Valves

Duden is from Lukas hydraulic equipment company in Germany. We have cooperated for more than 2 years on hydraulic check valves and hydraulic throttle valves. The order volume is small each time, but the parameter requirements are very high. AAK never despised it because of the small order quantity of the hydraulic check valves or hydraulic throttle valves. At the end of last year, their company developed a new hydraulic unit. Due to time constraints, Duden purchased hydraulic check valves and hydraulic throttle valves from local hydraulic valve manufacturers in Germany. The technicians found the original design defects after installing the integrated valve into the equipment. The position of the hydraulic throttle valve next to the hydraulic check valve is high, accounting for a little position of the motor, which makes it difficult to install the motor. Lukas engineers are a little depressed. If the position of the hydraulic throttle valve is changed, the whole oil circuit layout needs to be changed, but the power supply of the hydraulic system will be affected after changing the oil circuit. What is more troublesome is that there is not much time to redesign and proofing. The Engineers asked Duden to contact some local hydraulic valve manufacturers to check if the design size of the hydraulic throttle valve could be slightly adjusted so that the motor could be installed. Duden checked with several local hydraulic valve manufacturers, all of them were not willing to make samples because of small quantity of the hydraulic throttle valves. Duden tried to purchase small-size hydraulic throttle valves from China to solve the installation problem of the motor. Some Chinese hydraulic valve manufacturers said that they could make samples according to the requested size of their hydraulic throttle valves, but the time needed was more than 30 days. Duden couldn't accept this time and was more worried about the quality of hydraulic throttle valves from these factories. Duden sent an email to AAK asking if we could make several samples of hydraulic throttle valves in 5 days. In the past, the sample time gave by Duden was usually flexible with more than 2 weeks. After asking, I learned that their designers are facing embarrassment. It is also too tight for us to make several hydraulic throttle valves in only 5 days. I suggest Duden give us the overall layout of the integrated valve block. Maybe our engineer has a solution. According to the hydraulic schematic diagram provided by Duden and the specific use of the hydraulic integrated valve block, AAK engineers analyzed it step by step. Finally, it was found that if the hydraulic throttle valve and the hydraulic check valve were designed in parallel, the functions of the two valves were combined to form a hydraulic throttle check valve, which was installed at the position of the hydraulic check valve, and the installation hole of the hydraulic throttle valve was blocked with a plug. This not only saves the redesign time of the hydraulic integrated valve block, avoids the embarrassment that the motor can not be installed, but also has no impact on the pressure supply of the hydraulic system. Their designer was surprised that AAK used this idea to solve the pain point. He hoped that we could make the samples to test as soon as possible. AAK sent the newly designed hydraulic throttle check valve to Duden. After installing the hydraulic throttle check valve into the integrated valve block, the results were as described by AAK, and the test was successful. The design engineers of Lukas company admire AAK unique design scheme and production capacity greatly. AAK hydraulic throttle check valve can efficiently and timely solve problems for customers. Welcome to give it a try! https://www.aakindustry.com/info-detai , l/hydraulic-throttle-check-valve-aak168

This Saturday, I was sorting out articles on hydraulic cartridge valves in my study. Suddenly, a loud and clear sound came from the living room. Upon running out, my favorite celadon vase fell to the ground, with fragments scattered all over the ground. My 6-year-old son stood in the living room, staring at me, bewildered. Looking at the debris all over the ground, my blood surged up and I shouted at my son. The first time my son saw me get so angry, he was scared and desperately tried to find a reason to explain why the vase fell to the ground, but also to shirk his responsibility. Looking at the tears on his face, I suddenly remembered the instinct of human nature: "When people are afraid, the subconscious action is to avoid, find reasons, and shirk responsibility." I also realized that it was wrong for me to get angry. Returning to my study, I blamed myself for not holding back my anger. Next time I encounter something similar, I must hold back. During my reflection, I summarized the 3 steps. The first step is to take it easy. I should first see if my son is injured. If he gets hurt, go to see a doctor. If there is no injury, clean the debris on the site to avoid secondary injury. The second step is to control emotions and analyze the reasons. Ask my son, why did the vase fall to the ground? If I am gentle, and child is also gentle. He may tell me, "I'm sorry, I just threw the toy around and accidentally broke the vase.". The third step is to eliminate root causes. The celadon vase has broken, and if I don't give up, what else can I do? I can talk to my son like this: Steven, this vase is worth more than 10,000 yuan, and it's also Dad’s favorite vase. Now, it's broken. What do you think to do? He may say, 'I'll give you all my lucky money and buy another one.'