Valves

Kadin is from Turkey. They have many stores selling hydraulic cartridge valves in Turkey, and the market competition is very fierce. At the beginning of last year, Kadin needed to purchase a batch of hydraulic directional control valves benchmarking SUN. AAK also received his inquiry, but we gave up because the target price was too low. Kadin placed the order with another manufacturer of hydraulic directional control valves in Ningbo. 9 months later, a customer complained of severe wear on the valve body edges and leakage from the hydraulic directional control valve. Per the original hydraulic directional control valve manufacturer, he uses industry standard 45 steel to produce valve bodies, which can be guaranteed to be wear-resistant for more than 1 year. If the usage frequency is too high, it can only last for 9 months. Kadin was very helpless. He contacted more than 10 other hydraulic valve manufacturers in China. They all stated that the 45 steel valve bodies cannot guarantee a service life of more than 1 year under high-frequency operating conditions. If using other stronger materials, the price is much higher, which is not suitable for the Turkey market.   Kadin asked what type of steel is the body material of AAK hydraulic directional control valve? After communication, it was learned that he encountered the problem about the valve body not being wear-resistant. I told him that using 45# steel to produce valve bodies is indeed an industry standard, unless there are special requirements on the materials. But the 45# steel valve body can also guarantee a service life of more than 1 year under high-frequency working conditions. Most hydraulic valve manufacturers in China directly use 45 steel to machine and produce valve bodies, while AAK needs to make an action before production to strengthen wear resistance. Although the cost is a bit higher, AAK has always done so. Kadin accepted my original quotation and asked AAK to produce a small batch of hydraulic directional control valves. After 45 days, we delivered 100 pcs of hydraulic directional control valves.   Last week, Kadin placed a re-peat order of 1,000 hydraulic directional control valves, hoping that I could help with the price to better adapt to the competition in the Turkey market. I gave a 5% discount. Why is the AAK valve body made of 45 steel wear-resistant?   AAK uses 45 steel to produce valve bodies, which are first forged and then machined. We use forging machinery to apply pressure on the 45 # steel billet, causing plastic deformation and obtaining certain mechanical properties. After forging, the crystal structure of the steel piece increases by at least 30%, and the existing segregation, porosity, air hole, slag inclusion etc. in the steel ingot are compacted and welded together. The plasticity and mechanical properties of the steel is increased by more than 50%. On the surface, the valve bodies are all made of 45 steel. By comparison, we can see why the AAK hydraulic directional control valve is durable. This is our trick.    AAK hydraulic directional control valve, more durable than its peers, not only material, you can also give it a try! AAK HYDRAULIC VALVES (600) 2023-06-06 https://www.aakindustry.com/info , -detail/directional-control-valves-aak600

Hydraulic directional control valve troubleshooting, in only half of the time given by Leo, AAK HYDRAULIC VALVE used Fluororubber Sealing Ring and solved the problem of the hydraulic directional control valve troubleshooting that the other hydraulic valve manufacturers have not been able to solve, so that Leo can sleep at ease.   This morning, just after reading the emails in the office and preparing for a cup of coffee, my colleague forwarded me an international express. I was a little surprised that there was no parcel notice from any customer, who sent the hydraulic valves to AAK?   Will it be a complaint? I haven't met this for several years. I opened the package in fear. There are 5 new hydraulic valves inside. After simple inspection, they should be hydraulic directional valves. Looking at the sending address and person, it turns out that it belongs to the old customer Leo. This guy likes to make this sudden attack.   Open the face book and I ask him, these are hydraulic directional valves. What do you need me to do? Leo said, hydraulic directional control valve troubleshooting, can you do it? I'm not good at the hydraulic directional control valve troubleshooting. He didn't reply. I immediately joked that I'm not good at the hydraulic directional control valve troubleshooting, which doesn't mean that AAK HYDRAULIC VALVE is also not good at the hydraulic directional control valve troubleshooting. AAK HYDRAULIC VALVE valve has its own technical team, which can help you on the hydraulic directional control valve troubleshooting. Leo commanded that I have 3 hours to go to bed. Give you 2.5 hours to finish the hydraulic directional control valve troubleshooting. I need to know where the hydraulic directional control valve troubles are and your solutions to the hydraulic directional control valve troubleshooting.   After learning about his use scenarios of these hydraulic directional valves and media, I immediately asked AAK HYDRAULIC VALVE technical team to finish the hydraulic directional control valve troubleshooting within 2 hours. The AAK HYDRAULIC VALVE technical team simulated the use scenario of Leo's hydraulic directional valves under the pressurization and flow scenario. The test report came out soon. There were problems with the sealing rings of these hydraulic directional valves. At the same time, we suggested him use Fluororubber sealing ring to seal this hydraulic directional valve.   We took 1.5 hours to finish the hydraulic directional control valve troubleshooting, which is just half of the time given by Leo. After learning the result, Leo was relieved and could sleep at ease. The story turned out to be this: Leo purchased some hydraulic directional valves, 30% of the hydraulic directional valves have flow parameter problems. The hydraulic valve manufacturer has not been able to have solutions to the hydraulic directional control valve troubleshooting. The boss is very unhappy.   