Valves

The original cartridge valve manufacturer could not improve the cone hole roundness and surface roughness of the hydraulic cartridge relief valve. AAK used 3 skills to ensure that the cone hole roundness of the hydraulic cartridge relief valve was within 0.003, the surface roughness was Ra0.6, and it was linear sealed, without leakage, helping Salim out of the after-sales trouble that has stumped him for in 3 months. Salim is from Chile. A batch of hydraulic cylinders of their company have been complained by customers that they are unstable. After checking, it was found that the hydraulic cartridge relief valve was leaking, which caused the abnormal operation of the oil cylinder. The root cause was the roundness of the cone hole and the surface roughness. The engineer requires to replace the hydraulic cartridge relief valve, and the cone hole roundness is within 0.005, and the surface roughness is below Ra0.8, which can completely solve the hidden danger. The original manufacturer of the hydraulic cartridge relief valve said that the new requirements is 50% higher than before, but he was willing to try. He made samples twice, but still failed to meet the standard. 3 months passed without any result. The customer was unhappy and Salim was worried. Salim contacted me under the introduction of AAK's old customer Robert. According to his introduction above, the parameter requirements alone are not a big problem, but the internal structure of the original hydraulic cartridge relief valve should be considered. Our engineer reviewed his drawings and the anatomical drawing of the original hydraulic cartridge relief valve manufacturer, and came up with the plan 2 days later. Salim asked AAK to make samples. After 35 days, AAK sent 12 hydraulic cartridge relief valves. 3 weeks later, Salim emailed that after replacing the hydraulic cartridge relief valve of the original manufacturer, the hydraulic cylinder worked normally. At the beginning of last month, Salim sent a PO for 240 hydraulic cartridge relief valves. 8 months later, the customer no longer complained about the hydraulic cylinder. His boss was very satisfied with the accuracy of AAK hydraulic cartridge relief valves. The taper hole roundness was within 0.003, the surface roughness was Ra0.6, and it was linear sealed and leak free. All their hydraulic cylinders in stock should be replaced with AAK hydraulic cartridge relief valves. AAK engineers improved the processing technology with 3 skills for the internal structure of the hydraulic cartridge relief valve: 1. The valve seat of the hydraulic cartridge relief valve shall be turned. First, rough holes shall be drilled. The rotation speed of the drill is 1500~1800r/min, and the feed speed is 140~160mm/min. Then, the bottom hole of the thread shall be machined at the bottom of the rough hole. In the middle section of the rough hole, an enlarged hole shall be machined with a boring cutter. 2. Finish the top of the rough hole with a milling cutter to form a tapered hole, and then grind the enlarged hole with an internal and external grinder. 3. Use self-made grinding tools to grind and polish the top of the tapered hole in 2 ways: low speed, fast feed, low speed and slow feed. The coaxiality between the column bar in the middle of the tool and the top cone surface is strictly controlled within the range of 0.003~0.005. AAK hydraulic cartridge relief valve, there is unique skill to process, you can also try a small order! https://www.aakindustry.com/info-det , ail/cartridge-relief-valves-aak419

Evander is from a hydraulic equipment manufacturing company in Greece. He has been in purchasing for 3 years smoothly. Last March, they tested a hydraulic power unit. The hydraulic pressure control cartridge valve used was from a local manufacturer. During equipment commissioning, the operation was unstable. The sensitivity of the hydraulic pressure control cartridge valve port became dull under the influence of oil pressure in the oil circuit when it is open or closed. The original manufacturer had no solution. Evander contacted several other hydraulic cartridge valve manufacturers for inquiry, but no result. He was very worried. Evander searched AAK website on Google and noticed that AAK has solved the problem of hydraulic cartridge valves for customers many times. He left a message: Can AAK make the hydraulic pressure control cartridge valve stable, and open and close sensitively? After communication, we learned that he was facing difficulties in the test run. According to his hydraulic pressure control cartridge valve drawing and system schematic diagram, AAK engineers analyzed that as long as the original structure of the hydraulic pressure control cartridge valve was optimized, the problem could be solved. Evander saw the hope and requested AAK to make 20 samples. After 45 days, AAK delivered the samples of 20 hydraulic pressure control cartridge valves. 8 months later, Evander sent the first order of 500 hydraulic pressure control cartridge valves. Their customer was satisfied with their hydraulic power unit prototype, which operated stably and opened and closed sensitively, so the first order quantity was also surprising. AAK can replace the local cartridge valve manufacturer in Greece, the key point is that AAK hydraulic cartridge pressure control valve has two-way control oil circuit for opening and closing valves, which has high sensitivity, stable operation, and good reliability. We optimized it from 3 points: 1. The hydraulic cartridge pressure control valve spool has the conduction characteristic, and the valve spool structure is composed of the upper closed valve oil cavity cylindrical surface, the lower open valve oil cavity cylindrical surface, and the middle seal isolation boss cylindrical surface. The through cavity in the valve spool is composed of cylindrical through holes and boss holes at the upper and lower ends. 2. The valve spool mounting hole on the valve body is composed of 4 cylindrical stepped holes from top to bottom, and the diameter decreases from top to bottom. The upper end of the fourth step hole has a sealing cone, the lower end of the third step hole has a side wall of the valve body, and there is an oil inlet of the main oil circuit, and the fourth step hole is an oil outlet of the main oil circuit. 3. The second step hole and the intermediate seal isolate the cylindrical surface of the boss to form a reciprocating dynamic seal. There is a transition seal guide sleeve between the first step hole and the cylindrical surface of the upper closed valve oil chamber, and the inner hole of the guide sleeve is reciprocating dynamic seal. The optimized hydraulic cartridge pressure control valve, the upper and lower end faces of the valve spool are connected, and the oil pressure of the oil circuit has no effect on the lifting movement of the valve spool, and the size and fluctuation of the oil pressure of the main oil circuit does not affect the opening and closing sensitivity of the valve spool. It ensures the reliability, stability and sensitivity of the opening and closing state of the hydraulic cartridge pressure control valve. AAK hydraulic pressure control cartridge valve, 3 main selling points, sensitive, stable and reliable, you can also try it! https://www.aakindustry.com/info-detail , /pressure-control-cartridge-valves- aak490

