AAK Hydraulic Cartridge Relief Valve, helped Monroe promoted to purchase manager Monroe is from Turkey, and has cooperated with AAK for 3 years. He purchases cartridge valves equivalent to HydraForce standard parts 3-5 times a year. Some time ago, he emailed me to ask: Can you customize non-standard parts of hydraulic cartridge relief valve? I was a little surprised because there was no inquiry for non-standard cartridge valves in the past 3 years. After communication, it was learned that the hydraulic cartridge relief valve used in one of their hydraulic cylinders encountered a problem. The vibration of the oil cylinder was severe, and the problem came from the hydraulic cartridge relief valve, which was slow in response to overload and overflow. This cartridge relief valve was customized from a hydraulic cartridge valve manufacturer in Ningbo. The manufacturer had optimized it twice, but the improvement was not obvious. I asked him if as long as the hydraulic cartridge relief valve is sensitive to overload and overflow, it can solve the problem of cylinder jitter. I was just afraid to waste his sample time. After getting the approval of their engineer, according to his system schematic diagram and the original drawing of the hydraulic cartridge relief valve, AAK engineer judged that after change the pilot function of the original hydraulic cartridge relief valve, it can react sensitively. After 35 days, AAK sent 8 samples of hydraulic cartridge relief valves. During the CNY, he sent us a PO of 280 hydraulic cartridge relief valves. He said that the cylinder fitted with AAK hydraulic cartridge relief valve very well, and did not shake. The customer was very satisfied with the trial of the cylinder, and placed the order with them for the cylinder. AAK hydraulic cartridge relief valve is sensitive to overload and overflow. The key is that we have made 3 breakthroughs in valve spool, seat structure and sealing. The optimized AAK hydraulic cartridge relief valve strengthens the pilot function, and can directly push the valve spool to release pressure without opening the pilot structure first. In the overload of hydraulic cartridge relief valve, the overflow action is more direct and sensitive. 1. Change the through-hole of the oil replenishing valve spool of the hydraulic cartridge relief valve to be larger than the cross-sectional area of the valve seat opening, and the oil replenishing valve spool and the overflow valve spool are arranged coaxially, and the pressure regulating screw is connected with the pressure regulating lock nut through the thread. 2. One end of the oil inlet of the valve seat is connected with the rear through-hole of the oil filling valve spool, and is equipped with a sealing ring and a spring. 3. The left end of the valve seat is the clamping part, the middle and front parts are the plug-in parts which are similar to the cylinder structure,
has purchased hydraulic valves from for 6 years, and has cooperated with in several non-standard hydraulic cartridge valves. Some time ago, some customers complained that their logistics transmission equipment was not easy to operate. After the after-sales inspection, it was found that the hydraulic cartridge relief valve on the rotary device failed to buffer and the pressure regulation was not smooth. The original manufacturer said that this hydraulic cartridge relief valve was benchmarked to the standard parts of HydraForce, and he was unable to optimize. contacted me and asked me how to make the hydraulic cartridge relief valve easy to adjust pressure and have buffering function. According to the hydraulic schematic diagram and the original hydraulic cartridge relief valve drawing provided, engineer found that the requirements can be met as long as the original structure is improved. After 35 days, sent 20 samples of hydraulic cartridge relief valves. Last week, Clinton sent a PO for 200 hydraulic cartridge relief valves. He said that when hydraulic cartridge relief valve was installed, the customer no longer complained. It not only provided convenient pressure regulation and effective buffering, but also improved the stability of the equipment. They planned to replace the whole batch of equipment with hydraulic cartridge relief valves. hydraulic cartridge relief valve, the spool, buffer piston and pressure regulating valve housing cooperate to achieve buffer overflow effect, and the overall performance is reliable and stable, mainly from 3 unique structures: 1. The valve housing is provided with a first oil port, and the valve seat is provided with a second oil port. The valve spool can move axially, and the front end cooperates with the rear port of the valve seat to control the on-off between the second oil port and the first oil port. The channel port in the front end of the valve spool is provided with a plug, and the plug is axially provided with a damping hole. The front end face of the valve spool is equipped with a filter screen, and the front pressure surface of the valve spool is larger than the rear pressure surface. 2. The inner cavity of the front end of the pressure regulating screw nut has a buffer piston, and the rear end has a guide part. The radial bulge in the middle forms a convex ring part. The axial opening in the front end matches with the rear end of the valve spool. The oil supply in the middle of the convex ring part is with the connecting channel outside the rear end. 3. The pressure regulating screw is hollow at the rear end of the valve spool to form an inner cavity, which can move axially and change the axial force of the spring. The inner cavity wall of the front end of the pressure regulating screw is matched with the front end face of the convex ring to limit the buffer piston to move forward.