I told Leo that nearly 90% of the domestic hydraulic valve manufacturers use either silicone sealing rings or nitrile rubber sealing rings. They rarely think about different media and different hydraulic scenes or use the appropriate sealing rings according to the media. They all follow the market, just use what other people use. We AAK HYDRAULIC VALVE, as early as 5 years ago, have carried out material analysis for the pain points of sealing rings. After comparison, we have formulated different parameter requirements, different media and different scenarios to correspond to sealing rings of different materials. For example, the sealing performance and stability of fluororubber sealing ring are most suitable for the hydraulic directional valves purchased by Leo.   AAK has targeted Technology on the hydraulic directional control valve troubleshooting, contact AAK if you have needs for the hydraulic directional control valve troubleshooting. https://www.aakindustry.co , m/

There is a hydraulic cartridge valve manufacturer engaged in valve foreign trade. Recently, they had some inquiries about hydraulic cartridge valves, but after replying, the customer had no further information. For foreign trade operations that he doesn't understand, he usually asks me for help. The hydraulic cartridge valves and hydraulic manifolds produced by AAK, have been exported for 13 years, and in his heart, AAK is his benchmark. I asked him, how did your salesperson respond to customer emails? According to the manufacturer of the hydraulic cartridge valves, the communication is like below: Customer A: I am very interested in your MP08-30. Can you send me your price? Reply from the manufacturer of the hydraulic cartridge valves: Please inform us of your quantity? Customer B: Do you have inventory of MP08-30? I want to buy 2 samples for testing first. Reply from the manufacturer of the hydraulic cartridge valves: Can you tell me your email address or WhatsApp number? Perhaps someone may ask, is there anything wrong with the replies to these two inquiries? In the eyes of experienced sales personnel from many hydraulic manifold manufacturers in China, the reply is normal and has no problems. This is actually a typical Chinese style of thinking. The sales of hydraulic manifold manufacturers, and even most experienced sales bosses of hydraulic manifold manufacturers, believe that there is a good price for good quantity, and that price optimization for big quantity is quite popular in China. So, salespeople are often tied down by this domestic trade mindset. For the question 'how many do you want', most foreign buyers are averse to the reply and question like this. From his perspective, the hydraulic manifold manufacturer did not give me a price, nor did they tell me about the hydraulic manifold functions and performance, nor did they express some of the characteristics, advantages, or professionalism of the hydraulic manifold manufacturer itself. So, the salespeople of hydraulic manifold manufacturers should not be constrained by many fixed trade thinking in China. Apply this mindset to foreign buyers, and they will ignore you. Some very realistic ideas and cultures may not be a problem for Chinese people, but when applied to foreign buyers, it may be counterproductive. Therefore, in the view of hydraulic manifold manufacturer AAK, the correct order should be: first, introduce the hydraulic manifold manufacturer AAK before a quotation, then go to the specific details of the inquired products (such as parameters, functions, performance, selling points, etc.), and finally return to the price link or quantity inquiry, so that the buyer feels much more comfortable. For customer inquiries left on the internet, such as those from customer B of the hydraulic cartridge valve manufacturer mentioned above, many buyers do not often log in to the platform to read the replies of the hydraulic cartridge valve manufacturer. Therefore, the salesperson immediately asks the buyer to provide their email or WhatsApp and other contact information for follow-up. At first glance, there is no problem. In China, telemarketing is quite common. If one day a salesperson calls you to promote a product, describes the product letter, and asks you for other contact information such as QQ or WeChat, are you willing to give it? Similarly, in the eyes of foreign buyers, it is indeed inappropriate for you to ask them for other contact information in a very abrupt manner. Many foreign buyers, some of their contact information is personal, and their communication with you now is based on work. They distinguish work and personal life very clearly, and they do not want you to disturb them during their non work hours. The foreign trade salesperson of a hydraulic manifold manufacturer should not immediately ask for the buyer's other contact information, but can first have preliminary communication with the buyer, accept your products and services, and let the buyer have a certain interest in you before naturally asking for their contact information. He would be more willing to give it to you. On the foreign trade path of hydraulic manifold manufacturers, they often encounter buyers who say they have found same or similar products from other hydraulic manifold manufacturers, and the prices are lower than yours. At this point, most hydraulic manifold manufacturers replied: 'You get what you pay for, our quality is better. That company's quality is not good, and this low price is definitely for products with quality issues.'