Mechanical Hardware

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/

Peder is from Greece. He purchased hydraulic valve blocks from AAK 3 years ago. He purchased hydraulic valve blocks every 3 months in the first 2 years. There are ductile iron materials, aluminum blocks and alloy steel (ZG20SiMn), which have been very smooth. But since the inquiry of a hydraulic valve block last July, there has been no news. We followed up via emails for several times but still no reply. Until last week, that’s 6 months later, we received his PO for 100 hydraulic valve blocks, which was quite unexpected. After communication, we learned that Peder sent the hydraulic valve block order to another manufacturer after inquiring about it in July last year, because the price of the hydraulic valve block is 12% cheaper than AAK. But their hydraulic manifold was complained after 6 months. The hydraulic cartridge valve was stuck due to the burr residue in the hydraulic valve block, and there were also complaints that the hole accuracy is not up to standard, and the hydraulic manifold has leakage. The original hydraulic valve block manufacturer blamed the hydraulic valve block for its complex oil channel, high processing difficulty, and difficulty in achieving 100% burr-free. The current accuracy is their limit. Peder realized that he chose a manufacturer of hydraulic valve block that is not of high quality. Peder had to return to AAK hydraulic valve block after 6 months. Because of the AAK hydraulic valve blocks purchased before, are free of complaints. Even the complex oil circuit, the burr can be completely removed. AAK hydraulic valve block has 3 features: no defect, no burr, and 100% accuracy. The key source is from 3 aspects: 1. When programming, use the tool magazine and tool length compensation function to make the equipment control more accurate. The processing adopts the method of one clamp and one top. The mandrel is installed on the three-jaw chuck of the CNC indexing head, the threaded hole is connected and screwed with the mandrel, and the left end is supported by the matching tailstock center to ensure that the center is coaxial with the axis of the mandrel. 2. AAK equipment for producing hydraulic valve blocks: the 5-axis machining center can automatically and continuously complete the milling, drilling, boring, tapping and other processes of the hydraulic valve block, which not only has high efficiency, but also ensures the machining accuracy of the hydraulic valve block. After processing, use a CMM to check the hole accuracy to ensure that the accuracy reaches 100%. 3. Deburr and polish without dead angle. The main shaft of the equipment can swing 360 °, and the burr can be removed no matter it stays in the cross hole of the hydraulic valve block, or the slender hole, or the blind hole. After removal, each hole shall be inspected with an industrial endoscope to ensure 100% burr-free. AAK hydraulic valve block, 3 features. Although it is some more expensive, there are no complaints. You can also try it! https://www.aakindustry.com/info-detail , /hydraulic-valve-blocks-aak517

It took 3 months and 6 proofing adjustments to match the sample quality of hydraulic pressure control valve made in Germany. Finally, AAK passed the parameter test of hydraulic pressure control valve, and our hydraulic pressure control valve was affirmed by Eaton’s company. We became Eaton’s first supplier for hydraulic pressure control valve in China. In mid October last year, an agent of Eaton came to AAK HYDRAULIC VALVE and brought a sample of Eaton hydraulic pump with a purchase value of more than US$150,000.00, asking us to make a quotation. After we checked the product parameter requirements of the artwork, we declined the quotation because AAK is only good at hydraulic valve products. Compared with its domestic peers, most of the technologies of AAK HYDRAULIC VALVE were in TOP 1-6. We thought Eaton agent would not consider us again. However, after a month, he came again and brought a Vickers Series solenoid valve with a value of up to US$200,000.00. We directly said that we are not good at this kind of products and couldn't quote. Eaton agent saw that we rejected the products that AAK is not good for 2 times, he felt that AAK is different from other hydraulic valve manufacturers, and recognized the professionalism of AAK HYDRAULIC VALVE. For the 3rd time, he brought a sample of pilot hydraulic pressure control valve with very high precision and wanted to test the parameters with our pressure test bench. I realized that Eaton agent actually wanted to test our pressure test bench with his samples. It was the first time for us to encounter such a situation, the purchaser did not test the quality of AAK hydraulic valve, but tested the equipment producing hydraulic valves first. Being satisfied with our pressure test bench, he asked if we were interested in this pilot hydraulic pressure control valve, which was a hydraulic pressure control valve produced in Germany. After learning the parameters of the hydraulic pressure control valve in detail, AAK HYDRAULIC VALVE technical team discussed the artwork of the hydraulic pressure control valve. We were 90% sure to match the quality of this hydraulic pressure control valve produced in Germany. More than 20 days later, we sent the first approval sample of the hydraulic pressure control valve. The sample comments was that there was still a 12% difference between the accuracy of AAK hydraulic pressure control valve and that of German hydraulic pressure control valve. We were required to send the revised sample again. The whole proofing and approving process have been bumpy, the parameters were continuously required to be improved. The samples have been adjusted for 6 times, finally, it met the quality of the German hydraulic pressure control valve after 3 months. Since its establishment in 2006, AAK has always put technological innovation, high-quality raw materials and advanced equipment in the first place. AAK HYDRAULIC VALVE has many high-precision imported CNC lathes and honing machines, as well as many small AAK designed fixtures and assembled special processing equipment. Each equipment has operation instructions to eliminate human errors. At the same time, we have also undertaken many hydraulic valve orders from global TOP 500 enterprises such as HydraForce. In Ningbo, it is difficult to find the 2nd such hydraulic valve manufacturer. AAK HYDRAULIC VALVE, focused on only one thing, is committed to the research and development of hydraulic valve and produce good quality hydraulic valve. You can also try a small order. https://www.aakindustry.com/