. How can we avoid this happening again in the future? He might say, "I won't throw things around anymore.". What if I throw it around again? You can punish me. Son, the important thing is not punishment. Violence cannot solve the problem. Instead, think about what this event has taught you, or what risks it may bring to you, and how we can avoid them in the future. If a celadon vase hit on your head, it will bleed and hurt, which is something Dad doesn't want to see. You can think about what behaviors may bring risks to you and what items at home may harm you. Let's change our behavior together, okay? Seeing and recognizing children, helping them provide feedback, and constantly correcting their behavior. It is like a seed, constantly giving sunshine, rain, and dew, and patiently fertilizing. Until one day, the seeds broke through the soil and grew into towering trees. This is my reflection and summary of the 3 step method. This morning, I opened my mailbox and checked my customer's email. I saw Tim's complaint. AAK sent him samples of a hydraulic cartridge valve test order, which was not the model he wanted. I immediately wondered if another customer's hydraulic cartridge valve sample was sent to Tim by mistake. In the past, I would immediately call my colleagues and hurl insults at them. But yesterday's experience of scolding my son told me that the more I scold my subordinates, the less guilty they will feel. I used the 3 step method to do this way: The first step is to deal with the problem. I apologized to Tim first, and within a week, I will send him the test order samples of his customized hydraulic cartridge valve. I also asked him to return the wrong hydraulic cartridge valve samples, and I will bear all the costs. At the same time, I also emailed to the other customer and told him that the wrong test order samples for the hydraulic cartridge valve were sent to him, and asked him to return the samples. I will bear all costs. Step 2: Analyze the cause. For example, two different hydraulic cartridge valve test order samples may be delivered at the same time. The express package is identical. FedEx may take the wrong sample when it comes to pick up the goods. Find ways to completely eliminate problems and ensure that such problems do not occur again. Have colleagues discuss the new SOP for sending samples of hydraulic cartridge valves. Step 3: Determine the sample sending plan for the hydraulic cartridge valve test order. After discussion, implement the plan. Further consider what hidden dangers remain in the work and how to eliminate them. I think that's the benefit of a 3 step process. Not only did it solve the problem, but it also educated subordinates and allowed them to grow. To achieve the goal, the work must be implemented in place, and the specific tasks should be recorded in the task list, specifying the responsible person, completion criteria, and deadline. After that, continuous tracking will be conducted to ensure implementation and that problems and hidden dangers can be resolved. AAK hydraulic cartridge valve, targeting, tracking the process, and obtaining results. Many times, it is important not only to focus on "What to do", but also to focus on "How to do" and "Who to do". https://www.aakindustry.com/info- , detail/hydraulic-cartridge-valves-aak535

Algernon comes from Brazil and has been very successful in purchasing hydraulic cartridge valves from China. Unexpectedly, at the beginning of this year, he was annoyed by the urgent purchase of a batch of hydraulic directional control valves. Due to time constraints, the boss requested Algernon to find a hydraulic cartridge valve manufacturer to customize a hydraulic directional control valve, with a production time of only 45 days, but an accuracy of within 2μm. Algernon contacted several of his most trusted hydraulic cartridge valve manufacturers in Ningbo China. As there are not many manufacturers with the ability to customize non-standard hydraulic cartridge vales with high accuracy, the manufacturers that Algernon contacted were either not able to catch the delivery time, or meet the accuracy requirement. Algernon found on Google that AAK has published an article about producing the hydraulic directional control valve within 2μm accuracy, so he emailed us to ask if AAK can finish 30 non-standard hydraulic directional control valve samples within 45 days? After communication, we learned that he has a very tight time frame and high accuracy requirement that the other hydraulic cartridge valve manufactures in Ningbo were not able to meet. This is just the problem that AAK always like to challenge and solve. I told Algernon that AAK already has more than 5 customer cases about finishing 30 non-standard hydraulic directional control valve samples with 2μm accuracy within 45 days. Algernon paid the development fee the next day, and within 45 days, AAK sent out the samples. Last week, Algernon said that their equipment debugging was smooth, and they were confident in obtaining a batch order of the equipment. He asked me to patiently wait for the reorder of this non-standard hydraulic directional control valves. AAK hydraulic directional control valve samples can be finished efficiently, with accuracy controlled within 2μm. The key is that AAK has imported TSUGAMI CNC Precision Automatic Lathe from Japan, which provides us with confidence. 1. Turning and milling composite processing is the advantage of this equipment, which can complete most of the processing processes in one go, reducing the production cycle of tooling and fixtures, and reducing the processing time by more than 30% compared to conventional CNC Precision Automatic lathe. 2. The transformation of guide sleeve spindle and non guide sleeve spindle can be carried out, and the machining accuracy of the components can be ensured. 3. The clamping frequency is 40% less than other CNC Precision Automatic lathe, and there is a self review function in place during processing, which not only improves processing efficiency but also ensures that the processing accuracy of each valve seat is controlled within 2μm. AAK hydraulic directional control valve, fast processing, high precision, you can also give it a try! AAK HYDRAULIC VALVES (626) 2023-07-13 https://www.aakindustry.com/info , -detail/hydraulic-directional-control-valves- a , ak626