. This is also a typical Chinese way of thinking in foreign trade, and 99% of the time this explanation may not have any effect. Firstly, their prices are lower than yours. To prove that your product has better quality and more complete performance, you need to provide evidence, facts, or customer cases. The truth that facts speak louder than words is understood by both Chinese and Western people. Secondly, many foreign buyers do not like one supplier very much who slanders the product quality of another supplier, which in their view is a particularly despicable business competition behavior. In the final analysis, these foreign trade responses mentioned above are all constrained and influenced by fixed thinking, and most hydraulic manifold manufacturers find it difficult to jump out of it on the foreign trade path. Hydraulic manifold manufacturers use these ideas to communicate with buyers, especially Western customers, and there is basically no response. Whether hydraulic cartridge valve manufacturers or hydraulic manifold manufacturers, there are some very unprofessional and old-fashioned phenomena in domestic trade. For example, the delivery time of the manufacturer is not guaranteed, the promised delivery time of the manufacturer is 4 weeks, and the actual delivery time is more than 10 days. For example, when you confirmed the quote and placed an order, this hydraulic manifold manufacturer will increase the price for you, or another hydraulic manifold manufacturer mentioned material cost increase and need a new price. Hydraulic manifold manufacturer AAK in Ningbo China, on the road to foreign trade, understands rules and adheres to integrity. AAK HYDRAULIC VALVES (707) 2023-11-04 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak70 , 7

Pedro, one of our old Brazilian customers, introduced AAK to Joao in August last year. I thanked Pedro for his trust, but also requested myself to thoroughly solve the problem of hydraulic pilot operated pressure control cartridge valve encountered by Joao for the trust of Pedro. Trust is the lifeline of AAK cartridge valve, whether it is the production, promotion or marketing of cartridge valves. Joao's customer tried to order 5 sets of hydraulic power units, but the commissioning was not smooth and the equipment vibrated too much. Their engineer believed that the hydraulic pilot operated pressure control cartridge valve purchased by Joao was not up to the standard, and the change of the pilot pressure was delayed, resulting in the actuator action delay and vibration. The original manufacturer of the hydraulic pressure control cartridge valve said that it was manufactured according to the customer's drawings and the accuracy was up to standard. Joao was caught between supplier and engineer, which was very embarrassing.   Joao contacted his friend Pedro, which gave the opportunity for AAK cartridge valve to perform. Joao's first email to us is as follows: Pedro told me that if there is any difficulty in cartridge valve, just contact AAK. I stayed at AAK cartridge valve website for more than 7 minutes. The fact that AAK solved difficult problems for customers showed me hope. I told him that to avoid equipment vibration, the response speed of the hydraulic pilot operated pressure control cartridge valve should be increased first, and the pilot pressure should not lag, so as to avoid the opening lag of the counterbalance valve in the system. After 45 days, AAK sent the samples of hydraulic pressure control cartridge valves.   Last week, Joao sent an email to inform us that with AAK hydraulic pilot operated pressure control cartridge valve installed, the commissioning of the hydraulic power unit was smooth and there was no vibration. The customer was also satisfied. AAK hydraulic pilot operated pressure control cartridge valve can improve the opening lag of the counterbalance valve in the system, because we have made innovations in 3 aspects, which most cartridge valve manufacturers have not expected.   1. The vent cavity, ejector hole and control cavity of the hydraulic pressure control cartridge valve body are on the same axis. The side wall of the valve body is provided with an oil outlet connecting the control chamber and the inclined hole. The two oil ports of the valve body are respectively connected with the main oil circuit and the control chamber of the hydraulic system, forming two parallel connection channels.   2. The spring seat of the hydraulic pressure control cartridge valve is located at the bottom of the ventilation chamber, the adjusting sleeve is threaded in the ventilation chamber, the adjusting bolt is connected in the threaded hole on the adjusting sleeve, and the first connecting channel has fixed hydraulic resistance parts connected in series with small holes.   3. The side wall of the valve seat of the hydraulic pressure control cartridge valve is provided with a small hole to connect the inner hole of the valve seat with the annular cavity. There is a steel ball in the lower cavity of the valve seat. A return spring is installed in the cavity at the upper part of the valve base. The upper end of the ejector rod conflicts with the lower end of the spring seat, while the lower end of the ejector rod conflicts with the steel ball. The outer circumference of the ejector rod and the inner hole of the valve seat form a circular gap.   AAK hydraulic pilot operated pressure control cartridge valve, fast response, no vibration, you can also try it! https://www.aakindustry.com/info-detail , /pressure-control-cartridge-valves- aak513

