Tools & Hardware

The hydraulic valve blocks designed and produced by AAK not only has high reliability and small pressure loss to ensure that there is no oil running between the channels, but also has compact structure, small occupied space, simple oil circuit and easy pipe layout, so as to ensure the high efficiency requirements of different actions of various actuator elements. The valve block can control the valve, which is easy to adjust and operate. AAK hydraulic valve block was designed and proofed successfully at one time within 1 month, which impressed the engineers of Samhydraulik company. The vast majority of hydraulic valve block manufacturers blindly proofed according to customer drawings, ignored working conditions, and did not understand the internal structure and working principle of hydraulic valve block. It is easy to cause hidden dangers in the hydraulic system, and the problem cannot be found. Justin left a message on AAK website (www.aakindustry.com) asking is the power insensitivity of the hydraulic system related to the hydraulic valve block? We replied that this is difficult to judge because it is a system problem that needs to be checked one by one. Justin emailed us the next day then we understood why he left such a message. Justin is from Samhydraulik in Italy. The power unit of a hydraulic system developed by his company needs a hydraulic valve block. Their engineers mentioned that the sensitivity of the power unit is the key and that all components need to cooperate closely. Justin thought that as long as the hydraulic valve block manufacturer strictly controlled the accuracy according to the drawings, it could be easily done. After the hydraulic valve block is finished, it is installed to test the hydraulic power unit. After the oil pump is started, the instantaneous pressure supply at the oil outlet of the power unit does not come up, and it just supply normal pressure after a few minutes. After checking each component one by one, it is suspected that there are hidden dangers in the hydraulic valve block. After detecting the hydraulic valve block, there is no problem in the oil passage and channel of the hydraulic valve block. Justin contacted the original hydraulic valve block manufacturer for analysis and solution. The manufacturer said that the hydraulic valve block was completely produced in accordance with the drawings of Samhydraulik company, and the accuracy was within the required range, and the reason for problem was unknown. Justin contacted several other hydraulic valve block manufacturers, they all said that they could match the drawings, but not sure about the problems of the hydraulic valve blocks. We asked Justin to tell us the working condition of the whole hydraulic system and the picture of the oil circuit running direction of the hydraulic valve blocks of the original manufacturer. AAK engineers have ideas after 3 aspects of comparative analysis. We told Justin that if your engineer determines that the problem lies in the hydraulic valve block, we will send you two samples of our hydraulic valve blocks to test your hydraulic system. Three days after receiving the samples, Justin informed that the instantaneous pressure supply at the oil outlet of the power unit was normal with AAK hydraulic valve blocks. Their engineers were surprised that AAK completed the design of the hydraulic valve block within 30 days and successfully proofed at one time. The problem of the hydraulic valve block lies in the high integration of the valve block design and the tortuous oil circuit, which will lead to high pressure loss and slow rise of system pressure. AAK engineers improved the design of the hydraulic valve block. The newly designed hydraulic valve block has no oil running between the channels, compact structure, small occupied space and optimized oil circuit piping, which not only has high reliability but also small pressure loss. AAK chief engineer has more than 20 years of technical experience. He is good at cross-sectional view, measurement and perspective of hydraulic valve block design system, multi angle observation of design process, hole connectivity, oil circuit optimization, and the escort of MDTools 3D solid design and virtual manufacturing software and high-precision CNC machining center imported from Switzerland. Many manufacturers do not know the problem of the hydraulic valve block. AAK can improve the design and make a successful proofing at one time within 30 days. I think this is the difference between AAK hydraulic valve block and its peers. AAK hydraulic valve block, not blindly based on drawings, but focused on the working principle, you are welcome to have a small try. https://www.aakindustry.com/info-detail/hy , draulic-valve-blocks-aak160

