45 days, 30 samples of hydraulic pressure control valves were sent out. 2 weeks later, Bahamonde told me that the test was successful, and asked me to wait for the good news of their exhibition. Last week, Bahamonde placed an annual order of 1,200 hydraulic pressure control valves, and also mentioned that their hydraulic crank-type lift was very popular during the exhibition. Their engineers admire our technical team's brainy thinking. AAK made it successful this way: For this hydraulic pressure control valve, we changed the structure of the balance cone valve to the balance plunger type, which can let the pressure, connect the control working port and the pilot control port, control the fluid flow and pressure at the oil inlet, and conduct pilot control at the pilot port. At the same time, the hydraulic pressure control valve acts as the main stage of pressure control. The pilot flow of the valve is very small but the flow capacity is very strong, so the circuit design is flexible. And the newly designed hydraulic pressure control valve can integrate all pressure control circuits with external control functions, such as external control opening, external control closing, multi-stage pressure setting, etc., into the circuit, improving the stability of operation control. Most of the hydraulic valve manufacturers mainly produce standard parts and have no original design capacity. For the non-standard hydraulic valves, basically, they cross the river by feeling the stones. AAK hydraulic pressure control valve, accurate positioning and high stability, you can also try it! https://www.aakindustry.com/info-detail , /hydraulic-pressure-control-valves- aak338

A few days ago, there was a perplexing problem. A Russian customer who had cooperated for more than 5 years, confirmed an order for 1,600 hydraulic cartridge valves, but the payment had been always pending. This situation never happened. I was not in a good mood, and a bit frustrated. Today, I'm a little free. I want to think about the source of the sense of the lose. Of course, people will not have the sense of lose without reason. It must be something or someone that triggered my mood. At work, we usually focus on the person who triggers our emotions. There are several ways. One way is to settle him and let him follow our example, but it is usually impossible. Another way is to settle yourself. Go to find the source of this emotion, and then deal with it at this source, but it is difficult to completely deal with it. Suddenly I thought of a little story I saw the other day. A man was driving a boat in the river. There was another boat opposite him. He was about to crash into it. He shouted to go away. But no one on the opposite boat paid attention to him. He shouted again, but was still ignored. After crashed into it, when he was about to scold, he found that it was an empty ship and there was no one. What is the biggest inspiration of this little story? It shows me that this emotion is what I have originally, and others just ignite this emotion. For example, pain, happiness, joy, and sadness, these are the emotions that we originally have, or the emotions shared by the human collective. I have them, and you also have them. What we really experience is the feeling after these experiences. In fact, this feeling is also part of our work. We should be happy when we listen to the promise from others, but don't take it too seriously. The advantage of this is that you are grateful if the others kept the promise; You won't be too disappointed if the other broke the promise. The PO of the hydraulic cartridge valves was received but not paid. Maybe the customer had his difficulties. Happiness or sadness, it is the mode that has been set in the game of life. I can't stop the arrival of these emotions, nor can I stop their departure. We are just the hostels where these emotions temporarily reside. In this way, there may be no need to tangle, because the emotion itself will come and go. Speaking of this, there seems to be a little pessimism or inaction. Just lie flat and let your emotions come and go. How did I get out of the sense of the loss? If there is a bunch of carrots hanging in front of the donkey, the donkey wants to eat that carrot, but it doesn't seem to be able to eat it. In front of our work or life, there is also a bunch of carrots, it is the feeling of hope, also a source of happiness of our work and life. So the most important thing is not what the hope is, but to enjoy the feeling and have the feeling of hope. At this time, I understand the expectation AAK hydraulic cartridge valve brings to customers and the trust from customers behind it. AAK, a hydraulic cartridge valve manufacturer in China, has hope, has trust. https://www.aakindustry.com/info-detail/hy , draulic-cartridge-valve-manufacturer- aak500

