Mechanical Hardware

James is the purchasing director of one of our American Hydraulic customers. They are the top 3 in the construction machinery industry in the United States, and their market share is increasing year by year. James is also doing well. In May last year, the MP550-HDD-18 cement delivery pump supplied by their company to a local construction company often failed to reach the rated value for the system pressure during use, and the oil pressure of the hydraulic system can only reach 12MPa. After disassembling the hydraulic system, the engineer found that the joint surface between the conical pilot valve body and the valve seat of the hydraulic relief valve was grinded out with a circle of uneven groove line with a depth of about 1mm for unknown reason. The hydraulic oil flowed back to the oil tank from this groove, and the hydraulic relief valve had no sealing function. The customer wanted James’s company to replace the hydraulic relief valve of the same model within 2-3 weeks. If they miss the time, the project progress will be affected. When James purchased this hydraulic relief valve from the original German hydraulic valve supplier again, he was told that they produce this hydraulic relief valve no longer. If he wanted to re-produce it, it would take 35 days and modify the production process and auxiliary equipment, which would require an additional cost of more than 30,000 US dollars. This style of hydraulic relief valve was just purchased by James 2 years ago. When he reported this situation to the president, the president didn't understand why he didn't have an alternative hydraulic valve manufacturer. James realized that the president was unhappy. When he sent the anatomical drawing of this hydraulic relief valve to more than 20 hydraulic valve manufacturers, almost all said that they have no hydraulic relief valve with such structure, James was a little flustered. In March this year, James just purchased a batch of high-precision hydraulic relief valves from AAK. He wanted to see if AAK had a way to solve this thorny problem. When he sent us the pictures of this hydraulic relief valve made in Germany, we asked him to send us the whole complete technical drawings, as well as the use environment and working conditions. The pressure of this hydraulic relief valve is 31.5Mpa and the flow is 200L / min, which is basically consistent with the parameters of the hydraulic relief valve we supplied to them before. However, there is a fatal problem that the internal structure, appearance, shape and size are inconsistent with those of the hydraulic relief valve they purchased in Germany, so it is difficult to install on the transmission line. After learning that the only way is to meet the requirements of the transmission line at the construction site in the United States, AAK engineers designed a new hydraulic system with two pipe joints and an oil plug according to the diameter and outlet size of the overflow valve of the cement pump and the working pressure, and sent the design of the new hydraulic relief valve to James at the first time. Their engineers were surprised by this idea, and asked us to make a sample quickly. We produced 2 samples of the new hydraulic relief valves in 10 days. After they received the samples, the hydraulic relief valve was installed on the cement pump. After the startup test, the whole conveying system can be used normally. Their customers were very satisfied with the speed of problem solving from James' company this time, and promised that James’s company would be the first choice for the purchase of all hydraulic system equipment, which made his president very happy. After this waving, James said that the president valued him more and more. AAK hydraulic valve has high precision and creativity beyond peers. We guarantee the quality for 3 years of service life. If you have any problems with hydraulic valve, please contact us for a small try. https://www.aakindustry.com/info-detail/hy , draulic-relief-valve-aak111

Akyol is from Turkey, a very competitive market for hydraulic flow control valves. Akyol was very upset about a batch of hydraulic flow control valves purchased from Ningbo China in the second half of last year. The customer complained that there were debris and impurities in the space between the hydraulic flow control valve body and valve spool, causing the hydraulic flow control valve to intermittently jam. The manufacturer of the original hydraulic flow control valve thought that the proportion is not high and they are willing to replenish 10%. However, there were more and more complaints later. Akyol realized that the manufacturing quality of the original hydraulic flow control valve manufacturer is unstable, and regret that they chose an unreliable manufacturer for their cheap price. AAK also received Akyol's inquiry earlier. She initially agreed with AAK's quotation. However, 2 weeks later, we were advised that he found another hydraulic flow control valve manufacturer in Ningbo with more competitive price, so I did not follow up. It wasn't until March this year that I received her email re-confirming the price of the hydraulic flow control valve again, I learned that she had encountered the problem of impurities in the hydraulic flow control valve she purchased from other hydraulic valve manufacturer in Ningbo China. Akyol needs me to ship 120 pcs as soon as possible to solve her urgent needs. This is a model equivalent to HydraForce standard part. We still have stock in our warehouse, and shipped them in 1 week. 2 months later, yesterday, we received a re-order of 600 pcs for the same hydraulic flow control valve. I believe that after going through this round trip, Akyol will continue to place orders with similar hydraulic flow control valves at AAK. The hydraulic flow control valve is most afraid of unstable quality, such as impurities, stuck, unstable flow rate, or having a service life of less than 6 months. AAK controls it from 3 aspects. 1.When precision machining components, AAK has a high-precision honing machine, which not only ensures accuracy but also produces limited impurities. 2.In terms of inspection, coordinate measuring instruments and high-precision projectors are used to check and eliminate hidden problems before assembly. 3.Before shipment, each hydraulic flow control valve needs to go through AAK updated test bench for flow and pressure testing. If there are any abnormalities, it will automatically remind and eliminate human errors, while the vast majority of hydraulic flow control valve manufacturers just rely on the experience of testing personnel to make judgments. AAK hydraulic flow control valve, no impurities, you can also give it a try! AAK HYDRAULIC VALVES (606) 2023-06-15 https://www.aakindustry.com/info , -detail/hydraulic-flow-control-valves-aak606