Mathias, a Dutch hydraulic customer, urgently needed to purchase a batch of hydraulic valve blocks matching the German brand from China at the end of last year. He asked more than 10 old hydraulic valve block manufacturers. They all said that the accuracy of this hydraulic valve block was too high for their technology and equipment. Mathias had a hunch that nine times out of ten, the order for this hydraulic valve block would fail, because he knew that most hydraulic valve manufacturers just have CNC machine tools. But his boss attached great importance to this customer and asked him to implement the hydraulic valve block sample within 30 days. Within a week, Mathias consulted nearly 20 hydraulic valve block factories online and offline, almost all of them just have CNC lathes. Only two of them said that they have Japanese high- precision CNC machine tools. They can try to make samples but are not 100% sure. Two weeks later, Mathias tested the hydraulic valve block samples from 2 factories, and there was still a parameter error of 10% - 13%. Mathias suggested the factory re-make samples, and both factories surrendered. Time has been wasted for 3 weeks. It's only 2 weeks from the deadline required by the boss. Mathias is anxious and has no direction. While chatting with old friend Andy, Mathias revealed his dilemma. Andy is a veteran in the hydraulic valve industry and has cooperated with AAK hydraulic valve for 5 consecutive years. Andy told Mathias that the accuracy of this hydraulic valve block requires not only high-precision machine tools, but also old operators who understand the equipment. Most hydraulic valve block manufacturers are difficult to meet these two requirements at the same time. He suggested Mathias try AAK, who likes to overtime difficulties on high-precision hydraulic valves, and most operators have more than 5 years of experience in operating imported equipment. The subject of Mathias's first email to AAK hydraulic valve was that I was introduced by Andy. He said that the accuracy of this hydraulic valve block can only be produced in AAK. Opening his hydraulic valve block drawing, AAK engineers have 90% confidence. I replied to him directly that if it goes well, we can send the hydraulic valve block samples before the Chinese New Year holiday. Jan 28th is our last working day before CNY and the last day to send samples. Our team was great to send the samples on Jan 28th. When we came back from the Spring Festival holiday, we received an email from Mathias. Their technical team tested the accuracy of AAK hydraulic valve blocks. Each parameter met the accuracy required by the drawing, and almost every parameter was 30% higher than that of other hydraulic valve manufacturers. AAK is also the only hydraulic valve block manufacturer that can match the German brand among all the hydraulic valve manufacturers he contacted. He can finally make a report to his boss. Next, the order confirmation process of hydraulic valve blocks is very smooth. Mathias understood why Andy is optimistic that AAK can achieve the accuracy of this hydraulic valve block. AAK introduced Demage five axis machining center as early as 2 years ago. The allowable rotation range is 115 ° (- 5 ° / + 110 °), which can carry out negative angle machining up to 20 ° and high- precision machining, which can not be achieved by many imported machine tools. At the same time, the torque can reach 1800Nm, the Y-axis stroke can be increased from 1250 to 1600mm, and the maximum speed of milling spindle can reach 8000r/min, while the maximum of conventional CNC can only reach about 5000r/min. As long as the operator is familiar with the performance of the equipment, the hydraulic valve block similar complicated to that of Mathias is successfully proofed at one time. AAK hydraulic valve block is praised by Mathias that it is the only one that can match the German brand. Give it a try! https://www.aakindustry.com/info-detai , l/hydraulic-valve-blocks-aak156

