Hydraulic Directional Valves Brand Hydraulics Suppliers and Manufacturers

Yesterday, I received a repeat order for a hydraulic sequence valve from . The first order of this hydraulic sequence valve was placed 3 years ago. Before, I wondered why this hydraulic sequence valve had not been repurchased, thinking that it had been switched back to the United States for production. I really didn't expect to receive the repeat order after 3 years, and the quantity was more than 3 times that before. 3 years ago, company had a newly designed hydraulic pump to be produced in branch, and the pump needed hydraulic sequence valve. If purchasing the hydraulic sequence valve in the , it was expected to take 3 months or more. His owner wanted to try purchasing in , hoping to save half the time. According to the owner instructions, spent 3 days looking for hydraulic valve factories, selected 5 hydraulic valve manufacturers from more than 10 as their hydraulic sequence valve suppliers, and asked them to send reference samples of hydraulic sequence valves to Vietnam for testing. happily reported the purchasing status to his owner, who was satisfied. After received these hydraulic sequence valve samples, he arranged the technical department to match the working conditions for testing, but the results were poor. The matching clearance between the valve body and the valve spool of some hydraulic sequence valves was small. After an additional 20 pressurization, the valve hole was deformed and the valve spool would be stuck. All 5 hydraulic valve manufacturers said that after additional pressurization, they were not able to ensure the quality of hydraulic sequence valve. Time has been wasted for more than 2 weeks. At this time, if returning back to the United States to purchase hydraulic sequence valves, he would be scolded by his owner. to worry. When browsed , he felt that hydraulic valve was some different from the other hydraulic valve manufacturers. He emailed to inquire about the hydraulic sequence valve and frankly told us the problems he had encountered with Chinese hydraulic valve manufacturers. After several rounds of communication and technical team analysis of his drawings, we truthfully told him that existing hydraulic sequence valve samples could not meet his pressurization test. It takes 2 weeks to proofing according to the drawing. If the sample of the hydraulic sequence valve is approved and it takes 25 30 days to produce his order for the hydraulic sequence valve, calculates the time. If the sample of hydraulic sequence valve is successful, the time saving meets the requirements of the owner. If it is not successful, it will waste another 2 weeks. It seems that he has no choice. Somehow, feels that can give him hope and hopes that we can send samples as soon as possible.

TRM15S series flow sharing control valve Size: 12 Max. pressure: -on the pump side 320 bar -on the actuator side 350 bar Max. inlet flow: 120 L/min Max. flow of directional valve: 100L/min High pressure type Features Sandwich plate design, flexible combination according to demand possible Load pressure compensation, load pressure-indepedent flow distribution Hydraulic pilot control, electric proportional (or switch) control Limitation of system maximum pressure via LS pressure relief valve Small pressure loss, low energy consumption Precise control, good fretting, comfortable handling High repetition accuracy, small hysteresis Fields of application Excavator Loader Forklift Drilling machinery Crane

Hydraulic prop is generally composed of piston, piston rod, cylinder block three parts. Because the support work, the column bearing capacity is large, and the drop column force is small, so the piston rod diameter is larger, often use hollow structure, in order to ensure sufficient stiffness of the piston is generally y sealing ring, copper ring guide, cylinder bottom welding. The cylinder block and the cylinder head are connected by steel wire, thread or clasp. In order to prevent the external coal seam and other stolen goods into the cylinder block, the guide sleeve should be equipped with a dustproof ring. For the single telescopic column, in order to expand the support height of the hydraulic support, can use mechanical extension rod, the head structure of the column is spherical, and the connection between the top beam or the base with pin shaft or block fixed, in order to make the column in the work by a certain adaptability. The liquid supply method of hydraulic prop consists of two ways: internal liquid supply and external liquid supply. In addition to the double telescopic column with internal liquid supply mode, the single telescopic prop is mostly external liquid supply mode, which is simple in structure, convenient in processing and maintenance.