Just yesterday, I received a repeat order from Andy for a hydraulic flow control valve, which is just 3 months away from the delivery time of the last batch of hydraulic valves. The American customer Andy, started to communicate with us in 2019. Maybe it was just not the right time, we still didn't partner with each other till the beginning of this year. Because of encountering a Waterloo at the previous hydraulic valve manufacturer, he turned the tables at AAK and regained his confidence. At the end of last year, Andy purchased a batch of hydraulic flow control valves from a hydraulic valve manufacturer. Because 20% of the shipments leaked, he encountered customer claims. The old hydraulic valve manufacturer was unwilling to bear the claim or re-produce. The customer kept pushing for replacement hurriedly. The boss asked him to find a high-quality hydraulic valve manufacturer to reproduce the goods for the customer. Andy had a big headache at that time. The replacement quantity is not big, the hydraulic valve manufacturers with exquisite quality were unwilling to produce the small quantity for him. The hydraulic valve manufacturers who were willing to produce this quantity, were not able to meet the customer’s requirement about the roughness of hydraulic flow control valve. He ran into a wall everywhere, which made Andy haggard. When Andy contacted with AAK HYDRAULIC VALVE, we are willing to cooperate with her to solve this difficult problem. We tested the leaked hydraulic flow control valve sample. The reason for the leakage is the roughness of the mounting surface of the hydraulic flow control valve. According to the customer's service conditions, this roughness must be controlled at 1.0 μ M or less. Andy is very confused why 80% of the installation surface roughness of hydraulic flow control valve is up to standard, while 20% is beyond this range. The root of this fluctuation is the master's operation method, resulting in human error. The surface roughness is the depth, density, texture of the traces left on the machined surface from the action between the tool and the part surface, which depends on the master's processing technique. Andy is very clear that at present, most domestic hydraulic valve manufacturers generally control the roughness of the installation surface of hydraulic flow control valve at 0.8-1.0 μ m. The biggest problem is not stable enough. Andy also knows that only AAK controls the roughness value of hydraulic flow control valve within 0.8 μ M, which can completely avoid leakage outside the hydraulic flow control valve, because of rest assured, Andy decided to repeat the order with AAK HYDRAULIC VALVE. AAK HYDRAULIC VALVE, first determines the material according to the roughness required by the customer, and then determine the cutting process of the material according to the characteristics of the material. The workshop produces it in strict accordance with the process sheet. Technically, we abandon the traditional grinding technology and use "turning instead of grinding". Equipped with high-precision CNC lathes, we refit elastic cutting tools by ourselves, and use automatic measuring instruments. The Ra value of hydraulic flow control valve is controlled in the computer at any time, which can eliminate man-made errors and prevent the fluctuation of Ra value of hydraulic flow control valve completely.   AAK hydraulic valves, produced with ingenuity, can be purchased with confidence. At the same time, the delivery date can be guaranteed. If you have any concerns about the hydraulic valve, you might come to have a look at our website www.aakindustry.com. https://www.aakindustry.com/

This week, we launched a hydraulic check valve with 3 key elements benchmark SUN CXCD standard parts. This hydraulic check valve is free-flow, side-to-nose check valves are on/off circuit components that allow free flow from the inlet (port 2) to the outlet (port 1) and block flow in the opposite direction. The manufacturing quality of this hydraulic check valve is compared to SUN CXCD; the function of this hydraulic check valve is benchmarking against SUN CXCD; the performance of this hydraulic check valve is benchmarking against SUN CXCD. In 2022, a German customer ordered this valve from AAK for 3 times. AAK hydraulic check valve 2 major advantages: 1. Low leakage, internal leakage 1 drop/min. 2. 3 key elements benchmark SUN, but the price is less than 70% of SUN. Technical parameters of AAK E-CXCD Hydraulic Check Valve: Maximum Operating Pressure: 350 bar (5000 psi) Capacity: 15 gpm (60L/min) Internal Leakage: 1 drops/min. Cavity: T-13A AAK hydraulic check valve, 3 key elements benchmark SUN CXCD, you can also give it a try. AAK HYDRAULIC VALVES (604) 2023-06-12 https://www.aakindustry.com/info , -detail/check-valves-aak604