AAK uses Rockwell hardness tester to check the hardness of each part of the hydraulic valve, so that the hardness of each heat-treated alloy steel is "exposed". Nearly 90% of domestic hydraulic valve manufacturers are not equipped with this Rockwell hardness tester with the highest accuracy. An Italian hydraulic valve customer, who disliked the expensive price of AAK, purchased the high hardness hydraulic directional valves from another hydraulic valve manufacturer but suffered loss from poor quality, he finally returned to AAK to place an order. Because of the common problem of unstable heat treatment in the industry, the hardness test of hydraulic valves with high requirements for stability is very important. Most hydraulic valve manufacturers can't grasp the details of hardness testing. They don't have high-precision hardness testing instruments, just checking the hardness by experience. They often put on-line production without knowing the hardness of materials is not up to standard due to human errors. Harvey is a hydraulic valve purchaser from Italy. In particular, there are many inquiries for hydraulic directional valves, and the hardness requirements for hydraulic directional valves are particularly high, with few requirements below 65HRC. Since last year, he has sent AAK inquiries for hydraulic directional valves every 2 weeks, all of which are 65-68HRC hardness indicators. Strangely, there were 10 inquiries for hydraulic directional valve, but no order was placed with AAK. Every time we followed, the reply we almost received was "the price is too high and will not be considered for the time being". We realized that this is not our customer. In June this year, Harvey sent an inquiry for the hydraulic directional valve with 68HRC hardness index, which is very similar to the 68HRC hydraulic directional valve inquired last year. We didn't quote the same day and intended to give up. The next day, he emailed again to ask whether his inquiry had been received. We replied that the AAK price doesn't meet your goal. We won't make an offer for the time being. Let's make friends. Harvey probably realized that AAK didn't want to waste time, he told us the truth frankly. There was a problem with the 68HRC hardness hydraulic directional valve he purchased from another hydraulic valve manufacturer. Strangely, the thickness measured in the shipping inspection link was up to standard. After the customer received the shipments of hydraulic directional valve, there were continuous complaints, all of which were due to the instability of the hydraulic system caused by unqualified hardness. From his description, I felt that there was something wrong with the testing instrument and asked him to send samples to us for testing. He was surprised when he learned from the other hydraulic valve manufacturer that there was no test report for 68HRC hardness. Before placing the order, Harvey's colleague visited the hydraulic valve manufacturer, who has its own heat treatment processing plant, and the heat treatment testing link is also equipped with a Leeb hardness tester to check the hardness. The price of their hydraulic directional valve was 6% cheaper than AAK HYDRAULIC VALVE, so order was placed with this hydraulic valve manufacturer. Harvey was curious about how we detected that these hydraulic directional valves did not have a hardness of 68HRC. AAK has been engaged in the hydraulic valve industry for so many years, wholeheartedly pursuing product quality and checking step by step from material selection. In terms of hardness index, it not only has its own exclusive heat treatment plant, but also has its own exclusive quenching and tempering heat treatment process. Through the combination of quenching and tempering at different temperatures, the hardness of materials can be greatly improved. At the same time, the testing equipment is equipped with Rockwell hardness tester with the highest accuracy in China. The hardness testing range is HRC 20 ~ 70. As long as the hardness requirement is within this range, the test error will not exceed +/- 0.1HRC, while the detection range of Leeb hardness tester used by most hydraulic valve manufacturers is HRC 20.4-67.1. If the hardness exceeds this range, the test data is distorted. In high precision, we benchmarked Eaton Vickers directional hydraulic valve. Harvey suddenly understood and hoped that we could maintain the original quotation for this inquiry for the hydraulic directional valve, and asked us to arrange samples of the hydraulic directional valve within 10 days and send them to his customers for testing. 3 days later, Harvey sent the order for the hydraulic directional valve. He said that he recognized the product hardness of AAK hydraulic valve very much, and would send the inquiry of 68HRC hydraulic directional valve to AAK only in the future. AAK HYDRAULIC VALVE has a rigid heart never compromising on quality and high- precision equipment. You can buy at ease, use at ease, worthy of a try. https://www.aakindustry.com/info-detail/hy , draulic-directional-valve-aak110

Arda, from Turkey, has been purchasing hydraulic cartridge valves from China for 2 years smoothly. However, Arda has encountered difficulties in a hydraulic directional control cartridge valve. Last August, their company developed a mining hydraulic support, which requires hydraulic directional control cartridge valve. Arda purchased it from an old hydraulic cartridge valve manufacturer. The system impact was large during the equipment commissioning. After the engineer optimized the hydraulic system, the hydraulic directional control cartridge valve was required to have the secondary unloading function. The original manufacturer said that this hydraulic directional control cartridge valve is equivalent to a standard part of HydraForce, and the HydraForce original one has this function neither. Arda contacted other cartridge valve manufacturers, but no result. Arda left a message on AAK website: Does AAK hydraulic directional control cartridge valve have the secondary unloading function? Similar problem was solved by AAK for a Russian customer last year, and we sent Arda the internal structure diagram of the similar valve. Arda saw the hope and asked AAK to make sample according to his drawing of the hydraulic directional control cartridge valve. After 40 days, AAK sent 18 samples of hydraulic directional control cartridge valves. 