Zander is from a hydraulic manufacturing company in Greece. In the first half of this year, their company planned to upgrade the old logistics crane and put it back on the market. Its main goal is to improve its stability by 20% compared with its peers. The optimization of the hydraulic cartridge counterbalance valve is the key, but the original hydraulic cartridge counterbalance valve manufacturer has no ability to innovate. Zander found a local hydraulic cartridge valve manufacturer to optimize the structure and make samples. However, during commissioning, when the load of the system drops, the pressure fluctuation cannot exceed that of the peers, and the hydraulic cartridge counterbalance valve cannot avoid load interference. The local hydraulic cartridge valve manufacturer has no ability for further improvement. 2 months passed by, but there was still no solution. The boss pushed for progress many times, and Zander was worried. Zander found AAK on Google, noticed that AAK had released some customer cases about hydraulic cartridge counterbalance valves, and sent us an email. According to the schematic diagram of the hydraulic system and the original hydraulic cartridge counterbalance valve drawing provided by him, AAK engineer informed that the structure optimized by his local hydraulic cartridge valve manufacturer was not reasonable and needed to be adjusted. AAK has a trick to prevent the hydraulic cartridge counterbalance valve from being affected by the load. Zander asked for AAK samples. After 45 days, AAK sent 20 samples of hydraulic cartridge counterbalance valves. 3 months later, Zander sent an order for 500 hydraulic cartridge counterbalance valves, and told us that their technical department was very satisfied with AAK hydraulic cartridge counterbalance valves. Not only did they overcome the load impact, but also improved the stability of their new logistics crane by more than 20%. In the promotion stage, the booking was good, and the boss was happy. AAK hydraulic cartridge counterbalance valve can stably control the opening of the valve spool without being disturbed by the load, and its stability is higher than that of its peers, because we have tricks on optimizing the structure. AAK hydraulic cartridge counterbalance valve is composed of a valve body, a valve seat, a main valve spool, a pilot valve spool and a pilot mechanism. The valve seat is connected with the valve body and forms a connected first channel. The extended end of the valve seat butts against the pilot mechanism and forms a second channel. The main valve spool is provided with a throttling slot. One end of the pilot valve spool slides and is arranged in the inner cavity of the main valve spool. The other end is connected with the pilot mechanism. The pilot valve spool is equipped with a throttling slot. The pilot valve spool is connected with the inner cavity of the main valve spool as a balanced structure. The force of the pilot mechanism can balance the oil pressure in the oil passage on the pilot valve spool. Therefore, the opening of the main valve spool is not affected by the load pressure wave. AAK hydraulic cartridge counterbalance valve, free from load interference, you can also have a small try! https://www.aakindustry.com/info-detai , l/counterbalance-valves-aak440

The hydraulic needle valves produced by AAK has no leakage and its stability exceeds that of most of its hydraulic valve peers, enabling a foreign trade company in Guangdong to save a major global top 500 customer. The key is that AAK adopts high-precision processing equipment imported from Switzerland to produce hydraulic needle valves. At present, there are less than 5 hydraulic valve manufacturers with such high configuration in the hometown of hydraulic valves in Ningbo. Most hydraulic valve manufacturers use CNC lathe to produce hydraulic needle valves. The hydraulic needle valves made by CNC lathe has high technical requirements for operators and is prone to human errors, such as the valve spool deviates from the central axis. Because of human error, the hydraulic needle valve leaks, and it is not easy to judge which part has the problem. At the end of last year, Mr. Wang, the general manager of a hydraulic valve export company in Shanghai, received complaints from major customers about the several batches of hydraulic needle valves, which made them in a mess. Under the introduction of friends, he came to our company and brought those hydraulic needle valve samples with problems. After inspection, it is found that the main line of the hydraulic needle valve is offset, and the valve spool deviates from the central axis. I told him that this problem is easy to solve and also easy to cause problems. Only with a better CNC lathe can it be guaranteed. We provided him the test data of AAK hydraulic needle valves for comparison, and also asked him to take several hydraulic needle valve samples at random and send them to his customer to compare with the domestic peers. More than half a year later, there was still no reply from Mr. Wang. I didn't know how difficult it was for a top 500 enterprise to place a new order until I had a telephone communication with Manager Wang for more than 30 minutes last week. After Mr. Wang went back last time, he wanted to send the samples of AAK hydraulic needle valves to the major foreign customer, a global top 500 enterprises. At first, the customer refused until their overseas colleagues came to visit with the samples of the hydraulic needle valve to test the samples together on site. After the test, the customer was very satisfied with the quality of the hydraulic needle valve samples, which not only had good surface gloss, high precision, but also had strong sealing performance. Customer is willing to place a trial order first. As long as the quality of the mass production is the same as the samples brought, they can continue to purchase all kinds of hydraulic valves from their company. Mr. Wang asked us to work together to keep this global top 500 customer. In order to achieve zero leakage of the hydraulic needle valve, AAK HYDRAULIC VALVE has imported the highest precision production equipment from Swiss to make up for the short board of CNC lathe. At present, less than 10% of the peers have this equipment. It can replace 7 groups of accessories at random. The high-pressure hydraulic needle valve produced by Swiss equipment has high precision, which is at least 20% higher than that of domestic conventional CNC lathe. Not only high precision, but also stability. The zero leakage AAK hydraulic needle valve is being used by global top 500 enterprises. You can also try an order.