Some customers choose to transport hydraulic directional control valves exported to the Russian market by train, which may cause collisions due to multiple turnover shipments in inland China. Anek from Russia has encountered a problem with China. In the second half of last year, Anek wanted to purchase a batch of hydraulic directional control valves, which is equivalent to the HydraForce standard part LS08-30. There are no less than 5 hydraulic valve manufacturers in Ningbo China that have the program for this hydraulic directional control valve. Although AAK received Anek's inquiry, he chose the hydraulic directional control valve manufacturer with lowest price to place an order. The order was finished in less than 1 month, but it took nearly 2 months on the road from Ningbo to Moscow. After receiving the shipment, Anek was dumbfounded. The outer box was cracked and deformed, and some hydraulic directional control valves had fallen out of the outer box. What's even more frustrating was that due to the collision of the hydraulic directional control valves to each other, some threads had also been damaged. The manufacturer for these hydraulic directional control valves indicated that he cannot bear responsibility for any damage caused during transportation. Anek sent an email asking me to produce 160 pcs of LS08-30 hydraulic directional control valves as soon as possible, and ship them by air for emergency assistance. After communication, it was learned that he encountered packaging problems with the original hydraulic valve manufacturer. I jokingly said that you have been purchasing from AAK for 4 years and have never encountered any problems with packaging, right? He just sent me a “like” expression and an “awkward” expression. In the manufacturing of hydraulic directional control valves, small details often determine the customer's experience. AAK checks each hydraulic directional control valve separately before entering the packaging workshop for packaging. Firstly, put the hydraulic directional control valve into a bubble bag, it just likes to wear a piece of underwear to prevent scratches. Then put it into a 3ply hard corrugated box with the fitted size, which not only provides an additional layer of protection but also fixes the hydraulic directional control valve in place. Then put 24 pcs, or 36 pcs, or 48 pcs into a 5ply corrugated cardboard boxes with fragile and easy to handle markings, and then secured with “#" shaped packaging tape. For those exceeding 10KGS, wooden boxes will be used for protection. 1 reminder, 4 protections, as long as there is no malicious human damage, the hydraulic directional control valves are 100% collision free. But most hydraulic valve manufacturers in China have no experience in dealing with exports, and the root cause is that they have become accustomed to the domestic market in China. Using the Cognitive inertia of domestic sales to export, it harms customers and also themselves. AAK hydraulic directional control valve, 1 reminder, 4 protections, 100% collision free, you can also give it a try! AAK HYDRAULIC VALVES (622) 2023-07-08 https://www.aakindustry.com/info , -detail/hydraulic-directional-control-valves- a , ak622

Henry is a purchaser of a hydraulic power unit manufacturer in the United States. He almost lost his job when he purchased the hydraulic pressure relief valves in the first time after just joining the company. AAK high-precision hydraulic pressure relief valves saved the job for him. Last October, one of their African customers customized a batch of hydraulic power unit equipment for use in African mining bases. The requirements of the equipment for the hydraulic pressure relief valves used are that there is no abnormality within 1 year. Henry contacted more than 10 hydraulic pressure relief valve manufacturers and screened 4 samples from each of 4 factories. A month later, the engineering department debugged these hydraulic pressure relief valves. Almost all hydraulic pressure relief valves from every factory have unstable hydraulic system pressure, but only the proportion is different. At first, the engineer thought it was due to the installation of hydraulic pressure relief valves or the problem of oil quality. After several commissioning, it was found that the outlet pressure of hydraulic pressure relief valves was almost equal to the inlet pressure. After disassembling the hydraulic pressure relief valves, it is found that the geometric tolerance is out of tolerance due to the accuracy of the main valve spool and valve hole. After knowing this, the boss thought that Henry had a problem on the communication with the hydraulic pressure relief valve manufacturers and asked him to solve the purchasing of the hydraulic pressure relief valves with the manufacturers within 4 weeks. Henry has made two rounds of screening for hydraulic pressure relief valve manufacturers and emphasized the working conditions, but still no one can achieve that every hydraulic pressure relief valve has no problem. He felt that he was cheated. The water in the hydraulic pressure relief valve industry was too deep. Henry found AAK hydraulic valve on Google and left a message on our website: Can AAK get the geometric tolerance of each hydraulic pressure relief valve consistent? After several rounds of e-mail communications, we learned about what happened when he purchased hydraulic pressure relief valves for the first time. We can only comfort him that he was misled by hydraulic pressure relief valve manufacturers due to lack of experience. He can test the samples of AAK hydraulic pressure relief valves. Three weeks later, AAK sent Henry 5 samples of hydraulic pressure relief valves. Their engineer tested each sample 3 times, and the hydraulic power unit equipment was normal. The boss praised his emergency ability. Now Henry doesn't have to worry about losing his job. We told Henry that according to the working conditions and drawings of this hydraulic pressure relief valve, the accuracy of each hydraulic pressure relief valve is required to meet the standard and be stable, which needs to meet two points: one is the selection of materials, the other is the control of machining accuracy and the error correction of accuracy in machining, which is the key. AAK use the GILDEMEISTER turn milling compound machining center imported from Germany. During the machining process of various parts of the valve body, the central encoder can be used to measure the position and compensate the errors caused by tool wear. The worktable adopts the static pressure guide rail with pure static pressure load, which has strong bearing capacity. At the same time, it has the c-axis position detection technology with double reading heads that is not available in general equipment. The positioning accuracy of c-axis can reach 5 arc seconds, while at present, most hydraulic pressure relief valve manufacturers do not have this kind of equipment. AAK hydraulic pressure relief valves are produced by high-precision advanced equipment. Welcome to have a small try! https://www.aakindustry.com/