4 weeks after the samples of the hydraulic directional control cartridge valve were sent, Arda informed us that their engineer was satisfied with AAK hydraulic directional control cartridge valve, especially the secondary unloading function, had solved their system impact well and the hydraulic support was stable. AAK hydraulic directional control cartridge valve has two-stage unloading function, which divides the high-pressure liquid energy from the original release into two releases, and the sealing is skilled. Such hydraulic directional control cartridge valve has 3 main selling points: small pressure impact, small leakage and good sealing. The biggest advantage is that its service life is twice that of the original cartridge valve manufacturer. 1. AAK hydraulic directional control cartridge valve is equipped with the first valve spool and the second valve spool. The first stage unloading is the second valve spool is opened, and the first valve spool is not opened, which can reduce the hydraulic impact. The second stage unloading is the first valve spool is fully opened, which can significantly expand the liquid flow channel, so that the oil pressure is reduced. 2. The valve body of the hydraulic directional control cartridge valve is provided with a liquid inlet and a liquid outlet. The liquid inlet is connected with the liquid storage chamber of the valve spool assembly through the first liquid guide hole. The liquid outlet is internally connected with the first valve spool of the valve spool assembly through the second liquid guide hole on the valve sleeve. The end of the valve sleeve is provided with a second damping hole, which connects the first valve spool with the connecting hole on the valve body. 3. The valve body and valve spool assembly are sealed by multiple groups, and the valve spool and valve seat are sealed by cone matching. When the hydraulic directional control cartridge valve is supplying liquid in the forward direction, the first valve spool is pushed away from the first valve seat to establish a forward liquid flow channel. When the liquid supply is stopped, the first valve spool is reset to block the liquid storage chamber and the second liquid guide hole, thus realizing the sealing function. AAK hydraulic directional control cartridge valve has 3 main selling points and 1 major benefit. You can also try it! https://www.aakindustry.com/info-detail , /directional-control-cartridge-valves- aak518

Today, we’d like to introduce a solenoid cartridge valve equivalent to HydraForce standard part SV10-20. It is a solenoid-operated, 2-way, normally closed, poppet-type, screw in hydraulic cartridge valve, with standard (sv10-20) and manual override (mo) options. This valve intended as a blocking or load holding device for low flow circuits having pull-only manual override requirements for handles or cable linkage. The features of this solenoid cartridge valve: Continuous-duty rated coil. Hardened seat for long life and low leakage. Optional coil voltages and terminations. Efficient wet-armature construction. Cartridges are voltage interchangeable. Unitized, molded coil design. Manual override option. Optional waterproof E-Coils rated up to IP69K. Industry common cavity. Position sensor option. The function of this solenoid proportional valve: When de-energized, the SV10-20X acts as a check valve, allowing flow from port 1 to port 2, while blocking flow from port 2 to port 1. When energized, the valves poppet lifts to open the port 2 to port 1 flow path, while flow from port 1 to port 2 is severely restricted. AAK has received 6 inquiries for this solenoid proportional valve within only 2 months, from August to October 2023, with 3 customers placed trial orders. This hydraulic solenoid cartridge valve is not only widely used, but also has multiple functions, especially its good performance. Although many hydraulic cartridge valve manufacturers in China can produce this hydraulic solenoid cartridge valve, and its functions may also be compared to HydraForce standard part SV10-20, their solenoid cartridge valve performance may be a problem. AAK hydraulic cartridge solenoid cartridge valve 2 advantages: 1. Internal leakage: 3 drops/min, benchmarking against HydraForce 2. Its service life is 2 times that of its peers Technical parameters of AAK E-SV10-20 Hydraulic Solenoid Cartridge Valve: Max. Operating Pressure: 207 bar (3000 psi) Flow: See PRESSURE DROP VS. FLOW graph Internal Leakage: 3 drops/min max. at 207 bar (3000 psi) Cavity: 10-2  AAK E-SV10-20 solenoid cartridge valve, benchmarking HydraForce, within 2 months, received 6 inquiries, and 3 customer trial orders. You can also try it out. AAK HYDRAULIC VALVES (714) 2023-11-13 https://www.aakindustry.com/info , -detail/solenoid-cartridge-valves-aak714

Some time ago, Steven, from a Hydraulic Valve Company in UK, fell in a batch of hydraulic directional valves purchased in Ningbo. There had some email communication between AAK HYDRAULIC VALVE and Steven, but maybe the fate has not yet arrived, we did not cooperate until last month this year. Steven regained his confidence because he had suffered a waterloo and got back a key game here in AAK. At the beginning of this year, a batch of hydraulic directional valves purchased by Steven in Ningbo were stuck and failed during the test run, resulting in the failure of the whole batch of equipment to start up and run. His customer asked UK company to solve it within 30 days, otherwise there will be a big claim. Steven informed the original hydraulic valve manufacturer of these conditions, but the manufacturer prevaricated that it was a problem caused during the assembly process and had no direct relationship with them. Steven also consulted other hydraulic valve manufacturers. They either replied that the hydraulic valve was not produced by them and could not give the corresponding strategy, or there was no reply. Steven received serious rebuff here and there, and feel stressed. When Steven contacted AAK HYDRAULIC VALVE, we were willing to cooperate with him to solve this problem because we felt his trust in AAK HYDRAULIC VALVE. Through his email description, we were still not sure what the problem is, and asked him to send us samples. After AAK HYDRAULIC VALVE received the hydraulic directional valve samples from Steven, we