HOSTON press brakes offer exceptional performance and manufacturing solutions tailored to the Customer needs. The machine tool HOSTON have been manufactured with the ability of listening and understand customer needs. The technological innovation and the continuous search for reliable and indestructible components make these machines for sheet metal working able to improve time business and production costs. Safety in the workplace is invaluable for us. We manufacture SAFE machines! Operators can work with confidence thanks to the vehicle control systems, the worldwide leader in safety. The wide range of press brakes HOSTON varies by working force, size and production capacity.

Micro silica (silica fume), silica, fly ash, pozzolano, ggbfs and white cement, other cementatious materials and factory/plants specialized spare parts & equipments, automation & switchgear, drives & transmission spares, instrumentation & pump, pneumatic & hydraulic spares, valves & actuators, mechanical parts, high carbon ferro chrome, foundry pig iron, iron ore concentrate, chromite ore, antimony ore, silicon metal 441 (powder), ferro silicon (fesi), iron ore pellet, copper concentrate.

1. Inner check valve: the check valve inside the valve body is to insure the hydraulic oil will not be returned. 2. Inner relief valve: the relief valve inside the valve body is able to adjust the hydraulic system working pressure. 3. Oil way: parallel circuit, with power beyond. 4. Control way: manual, air, air&electric, micro-switch, electric&hydraulic control. 5.Valve construction: monoblock construction, 1-8 levers are available to assembled as you requests. 6.Spool function: o, a, y , p etc. 7. Flow 40 l/min with pressure 160bar, 200bar, 315bar 8.Spool returning type with t (spring return) and w (ball locking) 9. Joining port: l (screw connection) 10 .Nominal diameter: g1/2; g3/8; m18*1.5

Hangzhou top hydraulic co., ltd is a oem professional manufactory of custom made made hydraulic power unit and hydraulic cylinder, also have hydraulic valves. We have yuken stand and rexroth stand oem factory solenoid valves. Pls send your request to tophydraulic at 163 doc com Carton box

Hydraulic fluid applied High pressure 500bar Diameter 6mm~25mm Size npt/bsp 1/4"~2" Steel ball & bosy Nbr/fpm seals. Plywood case 50*36*21cm

Hydraulic We are the manufacturer of hydraulic pumps, valves, check valves, 3 way valves, hydraulic and pneumatic fittings. Also distributor of a hydraulic hose company in turkey.

HIGINSON company plans to develop a new plunger hydraulic cylinder, which needs to purchase the supporting hydraulic directional control valves. Helen, who had just joined the company, stumbled when purchasing the hydraulic directional control valves. Helen has no hydraulic valve supplier and can only purchase from the original hydraulic valve manufacturer of the company. Half a month later, the engineer and technician of the company installed the hydraulic directional control valves purchased by Helen for commissioning, and the plunger hydraulic cylinder dropped intermittently with vibration and noise. The technician pointed out that the hydraulic directional control valves needed to be replaced. Helen contacted the original manufacturer of hydraulic directional control valve. Per the manufacturer, the delivered hydraulic directional control valves met the requirements of Helen's parameters, and the accuracy also fully met the standard. As a novice, Helen was helpless, and the technician did not specifically say why to replace the hydraulic direction control valves. She tried to contact the new hydraulic directional control valve manufacturer to solve the problem. Helen left a message on AAK website: why is the plunger hydraulic cylinder equipped with hydraulic directional control valve noisy? At this moment, we can't tell the reason. After communicating with Helen, I learned the process of purchasing this hydraulic directional control valve and the judgment of technician in their company. AAK engineers are not 100% sure that where the problem is according to the hydraulic directional control valve drawings sent by Helen, the shipment sample of the original manufacturer and the video of their technician's machine test. We are thinking if Helen, as a novice, has mistaken the type of hydraulic directional control valve? The hydraulic directional control valves can be divided into internal leakage type and external leakage type. Combined with the working conditions, this plunger hydraulic cylinder just reverses the oil outlet chamber, and the back pressure is high. If the internal leakage hydraulic directional control valve is used, there will be abnormal phenomena such as vibration or noise. We told Helen our thinking. She really did not note to the original manufacturer that the hydraulic directional control valve is internal leakage or external leakage. I told her that AAK has ready-made samples of the external leakage hydraulic directional control valve. It is recommended to test the machine with AAK hydraulic directional control valve to see if there is still vibration or abnormal noise. A week later, Helen sent an email saying that AAK hydraulic directional control valve was installed and there was no abnormality in the test run.