Dual-function Hydraulic Cartridge Proportional Needle valve, AAK customized part replaced HydraForce standard part Devante is from a Spanish hydraulic equipment manufacturing company, and has been engaged in procurement for more than 5 years. Last February, they upgraded an injection molding machine, focusing on the selling point of "high speed when empty, low speed when heavy load". The engineer asked Devante to purchase the hydraulic cartridge proportional needle valve of HydraForce. During the equipment commissioning, it was found that the pressure relief and flow of the hydraulic system of the equipment was conflicted with the hydraulic cartridge proportional needle valve, resulting in unstable operation of the equipment and jitter. HydraForce said that there was no time to customize the hydraulic cartridge proportional needle valve. Devante contacted several cartridge valve manufacturers and had no news. Devante was very worried. Devante browsed AAK website on Google and left a message: 1. Can AAK customize the hydraulic cartridge proportional needle valve, and the performance benchmarking HydraForce? 2. The function of smooth flow passage is required. 3. The function of variable flow gain is required. At the beginning, I thought that he was requested for AAK hydraulic cartridge proportional needle valve to benchmark the standard parts of HydraForce, but it was turned out that he needed us to optimize the standard parts of HydraForce. According to the equipment abnormality video, the original hydraulic cartridge proportional needle valve drawing, and their required functions sent by Devante, after discussion, AAK engineers was 90% confident. Devante asked AAK to make samples. After 40 days, AAK sent 15 samples of cartridge proportional needle valves. 2 months later, Devante informed that the market promotion of the upgraded equipment was smooth. Their engineers were satisfied with AAK hydraulic cartridge proportional needle valves, especially its variable flow gain characteristics, and smooth flow characteristics, small pressure impact during pressure relief, and accurate flow control. We mainly made 3 ingenious actions on the valve housing and valve spool, and solved the problem that HydraForce didn't want to do. 1. The lower part of the valve spool is arranged in the valve housing and sealed with the valve housing line. The upper part of the valve spool is connected with the control cover plate, the upper end of the control cover plate is connected with the valve cover with threaded holes, and the displacement sensor is installed on the threaded holes of the valve cover. The lower end of the valve spool is connected with the upper cavity of the valve spool. When the valve spool is at the lowest end, the valve is closed. When the valve spool moves upward, the valve gradually opens.
Hydraulic Cartridge Pressure Control Valve with 450bar pressure resistance, AAK's service life is twice that of its peers Gallagher is from a hydraulic equipment manufacturing company in Brazil. His purchase has been smooth, but a hydraulic cartridge pressure control valve stumped him. In the second half of last year, they purchased high-pressure hydraulic cartridge pressure control valves for hydraulic power units. About half a year later, a customer complained that the hydraulic cartridge pressure control valve was leaking. According to the feedback from the original hydraulic cartridge pressure control valve manufacturer, the leakage was caused by ultra-high pressure 450bar and it can only be replaced with new one. Gallagher realized that the service life of the hydraulic cartridge pressure control valve produced by the original manufacturer was only 6 months, and the customer required at least 1 year. Gallagher contacted other cartridge valve manufacturers, but none of them was able to guarantee the service life of 1 year for the hydraulic cartridge pressure control valve that is resistant to ultra-high pressure of 450bar. Gallagher was worried. Gallagher found AAK website on B2B, noticed many customer cases related to hydraulic cartridge pressure control valves, and sent an email asking: Can AAK ensure that the hydraulic cartridge pressure control valve withstand ultra-high pressure 450bar working condition, and the service life is more than 1 year? According to the hydraulic system schematic diagram and the original production drawing of the hydraulic cartridge pressure control valve, AAK engineers found that the pressure relief method has a great impact on the valve, will consume the valve life, and is easy to leak. Gallagher asked AAK to make samples. After 35 days, AAK delivered 30 hydraulic cartridge pressure control valves. Last week, Gallagher informed us by email that AAK hydraulic cartridge pressure control valves had been used for 9 months, and no customer complained about leakage. The boss asked to purchase in bulk from AAK to replace the original hydraulic cartridge pressure control valves. I told him that 1 year's life is our basic requirement. He told me that his boss valued the service life of AAK hydraulic cartridge pressure control valve. The other cartridge valve manufacturers can only guarantee a service life about 6 months, while AAK could last more than 1 year. The pressure relief mode of this hydraulic cartridge pressure control valve, is optimized from the following 3 points: 1. The valve body of the hydraulic cartridge pressure control valve is divided into the upper valve body and the lower valve body, and then sealed and fastened with bolts to form the valve body. One end of the valve hole of the upper valve body is used as the pressure fluid inlet, and one end of the valve hole of the lower valve body is used as the pressure fluid outlet.
Hydraulic Cartridge Directional Control Valve with high-precision valve hole, AAK helped Santiago win big order The cylindricity of the valve hole of the hydraulic cartridge directional control valve is 0.002mm, and the roughness is Ra0.05. The supplier who has cooperated for 3 years gave up 2 weeks after receiving the order. After AAK took over, the precision of the hydraulic cartridge directional control valve was constantly challenged from 3 aspects. After processing, the cylindricity was less than 0.001 mm, the roughness was Ra 0.04, and the consistency of component dimensions was within 0.001 mm. 3 months later, Santiago gave AAK an order for 1000 hydraulic cartridge directional control valves. Santiago is from a hydraulic equipment manufacturing company in Brazil. In January this year, their company needed a batch of hydraulic power units with high requirements, which also had high requirements for hydraulic cartridge directional control valves, especially the valve hole cylindricity below 0.002mm and roughness Ra0.05. Santiago chose a hydraulic cartridge valve manufacturer who had cooperated for 3 years to make samples. 2 weeks later, the manufacturer gave up due to not able to meet the valve hole high accuracy of the hydraulic cartridge directional control valve. Santiago found AAK on Google and needed our help to sample it. After communication, we learned that the original manufacturer was not helpful. I told him that for hydraulic cartridge valves with similar accuracy, we had customized them and also supplied them to Brazilian customers. Santiago seemed to see hope and sent a test order for 20 hydraulic cartridge directional control valves. After 40 days, AAK delivered samples. After receiving the samples, Santiago just advised us that the sample accuracy met the requirements, and there was no further news. 3 months later, Santiago suddenly sent us an order for 1000 hydraulic cartridge directional control valves, and advised us that their customer was very satisfied with their hydraulic power units. They successfully received a large order from customer. They also stressed the importance of large goods, and should ensure that there is no deviation in accuracy. AAK's machining of hydraulic cartridge directional control valve holes with high precision requirements mainly comes from 3 points. Once determined, there is no deviation. 1. In the rough machining process, the high-precision machine tool in Japan and the high-pressure internal cold drilling U-drill are used. The range of valve hole diameter can be 13.5mm, and the hole straightness can be within 0.02mm. General hydraulic cartridge valve manufacturers do not have this kind of drill. 2. In the high-precision valve hole honing, the fixed size honing is adopted, which does not expand or shrink during processing, and the size allowance can be gradually removed in order.