How do hydraulic manifold manufacturers chat with new customers? If hydraulic manifold manufacturers can't even chat, how can they do the business of hydraulic manifolds? Whether it's a new customer at the exhibition or a first online inquiry. I remember one exhibition where the stalls of hydraulic manifold manufacturer AAK and Jiangsu Hengli were on the same aisle and diagonally opposite each other. A young girl from hydraulic manifold manufacturer AAK, who has been working for 3 years, used 5 sentences to secure an end customer. Currently, this customer purchases from hydraulic manifold manufacturer AAK every year. It is very important for hydraulic manifold manufacturers to learn how to speak up when cultivating sales, especially at exhibitions. At that exhibition, a buyer from the United States, a middle-aged person with a sense of humor, and the young girl from hydraulic manifold manufacturer AAK saw him spend more than half an hour at the Hengli booth across the street. At this point, most hydraulic manifold manufacturers' sales would say, 'You've been talking at the opposite booth for a long time, do you want to buy Hengli? Take a look at our AAK hydraulic manifolds.’ which will kill the conversation. So, what did hydraulic manifold manufacturer AAK say in their first sentence when we met this customer? Speaking must understand human nature. Let's start by praising. The first sentence of hydraulic manifold manufacturer AAK: Sir, buy Hengli, you are really very professional. The second sentence, most hydraulic manifold manufacturers' sales will say: How many years have you been purchasing hydraulic manifolds? This is a good question, but it is a question that can only be asked once we are familiar with each other. The second sentence from hydraulic manifold manufacturer AAK: Hengli is a big brand with many hydraulic categories. After the other party heard it, they were very happy. It indirectly proved that the buyer had vision. The third sentence of hydraulic manifold manufacturer AAK: but in Ningbo, the hometown of hydraulics in China, buyers are more willing to purchase AAK's hydraulic manifolds. The fourth sentence of hydraulic manifold manufacturer AAK: However, sir, AAK's hydraulic manifold will be slightly more expensive, and AAK only focuses on the production of hydraulic manifolds and valves. The fifth sentence is about the closing battle. If you make a mistake, the client will leave. So, how do we end up with the last sentence? Most hydraulic manifold manufacturers' sales would say, 'Buy AAK, give it a try, it's not wrong.'. If we say that, the new customer will become a zombie customer. The fifth sentence from hydraulic manifold manufacturer AAK: Sir, why don't you take a look at the manifolds of Hengli first? Hydraulic manifold manufacturer AAK, finally launched the customer, don't say, do you want to give it a try? Why push him out? Imagine how a middle-aged man would react to the language of a teenage girl, and he would think how expensive the hydraulic manifold of AAK is? The sales of hydraulic manifold manufacturers, whether online or offline, must learn to speak well. You should know that the greatest power of communication is to make the other party fall in love with you within 3 seconds. This is the greatest power of communication, and if you cannot achieve this, you will not be able to sell anything. Hydraulic manifold manufacturer AAK, is user-friendly, thoughtful, and good at chatting. AAK HYDRAULIC CARTRIDGE VALVES (712) 2023-11-11 https://www.aakindustry.com/info , -detail/hydraulic-manifold-manufacturers- aak71 , 2