Devante is from a hydraulic equipment company in Spain. He has been purchasing for 8 years and cooperating with AAK for 3 years. In June last year, a batch of hydraulic cylinders of their company were complained of telescoping jitter. During after- sales service, it was judged that the hydraulic cartridge relief valve of the hydraulic system was abnormal. After disassembly, it was found that the spring elasticity in the valve body was out of function. The manufacturer of the hydraulic cartridge relief valve thought that the high working frequency of oil cylinder caused spring failure. It could be replaced for free for good cooperation, but the complaints were increasing later. The boss was not satisfied with the hydraulic cartridge relief valves purchased by Devante this time, and Devante had a great pressure. At the beginning of last year, their engineer required the manufacturing quality of the hydraulic cartridge relief valve for the hydraulic cylinder they developed, to benchmark HydraForce. Devante believed that the function of this hydraulic cartridge relief valve is relatively conventional, so he chose a hydraulic cartridge relief valve manufacturer with competitive price. Unexpectedly, the service life would be exhausted in less than 6 months. Devante regreted choosing the wrong hydraulic cartridge valve manufacturer. He redefined the quality of this hydraulic cartridge relief valve: no repair within 1 year, and the service life of the built-in spring shall not be less than 18 months. In 1 week, only 2 hydraulic relief valve manufacturers accepted to try the samples, and AAK was one of them. 1 month later, the samples of hydraulic cartridge relief valves from 2 manufacturers were installed on different hydraulic cylinders, to PK directly. Last week, Devante emailed that the hydraulic cartridge relief valves of the cylinders had been replaced. In 1 year, there was no customer complaint about the hydraulic cylinder installed with AAK hydraulic cartridge relief valves, while the other one was just stuck in 1 year. Their engineer tested the built- in spring of AAK. After 1 year of high frequency work, its fatigue resistance was still like a new material. I replied that the difficulty of this hydraulic cartridge relief valve is just the fatigue resistance of the spring. As long as this is solved, you will have no worries about using it for 18 months. For the spring of this hydraulic cartridge relief valve, AAK uses German UP6 spring steel, which is optimized according to 60Si2Mn alloy steel. Its strength and elasticity can be fully suitable in military equipment. The fatigue resistance of the spring is more than 3 times that of other carbon steel springs, which is the core reason why the other manufacturer’s has been out of use in 1 year, while AAK's is worry free in 18 months. Although the cost of this spring is more than 2 times higher than that of other materials, even if the cost of the material is 3 to 5 times higher, the best one should be chosen. Things that are not good enough cannot be used by AAK, let alone given to users. AAK hydraulic cartridge relief valve, worry free in 18 months, welcome you to try a small order! https://www.aakindustry.com/info-det , ail/hydraulic-cartridge-relief-valves- aak393