At the beginning of last year, Lawrence sent an email to ask for help. He is a purchaser of a hydraulic equipment company in Italy and has cooperated with AAK for 2 or 3 years. Almost all of the orders are a small number of hydraulic check valves with high requirements. When encountering problems, he always asks for help from AAK, and AAK is also happy to help him. After several rounds of email communication, it turned out that the power unit for controlling the hydraulic lifting column produced by their company had a customer complaint 3 months after sales. Their engineers found a leak on the valve block of the power unit, that is, around the valve hole equipped with the hydraulic pilot operated check valve. It is preliminarily judged that the leakage should be caused by the wear of the seal of the hydraulic pilot operated check valve. However, after dismantling the hydraulic pilot operated check valve, it is found that the sealing ring is intact. After Lawrence communicated with the original manufacturer of hydraulic pilot operated check valve, they both thought that there should be no problem with the hydraulic pilot operated check valve or valve block, because the test data before shipping were qualified. The leakage problem should be caused by the wrong operation of the installation personnel of their company. Lawrence seemed to understand because it is true that the test result of the hydraulic pilot operated check valve originally shipped was OK. Lawrence asked their engineers to reinstall it. As a result, it worked normally and everyone thought the problem had been solved. But 3 months later, the same problem happened again, and the customer could not accept and requested to return goods. The boss was very angry and asked Lawrence and the engineer to completely solve the leakage problem of the hydraulic pilot operated check valve. This is why Lawrence emailed to AAK for help. AAK engineers analyzed according to the valve block integration diagram and the drawing of hydraulic pilot operated check valve provided by Lawrence. There is an assumption that the frequent vibration of the power unit of the hydraulic lifting column affects the stability of the installation of the hydraulic pilot check valve. Following this idea, it is found that the hole depth of the threaded socket integrated with the valve is not enough, which leads to the loosening of the jack position of the hydraulic pilot operated check valve. This problem can only be solved by adjusting the depth of the jack, increasing the thread torque of the hydraulic pilot operated check valve and increasing the bonding area between the valve and the hole. The next day I emailed Lawrence the idea of our engineer's. If we want to verify this idea, we can only make samples. One month later, AAK sent the redesigned hydraulic pilot operated check valve and integrated valve block to Lawrence. Last week, Lawrence sent an email saying that after the hydraulic pilot operated check valve and valve block redesigned by AAK were installed on the equipment, so far, the hydraulic lifting column has been used without abnormality. The customer was very satisfied that they finally solved the leakage problem of the hydraulic pilot operated check valve at one time. His boss also appreciated Lawrence for helping the company solve the after-sales problem. AAK hydraulic pilot operated check valve is cleverly designed to easily solve the leakage problem. Welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pilot-operated-check-valves- aak172

Last week, Kedma from Israel left a message on the hydraulic manifold manufacturer AAK website: 1. We need to customize a hydraulic manifold block, for each 2 opposing faces of the 6 faces of the manifold block, its accuracy must be the same. 2. This hydraulic manifold block is intended for military equipment. If it does not meet the requirements, please do not provide a quotation. I saw this message and did not reply directly. But instead, I asked Kedma, ‘You should have checked with many hydraulic manifold manufacturers, right? And most of these hydraulic manifold manufacturers gave no reply or said No.’ Kedma agreed with my guess and asked me how I found out. I told Kedma that most hydraulic manifold manufacturers in China are not confident, especially when it comes to military products, they are a bit scared. Moreover, Kedma has special requirements, and these hydraulic manifold manufacturers do not want to cause trouble, and some hydraulic manifold manufacturers do not have the ability to do so. Kedma seems to be interested in AAK and asked me how much time and cost it would take to customize this hydraulic manifold block, and how can AAK ensure that the accuracy of the 2 opposing faces of the hydraulic manifold block must be consistent? I said, before providing a quotation and development, let's first watch a video of how AAK processes hydraulic manifold blocks. From the video, it can be seen that the key points are the 3 steps: 1. The processed hydraulic manifold block should be properly positioned to ensure centering. 2. The processed hydraulic manifold block should be securely fixed to ensure no displacement 3. The 2 opposing faces of the hydraulic manifold block are processed and milled simultaneously. The double-sided milling machine is a perfect match for Kedma's special requirements for hydraulic manifold blocks. It is driven by the spindle and simultaneously drives 2 symmetrical milling cutters. At the same speed and milling depth, the surface roughness of the 2 opposing faces of the hydraulic manifold block is also synchronously controlled. The 2 symmetrical milling cutters are capable of cutting 360 degrees without dead angles in front and back, up and down, left and right. The processed hydraulic manifold blocks do not need to be flipped, avoiding secondary positioning errors. Most hydraulic manifold manufacturers process the hydraulic manifold blocks by one face to another, which not only has low efficiency and unstable accuracy, but also cannot achieve the same accuracy of hydraulic manifold blocks on 2 opposite sides. AAK hydraulic manifold blocks, processed on 2 opposite sides simultaneously, with no errors, you can also try it out. AAK HYDRAULIC VALVES (736) 2023-12-14 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak73 , 6