Kaniel is from a hydraulic equipment company in Brazil. At the beginning of this year, their customer wanted to customize an automatic small excavator and needed to purchase a hydraulic direct acting cartridge relief valve. Kaniel found a local hydraulic cartridge relief valve manufacturer for samples, and the equipment commissioning was smooth. After 1 month of use, the customer felt that the hydraulic system was lagging behind and needed to be optimized. The engineer asked Kaniel to communicate with the supplier, but there was no solution. Kaniel also contacted more than 10 hydraulic cartridge valve manufacturers, but it was fruitless. Kaniel was worried. Kaniel noticed AAK website on Google and left a message: Can you optimize the hydraulic cartridge direct acting relief valve to improve the lag of the hydraulic system? After the communication based on his system schematic diagram, combined with the original hydraulic cartridge relief valve sample anatomy, AAK engineers found the problem. By optimizing the structure and adjusting the functions of the hydraulic direct acting cartridge relief valve, and integrating the piston chamber, piston and one-way valve in the hydraulic system into the hydraulic direct acting cartridge relief valve, customers' complaints may be resolved. Kaniel paid the development cost with some doubts and waited for AAK's samples. After 50 days, AAK sent 8 samples of hydraulic direct acting cartridge relief valve. Yesterday, Kaniel informed us by email that the customer has been using the excavator for 3 months, but the original system is no longer sluggish. The next step is to place the annual order. I was asked to make production planning in the workshop in advance. I felt that there would be a big order for the hydraulic direct acting cartridge relief valve. AAK engineer optimized the original hydraulic direct acting cartridge relief valve from 3 aspects. 1. The front end of the main valve spool of the hydraulic cartridge relief valve is equipped with a one-way valve spool, a one-way valve spring and a spring seat. The one-way valve spool is provided with a damping hole. The main valve spool and the main valve spool guide cage are put into the lower valve cage, and the main valve spool spring and adjusting gasket are installed between them. The upper valve cage is connected with the lower valve cage, and the main valve spool guide cage is limited. 2. The lower valve cage of the hydraulic cartridge relief valve is provided with a front pressure port and two side pressure ports. Under the action of the main valve spool spring, the pressure port at the front end of the main valve spool forms a poppet seal. 3. The upper valve cage of the hydraulic cartridge relief valve is equipped with a piston. The screw plug blocks the end of the upper valve cage. The piston forms a piston cavity with the upper valve cage, the main valve spool guide cage, the main valve spool and the one-way valve spool. The optimized structure of the hydraulic direct acting cartridge relief valve realizes the control of secondary pressure at the same oil port, and also realizes the integration of piston chamber, piston and one-way valve. The system has a compact structure, simplified oil circuit and quick response. AAK hydraulic direct acting cartridge relief valve is multifunctional and agile. You can also try one small order! https://www.aakindustry.com/info-det , ail/relief-valves-aak443

Recently, I received the second re-order of a hydraulic pressure reducing valve from French client Chinning. I still remember when I first met Chinning in 2020, Chinning purchased hydraulic pressure reducing valves in a hydraulic valve factory and encountered quality complaints from her customers. The hydraulic pressure reducing valve was deformed in less than 3 months, and some valve spools and valve sleeves were seriously worn. More and more customers began to return goods, and the old suppliers did not cooperate with her work. Chinning had a big headache at that time, and the boss kept putting pressure on her to find a hydraulic valve manufacturer with exquisite quality as soon as possible. Chinning did not find a new hydraulic valve manufacturer very smoothly. Because her hydraulic pressure reducing valve had a special use scenario and required high hardness of materials, it was unbearable for ordinary factories. At the same time, under the environmental protection policy of 2019, many previous heat treatment and processing factories were shut down, so the supply supporting system was disrupted, and the heat treatment and processing of many hydraulic valve manufacturers could not keep up. Chinning found us AAK HYDRAULIC VALVE on Google by chance. Chinning's first question message on our website was "how does AAK ensure the service life of hydraulic valve products"? We didn't answer directly, but asked her if the hydraulic valves you purchased had the problem of deformation and rapid wear. She also replied quite frankly that she should find a hydraulic valve manufacturer that paid attention to the service life of hydraulic valves in the fastest time. I sent her several samples of hydraulic pressure reducing valve and told her that different parts of our hydraulic pressure reducing valve have different material hardness standards, and some could reach about 50-55HRC or higher. There is even no problem with 65HCR with special requirements. The service life of hydraulic pressure reducing valve is our hard index. More than one week after we sent out the samples of hydraulic pressure reducing valve, we received Chinning's email, including the drawings of hydraulic pressure reducing valve and the hardness requirements for various components. She asked whether we could produce this hydraulic pressure reducing valve? I told her that his hydraulic pressure reducing valve is not difficult, but just the working scene is some special. As long as the heat treatment process is a little unique, it could 100% ensure her requirements. The long service life of hydraulic valve is the most critical. AAK HYDRAULIC VALVE has controlled a heat treatment plant for 10 years in order to do a good job in heat treatment. The quenching and tempering heat treatment of this hydraulic pressure reducing valve material is sensitive to temperature. If the temperature is too low, the hardness is not enough, and it is easy to deform. On the contrary, it will lead to fracture. Only our proprietary heat treatment process can accurately grasp the appropriate temperature under the operation of experienced masters. AAK can also select the corresponding heat treatment process and determine the temperature range according to the different operating conditions of the hydraulic pressure reducing valve to ensure the service life of the hydraulic pressure reducing valve. Maybe there is no second hydraulic valve manufacturer with this ability in Ningbo, and the service life of AAK hydraulic pressure reducing valve exceeds 90% of its peers. The service life of AAK hydraulic pressure reducing valve is exquisite. You can also try a small order. https://www.aakindustry.com/