3 Highlights of AAK Hydraulic Cartridge Counterbalance Valve, Camden gave up SUN Camden is from a hydraulic equipment company in Sweden and has been engaged in procurement for 2 years. One of their customers ordered 2 sets of customized hydraulic power units, and specially reminded that the working environment of the equipment is 20 â?? below zero. The hydraulic power unit is required to be durable for at least 1 year, and its stability should be the first. Their engineer suggested purchasing SUN hydraulic cartridge counterbalance valves, but the parameters of SUN standard parts could not fully meet the requirements of equipment working conditions, and there is no enough quantity and time to customize SUN hydraulic cartridge counterbalance valves. Camden contacted a local manufacturer of hydraulic cartridge counterbalance valves, and the manufacturer was willing and confident to sample. 3 months later, the customer complained that the equipment was not stable enough, but it was barely usable. 6 months later, the equipment went on strike. During after sales service checking, it was found that the control of the hydraulic cartridge counterbalance valve was abnormal. The original manufacturer was surprised and confused. After disassembling the hydraulic cartridge counterbalance valve, it was found that the installation torque was too large, which could easily cause the valve to jam, and there were also abnormal seals, the original manufacturer had to surrender. Camden tried to find a new manufacturer of hydraulic cartridge counterbalance valve. After a week, it was fruitless. The boss blamed Camden for poor procurement. Camden noticed AAK at Google and found that AAK Hydraulic Valve is SUN's supplier of hydraulic components for 5 consecutive years. He left a message: SUN is unwilling to sample a hydraulic cartridge counterbalance valve, and AAK is able to do a good job? The hydraulic cartridge counterbalance valve shall be durable for not less than 1 year, and its stability shall be guaranteed. I have judged that he is in trouble when purchasing hydraulic cartridge counterbalance valves. According to the hydraulic schematic diagram of the system, hydraulic cartridge counterbalance valve drawings, equipment working condition parameters and working scenarios provided by Camden, AAK engineer found that this hydraulic cartridge counterbalance valve is similar to the hydraulic cartridge relief valves that we supplied to a Russian customer 1 year ago, which had a service life of at least 1 year under extremely cold conditions of - 55 â??. Camden was very happy to learn about the similar customer case of AAK, and requested to customize the hydraulic cartridge counterbalance valve and benchmark SUN. I said that AAK does not pursue whether this hydraulic cartridge counterbalance valve is advanced, but it must benchmark SUN in stability and reliability. At the same time, AAK needs to redesign this hydraulic cartridge counterbalance valve from 3 aspects.
Buy hydraulic cartridge check valve samples 3 times a year, and hit AAK with a big order for the fourth time 1 year ago, Ferdinand from Germany left a message on AAK Hydraulic Valve website: Is there a hydraulic cartridge check valve equivalent to HydraForce? Ferdinan bought two hydraulic cartridge check valve samples from the model number I provided, then there was no news. Three months later, he bought another two samples of hydraulic cartridge check valves equivalent to SUN. Six months later, he sent a customized hydraulic cartridge check valve drawing and brought 6 samples, there was no email for 6 months. I think it's a bit abnormal, but if something is abnormal, there must be evil. He bought hydraulic cartridge check valve samples from AAK 3 times a year to test my patience and inspect the manufacturing quality of AAK. I can only comfort myself in this way. Last month, Ferdinand sent an email asking about the lead time for 1,200 pcs of hydraulic cartridge check valve customized last time. I knew that AAK had passed the investigation period of German customers. After communication, I learned that the hydraulic cartridge check valves that he purchased in Ningbo 2 years ago, were tested with 6 hydraulic valve manufacturers before and after. Either the first sample was OK, but the second one was not up to standard; Either the existing valve was tested OK, but the customized valve was abnormal. Time was wasted and delayed their equipment development. It turns out that Ferdinand was feared by some hydraulic valve manufacturers, so he was prudent to select new hydraulic valve manufacturers. This time, they will develop a hydraulic boarding bridge, which requires non-standard hydraulic cartridge check valves. From trial order to large order, AAK has been investigated for more than 1 year. Ferdinand said that the manufacturing quality of AAK hydraulic valves, whether the ones benchmarking international brands or non-standard customized ones, had been recognized by their engineers for their functions and performance, so they decided to place large quantity order of hydraulic cartridge check valves. The reason why AAK hydraulic cartridge check valve is different from other hydraulic valve manufacturers in Ningbo is that we insist on the quality of manufacturing. 1. Not make do with the equipment. No matter CNC machining center or machine tool, only high-precision ones are selected. At the same time, the fixture is upgraded and modified by ourselves, eliminating human error. 2. Materials should be paid attention to. Different kinds of imported high carburized bearing steel should be combined with AAK's proprietary heat treatment process. The hardness of the material has gone up several steps, and its wear resistance has been improved by more than 3 times. The thermal stability and compressive strength of materials have been far ahead of other hydraulic valve manufacturers.