Galeno is from Spain and has cooperated with AAK hydraulic valves for 5 years. Some time ago, he sent me an email asking us to design a hydraulic direct acting cartridge relief valve to replace the 3 HydraForce standard hydraulic cartridge relief valves in his system. After communication, we learned that their customer had customized a new equipment and was satisfied with their hydraulic power unit functions, but the customer found that the cost of the equipment had no advantage in the market. Because the hydraulic components used are all standard parts, there is little possibility of price reduction. Their engineers said that the only possibility is to use one hydraulic direct acting cartridge relief valve to realize the 3 functions of the 3 cartridge relief valves with different pressure controls in the system, and the system circuit is simplified. Galeno contacted HydraForce for customization, but HydraForce was not willing to develop this non-standard part due to small quantity. According to the schematic diagram of the hydraulic system provided by Galeno, and the drawings of 3 HydraForce standard parts, AAK engineers found the solution after discussion. The hydraulic direct acting cartridge relief valve redesigned by AAK can replace the original 3 valves without affecting its function. After 45 days, AAK sent 10 samples of hydraulic direct acting cartridge relief valves. 1 month after the samples of the hydraulic direct acting cartridge relief valve was sent, Galeno informed us by email that the equipment could work with AAK hydraulic direct acting cartridge relief valve, and its functions were not different from those original ones. The prototype has been sent to the customer. He said jokingly that everyone just needs to wait for a big order. The hydraulic direct acting cartridge relief valve designed by AAK, is arranged with an oil return hole at the level of the front end of the poppet valve spool, a thrust belt is arranged around the front end, and an oil hole is arranged on the poppet valve spool. There is a spring between the poppet valve spool and the pressure regulating screw plug in the valve body. 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. When the pressure oil enters from the oil inlet hole, if the thrust generated by the thrust ring is less than the set pressure of the spring, the poppet valve spool is closed. When the thrust generated by the system is greater than the constant pressure of the spring, the pressure oil pushes the thrust ring to open the poppet valve spool, and the pressure oil flows back to the oil tank through the oil return hole. No matter which pressure state is high, medium or low, the functions can be satisfied, and the hydraulic system is simplified. AAK hydraulic direct acting cartridge relief valve is adjustable for 3 pressures. You can also have a small try! https://www.aakindustry.com/info-detai , l/relief-valves-aak459

Erik compared more than 20 hydraulic pilot pressure control valve factories. No manufacturer can do the hydraulic pilot operated pressure control valves which can be used under high pressure above 450bar for more than one year. AAK hydraulic pilot operated pressure control valve passes the test at one time, and there is no abnormality after one year of use. Erik is from a German hydraulic equipment manufacturer. In the first half of last year, the company needed to purchase a special hydraulic pilot operated pressure control valve with a working pressure of more than 450 bar, a service life of more than one year and a durability of more than 2 million times. The boss realized that it was some difficult to purchase the hydraulic pilot operated pressure control valve this time, and asked Erik and his colleague to purchase at the same time. Whoever successfully purchased the hydraulic pilot operated pressure control valve first will be promoted and raised. Erik is full of energy and keeps looking for hydraulic pilot operated pressure control valve factories online and offline. He contacted more than 20 new suppliers, including AAK hydraulic valve. Most of the hydraulic pilot operated pressure control valve manufacturers replied that they need to be customized from the beginning of materials, and it takes 25 days to sample this special hydraulic pilot operated pressure control valve. Erik chose two factories to test the samples. A month later, Erik received the samples and asked the engineer to test them. The results failed, but the hydraulic pilot operated pressure control valve obtained by his colleague passed the first test, which made Erik very depressed. Fortunately, this is just in the test stage, the final effect depends on the test results of the hydraulic pilot operated pressure control valve one year later. Erik contacted AAK for the second time. He clearly informed that the samples of hydraulic pilot operated pressure control valves he selected in the first round failed. For the first time, he did not choose AAK because AAK needed 35 days. This time, he only asked AAK to make samples. Whether he can win or not, he can only count on AAK. Because the material selection and internal test of hydraulic pilot operated pressure control valves need time, Erik also understands the difficulties of making the samples. After 35 days, AAK sent 6 samples of hydraulic pilot operated pressure control valves. Last week, almost a year after the hydraulic pilot operated pressure control valve samples were sent, Erik sent an email to inform that AAK hydraulic pilot operated pressure control valve was the only sample that passed 2 million tests, and there was no abnormality after one year of use. Although his colleague's sample passed the early test, it could not withstand the high pressure above 450 bar for enough time, it leaked in less than a year. A few days ago, the boss praised Erik's purchasing ability at the company conference, and his dream of promotion and salary increase has also been realized. Erik was surprised that why AAK hydraulic pilot operated pressure control valve was normal after 1 year of use, while other manufacturers surrendered early? The core of this hydraulic pilot operated pressure control valve is material and heat treatment. AAK adopts 20CrNi2MoV high carburizing bearing steel imported from Germany, combined with carburizing pretreatment process, through secondary quenching + cryogenic treatment + low temperature tempering process, which is cooled to 650 ~ 700 ℃ and discharged after cooling to 450 ~ 500 ℃. The microhardness is 237 ~ 247 HV, and its wear resistance and contact fatigue performance are increased by more than 3 times. After heat treatment, the thermal stability and compressive strength of the material have long been far ahead. Most manufacturers may choose right materials, but they may not be able to do a good heat treatment. AAK hydraulic pilot operated pressure control valve, select and use good materials. You are welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pressure-control-valves- aak171