Under the pressure and flow conditions, AAK hydraulic valve effectively controls the sealing ring of each hydraulic valve, so it always ensures that the flow parameters in the hydraulic directional valve system are at the normal value. Only a small detail of the sealing ring has made the reputation of AAK hydraulic valve exceed that of many domestic and foreign peers. I will not modest about this. Many hydraulic valve manufacturers are used to domestic sales and are used to dogmatic production. Maybe they can copy the production process of their peers and continue to use some traditional technologies, but they may be helpless on the details or hidden problems of some spare parts. Leo, an old customer, suddenly sent me 3 samples of hydraulic directional valve some time ago. I didn't receive any email about these samples of hydraulic directional valve in advance. So I thought Leo asked us to offer a quotation. After receiving the hydraulic directional valve samples, I asked him by e-mail how many quantities he needs and what scenario this hydraulic directional valve will be used, then I would give him the plan of this hydraulic directional valve. However, Leo didn't need my quotation, just let me judge the quality of these hydraulic directional valves. Sending samples to let me just see the quality without doing other actions. This was the first time I had met. After testing these hydraulic directional valve samples, AAK HYDRAULIC VALVE technical team found the overall quality was good. The only hidden danger was that the flow parameters of one of the hydraulic directional valves were a little unstable, which should be adjustable in use. I directly told Leo that these hydraulic directional valves were qualified, but he should pay attention to flow adjustment during use. Leo's email reply surprised me again. Leo said that no wonder he stumbled in purchasing these hydraulic directional valves. Even AAK HYDRAULIC VALVE couldn't find problems with these hydraulic directional valves. I angrily asked the technical team to test these hydraulic directional valves again and simulate the use scenario of Leo's hydraulic directional valve under the pressurization and flow scenario. The test report came out soon. There were problems with the sealing rings of these hydraulic directional valves. Leo was relieved when he learned of the result and found the root of the problem. 30% of the hydraulic directional valves he purchased this time had the problem of flow parameters lower than the standard parameter values required by customers. His hydraulic valve manufacturer had been unable to find the root cause of the problem. He never thought it was caused by the mismatch of sealing rings. The traditional nitrile rubber sealing rings were not suitable for hydraulic scenes. I told Leo that nearly 90% of the domestic hydraulic valve manufacturers use either silicone sealing rings or nitrile rubber sealing rings. They rarely think about different media, different hydraulic scenes, and adjust the appropriate sealing rings according to the media. They just follow the market and use what other people use. We AAK HYDRAULIC VALVE, as early as 5 years ago, had conducted material analysis for this technical pain point. After comparison, we specified different parameter requirements, different media and different scenarios to correspond to different material sealing rings. For example, the sealing performance and stability of fluororubber sealing ring are most suitable for the hydraulic directional valve required by Leo’s customer. AAK hydraulic directional valve has details and targeted technology. You can try a small order.

Today, AAK posted a solenoid cartridge valve E-SF08-20, benchmarking HydraForce SF08-20. It is a solenoid-operated, 2 way, normally closed, piloted poppet- type, screw-in hydraulic cartridge valve and intended to act as a blocking or load-holding device for low flow circuits. Many hydraulic valve manufacturers in Ningbo China do not have this model. One of our customers in Brazil checked with 7 hydraulic solenoid valve manufacturers in 3 months, but none of them have this solenoid valve. He was very happily to get it from AAK, and the manufacturing quality and performance is equivalent to HydraForce SF08-20. The selling points of this solenoid cartridge valve are: 1. Internal Leakage: 3 drops/min 2. Benchmarking HydraForce SF08-20 Technical parameters of AAK E-SF08-20 NORMALLY CLOSED SOLENOID CARTRIDGE: Max. Operating Pressure: 350 bar (5000 psi) Internal Leakage: 3 drops/min max. at 350 bar (5000 psi) Temperature: - 40 to +120 °C (with Standard Buna N seals) Cavity: 08-2 For this normally closed Solenoid Cartridge Valve, the quality is benchmarking HydraForce SF08-20, you can also try it out. AAK HYDRAULIC VALVES (599) 2023-06-05 https://www.aakindustry.com/info , -detail/solenoid-valves-aak599