felt that the relative sliding between the middle valve column and the valve body was not smooth. When the whole hydraulic directional valve is disassembled, there are slight scratches on the column surface, the valve body hole has a negative tolerance, and the valve body column hole has plastic distortion. Further microscopic examination showed that the surface of the material was etched badly. It is certain that the original hydraulic valve manufacturer has problems in material selection and heat treatment of alloy steel. Then we informed Steven of the result in a report and attached our suggestions for this style of hydraulic directional valve. After receiving the report, Steven seemed to see hope and asked us to make 5 hydraulic directional valve samples for his customer to run successfully first. After knowing the working conditions of this hydraulic directional valve, we adjusted the material selection of alloy steel, and increased the overall hardness of the hydraulic directional valve by 30% on the original basis. 1 week after Steven received the samples, he informed AAK HYDRAULIC VALVE by e- mail that the hydraulic directional valve samples made by AAK were started up smoothly as soon as they were tested on the machine. When the new delivery date and order quantity were confirmed by his customers, he was finally relieved. At the same time, he wanted to know how AAK would produce each hydraulic directional valve of the same quality as these samples in mass production. In terms of material selection, according to the working conditions of hydraulic valve, AAK HYDRAULIC VALVE set the material composition requirements with computer program, and then use metallographic sample for comparative analysis to detect the selected alloy steel. For the heat treatment of alloy steel, the same batch of steel shall be heat treated at the same time, without splitting batch or section. In terms of quenching and carburizing, the carburizing gas composition of alloy steel is changed according to the aging temperature and holding time of the process, and the carburized alloy steel is controlled not to retain excessive austenite during heat treatment, so as to ensure the stability of the whole alloy steel. AAK can achieve the aging temperature of 420 ℃ and thermal insulation of more than 10h. Basically, more than 95% of the hydraulic valve manufacturers can not meet this process index. After Steven got AAK's reply, he finally put down the heart that was uneasy for more than 20 days. The owner appreciated that he solved the difficulty on the hydraulic directional valve order within the time specified by the customer, and gave him a week's holiday to relax. AAK HYDRAULIC VALVE factory is the first choice for hydraulic directional valve. Actually, its quality has been recognized by Hydra Force, it is reassuring to use it. You can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-directional-valve-aak109

Some time ago, I heard or saw a few stories. Today, I want to share my experience of AAK hydraulic manifolds. The story of a peer. 2 years ago, there was a bidding under the framework of the Belt and Road, involving a bidding of more than 1 million dollars for hydraulic manifolds. This hydraulic manifold is very conventional, which is equivalent to standard parts. Because the price is too low, AAK hydraulic manifold gave up directly. A hydraulic manifold manufacturer in Ningbo received about 1/3 of the orders. After the hydraulic manifolds were shipped to abroad, there was a quality problem. The manufacturer knew that the whole batch of hydraulic manifolds was completed by several factories, so he assumed that it was not produced by him. The story of a famous person. Yang Lan and her husband Wu Zheng, a glamorous couple, attended a private royal banquet hosted by Prince Charles of England a few years ago, and promised to donate 1 million pounds. But after the banquet, they replaced this one million pounds with something. Prince Charles said that he had never seen such a shameless person. The story of a famous enterprise. In November 2018, Xiaomi Company launched a promotion campaign of "1 pound rush to buy Xiaomi 8" in order to expand the British market. However, at the time of rush purchase, the screen always showed "robbed" when the rush purchase button was pressed. No one can buy the Xiaomi 8 mobile phone for 1 pound. Maybe most people think they are slow, they can't prove each other. However, in the UK, keyboard warrior cracked the code of the flash buying website. He was surprised to find that no matter how fast you snap up, you are doomed to fail to snap up. The above 3 stories, no matter they are manufacturers, celebrities or famous enterprises, are ugly and derived from cleverness. Many times, we have been numb by such behaviors. Now those engaged in international business, who are used to cheating at home, will also bring this bad habit abroad, thinking that they are smart enough to bring big profits. That would be a wrong calculation. The behaviors derived from these cleverness are the manifestation of immorality and "evil". Why is a person evil? They are usually obsessed with reaching their goals without a bottom line. He has set goals, such as not taking responsibility, earning fame, making money, etc. These goals will lock him in a way. Since he is on the same road, he will sooner or later meet people who have no bottom line and are worse than him. He has no place to hide, then he will be unlucky.   AAK hydraulic manifolds, each product, no matter the hydraulic cartridge valve, or valve block, or hydraulic manifold, carries the AAK marking and manufacture date. AAK disdains the shirking of the above peer. Whether as an enterprise or an individual, we should be good. Goodness has no specific direction, no matter to customers, suppliers, employees or friends. If you release goodwill without direction, you may get rewards from all directions. Those who can succeed depend on themselves, and those who are good depend on God. I think that's what I mean. God does not refer to God or immortals, but refers to the uncertainty of things to rely on. Good and evil are not two ends of a line, but one is narrow and one is extremely broad.  AAK hydraulic manifolds, relying on trust, do good deeds and make friends. https://www.aakindustry.com/info-d , etail/hydraulic-manifolds-aak444