Logan has been a purchaser of a hydraulic company in the United States for several years, and the purchasing of hydraulic valves in China is also very smooth. But recently, a high-precision hydraulic relief valve order worth more than $30,000 wasted him a lot of time. The original hydraulic relief valve manufacturer made the samples twice, but was still not approved by the customer. His customer understood that the original manufacturer was unable to meet the requirement of 0.3mm finish size allowance, and asked him to change the hydraulic relief valve manufacturer to make samples for the third time. If the hydraulic relief valve sample for the third time still cannot be approved, the customer can only cancel the order. This order attracted the attention of his boss, who asked him to solve the problem and get the sample of hydraulic relief valve approved at one time within 20 days. Five days later, Logan consulted many hydraulic relief valve suppliers, and most manufacturers said that they could not meet the standard of 0.3mm finishing size allowance. Logan is a little worried. He looks for hydraulic relief valve manufacturers everywhere on the Internet. He left a message on our AAK website: how can we guarantee the finishing dimension allowance? All such messages are basically for difficult problems encountered in the purchase of hydraulic valves. After some communication, it is understood that the Logan was stuck on the sample approval process of the hydraulic relief valve order, and he has contacted many hydraulic relief valve manufacturers, but no solution has been obtained. I suggested Logan try our sample directly, and let the test data to speak for itself and this also saves time. Logan doesn't seem to have a choice but to expect that maybe AAK hydraulic relief valve can pass the test. A week later, AAK sent out 3 hydraulic relief valve samples. Logan did not dare to send the samples to the customer directly after receiving them, so he had to find a third party for testing before sending them to the customer. Without incident, the customer approved AAK hydraulic relief valve samples. His boss was also surprised that how a hydraulic relief valve manufacturer found by Logan this time can solve the problem so quickly at one time. The heat treatment process in the early stage is the first step of finishing the size allowance. Most hydraulic relief valve manufacturers adopt local quenching, so the heat treatment process of the workpiece is not easy to control and may be deformed. As early as 6 years ago, AAK adjusted local quenching to overall quenching. At the same time, vertical flow treatment must be required for the hoisting mode in the process of quenching and tempering, so as to minimize the influence of tissue stress and thermal stress on deformation during workpiece heat treatment, so as to meet the requirements of dimensional allowance for finishing. Logan cancelled the order with the original hydraulic relief valve manufacturer without hesitation and confirmed the order with AAK hydraulic valve in two rounds. Logan privately told us that his customers like the hydraulic relief valve manufacturers such as AAK very much. The customer pointed out that AAK should be as the priority supplier for future inquiry of hydraulic relief valves. His boss was also very satisfied with his ability to quickly solve problems this time, and put higher and higher expectations on him. AAK hydraulic relief valves, strictly controls the size allowance of finishing to ensure the accuracy of products. You can also have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-relief-valves-aak170

This Monday, Arthur sent an email to purchase 1,600 hydraulic threaded cartridge valves at one time, which was a little unexpected. Arthur came from a hydraulic equipment manufacturing company in Italy. He met with us at the PTC exhibition in Shanghai 3 years ago. At that time, he communicated with us for about half an hour. Then there were several inquiries for hydraulic threaded cartridge valves and several trial orders for hydraulic threaded cartridge valves. Last October, he suddenly sent an email saying that he had a client in Ningbo who wanted to visit AAK hydraulic valve factory. We introduced in detail a series of production links from raw material inspection and warehousing to rough machining, finishing, process inspection, assembly of valve body and spool, testing, packaging, warehousing, marking and shipping of each part of hydraulic threaded cartridge valve. After the visit, Arthur's client said they were satisfied with the scale, equipment and management of AAK factory and left. I wondered if this was really Arthur's client. More than a month later after visiting the factory, Arthur said that his company has developed a new hydraulic equipment, which requires high-precision hydraulic threaded cartridge valve. AAK needs to quote and make samples for testing as before. AAK sent 16 samples of hydraulic threaded cartridge valves after 30 days. I still think that this one will be the same as that one year ago, no big waves. I didn't understand that I made the mistake of "I thought" until receiving the large order of 1,600 hydraulic threaded cartridge valves yesterday. Today, I learned by email that it was not his client who came to visit the factory last year, but his assistant who often stayed in China. Before the company developed this hydraulic equipment, his assistant ran to more than 30 hydraulic valve manufacturers in China, especially for this special hydraulic threaded cartridge valve. AAK hydraulic valve has its own advantages in equipment and extension of equipment and on-site detail management. In particular, the component testing room of AAK is constant temperature and humidity for 24 hours, which is very helpful for hydraulic threaded cartridge valves with high precision requirements. Because of the particularity of this hydraulic threaded cartridge valve, the accuracy inspection of each component should be completed in a specific environment. Some quality problems of the products of many hydraulic valve manufacturers are just due to the deviation of the test results caused by the instability of the test environment. In the view of many factories, this may be a small detail, but AAK has done extremely rigorous testing. His assistant has not found a second one in Ningbo who pays so much attention to detail. That's why Arthur chose AAK to produce this big order of hydraulic threaded cartridge valve. AAK hydraulic threaded cartridge valves, with much attention on details, high standard and high inspection. Welcome to try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-threaded-cartridge-valves- aak169