The more complex the oil passage of the hydraulic valve block is, the more difficult it is to remove the burr. If the burr is not completely removed, either the hydraulic valve block is scrapped or the whole hydraulic system is paralyzed. AAK is not only 50% more efficient than its peers in processing high-precision and difficult hydraulic valve blocks, but also 100% burr free.   Liam, from Canada, sold a batch of hydraulic shield machines. Because of the burr remained in the hydraulic valve block, it was needed to replace the hydraulic relief valves at a high frequency, which affected the construction. The customer directly complained to the boss and asked the problem to be solved completely within a month, otherwise he would need to charge for the loss of working time. The manufacturer said that because the oil circuit of the hydraulic valve block is complex, it is difficult to ensure 100% burr free. Liam had to find a new manufacturer of hydraulic valve blocks. He kept sourcing for 5 days, but no factory was unwilling to complete the production of 20 hydraulic valve blocks with 100% burr free in 25 days. Liam had a big headache.   Liam got into touch with me directly under the introduction of his friend, and explained the above difficulties he encountered. According to his hydraulic valve block drawing, just from the perspective of processing, it is not difficult, but the burr removal of some holes needs unique skills, which is the reason why other manufacturers are unwilling to produce. After 20 days, 20 hydraulic valve blocks were produced at AAK, and they were finished in 20 days from drawing to shipping.   Three months later, Liam sent an email to say thanks to AAK. The hydraulic shield machine equipped with AAK hydraulic valve blocks, has been very smooth in construction, and no burrs were found. Liam was surprised how AAK completed the hydraulic valve blocks with complex oil circuit free of burr in such a short time? AAK finished the production of hydraulic valve block efficiently, and it is 100% burr free, lies in the following 3 unique skills:   1. In terms of equipment, the German HECHERT 630 horizontal machining center has 12000 spindles, 60 HSK100 high-speed tools, an XYZ travel of 1050-900-800, a moving speed of 65M, and a tool change time of only 1S. Combined with the Siemens 840D operating system, the machining accuracy can be guaranteed, and the machining efficiency is more than twice that of most machining centers.   2. Technically, AAK adopt the intelligent grinding to replace the traditional abrasive flow deburring technology. During grinding, the main shaft of the equipment can swing 360 ° at will, and there is no dead angle during grinding. No matter the surface of the hydraulic valve body, or the inner hole, cross hole, blind hole of the hydraulic valve block, as well as the end face and inner and outer contour of the orifice, the burrs can be completely removed.   3. In terms of detection, the German Karlstorz industrial endoscope is used. The probe can be bent and rotated, and detect the oil passage of the hydraulic valve block for 360 ° without dead angle, to ensure that the hydraulic valve block is free of burrs before shipment.   Last week, Liam sent us an inquiry for another hydraulic valve block. He told me privately that the boss now pays more and more attention to him, and gives him more and more business to handle.   AAK hydraulic valve blocks, high efficiency, high accuracy, no burrs, you can give it a small try. https://www.aakindustry.com/info-detai , l/hydraulic-valve-blocks-296