The valve spool hardness of AAK hydraulic flow valves reached 65HRC, the German customer Felix was impressed after receiving the first batch of shipments. Last week, he placed a reorder for 9,600 hydraulic flow valves, with a total value of more than 60,000 US dollars, and regarded AAK as his preferred supplier for hydraulic valve purchasing in China. In the hydraulic valve industry, more and more hydraulic valve manufacturers focus on homogeneous hydraulic valves, resulting in a decline in the level of hydraulic valve material selection and material reprocessing technology. Many hydraulic valve manufacturers think that their valve spool hardness meets the standard, but problems come out when they make samples or run production. The reason why most of hydraulic valve manufacturers can not solve the hardness problem well, mainly is: 1) without professional and systematic material knowledge, don't know how to choose the most suitable alloy steel material. 2) In the heat treatment of materials, most of them are led by the processing plants, mainly because the heat treatment is outward processing, and 20% of the outward processing is to change a place with one shot, and the hardness can not be guaranteed at all. Before the first cooperation with AAK, Felix consulted no less than 30 hydraulic valve manufacturers for the hydraulic flow valve with 65HRC valve spool hardness within 1 month. Only 2 said that 58HRC was the limit they can achieve. As for the other hydraulic valve manufacturers, no any feedback at all. Felix was extremely disappointed. When browsing the B2B website, Felix accidentally encountered an article about AAK HYDRAULIC VALVE. The article mentioned that 30 factories could not make the valve spool with a hardness of 65HRC, but AAK HYDRAULIC VALVE had already achieved in mass production, which made him curious about how the AAK HYDRAULIC VALVE can be different. Felix learned that AAK has its own set of SOP for the selection of valve spool materials. Unlike the other hydraulic valve manufacturers, who use one material for nearly all hydraulic valves. AAK will select the most suitable steel according to the working scene of hydraulic valve, the medium used and the hydraulic parameters of customers, combined with the wear resistance, linear expansion coefficient and deformation of different steel, such as Cr12MoV, 12CrNi3A 18crniwa, GCr15 and other high-grade tool steels. More importantly, AAK HYDRAULIC VALVE has its own heat treatment plant, which can adopt different heat treatment methods in quenching, carburizing and nitriding according to different contents of steel. For example, pretreatment, quenching, cold treatment, tempering, aging, fine processing and other secondary aging, the aging temperature and holding time of these processes are the key. AAK can achieve the aging temperature of 420 degrees, holding for more than 10h, and also obtain the hardness of 65HRC or above. It is difficult for other hydraulic valve manufacturers to have this process flow or operation technology. Felix knows very well that if the valve spool wants to reach the hardness index of 65HRC, the hydraulic valve manufacturer must solve the above two key points at the same time, and AAK HYDRAULIC VALVE is what he thinks. Felix sent us the design drawings of hydraulic flow valves with a try attitude. During sampling period, he asked us to adjust the parameters and proofing twice. Finally, he only confirmed the small order of 200 hydraulic flow valves. One month after receiving the shipments, Felix emailed us that his customers were very satisfied with AAAK valve spools, and each valve spool was stable at the hardness index of 65HRC. From the delivery of the first batch of hydraulic flow valves to now, it has been only more than 3 months. We did not expect that the quantity of the repeat order for the hydraulic flow valves has increased by 5 times, which is undoubtedly the best recognition of AAK hydraulic quality. AAK hydraulic valve has advantages and promises. Also, AAK hydraulic valve has a service life longer than over 90% of its peers. If you need it, please give it a try. https://www.aakindustry.com/info-detai , l/hydraulic-flow-concrol-valve-aak108

When I arrived at the office yesterday morning, an international parcel from Turkey arrived. It was sent by Colin. This guy didn't inform us in advance when he sent samples every time. I opened the package and found two hydraulic directional control valves, one complete and the other dissected. This is not the hydraulic directional control valve we shipped. After he goes to work, I will ask Colin about the situation. After communication in the afternoon, it was learned that their hydraulic hammer was complained about by users after in use for about 8 months. The valve spool of the hydraulic directional control valve was worn and there was a leak, which caused abnormal function of the hammer. The manufacturer of this hydraulic directional control valve stated that based on the working pressure and frequency, it is normal that the service life of the valve spool is about 8 months. Colin can accept the explanation from the original hydraulic directional control valve manufacturer, but he wants a valve spool with a service life of more than 1 year, so he sent AAK the samples of the hydraulic directional control valves to check the possibility. After knowing the specific working conditions, as well as the frequency of use of hydraulic crushing hammers, combined with the valve spool materials from the original manufacturer and processing accuracy, our engineer agreed that a service life of 8 months is indeed normal. Colin quickly understood what we meant, and immediately asked, what material will AAK use to produce hydraulic directional control valve spool? Can the service life of the valve spool be more than 1 year? I appreciate his quick response and responded with a smile: as long as the material selection and processing of the valve spool are in place, the service life of the hydraulic directional control valve spool will be worry free for more than 1 year. We have a program for this hydraulic directional control valve, and we only need to customize the valve spool with attention to detail to meet Colin's requirements. Within 25 days, AAK delivered the test order for 80 hydraulic directional control valves. Colin comes to AAK every time he has difficulties, and has never been disappointed. Of course, he has also purchased many batches of other hydraulic directional control valves from AAK This hydraulic directional control valve, AAK uses silicon nitride (Si3N4) ceramic ball valve spool, replacing the steel ball valve spool of the original hydraulic directional control