This week, we’d like to introduce a hydraulic cartridge valve equivalent to HydraForce PRES50-30. It is a screw in, cartridge style, direct-acting, spool- type, hydraulic pressure reducing/relieving valve designed to act as a pressure regulating device for secondary circuits. It is intended for use in stable input flow circuits. Last June in 2022, a customer in Brazil found AAK when looking for a hydraulic cartridge valve manufacturer in China on Google. He was happy to found that AAK has the hydraulic pressure reducing/relieving valve equivalent to HydraForce PRES50-30. Before contacting AAK, he had checked with over 6 hydraulic cartridge valve manufacturers in Ningbo China, but none of them have any similar or equivalent model. This Brazilian customer ordered 10 pcs as the first order for testing. Last week, we were very happy to learn from the Brazilian customer that the E- PRES50-30 Pressure Reducing/Relieving Cartridge Valve shipped by AAK last June is still running very smoothly after 1 year, the quality is very stable. Next week, they will issue the official PO for a regular order of 500 pcs. AAK hydraulic pressure reducing/relieving cartridge valve E-PRES50-30 two advantages: 1. Pressure Rating 345 bar (5000 psi), benchmarking HydraForce 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-PRES50-30 pressure reducing/relieving cartridge valve: Pressure Rating: 345 bar (5000 psi) Note: Port 3 137.9 bar (2000 psi) Note: Port 2 68.9 bar (1000 psi) Note: Port 1 Regulated pressure range: 31 to 55.2 bar (450 to 800 psi) Note: At 0.95 lpm (0.25 gpm) Flow Rating: 11.4 lpm (3 gpm) See Performance Chart Max. Internal Leakage: 131 ml/min (8 in³/min) Note: Port 1 Temperature: - 40℃ ~ + 120℃ (Std. Buna N Seals) Cavity: 10-3 AAK E-PRES50-30 pressure reducing/relieving cartridge valve, benchmarking HydraForce PRES50-30, has been approved by customer in Brazil after 1 year of testing. You are welcome to give it a try. AAK HYDRAULIC VALVES (684) 2023-10-02 https://www.aakindustry.com/info , -detail/pressure-reducing-relieving-valves- aak , 684

At the beginning of this year, Samuel asked by email about the production time of 1,000 hydraulic needle valves, He specially emphasized that the technical parameters of the hydraulic needle valves need to be the same as those samples made before, especially the valve hole accuracy must be 100% within 1μm or less. Samuel has been cooperating with AAK for 3 years. It is the first time that he deliberately emphasized as such in email. After communication, I learned that the hydraulic needle valves that AAK made samples for last time was 20% higher than that of other hydraulic valve manufacturers, so he placed the order with another manufacturer. However, now this batch of hydraulic needle valves have been complained by customers that the hydraulic winch is stuck. The root cause is that the accuracy of the hydraulic needle valve holes is uneven, and some are less than 1μm, and some higher than 1μm. After the original hydraulic needle valves were replaced by the manufacturer, complaints still continued. The boss was very dissatisfied with Samuel's purchase this time and asked him to source another hydraulic needle valve supplier. Samuel can only get back to AAK, because the sample accuracy of AAK hydraulic needle valve hole was 1μm or less. I told Samuel that the shipment of AAK hydraulic needle valves has never been lower than the sample standard. The next day, Samuel sent us the PO of 1,000 hydraulic needle valves. After 45 days, AAK delivered 1,000 hydraulic needle valves. Last week, Samuel sent an email saying that AAK hydraulic needle valves had been installed on the equipment for more than half a year, and no complaint was received. His boss would rather spend 20% more cost and must purchase the hydraulic needle valves with valve hole accuracy 1 μm for 100%. I told him that even if AAK hydraulic needle valve is used properly in another year, it will not get stuck. Samuel was surprised at how AAK ensured 100% accuracy of the hydraulic needle valve hole within 1μm? For the control of the manufacturing quality of hydraulic needle valves, AAK's 3 characteristics lead the majority of hydraulic valve manufacturers. 1. On the processing equipment, the valve hole is finished with the TAMIX one- time tool walking high-speed ultra precision honing mill imported from Japan, which is thoroughly ground without traces. In mass production, the wear- resistant SPA tool effectively ensures the stability of processing, and the valve hole accuracy is guaranteed to be 0.8-1.0μm and the surface roughness reaches Ra0.2-0.3. 2. In the processing process, AAK has more than 10 years of experienced technicians with special machines and special personnel, who have engraved the dimensional accuracy of each element in their minds. 3. In terms of processing and inspection, after the valve hole is processed, Diatest small pore diameter high-precision measuring instrument imported from Germany is used to accurately measure each hydraulic needle valve hole, and the minimum measurement accuracy range can reach 0.1μm so as to ensure that the accuracy of each product meets the standard. AAK hydraulic needle valve, high precision, no jamming, you can also try it! https://www.aakindustry.com/info-detail , /hydraulic-needle-valves-aak337