For hydraulic pilot operated relief valve with machining accuracy below 0.5μm, and test accuracy 0.05% FSO BFSL, Renzo found AAK only. Renzo comes from an Italian hydraulic equipment company and has been engaged in hydraulic cartridge valve procurement for many years. At the beginning of last year, they developed a high-end hydraulic injection molding machine, which requires a hydraulic pilot operated relief valve. Renzo chose an old supplier to make samples, and the machine test run was also successful. The equipment began to be put into production, but 3 months after sales, a customer complained that the positioning of the injection molding machine was inaccurate, resulting in product deformation. After troubleshooting, it was found that the flow of the hydraulic pilot operated relief valve was unstable. According to the feedback of the original hydraulic relief valve manufacturer, the accuracy of this hydraulic pilot operated relief valve requires to be within 1μm, it is difficult to guarantee this accuracy on each valve, and it can be replaced for free. However, there are more and more similar complaints later, and the second batch of injection molding machines will also be put into production. The boss was very angry and asked Renzo to solve it at one time and find a hydraulic relief valve manufacturer with stable quality. Renzo contacted more than 10 hydraulic cartridge valve manufacturers, but most of them were not able to achieve the accuracy within 1μm, Renzo was very anxious. Renzo began to source new hydraulic relief valve manufacturers online, and found AAK Hydraulic Valves on Google. He requested that the machining accuracy of each hydraulic pilot operated relief valve needs to be within 1μm. I replied to him that unless accidental, the machining accuracy of AAK hydraulic pilot operated relief valve can be within 0.5μm, Renzo was relieved. One month later, AAK delivered the first batch of quantity. Three months later, Renzo emailed that with AAK hydraulic pilot operated relief valves, there was no customer complaint that the positioning of the injection molding machine was inaccurate during operation, and the processing accuracy was all within 0.5μm. The next day, his placed the order for the second batch of hydraulic pilot operated relief valves. AAK can produce the hydraulic pilot operated relief valves that can be 100% qualified, and the machining accuracy is within 0.5μm, it is mainly because that we control both the processing and testing strictly, and the domestic hydraulic cartridge valve manufacturers generally cannot control the details of the process. AAK uses American Hardinge ultra-high precision machine tool to produce this hydraulic pilot operated relief valve, and the machining accuracy can reach 0.1-0.5μm, ensuring that the valve hole accuracy of each hydraulic relief valve is consistent. After processing, each hydraulic relief valve is tested. The pressure test bench is equipped with BD SENSORS pressure sensor imported from Germany, which has strong overpressure resistance. The range can reach 0 to 2200bar, and the test accuracy is 0.05% FSO BFSL. It is equipped with pressure measuring equipment with digital display and power-saving output. During the test, technicians can clearly see the test data, which is easy to operate, easy to track, and no oversight. AAK hydraulic pilot operated relief valve, each product makes you feel at ease, welcome to have a small try! https://www.aakindustry.com/info-detai , l/hydraulic-pilot-operated-relief-valves- aak29 , 5

The 133rd Canton Fair is coming to an end soon. Our hydraulic valve counterparts have also participated in the exhibition, but it seems that most of the exhibitors are not very satisfied with this Canton Fair. How can you make customers spontaneously enter your booth and make them remember you? The inspiration I got from hydraulic valve clients is to master both static and dynamic languages, which may allow us to do well in the Canton Fair. One time, at the exhibition, an old customer looked for AAK hydraulic valve booth for over half an hour. He complained: All the booths have the same storefront, why can't AAK booth add a storefront? I was stunned for a moment, almost all booths had no storefront. After returning, I was also thinking. I have always believed that the customer's complaints are our growth point. Once I was browsing a commercial street, where the vast majority of stores had similar storefronts, but one stood out from the crowd. Not only did it have storefronts, but there were also attractive advertising slogans, and many people entered that store. This gives me the idea of how to set up a storefront. The reason whether a new hydraulic valve customer is willing to place an order or not, lies in whether they trust you and look up to you. Your performance in hydraulic valves, your major customers in hydraulic valves, and your emphasis on quality should make new customers who are visiting the exhibition feel that this hydraulic valve manufacturer is a bit powerful and unique. How can static language bring customers in? Use copywriting to attract customers, and the 3 walls of the booth should have copywriting on them, not just products. Especially for booths, it is necessary to customize a unique entrance, and write some advertising slogans on the entrance to achieve a 3- second heart attracting effect. The advertising slogan on the storefront of AAK hydraulic valve exhibition booth is as follows: 1. Manufacturing quality benchmarking first-line brands, the top 3 hydraulic cartridge valve manufacturer in Ningbo, China. 2. Valves used by Russian customers on Aircrafts. 3. 3-Year Warranty with a service life of 2 million cycles. AAK hydraulic valve, 3 advertising slogans, 3 walls of copywriting, totaling over 100 words, this is what I understand as static language, which also determines how many customers will enter our booth. The second language is dynamic, how to communicate with incoming hydraulic valve customers. Some customers come in, point out the products and ask you to quote the price. Most people just quote directly, which is actually incorrect. No quotation without value, no transaction without trust. The customer needs the price of the hydraulic valve, and you need to introduce the advantages and characteristics of your hydraulic valve to the customer. After 1-2 minutes of talking, the customer has a little affirmation of you from their heart. If the customer still has time, let them know which customers have purchased the hydraulic valves from you, which customers have encountered any problems, and how your hydraulic valve has helped them solve the problem. At this point, the customer starts looking up to you and has initial trust. Then enter the topic, what are the differences between our hydraulic valves and our peers? Extract the selling points and turn them into purchasing reasons. In the eyes of the customers, the emphasis on the manufacturing quality of AAK hydraulic valves is not only differentiated, but also unique. AAK hydraulic valves, no value, no quotation; no trust, no transaction. AAK HYDRAULIC VALVES (572) 2023-04-29 https://www.aakindustry.com/info , -detail/hydraulic-valve-manufacturer-aak572

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

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

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

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

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

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

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

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

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