AAK uses Rockwell hardness tester to check the hardness of each part of the hydraulic valve, so that the hardness of each heat-treated alloy steel is "exposed". Nearly 90% of domestic hydraulic valve manufacturers are not equipped with this Rockwell hardness tester with the highest accuracy. An Italian hydraulic valve customer, who disliked the expensive price of AAK, purchased the high hardness hydraulic directional valves from another hydraulic valve manufacturer but suffered loss from poor quality, he finally returned to AAK to place an order. Because of the common problem of unstable heat treatment in the industry, the hardness test of hydraulic valves with high requirements for stability is very important. Most hydraulic valve manufacturers can't grasp the details of hardness testing. They don't have high-precision hardness testing instruments, just checking the hardness by experience. They often put on-line production without knowing the hardness of materials is not up to standard due to human errors. Harvey is a hydraulic valve purchaser from Italy. In particular, there are many inquiries for hydraulic directional valves, and the hardness requirements for hydraulic directional valves are particularly high, with few requirements below 65HRC. Since last year, he has sent AAK inquiries for hydraulic directional valves every 2 weeks, all of which are 65-68HRC hardness indicators. Strangely, there were 10 inquiries for hydraulic directional valve, but no order was placed with AAK. Every time we followed, the reply we almost received was "the price is too high and will not be considered for the time being". We realized that this is not our customer. In June this year, Harvey sent an inquiry for the hydraulic directional valve with 68HRC hardness index, which is very similar to the 68HRC hydraulic directional valve inquired last year. We didn't quote the same day and intended to give up. The next day, he emailed again to ask whether his inquiry had been received. We replied that the AAK price doesn't meet your goal. We won't make an offer for the time being. Let's make friends. Harvey probably realized that AAK didn't want to waste time, he told us the truth frankly. There was a problem with the 68HRC hardness hydraulic directional valve he purchased from another hydraulic valve manufacturer. Strangely, the thickness measured in the shipping inspection link was up to standard. After the customer received the shipments of hydraulic directional valve, there were continuous complaints, all of which were due to the instability of the hydraulic system caused by unqualified hardness. From his description, I felt that there was something wrong with the testing instrument and asked him to send samples to us for testing. He was surprised when he learned from the other hydraulic valve manufacturer that there was no test report for 68HRC hardness.

The hydraulic directional valves produced by AAK adopts its own proprietary quenching and tempering heat treatment process, which can greatly improve the strength of the hydraulic directional valve, avoid deformation and wear of the hydraulic directional valve in the long-term use process, and significantly increase the service life. Perhaps there is no second comparable manufacturer in Ningbo like this. At most, 10% of the domestic hydraulic valve peers can compete. In order to win orders, 50% of the hydraulic valve manufacturers do not do any heat treatment to the materials for the hydraulic parts. Although some hydraulic valve manufacturers insist on heat treatment, they can only be outsourced processing due to without equipment. There are also 20% of hydraulic valve manufacturers, who do not have a fixed outsourced processing place, so it is impossible to ensure the heat treatment quality, not to mention the stability. Due to these common problems in the hydraulic valve industry, the hydraulic valve will show many problems after being used for a period of time, such as product deformation and wear. Once the hydraulic valve is deformed, it will easily to be blocked and the service life of the hydraulic valve will be greatly shorten. 5 months ago, Mike, a hydraulic valve customer in the United States, came to me. He had been confused, since 2019, there have been continuous customer complaints about the hydraulic directional valve he purchased. All the complaints are that after the hydraulic directional valve has been used for a period of time, some hydraulic directional valves are deformed and some hydraulic directional valves are worn quickly. Obviously, there is a problem with the heat treatment of the materials used in the hydraulic directional valve. Since 2019, due to the environmental protection policy, the domestic heat treatment plants have been vigorously rectified, and there are much fewer processing places. 50% of the hydraulic valve manufacturers do not have a place to do heat treatment to the raw materials. Even if heat treatment is done, 20% of the hydraulic valve manufacturers have to change the processing places for each external processing. I sent him several samples of AAK hydraulic directional valve and told him that the material hardness of our hydraulic directional valve has not changed, which always can reach about 50-55HRC or higher, and there is no problem with the special requirement of 65HRC. He didn't know that the service life of hydraulic valve is our hard index. 3 months ago, Mike issued a test order for the hydraulic directional valve. Each different part of the hydraulic directional valve is marked with different hardness requirements. He also wants to know how AAK ensures the service life of the hydraulic directional valve.