A few days ago, hydraulic cartridge valve manufacturer AAK released an article titled "The cleaning of hydraulic solenoid cartridge valve SV08-20, is not refined on by every hydraulic cartridge valve manufacturer ". Dotan from Israel left a message: "We have a customized hydraulic cartridge flow control valve from Israel, with a slightly special contour of the valve cage. The original manufacturer of the hydraulic cartridge flow control valve was also equipped with hydraulic valve ultrasonic cleaning equipment, but there are still a few hydraulic cartridge flow control valves with residual impurities, and customers are not very satisfied. The hydraulic cartridge valve manufacturer also has no good solution.”. According to the pictures sent by Dotan, the cleaning of the hydraulic cartridge flow control valve is not a one-time solution. I told Dotan that the stability of the quality of these special products often tests the details and even micro details of the hydraulic cartridge valve manufacturer, such as AAK's innovative ultrasonic cleaning process for hydraulic valves and the three-step cleaning process, which reflect AAK's focus on details. But often behind a detail, there are also some micro details to lay the groundwork. Imitation of details may not be difficult, but can we continue to focus on details and explore more details? This tests the quality awareness and innovative spirit of a hydraulic cartridge valve manufacturer. The cleaning of this hydraulic cartridge flow control valve must require ultrasonic cleaning before packaging, but there is still a risk of impurities in the valve cage. AAK's suggestion is to clean the valve cage before assembling the hydraulic cartridge flow control valve. I sent an old video to Dotan about how AAK cleaned the valve cage. The next day, Dotan advised that their original hydraulic cartridge valve manufacturer did not have such a micro detail like AAK to clean the valve cage first. The key to cleaning special valve cages lies in careful operation and the proportion of cleaning oil. AAK formulates its own cleaning oil based on the characteristics of impurities, which does not stick to metal surfaces. The cleaning process is then set to tap water mode, utilizing the potential energy of the liquid to impact. In combination with a manual brush, clean all parts of the valve cage, especially the concave corners, and finally rinse the oil port with clean oil. After cleaning, place it on a tray and dry it before entering the assembly process. AAK hydraulic cartridge flow control valve, with details, and further micro details, you can give it a try. AAK HYDRAULIC CARTRIDGE VALVES (706) 2023-11-02 https://www.aakindustry.com/info , -detail/hydraulic-cartridge-valve- manufacturer , s-aak706

Alston is the purchaser of a British hydraulic valve company. He has been purchasing hydraulic valves in Ningbo for 3 years and has been very smooth. Last month, he purchased a batch of hydraulic pressure valves. During the sample approval process, the automatic pressure regulation of the hydraulic pressure valves was not very stable. The hydraulic valve manufacturer checked again and again, but still could not find the reason. Alston had a headache. Alston realized that he has to look for a new hydraulic valve manufacturer to try, otherwise the order would go away. When he sent the detected data and parameter requirements to the hydraulic valve manufacturers he had previously contacted, only one manufacturer told him that it was the problem with the pressure spring material or the processing process, but because of power limitation, he has no time to produce this hydraulic pressure valve order. The other manufacturers replied that they need to make samples first before they knew the results. Alston felt the pressure. Coincidentally, he heard that the AAK HYDRAULIC VALVE paid great attention to the pressure spring. When we received his email, we understood that this hydraulic pressure valve has very high requirements for automatic adjustment of the pressure spring. We produced and supplied a batch of similar designs to a Russian customer as early as 2 years ago, so we sent him pictures of similar hydraulic pressure valves. Alston felt that AAK HYDRAULIC VALVE could solve this dilemma and asked how long it would take to produce 1000 hydraulic pressure valves. We advised that the delivery time depends on the production time for the pressure spring, because of power limitation, the production capacity of the pressure spring is very low. According to the warehouse inventory, there are 440 inventories. For the remaining 600, according to the current power consumption, we conservatively estimate that it will take an additional 45-55 days. Therefore, only 400 hydraulic pressure valves can be shipped to him, and the remaining 40 pressure springs should be reserved for make samples for other customers. For this pressure spring, most of our peers use carbon steel, which will cause the plasticity and toughness of this valve spool to be very general, the tensile strength is relatively weak, and the stability is difficult to control. There is no problem to use it for the general quality requirements. As early as 5 or 6 years ago, AAK has replaced the carbon steel pressure spring with the piano steel wire pressure spring imported from South Korea. There were only a few manufacturers using it in the whole hydraulic industry in Ningbo. The piano steel wire pressure spring imported from Korea has high strength, good elasticity, fatigue resistance, creep resistance and toughness, smooth and clean surface, strong anti rust ability, specified tensile strength and torsional performance, and there will be no cracks, folds, scars, tensile cracks and corrosion on the surface. AAK hydraulic pressure valves, with imported piano steel wire pressure spring, can be used with peace of mind. You are courage to try a small order. https://www.aakindustry.com/info-detail/hy , draulic-pressure-valves-aak91