AAK hydraulic pressure control valve has a performance of 2 million times, Davis will not change the supplier any more Davis comes from a hydraulic equipment company in the United States. He has cooperated with AAK for 4 years, and it is very smooth. It is strange that since an inquiry of hydraulic pressure control valves in the second half of last year, there has been no new inquiry from him, only the reorders of some hydraulic cartridge valves. At the beginning of August, Davis asked about the production time of 200 hydraulic pressure control valves, and only then did we know that why he did not place orders for new valves for a long time. In the second half of last year, he found a hydraulic valve manufacturer whose price was more than 20% cheaper than that of AAK, so he moved the business to that manufacturer. But now troubles come out one after another, the boss is very dissatisfied, and he is under great pressure. The most troublesome thing is that a three grip electro-hydraulic puller is weak in grasping due to the leakage of the hydraulic pressure control valve. However, the manufacturer of the original hydraulic pressure control valves prevaricated, and the high frequency of use of the equipment caused the wear of the valve body, and even refused to replace the goods. Davis regretted his decision. He caused big trouble for the first time because of the 20% price difference, and had to get back to AAK. In the past 4 years of cooperation with AAK, there was no complaint. In order to help Davis get out of the predicament as soon as possible, we adjusted the production arrangement of the workshop. 2 weeks later, 200 hydraulic pressure control valves were delivered. Davis also sent me the drawings of other valves produced by that manufacturer with lower price, and asked me to be prepared for production. AAK hydraulic pressure control valve is wear-resistant and leak free, ahead of most hydraulic valve manufacturers in 3 aspects, which are also the important points to ensure the performance of 2 million times. 1. In terms of materials, AAK adopts German 20CrNi2MoV high carburized bearing steel. Through secondary quenching + cryogenic treatment + low temperature tempering process, its microhardness is 237 ~ 247HV, and its wear resistance is 3 times higher than that of similar steels. Most hydraulic valve manufacturers may know how to choose materials, but they may not do a good heat treatment. 2. On the equipment, AAK uses the Japanese NP520X-F full-automatic grinder to finish the valve spool. The surface of the processed valve spool is like a mirror with an accuracy of 0.8�¼m, the flexibility of the valve spool is improved by at least 2 times. Most hydraulic pressure control valve manufacturers can not process the same quality valve spool as AAK.
Patrick and I know each other at the PTC exhibition in Shanghai. He has worked in HAENCHEN hydraulic equipment company in Germany for a long time. The first thing he said when he saw me was that â??I was attracted by the slogan "Hydraulic valve manufacturer of the world's top 500 companies" on your AAK boothâ??. We talked about the hydraulic threaded cartridge valves for more than half an hour, especially introduced the difference of AAK hydraulic threaded cartridge valves on the specific details. He was surprised that the details of AAK had caught up with his local hydraulic valve manufacturers in Germany. Shortly after the exhibition, Patrick emailed us a hydraulic threaded cartridge valve with high parameter requirements. In particular, the durability of the hydraulic threaded cartridge valve should be more than 2 million times. All quality details should be compared with their local suppliers in Germany. The drawings attached to the email indicate the detailed data and working condition requirements. AAK is required to send 12 hydraulic threaded cartridge valve samples within 4 weeks. After analysis and comparison, AAK engineers found that this hydraulic threaded cartridge valve is not only durable for more than 2 million times, but also has high accuracy requirements. In particular, the internal leakage requirement of hydraulic threaded cartridge valve is 2drops / min, which is 60% higher than the international general standard. Although the requirements are high, we are still confident. 4 weeks later, AAK sent 12 hydraulic threaded cartridge valve samples. A month after the hydraulic threaded cartridge valve samples were sent, Patrick emailed that AAK did make him realize that it was different from other hydraulic valve manufacturers. At that time, he emailed to 4 Chinese hydraulic threaded cartridge valve manufacturers and a local manufacturer in Germany. Two of the 4 Chinese hydraulic valve manufacturers gave up directly. Only AAK and another hydraulic thread cartridge valve manufacturer confirmed to make samples. They tested and compared the sample parameters of the three factories. AAK's accuracy and durability are not only much higher than those of its Chinese counterparts, but also benchmarked with their local manufacturer in Germany. Although the quotation of AAK hydraulic threaded cartridge valve is much higher than that of its Chinese counterparts, it still has advantages over the hydraulic threaded cartridge valve purchased locally in Germany. Purchasing from AAK is the best embodiment of cost performance. AAK hydraulic threaded cartridge valve has three absolute advantages and has already surpassed its domestic counterparts. 1. AAK has a high-precision CNC machining center imported from Switzerland and various independent fixtures upgraded and refitted by itself, which eliminates human errors and ensures the first step of accuracy.