This Monday, we posted a new model benchmarking SUN Direct-acting relief valve, RDBA-LEN, RDBA-LAN. The Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero leak, dirt tolerant, immune to silting and are very fast. From the inquiries and orders that we have received, RDBA-LAN seems to be more widely used. We have 6 inquiries for RDBA-LAN, but only 3 inquiries for RDBA- LEN. The selling points of the Direct-Acting Relief Valve are: 1.Response Time – Typical 2 ms, benchmarking SUN, no secondary factory in Ningbo 2.Quiet, zero leak Technical parameters of AAK E-RDBA Hydraulic Direct-acting Relief Valve: Max.Setting: 350 bar (5000 psi) Capacity: 12 gpm (48L/min) Maximum Valve Leakage at Reseat: 10 drops/min. Response Time – Typical: 2 ms Temperature: - 30°C to 120 °C   Cavity: SUN T-162A AAK Direct-Acting Relief Valve with 3 major advantages, benchmarking against SUN RDBA, you can also give it a try. AAK HYDRAULIC VALVES (584) 2023-05-15 https://www.aakindustry.com/info , -detail/relief-valve-aak584

Brishen is from Brazil. He has been purchasing hydraulic valves for 4 years smoothly, but was stumped by a hydraulic cartridge pressure control valve recently. At the end of last year, their customer wanted to customize a hydraulic power unit for the hydraulic system of aviation equipment, which has high requirements for the cartridge pressure control valve. Brishen chose a local manufacturer who has cooperated with their company for 3 years to make samples for the hydraulic cartridge pressure control valve. 2 weeks later, the manufacturer reported that it was too difficult to process this hydraulic cartridge pressure control valve. Especially, the length diameter ratio of the slim hole of the valve spool guide sleeve was 11∶1, and the hole cylindricity was within 2μm, the scrap rate of the sample is 50%, and the processing efficiency is extremely low and it is too difficult to control the cylindricity. Brishen contacted more than 10 cartridge valve manufacturers. No factory was willing to make samples. They either rejected due to small qty or could not overcome the processing difficulty. Brishen was worried. In B2B, Brishen noticed the article about the length diameter ratio processing of AAK hydraulic valve, and felt that the length diameter ratio of 11∶1 might not be a problem for AAK. He emailed me to ask that for the hydraulic cartridge pressure control valve, with the length diameter ratio of the slim hole of the valve spool guide sleeve as 11∶1, and the hole cylindricity within 2μm, dimension tolerance within 1μm, what is the lead time and development cost for AAK to make samples? My reply: Thank you for your trust in AAK. This cylindricity precision is high, and ordinary cartridge valve manufacturers can't make it. Similar processing technologies were produced in batches by AAK 3 years ago, and now it is more and more mature. After 50 days, AAK sent 12 samples of hydraulic cartridge pressure control valves. 1 month later, Brishen sent an email to inform that their engineer was satisfied with the size and accuracy of the AAK hydraulic cartridge pressure control valve. It was installed on the hydraulic power unit, and the overall operation was stable. The equipment had been delivered to their customer. It was estimated that there would be a batch order 6 months later. AAK hydraulic cartridge pressure control valve indirectly controls the cylindricity from the 3 factors of straightness, taper and roundness during processing, including 3 points: 1. In the rough machining link, the gun drill is improved and a new process is developed. First, a pilot hole is machined. The coaxiality of the machined hole is within 0.02mm and the straightness is within 0.01mm. 2. In the rough honing process, the honing rod with the size of about 120% of the hole length is selected, and the straightness of the valve hole after processing can reach within 3μm, the taper reaches within 2μm. Most cartridge valve manufacturers are easy to make bell mouth because of the poor grasp of the honing bar size. 3. In the finishing link, first trim the grinder with a taper of within 0.3μm, set the length of the grinder to 90% of the hole length to ensure the cylindricity of the slender hole of the valve sleeve is within 2μm, dimension tolerance is within 1μm. AAK hydraulic cartridge pressure control valve, with high precision and stability, you can also have a small try! https://www.aakindustry.com/info-detai , l/cartridge-pressure-control-valves- aak428