Mason, an old customer of hydraulic valves from the United States. In March this year, he was not satisfied with the quotation of one of our hydraulic valve blocks, which was nearly 7% higher than his target price, so he didn't place an order with AAK HYDRAULIC VALVE. Unexpectedly, he sent an email last week asking whether our quotation of hydraulic valve block in March was still valid. We replied that you were our old customer and the price must be valid. Mason also frankly told us that there was a problem with the hydraulic valve blocks he purchased, which made him very headache now. After communication, we learned that there were no problems in the preliminary test and shipment inspection on the hydraulic valve blocks produced by his previous hydraulic valve manufacturer. In the recent month, users had gradually reported that after setting up and debugging, the surface of the hydraulic valve block fell off paint, rusted, and even there was pollution inside the hydraulic system. Nearly 60% of the 300 hydraulic valve blocks purchased had this situation, and only 40% were still on sale. His boss found something wrong and suspended the sale of the remaining products. The hydraulic valve manufacturer believed that this was caused by the improper use of the hydraulic valve block by the user, and was only willing to replenish 10% of goods to solve this problem. His boss asked him to find a qualified hydraulic valve block supplier as soon as possible. Because the use scenario of this hydraulic valve block was special, Mason knew that AAK HYDRAULIC VALVE could solve this problem, but his did not have authority to pay a 7% higher price. He contacted no less than 10 hydraulic valve manufacturers, and only 3 of them replied. They could solve the paint falling and rust spots on the surface of the hydraulic valve block, but the internal pollution could not be 100% avoided because they did not know the user's operation. The remaining hydraulic valve manufacturers did not give any reply at all. Mason was very helpless. He had to bite the bullet and asked his boss for help if the purchasing price could be raised. When his boss learned about the whole purchase process, he asked Mason, why he did not report this situation in March? After the delivery date provided by AAK HYDRAULIC VALVE was agreed by his users, Mason sent us the order for this hydraulic valve block, and asked us to ship as early as possible. At the same time, his boss was curious about how we did it. The anti-rust treatment of AAK hydraulic valve block in the past is the same as that in other factories, which adopts surface painting or conventional electroplating treatment. The pain point of this process is that the hydraulic valve block is easy to be scratched, causing corrosion and increasing system pollution. We understand these potential problems of this process, and our technical team adheres to the new process exploration, so that AAK now has its own unique anti-rust technology. With the increasing requirements for product aesthetics and pollution control, AAK HYDRAULIC VALVE has its own proprietary anti-rust treatment technology, it electroplates a 0.02 ~ 0.03 mm thick special coating on the surface of the hydraulic valve block. This coating has excellent adsorption, not easy to fall off and also bright appearance. Only on this point, AAK has crushed most peers. For the production of hydraulic valve block, AAK has proprietary anti-rust technology, which is enough to reassure you. You can have a small try.

Barnaby is from Brazil, has purchased hydraulic threaded cartridge valves in Ningbo for 5 years. He has purchased several standard parts of SUN cartridge valves from AAK. He always thinks that AAK cartridge valves are expensive. At the beginning of last year, the customer complained that their hydraulic cartridge valve, installed in the hydraulic power unit, had leaked in 6 months. The original hydraulic cartridge valve manufacturer said that the seal ring structure was damaged in the assembly process, and the seal ring could only be replaced, but after 1 month, there was leakage again. Barnaby realized that the hydraulic threaded cartridge valve from this manufacturer has a service life of only 6 months. The boss is not satisfied with his purchase. There are always complaints from customers. Barnaby feels the pressure from the boss. Barnaby emailed me in August last year: Can AAK ensure that each hydraulic threaded cartridge valve has no leakage within 1 year? After communication, we learned that he was facing difficulties in purchasing from Ningbo cartridge valve manufacturers. According to the cartridge valve manufacturers he mentioned, I admit that the price of AAK hydraulic threaded cartridge valve is about 20% higher than those of these peers. However, I guarantee that the service life of AAK hydraulic threaded cartridge valve is twice that of its peers. Barnaby's hydraulic threaded cartridge valve has a service life of 6-8 months if it is sealed in a conventional or universal way. AAK rarely uses traditional methods but to optimize the sealing method of the original hydraulic threaded cartridge valve, which has a service life of at least 12 months. After 45 days, AAK sent 38 hydraulic thread cartridge valve samples and promised to refund the full amount of the fee if there was leakage within 12 months. The day before yesterday, Barnaby emailed me that the customer had been using AAK hydraulic threaded cartridge valve for nearly 6 months, and there was no complaint. I told him that there would be no complaint in another 6 months, and did not say anything else. Unexpectedly, he listed 12 standard parts of SUN hydraulic thread cartridge valves yesterday for us to quote. This is an action that Barnaby has never done before. By the way, for this type of hydraulic threaded cartridge valve, AAK sealed it as below. Most of the cartridge valve manufacturers in Ningbo do not use this sealing method or structure. 