Walt placed an order for 1000 hydraulic threaded cartridge valves at one time last week, which surprised me. Three years ago, I met Walt from an American company at the Shanghai PTC exhibition. He communicated with us at our booth for more than half an hour. After the exhibition, Walt sent an email saying that his company happened to have a newly developed hydraulic equipment, which needs to use hydraulic threaded cartridge valves. He asked AAK to urgently provide 30 samples of hydraulic threaded cartridge valves according to his drawings. AAK sent out 30 hydraulic threaded cartridge valves after 25 days. After this, there was no inquiry for any hydraulic threaded cartridge valves from him. Half a year later, Walt sent a new test order of 40pcs for another new hydraulic threaded cartridge valve. Same as last time, there is no further news after delivery. In this way, we just received 2 test orders in about 2 years. I thought that there should be a mistake on the quantity of this large order of hydraulic threaded cartridge valve this time. After several rounds of emails, we know the story for this hydraulic threaded cartridge valve. Their company has only begun to purchase hydraulic valves from China in recent 3 years. For the hydraulic threaded cartridge valves purchased at the beginning, there are always complaints from customers after a period of time, such as leakage or jamming, insensitive opening and closing or serious wear and tear, etc. In the past 2 years, Walt also tried samples from more than 20 hydraulic valve manufacturers. The same problems still occur after each replacement. Only AAK hydraulic threaded cartridge valves have not received a complaint. Walt compared more than 20 suppliers for 2 years, and only AAK hydraulic threaded cartridge valves had no complaints. This time, he strongly suggested his owner that the future hydraulic threaded cartridge valves can only be purchased from AAK. His owner also wants to know why AAK can ensure that there are no complaints about the hydraulic threaded cartridge valves. AAK hydraulic valve not only has the CNC machining center imported from Switzerland, but also has its own upgraded and refitted independent fixtures, which eliminates man-made errors. At the same time, we have accurately controlled every detail of the processing, production, assembly, inspection and packaging of each hydraulic threaded cartridge valve, which has surpassed the vast majority of domestic peers. Firstly, AAK will divide the installed products into several assembly units according to the structure and process characteristics of the hydraulic valve, reduce the single parts entering the general assembly as much as possible, and ensure the reasonable assembly sequence and specified assembly accuracy of the hydraulic valve. All parts will be accurately measured, strictly inspected and tested before and after the general assembly of the hydraulic threaded cartridge valve.
Early last month, I saw an email from Mark, the purchasing manager of hydraulic system of Caterpillar, an old friend of ours. The subject of the email is "I need help from AAK, I believe". After reading the email about hydraulic threaded cartridge valve, I understood Mark's embarrassment. A small less-known excavator designed by them at the beginning of this year was not smooth in the commissioning process, the response of the excavation part was slow and the power was not enough. After testing, the technical department found that the measured value of the maximum overflow pressure was lower than the specified value, so it was determined that there was a problem with the hydraulic threaded cartridge valve. Mark communicated with the original hydraulic valve supplier. The supplier mentioned that the hydraulic threaded cartridge valve was sampled according to their company's drawings, and all parameter tests were up to standard. The supplier told the fact. He then could only patiently communicate with the design department to see how to modify the hydraulic threaded cartridge valve design, but the design Department said that there was a problem with the installation of the technical team. The company's design and technology departments prevaricate with each other and Mark are caught in the middle, which is very embarrassing and time is also being wasted. If the owner is angry one day, it is estimated that all 3 parties will be criticized. AAK HYDRAULIC VALVE has always been Mark's most trusted supplier of hydraulic valves. I asked Mark to send us the original design drawings of the hydraulic threaded cartridge valve and the working condition requirements of existing equipment, as well as the problems and data encountered in commissioning. 3 days later, we replied to Mark that we have a new design scheme, and we are 90% sure that we can make the hydraulic threaded cartridge valve that meet the equipment requirements, but it will take 2-3 weeks. On the 3rd day after receiving our sample of the hydraulic threaded cartridge valve, Mark happily informed us that the technical department tested AAK hydraulic threaded cartridge valve, the equipment commissioning was smooth, and the reaction and power of the excavation part were normal. The technical department said that the large goods of this hydraulic threaded cartridge valve can only come from AAK, and other hydraulic valve manufacturers are unreliable. Caterpillar designers are also curious about how AAK HYDRAULIC VALVE redesigns this hydraulic threaded cartridge valve? AAK engineering team tried 30 times to design, sampling and make adjustment to find a breakthrough. A sealing ring groove is arranged between the oil replenishment outlet and the oil replenishment inlet of the oil replenishment valve seat of the hydraulic threaded cartridge valve.
Integrated Hydraulic Threaded Cartridge Valve, AAK replaced 3 HydraForce Valves with 1, which is simplified and cost effective Esteban is from a Spanish hydraulic equipment manufacturing company. Some time ago, their company customized a hydraulic cylinder for a customer. The hydraulic check valve, relief valve and electromagnetic unloading valve in the system are all standard parts from HydraForce. The customer is basically satisfied, but the cylinder structure is not very satisfactory, and the price has no advantage. Their engineer said that only by integrating the functions of hydraulic check valve, relief valve and electromagnetic unloading valve, and replacing them with only one hydraulic screw-in threaded cartridge valve, would the structure be simple and the cost be reduced. Esteban inquired about more than 10 hydraulic threaded cartridge valve manufacturers, but no result for a week. Esteban was worried. After browsing AAK website on Google, Esteban found that AAK had many cases of solving customer problems, and sent an email asking: Can AAK customize the multi-function hydraulic threaded cartridge valve to make the cylinder compact and reduce costs? After communication, it was learned that Esteban needed AAK to customize the hydraulic threaded cartridge valve to replace the functions of the 3 valves in the system. According to the hydraulic schematic diagram provided by Esteban, AAK engineers basically had the idea. Esteban asked for samples after knowing it. After 50 days, AAK sent 10 samples of hydraulic threaded cartridge valves. 