Consuelo comes from Spain and has been gradually purchasing hydraulic manifold blocks from China in recent years. Recently, they designed a new hydraulic manifold block and wanted to sample it from an old hydraulic manifold supplier in Ningbo China. The manufacturer stated that this hydraulic manifold block has complex oil circuits, high accuracy, and is difficult to process. They are not very confident, but they are willing to try it out. 2 months later, the sample was completed, but the accuracy of the hydraulic manifold block hole was not up to standard, and the hole had hidden burrs. The manufacturer had to give up. Consuelo contacted more than 10 other hydraulic manifolds manufacturers in China, but after a week, there were no results. Consuelo was very upset after wasting more than 2 months of time. Consuelo found AAK on Google and asked if AAK was able to customize hydraulic manifold blocks with complex oil circuits. After communication, we learned that the accuracy not up to standard and the hidden burrs of the hydraulic manifold blocks produced by the original manufacturer wasted him a lot of time. According to the hydraulic manifold block drawings he provided, most machining centers are powerless. I showed him the irregular hydraulic manifolds with multi channels that AAK exported to Russian market previously. Consuelo may have seen hope and requested AAK to make samples. After 50 days, AAK shipped the test order for the hydraulic manifold blocks. 3 weeks later, Consuelo informed us via email that the AAK hydraulic manifold blocks had been approved by their engineers. After more than 2 months of frustration, he finally resolved it. I told him that for any hydraulic manifolds that require attention, contacting AAK, it may not bother you anymore. If AAK cannot handle it, then there is no need to waste time in the Ningbo area. The processing of the hydraulic manifold block with complex oil circuits is carried out by AAK using a 4 axis machining center from Okuma, Japan. One clamping can complete multiple processes, avoiding the personal equation of multiple clamping. The machining accuracy of 4 rotating surfaces is controlled within the same range, avoiding the same valve block with different accuracy. Not only can it automatically change tools, but it also has complete tool functions. On this basis, AAK upgraded the drill bit and equipped it with a Taiwan ZOTO water jet drill bit. The drill is sprayed with Cutting fluid during cutting, which not only cools the tool, but also flushes away the chips to prevent burrs. At the same time, we also added TiALN coating on the surface of the drill bit. Compared with other hard alloy drill bits, the cutting performance is more stable, the surface smoothness of the valve hole is good, and the dimensional and positioning accuracy are much higher than other types of alloy drill bits. The AAK hydraulic manifold block uses a 4-axis + ZOTO water jet drill bit for processing, even the block with complex oil circuits, it is worry free. You can also give it a try. AAK HYDRAULIC VALVES (625) 2023-07-11 https://www.aakindustry.com/info , -detail/hydraulic-manifold-blocks-aak625

A few days ago, Anthony from Spain needed to purchase a hydraulic screw-in cartridge pressure control valve equivalent to HydraForce RV12-26, but with a special requirement for the accuracy of the valve cage. Anthony chose a hydraulic cartridge valve manufacturer in Ningbo China who had cooperated with him for 2 years. However, the accuracy of the valve cage for RV12-26 hydraulic pressure control valve was unstable. The original manufacturer made samples for 3 times and all failed. 2 months have been wasted, and the engineer was very dissatisfied. Anthony was very frustrated. Last week, Anthony browsed the website of AAK hydraulic cartridge valve manufacturer on B2B and left a message: 1. Do you have procedure for RV12-26 hydraulic screw-in cartridge pressure control valve? 2. Can the valve cage of hydraulic pressure control valve be customized with special requirements? 3. Can you ensure that the valve cage of each hydraulic pressure control valve meets the accuracy requirements? After communication, we learned that Anthony encountered a problem with the accuracy of the hydraulic pressure control valve cage when purchasing from the original hydraulic cartridge valve manufacturer. In response to his special requirements, we provided 2 suggestions: optimizing the precision machining of the valve cage and conducting 100% independent testing of the valve cage accuracy. Anthony asked, how does AAK detect the accuracy of valve cages? First, I told Anthony that accuracy is not determined by testing, but rather by precision machining. For valve cage with special requirements, focus on precision machining only cannot avoid potential problem completely. At this point, testing is to eliminate the hidden problem, and the original hydraulic cartridge valve manufacturer may have overlooked this detail. The valve cage of this hydraulic pressure control valve can be precision machined using the TOYODA cylindrical grinder from Japan. The stable grinding accuracy is the best among our experienced technicians, not only high in accuracy, but also stable. Especially low vibration bed and high- precision feed mechanism, combined with specialized cutting fluid, the processed hydraulic pressure control valve cage has a clear contour and a surface finish of within Ra0.2μm, the dimensional accuracy tolerance is within 0.5μm. Regarding the inspection of the hydraulic pressure control valve cage, please refer to the video of our workshop's on-site operation. This is a KEYENCE measuring instrument imported from Japan, which is equipped with a 20 megapixel CMOS laser probe. Before testing, our QC first inputs the size requirements of the valve cage into the program, then places the valve cage into the platform. After starting the equipment, the laser probe starts working, and the valve cage of the hydraulic pressure control valve is imaged 360 degrees by the camera and automatically focuses. The entire contour data of the valve cage can be read in 3-5 seconds, and the program automatically compares. If the accuracy meets the standard, the screen will display green, otherwise it will be red. With this authoritative testing, the defective valve cages are eliminated to ensure that the accuracy of each valve cage delivered is up to standard. Today, we received the trial order from Anthony, who is our third new customer in Spain. AAK hydraulic screw-in cartridge pressure control valve, strictly controlled with 2 processes, you can also give it a try. AAK HYDRAULIC CARTRIDGE VALVES (735) 2023-12-12 https://www.aakindustry.com/info , -detail/pressure-control-valves-aak735