valve manufacturer. In terms of parameter comparison, ceramic ball valve spool is superior to steel ball valve spool, but it is difficult to process and have high costs. Most hydraulic directional control valve manufacturers do not choose ceramic ball valve spools. The hardness of the ceramic ball valve spool is twice that of the steel ball spool, and it is wear-resistant with a small coefficient of friction. Its coefficient of thermal expansion is at least 30% lower than that of steel ball, which makes it more durable, even under high pressure and high frequency conditions, it is also safe. The corrosion-resistant, wear-resistant, and durable silicon nitride (Si3N4) ceramic ball valve spool is the most suitable for this hydraulic directional control valve. Although the cost of the valve spool is more than 3 times higher, AAK would rather spend more costs and reduce profits to ensure the service life of the hydraulic directional control valve. The customer has no complaint, in fact, AAK has also made a profit, because there are more re- orders. AAK hydraulic directional control valve, valve spool is corrosion resistant, wear resistant, and durable. You can also give it a try! AAK HYDRAULIC VALVES (605) 2023-06-13 https://www.aakindustry.com/info , -detail/hydraulic-directional-control-valves- a , ak605

Bekov is from a Russian hydraulic equipment company. Most of the hydraulic manifolds in the past 3 years were purchased from Ningbo and went smoothly. A batch of hydraulic manifolds purchased last time stumped him due to the precision of valve block holes. At the beginning of the year, their customer customized a hydraulic power unit. From the perspective of hydraulic manifold alone, it was not difficult, but the requirements for the accuracy of the valve block bore diameter were high. He chose a hydraulic manifold manufacturer in Ningbo who had cooperated for 3 years to place the order. He thought that the PO was confirmed by the supplier and his work was completed, but from the start of the sample, trouble came. After 50 days, the hydraulic manifold manufacturer advised that he could not achieve the accuracy of the valve block aperture. After the processing of 10 valve blocks, only 2 of them were qualified, and 80% of them were scrapped, so he had to give up. The supplier seems to be relieved, but it is less than 3 months from the customer's delivery date, and the hydraulic manifold supplier has not been determined yet. A week later, Bekov contacted more than 10 hydraulic manifold manufacturers, but none of them were confident to accept the order. Bekov was extremely anxious. Last month, I received an email from my old Russian customer Sumarokov: Aperture φ 10.3mm, hole depth 90.5mm, coaxiality requirement: φ 0.025mm, cylindricity requirement is φ 0.02mm, surface roughness Ra value is 0.8 μm, these precision requirements should not be difficult for AAK, right? I was a little confused. After communication, I learned that Bekov, a friend of Sumarokov, faced the problem of aperture accuracy when purchasing hydraulic manifolds. I replied to Sumarokov, with your trust, I will solve the problem as quickly as possible to ensure that Bekov is at ease. According to the series of drawings of hydraulic manifold from Bekov, besides the aperture accuracy, all the others are conventional parts. However, AAK encountered this aperture precision in processing valve blocks 3 years ago, so now it is fine for AAK. After 45 days, the hydraulic manifold sample is sent out. The day before yesterday, Bekov sent an email. The accuracy of every hole diameter processed by AAK was approved by their engineer. AAK hydraulic manifold was installed on their hydraulic power unit, and the equipment was running normally, just waiting for the purchase quantity of their customer. AAK hydraulic manifold valve hole precision is ahead of its peers, which originates from 3 points: 1. Material selection control: before processing, ensure that the material is free of casting defects and the blank allowance is uniform. Optimize the processing and cutting parameters according to the accuracy. 2. Equipment selection: Mikron machining center imported from Switzerland can ensure that the coaxiality of fixture and equipment rotation and cutter bar is controlled within 0.01mm, and the coaxiality of precision valve hole is controlled within φ 0.025mm. 3. Process optimization: from drilling, reaming, rough reaming, fine reaming, reaming and extruding without edge, 5 links. The increase in outer diameter of each link shall be controlled at 0.02 mm, and kerosene cooling shall be adopted. It replaces the traditional process of "drilling, reaming, countersinking, reaming and grinding", and avoids the expansion of orifice and instability of aperture. AAK hydraulic manifold, not only precision, you can also try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-manifolds-aak386

Recently, hydraulic manifold manufacturer AAK released an article titled " the “blame game” AAK encountered during a visit accompanying Isaac to a hydraulic manifold manufacturer”. Someone left a message: Who is the boss of hydraulic manifold manufacturers, quality departments, production departments, or technical departments? This is an interesting message. This IP is from Russia, and I am not sure if it is a hydraulic manifold manufacturer or a customer who needs to purchase hydraulic manifolds. For hydraulic manifold manufacturers, the quality department, technical department, and production department are the 3 most important departments. The technical department is responsible for developing optimization of production processes, solving abnormal problems on the production site, and improving the design ability of original drawings, especially the latter. Many manufacturers lack such technical engineers; The quality department is responsible for the inspection of finished or semi-finished products, as well as the follow-up and maintenance of materials and equipment. The production department implements production based on the technical department's process flow and process operation execution process. The 3 departments of hydraulic manifold manufacturers should collaborate and work together to ensure product quality and production efficiency. The status of the 3 departments of most hydraulic manifold manufacturers in China is as follows: 1. Some hydraulic manifold manufacturers do not have any important department or largest department, where the boss's direction is, where the thinking is, where the department is, and the results are there. 