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.

At AAK monthly hydraulic valve summary meeting, my first requirement for hydraulic valve technicians and workshop directors in various posts is that the quality of hydraulic valves needs to be good, and must be good. At least, our hydraulic valves must be benchmarked with domestic first-line hydraulic brands. Benchmarking or surpassing the first-line brands of international hydraulic valves is our mission. Whoever messes up the job will lose his job. If a product with poor quality is "packaged" into a great product, the heart will be extremely distorted and uncomfortable, which will be condemned by God. Especially in manufacturing, this is life-threatening. I think the only customer-centered requirement for the production of hydraulic valves is quality. Within the scope of my manufacturing ability, to make the quality of hydraulic valves to the extreme that I can do is to really focus on customers, no any other rhetoric. I have another understanding of the quality of hydraulic valves, that is, not excessive, because excessive quality is also a waste. For example, if the market needs 90 points of hydraulic valve, you can achieve 95 points. If you have to do 99 points of hydraulic valves, this may be excessive. Now the internal involution of hydraulic valves is very strong. Most hydraulic valve manufacturers are thinking about how to reduce costs and prices, and finally compete with low prices. This is the routine of most small bosses. Everyone focuses on the crazy competition on the same track without thinking about how to make a high-end market with high quality in the positioning of high-quality hydraulic valves. I think this is the sadness of the hydraulic valve manufacturing industry. Because of the impact of the epidemic, most hydraulic valve manufacturers choose to tighten, even the cost of hydraulic valve technician training has been tightened, thinking that hundreds of thousands or millions will be saved. In fact, this is short-sighted. Once the epidemic is over, all markets will rebound explosively. AAK hydraulic valves adhere to the monthly quality meeting, technician training, quarterly R & D expenses and annual equipment upgrading expenses. I think this is wise and necessary. AAK hydraulic valve is to concentrate all elements and use the sharp knife of quality to be the first in subdividing the vertical field of hydraulic valves. It is not only the first, but also the only. This is my purpose of producing hydraulic valves. Hydraulic valve manufacturers must not focus on multitasking. Focus on only one may not quickly open the market quickly, not to mention focus on 2 or 3 tasks, which is a fatal mistake. AAK hydraulic valves, in terms of quality, should not only be the first, but also the only. You are welcome to have a small try. AAK HYDRAULIC VALVES (212) 2022-04-30