Irek from Russia has placed 6 orders with AAK for hydraulic valve blocks, including ductile iron hydraulic valve blocks, aluminum hydraulic valve blocks, and alloy steel hydraulic valve blocks. 4 months ago, Irek informed us via email that the 5 pcs of ZG20SiMn material hydraulic valve blocks were tested and there were a few residual burrs in the deep holes. No burrs were found in the hydraulic valve blocks purchased from AAK previously. After investigation, I found that the operator was careless during the sample process. AAK is willing to bear all costs incurred in removing the burrs on the hydraulic valve blocks in Russia, then there has been no further news from Irek, but what has come finally is a 100 pcs of repeat order for the hydraulic valve block that was complained. Similar issues have also occurred in our American customers. They only reminded us, and continued to place the orders. For AAK hydraulic valve blocks, cartridge valves, and hydraulic manifolds, I cannot guarantee that every product does not require after-sales service for every customer. However, AAK's advantage in after-sales service is that most of the same hydraulic valve blocks, cartridge valves or hydraulic manifolds from peers or abroad are returned to the factory for repair if they have quality issues. If AAK has quality issues, our customers can resolve them within half an hour, and if the hydraulic components break, they can directly replace them within half an hour. Therefore, we now have high-end customers such as SUN Hydraulics, HydraForce, Skyjack, Honeywell etc. Although AAK is a small company, our positioning is clear. The pain point of products of our peers is AAK's greatest advantage. As I mentioned earlier, AAK focuses on orders from first-class companies in the world. Because a first-class enterprise has a strong technical force and maintenance department, those small problems can be solved easily. Good quality means no after-sales service, and no after-sales service is the best after- sales service. This is also AAK's after-sales definition of hydraulic valve blocks, cartridge valves, and hydraulic manifolds. I am confident in the manufacturing quality of AAK hydraulic valve blocks, cartridge valves, and hydraulic manifolds. Even if AAK encounters quality issues, they are minor issues, easy to maintain, and quick to replace parts. I am thinking that if similar problems occur to poor customers abroad, it will be a big trouble. AAK hydraulic valve blocks will definitely be returned, but after working with a large enterprise, this small problem will be resolved. Poor customers may not have maintenance capabilities at all and do not know much about technology. If there is a problem, whether it's a major problem or a minor problem, he won't solve it or doesn't want to solve it. He will tell you that there is a quality problem, you either send someone to repair it or get it returned. At this time, many hydraulic valve block manufacturers often have no choice. AAK hydraulic valve blocks, cartridge valves, and hydraulic manifolds focus on improving quality, especially manufacturing quality, must be aligned with international first-class brands. This is the only correct development path for AAK at present, and there is no second way to go. Regardless, any manufacturer of hydraulic valve blocks, cartridge valves, and hydraulic manifolds must have good manufacturing quality and benchmark against international first-class brands, and then do business with first-class enterprises. Unfortunately, the vast majority of peers do not see it this way. They focus on orders and prices. AAK hydraulic valve block, no after-sales service, is the best after-sales service. https://www.aakindustry.com/in , fo-detail/hydraulic-valve-block-aak534

Last week, Marc and I talked about a processing detail of hydraulic manifolds. By the way, I asked him why did you choose AAK for your first hydraulic manifold supplier 4 years ago. He just sent me 1 word: trust.   These days, I wonder: What is the core of AAK hydraulic manifolds? Is the manufacturing quality good in China? It must be good. The problem is that your hydraulic manifold is of good quality. How can you make customers think it is really good, and really reliable? I think they finally decided to place order with AAK because they trusted me, so I feel that trust is the key to a deal for the grassroots and our small bosses of hydraulic manifolds.   AAK hydraulic manifold is not a brand. I don't have a brand. It is neither a marketing, I don't study marketing, so I think trust plays a role. Whether brand or marketing, we seem to be pulled away by these words. AAK hydraulic manifolds do business through the Internet. In the end, I feel that it is not marketing, nor brand, but trust.   I want to put trust and reliability first. On the Internet, I never think about brands or marketing. As long as you think about how customers can trust me, you should think in this direction. You should think about the things that can be seen, touched and landed. If you do this well, in fact, the marketing is successful and the brand is gradually emerging. With trust and reliability in mind, instead of brand and marketing, the final goal was to achieve the goal of brand and marketing. Finally, the performance rose, and AAK hydraulic manifolds have been walking in this way.   99% of industrial products have no loyalty and reputation. Have you ever seen anyone hype hydraulic manifolds? AAK business relies on: 1) The hard strength of hydraulic manifold manufacturing quality. 2) The ingenious strength of peripheral innovation. 