2. Some hydraulic manifold manufacturers, the production department and quality department are a difficult pair, and they are the most criticized in every meeting! 3. Some hydraulic manifold manufacturers, the technical department have ideas in their mind but do not have the discourse power. 4. Some hydraulic manifold manufacturers, the technical department is the leader, followed by the production department, and the quality department has the least say. 5. Some hydraulic manifold manufacturers, the production department and sales department are in one camp, while technical department and quality department are in the same camp. The production department listens to sales, while the quality department listens to technical department. 6. Some hydraulic manifold manufacturers, technical departments, and quality departments all serve production departments, while the production departments serve sales department. Sales are the top businesses. At hydraulic manifold manufacturer AAK, if from a manufacturing perspective, the production department is the largest, which is also the foundation for our strength. The manufacturing industry is dominated by products, and other departments need to assist the production department in efficient and high- quality production. The manufacturing quality of hydraulic manifolds is unstable, and all efforts are worthless. Hydraulic manifold manufacturer AAK has 2 levels of quality inspection. Firstly, the production department needs to conduct self-inspection, and then the quality department conducts inspections. Quality department has the right to order production suspension, and technical department and production department will work together to resolve the issue. The production department and quality department are opposite, and I think it's a good thing. In the hydraulic manifold manufacturer AAK, if it is only from the perspective of customization, it is the technical department who takes the lead, and other departments cooperate with the technical department to implement the process of design, sample, testing, and delivery. For skilled hydraulic engineers, they are the targets that many hydraulic manifold manufacturers are vying for, but without technological updates, they are static, and production is always dynamic control. At hydraulic manifold manufacturer AAK, sales departments are the leader, production department is the core, and quality department and technical department serve production department. Only high-quality and stable products can provide maximum support to sales. Hydraulic manifold manufacturer AAK, 1 hero, 3 helpers, no boss, just process. AAK HYDRAULIC VALVES (713) 2023-11-12 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak71 , 3

Product Description: Plastic Ball Valves are designed to deliver reliable control and regulation for a wide range of applications. These valves feature a ball valve design with an electric actuator that can be used to precisely control the flow of liquids and gases. The electric actuator is powered by 4-20mA control regulation, providing precise control and regulation for a variety of industrial applications. In addition, the valve is designed with a union ball valve construction that ensures a secure connection and tight seal. The valve is also designed with an IP67 protection rating to provide reliable protection against dust and water ingress. Optional features include a Relay Contact Failure Alarm for added safety and security. Our Ball Valves are an ideal choice for applications that require precise control and regulation. Features: Product Name: Plastic Ball Valves Valve Type: Ball Voltage: AC/DC12-24V, AC/DC95-265V Protection rating: IP67 Control regulation: 4-20mA Optional: Relay Contact Failure Alarm PVC Valve Socket: Yes 2 PVC Ball Valve: Yes True Union Ball Valve: Yes Flanged Ball Valve: Yes Technical Parameters: Property Value Valve Type Ball Bus control feedback RS485(modbus), CANBus 2.0B, Mbus Control regulation 4-20mA Optional Relay Contact Failure Alarm Output regulation 4-20mA, 0-20mA, 0-5V, 1-5V, 0-10V, 2-10V Protection rating IP67 Actuator Type Electric Actuated Voltage AC/DC12-24V, AC/DC95-265V Union Trapezoidal Threaded Union Feedback Passive Contact, Active Contact, Potentiometer Feedback Applications: Plastic Ball Valves, produced by KOSCN, are popularly used in many applications. They are made of superior plastic material, and certified by CE, which makes them reliable and safe. This model, BV201, features true union design, Trapezoidal threaded union and flange connection type, so it can be installed easily without any tools. It also comes with electric actuator, allowing 4-20mA control regulation. Besides, it supports bus control feedback, such as RS485(modbus), CANBus 2.0B and Mbus. With excellent performance and high quality. Support and Services: Technical Support and Service for Plastic Ball Valves We provide full technical support ,they understand the unique needs of our customers. Our technical team is available to assist you with installation, maintenance, and troubleshooting of your plastic ball valves. We offer a wide range of options to meet your specific needs. Whether you need help with the installation of your plastic ball valves, or you need assistance with troubleshooting and maintenance, our experts can provide the guidance you need. We also provide full customer support, including maintenance and repair services, to help keep your plastic ball valves in top condition. Our team is committed to providing the best service for our customers. We are here to help you choose the right product for your application, and to ensure that your plastic ball valves are installed correctly and working smoothly. If you need any assistance or have any questions about our plastic ball valves, please contact us. Our team is here to help you. We look forward to hearing from you. Packing and Shipping: Packaging & Shipping for Plastic Ball Valves Plastic Ball Valves are packaged in standard cardboard boxes with the following information printed on the box: product name, company name, country of origin, and product weight. The boxes are then securely sealed with either plastic tape or plastic sealant to prevent leakage during shipping. The boxes are then placed in a larger shipping container, such as a pallet, for transport. We use a variety of different shipping methods, depending on the customer's needs. We can ship via ground, air, or sea. We also offer express shipping options for urgent orders.