At AAK monthly hydraulic valve summary meeting, my first requirement for hydraulic valve technicians and workshop directors in various posts is that the quality of hydraulic valves needs to be good, and must be good. At least, our hydraulic valves must be benchmarked with domestic first-line hydraulic brands. Benchmarking or surpassing the first-line brands of international hydraulic valves is our mission. Whoever messes up the job will lose his job. If a product with poor quality is "packaged" into a great product, the heart will be extremely distorted and uncomfortable, which will be condemned by God. Especially in manufacturing, this is life-threatening. I think the only customer-centered requirement for the production of hydraulic valves is quality. Within the scope of my manufacturing ability, to make the quality of hydraulic valves to the extreme that I can do is to really focus on customers, no any other rhetoric. I have another understanding of the quality of hydraulic valves, that is, not excessive, because excessive quality is also a waste. For example, if the market needs 90 points of hydraulic valve, you can achieve 95 points. If you have to do 99 points of hydraulic valves, this may be excessive. Now the internal involution of hydraulic valves is very strong. Most hydraulic valve manufacturers are thinking about how to reduce costs and prices, and finally compete with low prices. This is the routine of most small bosses. Everyone focuses on the crazy competition on the same track without thinking about how to make a high-end market with high quality in the positioning of high-quality hydraulic valves. I think this is the sadness of the hydraulic valve manufacturing industry. Because of the impact of the epidemic, most hydraulic valve manufacturers choose to tighten, even the cost of hydraulic valve technician training has been tightened, thinking that hundreds of thousands or millions will be saved. In fact, this is short-sighted. Once the epidemic is over, all markets will rebound explosively. AAK hydraulic valves adhere to the monthly quality meeting, technician training, quarterly R & D expenses and annual equipment upgrading expenses. I think this is wise and necessary. AAK hydraulic valve is to concentrate all elements and use the sharp knife of quality to be the first in subdividing the vertical field of hydraulic valves. It is not only the first, but also the only. This is my purpose of producing hydraulic valves. Hydraulic valve manufacturers must not focus on multitasking. Focus on only one may not quickly open the market quickly, not to mention focus on 2 or 3 tasks, which is a fatal mistake. AAK hydraulic valves, in terms of quality, should not only be the first, but also the only. You are welcome to have a small try. AAK HYDRAULIC VALVES (212) 2022-04-30

With hydraulic manifolds, the energy consumption of the original unsalable equipment not only decreased by 20%, but also became hot seller is from a agricultural machinery equipment company, mainly responsible for purchasing hydraulic components. In the second half of last year, the sales of one of their rotary tillers were poor. Users reported that the equipment was insensitive and inefficient, and the fuel consumption was 10% higher than that of the same type of equipment. The boss realized that there were hidden dangers in the hydraulic manifolds and asked the engineers to check the causes. However, more than 1 month had passed and there was no practicable plan. The boss was worried and asked to contact the original hydraulic manifold manufacturer to see if they could provide technical support, but they were only good at producing hydraulic manifolds according to the drawings. Connor also asked all his manufacturers of hydraulic components, but none of them gave a plan. When reported these to his boss, he could only helplessly look at his boss shaking his head. the display and introduction of hydraulic manifolds, and left a message: what is the relationship between hydraulic equipment with high energy consumption and slow response and hydraulic manifolds I understood that Connor had a problem with hydraulic manifolds, but it was difficult to answer. After several communications, I learned that his boss was worried, and wanted to solve the problem that had plagued his company for nearly 3 months. According to the hydraulic manifold drawings and the video of rotary tiller work sent by engineers had discussion. The probability was that the hydraulic manifold design had hidden problems. From the analysis of hydraulic manifold and system schematic diagram, there were certain energy conflicts between the design of some oil circuits and the selection of hydraulic valves. could redesign the hydraulic manifold to match their equipment. also readily paid the development cost. 1 month later, sent the hydraulic manifold samples. 2 months later, said that after their rotary tiller was installed with hydraulic manifolds, it was responsive during operation. The operation was more than 20% higher than before, and the fuel consumption was also reduced by 20%. The customer feedback was good, and more and more customers came to try it out. told me privately that he had seen his boss's long lost smile. The boss paid more and more attention to him. He will be promoted to the management next month. hydraulic manifold has 3 advantages 1. engineers have experience in hydraulic manifold design, especially in oil circuit design. Ensure flow distribution as required, eliminate bypass throttling loss and reduce energy loss.

Hydraulic Support Traction-direction Adjustable Transporter For Coal Mining Under The

Hydraulic