3) The soft power of online trust. The efficiency brought by trust is the highest, and the influence brought by trust is the greatest. The bonus brought by trust is more high-quality customers. To achieve performance and profit, we can only rely on high-quality customers. There is no second way to go.   The reliability is better than all brands and marketing. The promotion of AAK hydraulic manifolds is to pay less trust tax, and the promotion of AAK hydraulic manifolds is to reap trust dividends.   As for being a person that others can trust, I would like to tell what I saw in a hydraulic manifold factory of my colleague in the same industry yesterday. His assistant knocked on the door and said that he was uncertain about a customer. The customer requested to talk to the boss directly. The colleague said to his assistant: Tell the customer that the boss is not in the office. I hastened to say that you should leave me alone. In fact, I'm not worried about the customer on the phone. I'm more worried about the assistant. The assistant is watching him and learning from him.   Why can't many employees trust their managers? Most of the time, it is not because of big things, but just because of these small things. The dishonest small things that often happen in daily life gradually weaken and erode the credit. Small things are very important. For example, if someone comes to see you, you can make an appointment again if it is inconvenient. You can't tell the assistant that the boss is in a meeting, but actually the boss is not in a meeting. Your employees will always look at such small things.   There is an old saying in China, which is called "like a fish in water". For fish, water exists naturally. The fishes are full of water around them, and they are completely immersed in the water, even without being aware of the existence of water. If water is dry or polluted, fish will realize that water is its most basic need. Without water, fish will die. In business, trust is an indispensable part of transactions, and we rely on it. If polluted or not, we will die.   Without trust, all transactions will fail. AAK Hydraulic manifolds never do such a silly thing. https://www.aakindustry.com/info-det , ail/hydraulic-manifolds-aak394

This morning, Robert sent an email asking about the production time of 1,200 hydraulic check valves, which surprised me a little, because in the past 2 years, he normally just placed small quantity trial orders of hydraulic check valves. Robert is a purchaser of John Finlay company in Australia. We met 2 years ago. A batch of hydraulic tamping machine equipment of their company began to receive complaints again and again from the previous year. After inspection, it was found that the hydraulic check valve in the equipment did not maintain pressure. Robert contacted the original hydraulic check valve manufacturer to find a solution. The manufacturer advised that the working pressure and working frequency of the hydraulic tamping machine may be too high, resulting in frequent collision between the ball valve and valve seat of the hydraulic check valve, affecting the sealing effect. The only solution is to replace the leaked hydraulic check valve. Although replacing the hydraulic check valve is a heavy workload, Robert has no choice but to accept. The trouble is that 6 months later, the same problem happened again. The customer was very unhappy. The boss asked Robert to find a new supplier of hydraulic check valve immediately. Robert suggested purchasing hydraulic check valves from AAK to replace those unqualified ones, because the durability test of AAK hydraulic check valves was the most lasting among all of the samples from different manufacturers at the beginning. At present, there is an equipment installed with AAK hydraulic check valve, which has been used for 1 year but without any abnormality. The boss thought that the price of AAK was more than 20% higher and unacceptable, and asked Robert to look for a new manufacturer of hydraulic check valves. In the process of continuous screening, Robert selected 5 hydraulic check valve manufacturers to try their samples. Basically, after half a year, these hydraulic check valve samples had similar problems one after another. Robert was at a loss. He once again suggested to the boss to purchase AAK hydraulic check valves. After comparing so many hydraulic check valve manufacturers, none of their samples can be used for more than 1 year under this working condition, but the equipment installed with AAK hydraulic check valve has been used for nearly 2 years, and there has been no failure to maintain pressure. If the hydraulic check valve needs to be replaced every 6 months, the after-sales cost is too high, which has far exceeded the 20% higher cost of the hydraulic check valves. More importantly, it brings the reputation of unstable equipment quality to users. After listening to Robert's analysis, the boss approved AAK as the preferred supplier of their company for hydraulic check valves. It took Robert 2 years to persuade his boss to place a large order with AAK. He knew that the durability of AAK hydraulic check valve was more than twice that of other suppliers, and the after-sales cost was also low. How can AAK hydraulic check valve be durable under high pressure and high frequency use? According to the working condition requirements and working frequency of their company's equipment, AAK uses silicon nitride (Si3N4) ceramic ball as the ball valve, which has twice the hardness than steel, lower thermal expansion coefficient than steel ball, good roundness and small friction coefficient. It can resist the corrosion of most chemicals and can still not be worn under the condition of high pressure and high frequency use. The vast majority of hydraulic check valves are steel balls. Because the price of silicon nitride (Si3N4) ceramic balls is more than several times higher than that of ordinary steel balls, it will not be considered for cost saving. However, AAK uses special materials for special needs in combination with working conditions and use frequency, especially what most hydraulic check valve manufacturers are unwilling to do, but AAK likes this challenge most. AAK hydraulic check valves, focused on meeting customer needs. You can also give it a try! https://www.aakindustry.com/info-detai , l/hydraulic-check-valves-aak167