1 month later, Esteban informed us by email that the customer was satisfied with the new structure of the oil cylinder, and should promote it first, and let us wait for the batch order. AAK used an integrated multi-function hydraulic threaded cartridge valve to replace the 3 valves of the original system, specifically as follows: 1. The valve housing is provided with a connecting valve hole, a working port of the oil cylinder, and a hydraulic control port, an oil inlet port and an oil return port. A check valve spool is set in the valve hole to control the on-off of the oil inlet and the working port for oil feeding or unloading. In this way, the one-way control function is realized and the check valve of the original structure is replaced. 2. The control check valve spool is separated from the working port, and the hydraulic control valve spool for unloading the oil inlet and the working port is connected. At the same time, the connection between the valve hole and the relief valve spool of the oil return port can also be disconnected. In this way, the overflow function is realized and the relief valve of the original structure is replaced. 3. The relief valve spool is equipped with connecting valve hole, oil return port and damping hole. One end of the damping hole is equipped with a unloading valve spool to control the opening and closing of the damping hole and the oil return port,
The leakage of Hydraulic Cartridge Flow Control Valve caused by spring was solved by AAK from 3 points Adam, an old American hydraulic customer, sent AAK 3 emails consecutively on the same day last month, for the leakage of a hydraulic cartridge flow control valve. According to the picture he sent, the hydraulic cartridge flow control valve has a cut-off plate that is supported by a spring. Some customer complained that the hydraulic cartridge flow valve leaked without working. The original manufacturer of the hydraulic cartridge flow control valve cannot solve the problem in 3 months. Because the sales volume of this hydraulic cartridge flow control valve is very good, Adam wants it 100% no complaints. Through the pictures, it is difficult to trace the cause. I suggested Adam send us 3 samples of the original hydraulic cartridge flow control valves. After we received and checked the samples, we found that the leakage was more serious if we pressurized, but the tightness of the cut-off plate was no problem. We adjusted the spring, and the first pressurization did not leak, but after 3 times, the leakage occurred. It was basically judged that the spring has hidden danger. After the spring tension test, it was found that the spring is abnormal. 2 days later, we informed Adam of the hidden danger of the spring, and at the same time, we replaced the internal springs of the 3 hydraulic cartridge flow control valves with AAK springs, and returned the samples to him. 2 weeks later, Adam sent a PO for this hydraulic cartridge flow control valve, with a value of more than 30,000 dollars, and told us that the 3 returned samples were tested for 5 pressurizations, and no leakage was found, and the operating efficiency of the hydraulic system was also improved by nearly 10%. Adam privately ridiculed himself. He has been engaged in the hydraulic valve market for so many years, but still has to ask for help from AAK when there is a problem that he cannot solve. The main reason why AAK can effectively solve the leakage problem caused by springs, is to ensure the following 3 points: 1. We have our own spring source that has cooperated with us for 10 years, to avoid the phenomenon of unequal material between the sample and the production spring, and ensure the quality. 2. Equipped with spring tension and compression tester, reasonably select the spring with elastic coefficient within the standard range, to avoid leakage caused by elastic coefficient deformation. 3. A quality inspection department to ensure that the quality is qualified during assembly and prevent leakage. AAK hydraulic cartridge flow control valve, 3-step check on the spring, zero leakage, welcome to try!
AAK Optimized the Hydraulic Direct Acting Cartridge Relief Valve with 3 tricks, Gaylord gave up the original Indian manufacturer Gaylord comes from Holland and is an old customer of AAK hydraulic valve. Some time ago, he emailed me to ask if AAK could optimize a hydraulic direct acting cartridge relief valve. After communication, I learned that at the beginning of the year, they had an order for a hydraulic power unit for high-precision machine tools, which used a hydraulic direct acting cartridge relief valve. Gaylord chose an Indian hydraulic cartridge valve manufacturer to make samples, and the equipment debugging was not smooth. The hydraulic direct acting cartridge relief valve had unstable overflow liquid, forming a jet, especially under low pressure, the stability of the system was poor. Although the function test of the valve was normal, it was still necessary to optimize the hydraulic direct acting cartridge relief valve, but 2 weeks later, the original manufacturer still had no solution, and Gaylord contacted me. According to his hydraulic system schematic diagram and the drawing of the original hydraulic direct acting cartridge relief valve, AAK engineers found the hidden danger of the original structure. Gaylord sent the PO of the test order. After 50 days, AAK sent 10 samples of hydraulic direct acting cartridge relief valves. A month later, Gaylord sent us an email. The equipment was adjusted smoothly. Under low pressure, the system was stable. The customer was also satisfied with the prototype. His engineers also admired the brains of AAK technical team. AAK hydraulic direct acting cartridge relief valve has good stability under low pressure conditions. The key lies in its unique structure: 1. The valve spool, spring, plunger and pressure regulating knob are successively installed in the cavity of the hydraulic cartridge relief valve body. The valve spool contacts the valve seat under the elastic force of the spring, and relies on the elastic force of the spring and the back pressure of the overflow port to balance the hydraulic pressure generated by the oil inlet. 2. The original poppet valve spool is changed into an integral ball type valve spool, and an annular gasket is set between the ball valve spool and the spring. The ball valve spool can automatically adjust the axial angle relative to the centering bearing, which improves the stability of the valve and ensures the low pressure stability of the hydraulic system. 3. Before assembly, the standard steel ball is used to punch the runner port and gasket port that contact the steel ball. The original wire seal is changed to ring seal to improve the sealing performance, so as to ensure the reliable contact between the gasket and the steel ball and realize the stable overflow function. AAK hydraulic direct acting cartridge relief valve, is also stable in low pressure, you can also try a small order!