Product Description: Soft Seat Gate Valve is a resilient gate valve made of gast cast iron, and it is widely used in water, steam and oil control systems. It is designed according to DIN/BS5163/ANSI/GB standards and can work within -20℃-120℃ temperature range. It is available in four different types of operation: with handwheel, with cap, with gearbox or for electric actuator. With its perfect sealing performance, it is able to reach Class A seat leakage. Features: Product Name: Soft Seat Gate Valve Application: Water/Steam/Oil Working temperature: -20℃-120℃ Size: DN50-DN800/2''-32'' Operation: With Handwheel/with Cap/with Gearbox/For Electric Actuator Pressure Rating: PN10/PN16/125lb-150lb Material: Ductile Iron Valves, Cast Iron Valves, Gast Cast Iron Valves Technical Parameters: Parameters Values Design Standard DIN/BS5163/ANSI/GB Application Water/Steam/Oil Pressure Rating PN10/PN16/125lb-150lb Valve Type Soft Seat Gate Valve Connection Type Flanged Seat Leakage Class A Size DN50-DN800/2''-32'' Operation With Handwheel/with Cap/with Gearbox/For Electric Actuator Body Material GGG40/GGG50 Working temperature -20℃-120℃ Applications: Soft Seat Gate Valve - Non-Rising Stem/Rising Stem Soft Seat Gate Valves from OEM in China is the perfect solution to meet various application requirements. Built to the highest quality standards, these valves have been designed to meet the highest safety standards with certification of ISO/CE. The Soft Seat Gate Valves come with a Non-Rising Stem/Rising Stem design and are made of GGG40/GGG50 material. They are available in DN50-DN800/2''-32'' sizes and can be operated with Handwheel/Cap/Gearbox/Electric Actuator. The minimum order quantity is 1 and the pricing starts from USD1-100. The Soft Seat Gate Valves come with a Plywood case for packaging and are delivered within 30 days of payment via T/T. With an annual supply capacity of 400 thousand pcs, these valves are the perfect choice for meeting your needs. Customization: Soft Seat Gate Valve Brand Name: OEM Model Number: BS/ANSI/GB Place of Origin: China Certification: ISO/CE Minimum Order Quantity: 1 Price: USD1-100 Packaging Details: with plywood cases Delivery Time: 30 days Payment Terms: T/T Supply Ability: 400 thousands pcs per year Design Standard: DIN/BS5163/ANSI/GB Application: Water/Steam/Oil Operation: With Handwheel/with Cap/with Gearbox/For Electric Actuator Size: DN50-DN800/2''-32'' Working temperature: -20℃-120℃ Soft Seat Gate Valve is made of cast iron and has a soft seat, making it perfect for a variety of applications including water, steam, and oil. It comes with a variety of operations such as handwheel, cap, gearbox or electric actuator, and is available in sizes ranging from DN50- DN800/2''-32''. With a design standard of DIN/BS5163/ANSI/GB, and an ISO/CE certification, it has a working temperature of -20℃-120℃. The minimum order quantity is 1, with a price range of USD1-100, and is supplied with plywood cases. Delivery time is 30 days, and payment terms are T/T. The supply ability is 400 thousands pcs per year. Support and Services: Soft Seat Gate Valve products are supported with technical services and support. These services include: Design support and troubleshooting Installation and commissioning Product maintenance and repair services Software updates and upgrades Operational and maintenance training On-site support

Gerrard, a Spanish hydraulic customer who just repeated the order at the end of May, repeated another order for hydraulic pressure valve again today, with total 3 orders for a hydraulic pressure valve a year. Since Gerrard chose AAK hydraulic valve, his customers are very satisfied with the accuracy and stability of AAK hydraulic valve. The market sales volume has increased by nearly 30% year-on-year. Now he has a higher and higher position in the company. I still remember that Gerrard urgently needed to purchase a batch of hydraulic pressure valves for cranes. However, due to the high requirements for inner hole accuracy, he visited more than 10 hydraulic valve manufacturers, and none of them could reach around 1μm error requirement. Gerrard was very anxious. Fortunately, some peers brought Gerrard into contact with AAK. Finally, AAK helped to solve the problem of inner hole accuracy of hydraulic pressure valve smoothly. 3 months before Gerrard got into touch us, AAK HYDRAULIC VALVE purchased a honing machine imported from the United States to deal with the production of special orders. After repeated exploration for more than a month, modified the fixture of the equipment ourselves, we created the most consistent SOP to ensure the 1 μM accuracy error of the inner hole for the hydraulic pressure valve. At present, less than 5% of the domestic hydraulic valve manufacturers are equipped with this equipment. Among these 5% of hydraulic valve manufacturers, maybe only one manufacturer, we AAK HYDRAULIC VALVE, can modify the equipment on our own. When AAK HYDRAULIC VALVE promised Gerrard that we have 90% of confidence to ensure that the inner hole accuracy of the hydraulic pressure valve can be controlled at 1 μ M, he was uneasy. After all, he visited more than 10 hydraulic valve manufacturers, and none of them successfully controlled the inner hole accuracy of the hydraulic pressure valve to 1 μm。Gerrard also was in doubt. We can understand him, because we haven't done the hydraulic pressure valve with inner hole accuracy error controlled at 1 μ M before. After 15 days of sending the sample, Gerrard emailed us that the sample of AAK hydraulic pressure valve was approved at one time, and the surface finish of the hydraulic pressure valve was also praised by his clients. Subsequently, the first hydraulic pressure valve order from him was successfully completed. AAK hydraulic pressure valve has two absolute advantages in controlling inner hole accuracy: 1.AAK HYDRAULIC VALVE has advanced equipment - honing machine, which is refitted by ourselves to ensure that the inner hole accuracy of the hydraulic pressure valve can be controlled at 1μm. 2.AAK HYDRAULIC VALVE has targeted operation process, can realize the personalized customization demand for the inner hole accuracy of hydraulic pressure valve, which can not be achieved by 95% of domestic hydraulic valve manufacturers. Gerrard said that since the use of AAK hydraulic pressure valve, many end users have fallen in love with their hydraulic products, and there are more and more inquiries than in previous years. Presently, Gerrard orders hydraulic pressure valves from AAK 3 times a year. The customer praised him. The owner valued him. He worked harder and harder. Now his position in the company is getting higher and higher. AAK HYDRAULIC VALVE guarantee 3 years of service life. With the high-precision AAK hydraulic valves, his order volume soared, you can also have a small try. https://www.aakindustry.com/