1. Selection of sealing material: The material of O-ring is made of PU polyurethane rubber sealing ring made in Japan, and the material of retaining ring is polytetrafluoroethylene. Although the cost of these materials is more than twice that of general materials, AAK insists on selecting the most durable material to ensure the service life of hydraulic threaded cartridge valves. 2. Innovation inside the valve body: the regulating and driving device of the hydraulic thread cartridge valve is installed in the valve sleeve, and the valve spool is of inverted cone structure. 3. Optimization of sealing mode and structure: the sealing ring group is composed of O-ring and retaining ring. The sealing ring group is between the valve sleeve and the valve spool, and the retaining ring is of double-sided structure. The retaining ring not only seals, but also protects the O-ring from being squeezed. With the protection, the O-ring is not easy to be deformed and damaged, and the O-ring can avoid to be cut during installation. AAK hydraulic threaded cartridge valve, although 20% more expensive, its service life is twice as long as that of other hydraulic cartridge valve manufacturers in Ningbo China. You can also try it! https://www.aakindustry.com/info-detail , /cartridge-valves-aak512

9 months ago, we received an email from an old customer in the UK, informing that Berge had transferred from the quality control department to the import department. We could see from the email of the young man's self-introduction that he was full of confidence in procurement. Unfortunately, the first hydraulic valve order went wrong. A batch of orders for hydraulic flow valves shipped from a hydraulic valve manufacturer in Ningbo had no problem when tested before leaving the factory. However, when the goods were delivered to customers, the company received a series of quality complaints from consumers in only 1 month, and nearly 20% of the hydraulic flow valves had leakage. The boss was not very happy, and requested Berge to solve the guest's complaints within 1 week. Berge had discussed with the original hydraulic valve manufacturer several times, but it has not been effectively solved, and he even wanted to resign. Shawn, a former old purchaser, felt his frustration and reminded him to communicate with AAK HYDRAULIC VALVE to see if it could be solved. We received Berge's email with product drawings, pictures and test data of the defective hydraulic flow valves. We preliminarily judged that there was a problem with the valve spool. In order to solve the problem at one time, Berge asked his hydraulic valve manufacturer to send 5 samples of defective hydraulic flow valves to AAK HYDRAULIC VALVE for thorough inspection. After receiving the hydraulic flow valve samples, frankly speaking, the main line type of the hydraulic flow valve was acceptable. The problem was that the valve spool deviated from the central axis, resulting in leakage. Of the 5 hydraulic flow valve samples sent, two were in this situation, and the other three were of acceptable quality. This proved what we said before that it was difficult to 100% ensure that the valve spool did not deviate from the central axis due to human error, which was a hidden problem among peers. I suggested him to replenish 40% hydraulic flow valves to their customer within 30 days. If the customer could accept this suggestion, we would give priority to the production of these replenished hydraulic flow valves. A week later, Berge informed by email that his boss had agreed to the plan and his customer could accept only 20% replenishment. They just repeatedly stressed that the replenishment of the hydraulic flow valve could not have any quality problems. AAK realized a few years ago that the hydraulic flow valve produced by CNC lathe has high requirements for operators and is prone to human errors, resulting in the deviation of valve spool from the central axis. On the production equipment, AAK HYDRAULIC VALVE have imported the Swiss machine tool with the highest precision to make up for the short board of CNC lathe. At present, less than 10% of the peers have this equipment. It can replace 7 groups of accessories at random. The high-pressure hydraulic flow valve produced by Swiss equipment has high precision, which is at least 20% higher than that of domestic conventional CNC lathe. Not only the precision is high, but also the stability is guaranteed. Last week, we received Berge's good news email. The customer was very satisfied with the replenishment of the hydraulic flow valve, and the boss was also very happy. Berge also joked with us that it was thanks to us AAK HYDRAULIC VALVE, otherwise he would have changed his job. AAK hydraulic flow valve, our old customers have been purchasing because of trust. You can also have a try. https://www.aakindustry.com/info-detai , l/hydraulic-flow-valve-aak99

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. 3. The valve spool shall be subject to semi finishing, and 0.1-0.15mm allowance shall be reserved during the process, and then the valve spool shall be subject to tempering treatment. The temperature of tempering treatment shall be 320°C, and the temperature shall be kept for 5 hours, which can eliminate the residual internal stress and greatly improve its stability. After tempering the valve spool, the honing machine shall be used for finishing to ensure the accuracy and ensure that each valve spool meets the standard. AAK hydraulic cartridge directional control valve, the valve spool is processed specially, you can also try a small order! https://www.aakindustry.com/info-det , ail/directional-control-valves-aak439