With 3 Tricks to Strengthen the Valve Spool, the service life of AAK Hydraulic Cartridge Directional Control Valve is twice that of its peers Blade is from Canada. He has been purchasing hydraulic components successfully for 3 years. Unexpectedly, a hydraulic cartridge directional control valve stumped him. In the second half of last year, a batch of their hydraulic logistics lifts were complained by customers, some of them were unable to work, probably because the hydraulic cartridge directional control valve leaked. After checking, it was found that the valve spool was deformed. The original manufacturer of the hydraulic cartridge directional control valves said that it had been shipped for 9 months, and some exceptions were inevitable. It is possible that the internal stress of the valve spool was not eliminated in time during the heat treatment process, resulting in deformation or cracking of the valve spool. However, there are more and more complaints later. Blade realized that the service life of the hydraulic cartridge directional control valves from the original cartridge valve manufacturer may be about 1 year. He had to find a new hydraulic cartridge directional control valve manufacturer with a service life of 2 years. A week has passed, and no one can guarantee a 2-year life span. Blade found AAK when browsing Google. He noticed that AAK was continuously supplying HydraForce, and left a message: Can AAK ensure that each hydraulic cartridge directional control valve spool is free of deformation or cracking within 2 years? I guess he encountered trouble in purchasing hydraulic cartridge directional control valves. After communication, I learned the above information. I replied that the life expectancy of 2 years should not be a big problem. Blade sent the drawing of the hydraulic cartridge directional control valve and asked for the lead time for 10 samples. After 45 days, AAK sent the samples of the hydraulic cartridge directional control valves, but there was no email from him after that. Last week, Blade suddenly sent an email, and it was a PO for 600 hydraulic cartridge directional control valves. It can be seen that the samples of AAK hydraulic cartridge directional control valve was approved by his customer. The valve spool is the key to long service life of this hydraulic cartridge directional control valve. 1. AAK select 20CrMo material to produce the valve spool. After quenching and tempering, the materials are more conducive to processing. Most hydraulic cartridge valve manufacturers ignore this action. 2. 0.25~0.35mm machining allowance shall be reserved for rough turning, then carburizing, quenching and high temperature tempering shall be carried out, and then the valve spool shall be subject to low temperature cold treatment. The surface hardness of such valve spool is above HRC63, and the residual austenite in the internal structure is eliminated.
For instantaneous unloading flow 10000lpm Hydraulic Cartridge Pressure Control Valve, Vadim only found AAK Vadim is from the Netherlands and has been engaged in procurement in a hydraulic equipment company for 3 years. Some time ago, they encountered a complaint about the hydraulic support they sold. The hydraulic column was bent. This has never happened before. The engineer was surprised. After field analysis, the problem was that the maximum unloading flow of the hydraulic cartridge pressure control valve was too small to realize rapid unloading, which affected the hydraulic column. The original manufacturer of the hydraulic cartridge pressure control valve tried to modify it once, but it was ineffective. Vadim contacted more than 10 cartridge valve manufacturers, but they couldn't make hydraulic cartridge pressure control valves with instantaneous unloading flow of 10000lpm. Vadim was worried. Vadim browsed AAK website on Google and clicked on the customer case and product introduction of hydraulic cartridge pressure control valves for many times, and left us a message: How to increase the maximum unloading flow of the hydraulic cartridge pressure control valve? My reply: there are many ways to improve it, and we need to make specific analysis. According to the video of bending of hydraulic column and the production drawing of hydraulic cartridge pressure control valve sent by him, after several discussions, AAK engineers have implemented the plan with 90% confidence. Vadim saw the hope and asked for AAK samples. After 50 days, AAK sent 20 samples of hydraulic cartridge pressure control valves. Last week, Vadim sent an email to express his thanks. It has been more than half a year since the hydraulic cartridge pressure control valves of AAK was installed. The customer has not reported that the hydraulic column is abnormal. AAK engineers improved the internal structure of the original hydraulic cartridge pressure control valve and ingeniously started from 3 points. Vadim said that their engineers also applauded and wanted to find opportunities to learn from each other. 1. The valve spool of the hydraulic cartridge pressure control valve adopts a two-stage stepped cylinder structure. When the high-pressure liquid of the system acts on the large diameter end and the small diameter end of the valve spool at the same time, the area difference between the two ends of the valve spool can greatly reduce the hydraulic pressure borne by the valve spool, so as to achieve the stability of the large flow unloading process. 2. On the cylinder wall in the middle of the front half valve body, 12 unloading holes are uniformly arranged along the circumference, which not only balance the force along the radial direction, but also make the valve spool flexible. At the same time, during the unloading process, it has the largest flow section to achieve super flow unloading, and its maximum instantaneous unloading flow can reach 10000lpm.
3 Advantages of AAK hydraulic cartridge relief valve, , a hydraulic customer from Bolivia, failed to purchase hydraulic cartridge relief valves from for the first time. has purchased hydraulic components from local hydraulic cartridge valve manufacturers in Bolivia for 3 years. He heard from his peers that the cost performance of purchasing from is better than that of Bolivian hydraulic valve manufacturers, so he began his overseas procurement trip. A hydraulic cartridge relief valve with rated pressure exceeding 30MPa, and the fit clearance between valve body and valve spool is required to be 0.006~0.01mm. successively tried samples with 3 hydraulic cartridge relief valve manufacturers in 70 days. The hydraulic cartridge relief valve samples had either internal and external leakage, blocked oil circuit, or even stuck. 3 times of proofing failed, which made helpless and even suspected that he was misled by his domestic peers. Richard noticed AAK on the B2B website and saw some tweets and customer cases to solve the problems of hydraulic cartridge valves, especially some big brands such as HydraForce and SUN Hydraulics, are also loyal customers of AAK for many years. He seemed to see hope and left a message to us: How much MPa can the rated pressure of the hydraulic cartridge relief valve with a clearance of 0.006~0.01mm between the valve body and the valve spool be? When I saw this message, I subconsciously felt that he had stumbled in the accuracy when purchasing this hydraulic cartridge relief valve, and he was inexperienced in choosing the hydraulic cartridge valve manufacturer. According to the problems of his hydraulic cartridge relief valve samples, AAK technical team determined that the problem was caused by burrs inside the hydraulic cartridge relief valve. However, the specific problem still depends on the sample analysis. I suggested Richard making samples directly to see the manufacturing quality of AAK hydraulic relief valves. Maybe that will change his view on China hydraulic cartridge valve manufacturers. After 30 days, AAK sent 10 samples of hydraulic cartridge relief valve. 6 months later, Richard emailed us that AAK hydraulic cartridge relief valves did not have the problems of "internal and external leakage, or blockage of the oil path or stagnation" that occurred in other hydraulic cartridge valve manufacturers, which also strengthened his confidence in purchasing from China hydraulic cartridge valve manufacturers. How to effectively avoid burrs of hydraulic cartridge relief valves? It is also a "thorn" that AAK has to remove since it was engaged in the R&D and manufacturing of hydraulic components. With 13 years of manufacturing experience, AAK can be sensitive to find problems and solve them. In the processing of hydraulic cartridge relief valves,
Hydraulic cartridge pressure control valve specially for manifold with off center cavity, AAK assisted Galeno to participate in the exhibition successfully Galeno, from Spain, has cooperated with AAK for 2 years and tried several non-standard customized hydraulic cartridge pressure control valves. At the beginning of this year, they developed a hydraulic windlass to be promoted in the exhibition. They need a hydraulic cartridge pressure control valve for the hydraulic system of the windlass. Galeno got samples from local manufacturer of hydraulic cartridge pressure control valves. After the commissioning, the pressure control of the equipment is unstable. The engineer judged that the cavity of the hydraulic manifold was off center, resulting in unstable pressure control of the hydraulic cartridge pressure control valve after being screwed in. The hydraulic manifold manufacturer needed 2 months to re sample, but the exhibition was less than 50 days, Galeno was worried. Galeno tried to find a new hydraulic manifold manufacturer. When I received his inquiry for hydraulic manifold, I was a bit surprise. After communication, I learned that he encountered unstable pressure control of hydraulic cartridge pressure control valve. I told him that under similar circumstances, it is not necessary to re produce the hydraulic manifold. 1 year ago, AAK developed a specially designed hydraulic cartridge pressure control valve, which was specially designed to coordinate with the off center cavity of the hydraulic manifold. Galeno compared the technical parameters of the AAK hydraulic cartridge pressure control valve and it basically matched the hydraulic system of their hydraulic windlass. 2 weeks after the sample was sent, Galeno informed that the installation of AAK hydraulic cartridge pressure control valve to the equipment was smooth, and the machine test was normal. The prototype was already on the way to the exhibition. His boss was very satisfied with this urgent solution. I told him that the unique design of AAK hydraulic cartridge pressure control valve was beyond the imagination of most hydraulic valve manufacturers. We got inspiration from an old customer. The customer purchased the hydraulic manifold block and the hydraulic cartridge pressure control valve from 2 different factories. After the installation was abnormal, the two factories passed the buck. At that time, we imagined whether it was possible to let the hydraulic cartridge pressure control valve match the hydraulic manifold block with off center cavity, or vice versa. AAK technical team has figured out that the middle thread can be used in the hydraulic cartridge pressure control valve, that is, the floating structure. The connection area of the port can be optimized, and the center of the thread position can be positioned to maximize the flow capacity and minimize the eccentric influence of the hydraulic manifold block cavity.
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.
When back from the Spring Festival, we received a reorder for 120 hydraulic threaded cartridge valves from Echerle company. Dean has been engaged in hydraulic parts purchasing in Echerle company for many years, and has been doing very well. The boss also trusts him. At the beginning of last year, the company developed a new hydraulic power unit, which has high requirements for the accuracy of the hydraulic threaded cartridge valve to be used. Because of the high accuracy requirement, the original hydraulic threaded cartridge valve manufacturer said that he was not able to achieve it. Dean used a new hydraulic threaded cartridge valve manufacturer finally. After their hydraulic power unit equipment has been sold for just less than 3 months, the customer complained about insufficient power supply. Their engineers believe that the hydraulic threaded cartridge valve was stuck and caused the problem. However, the hydraulic threaded cartridge valve manufacturer believes that it is caused by the uncleanness of hydraulic oil, but the engineer detected that the hydraulic oil is normal. The owner was not satisfied with such a hydraulic threaded cartridge valve manufacturer and asked dean to find a new hydraulic valve manufacturer and replenish goods as soon as possible. Dean left a message on AAK website and asked, what are the reasons for the stuck of the hydraulic threaded cartridge valve? We estimated that he had encountered the complaint about the stuck of hydraulic threaded cartridge valve. After communication, we learned that he was cheated by the new hydraulic valve manufacturer. According to the hydraulic threaded cartridge valve drawings sent by him, the accuracy requirements are high, especially the dimensional accuracy requirement of the valve hole is IT7 ~ 4. Among the hydraulic valve manufacturers in Ningbo, there may be no more than 3 factories that are able to meet it. We suggested Dean send the abnormal hydraulic threaded cartridge valve to us. After receiving and disassembling the sample, it was found that the cylindricity and coaxiality of the valve hole of the hydraulic threaded cartridge valve had errors, that is, the accuracy was not enough, the pressure in the matching gap between the valve hole and the valve spool is not balanced, resulting in the limited flexibility and easy stagnation of the valve spool in the valve body. Dean asked whether we can produce hydraulic threaded cartridge valves meeting valve hole accuracy requirements of IT7 ~ 4? We told Dean that for the hydraulic threaded cartridge valve, the valve hole accuracy is the key point and also the difficulty of quality control process. It directly affects the working performance, service life and stability of the hydraulic threaded cartridge valve. General hydraulic valve manufacturers surrender to this accuracy. AAK has a precision honing machine imported from the United States, which guarantees the finishing of the valve hole of the hydraulic thread cartridg