This week, we’d like to introduce a Hydraulic Screw-in Solenoid Cartridge Valve equivalent to HydraForce standard part SV08-40. It is a solenoid-operated, 4 way, 2 position, direct-acting spool type, screw in hydraulic cartridge valve. The features of this cartridge valve: Continuous-duty rated coil. Hardened precision spool and cage for long life. Optional coil voltages and terminations. Efficient wet-armature construction. Cartridges are voltage interchangeable. All ports may be fully pressurized. Unitized, molded coil design. Manual override option. Optional waterproof E‑Coils rated up to IP69K. Compact size. A customer in Brazil placed a test order for 10 pcs last September, in 2022. After 12 months of testing, it proves that the function and performance of AAK hydraulic solenoid cartridge valve E-SV08-40 benchmarked the quality of HydraForce SV08-40. Today, we received their re-peat order for 500 pcs qty. AAK hydraulic screw-in solenoid cartridge valve 2 advantages: 1. Function and Performance benchmarking HydraForce 2. Its service life is 2 times that of its domestic peers Technical parameters of AAK E-SV08-40 Hydraulic Screw-in Solenoid Cartridge Valve: Max. Operating Pressure: 207 bar (3000 psi) Flow: 11.4 L Internal Leakage: ＜82ml/min at 207 bar (3000 psi) Temperature: - 30 to +100 °C (with Standard Buna N seals) Cavity: 08-4 Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties Fluid Viscosity Range: 7.4 to 420 cSt Till now, AAK E-SV08-40 hydraulic screw-in solenoid cartridge valve has been purchased by foreign customers from Russia, Brazil, Turkey and USA. You are welcome to try it out. AAK HYDRAULIC VALVES (734) 2023-12-11 https://www.aakindustry.com/info , -detail/solenoid-cartridge-valves-aak734

GRISH detonation polycrystalline diamond powder (PCD) is produced in a controlled explosion. Grains microscopic structure is similar with natural Carbonado. Compared with monocrystalline diamond, PCD has more cutting edges, resulting in the higher removal rate, with good self-sharpening proprieties. The structure will always open new sharp edges introduced by releasing an outer layer of dull crystallites. The polycrystalline diamond can give higher removal rate and lowest level of scratches. Thats why it is especially suitable for the high precision processing on super hard material. Features： 1.Higher toughness and better self-sharpening properties compared with monocrystalline diamond. 2. Higher removal rate, less scratches, more consistent polishing performance compared with monocrystalline diamond. 3.Long life and highyield. 4.High wear resistance and long service life.

Minimum Order: 10 long tons

GRISH lapping film is coated with precisely graded minerals (such as diamond, aluminum oxide, silicon carbide, silicon oxide, cerium oxide and so on) on the high strength polyester backing to provide a uniform, consistent finish. Available in 0.01-45 μm grades, with or without PSA (Pressure Sensitive Adhesive) backing. Features:    ·perfect grinding efficiency for surface's high-resolution with different precision demand ·Consistent finishing performance ·High durability and cost reduction ·Available for dry polishing and wet polishing

Minimum Order: 10 long tons

GRISH Monocrystalline Diamond powder is made of high quality diamond through crushing, shaping, grading and other processes. Monocrystalline Diamond powder has sharp edge and high hardness. Application: Metal mold, Gemstone, Ceramic, Optical glass & crystal Features： 1.Nanometer and submicron grits available. 2. Narrow particle sizes distribution resulting high lapping efficiency and less unexpected scratches. 3.High purity, metal impurity less than 100ppm.

Minimum Order: 10 long tons

GRISH Rough-surface Monocrystalline Diamond Powder, RCD for short, derived from monocrystalline diamond powder processed by a special technology. RCD Powder is more like polycrystalline diamond on performance. Compared with monocrystalline diamond powder, RCD powder has a rougher surface, which acts as a large number of small cutting chins, reduce surface roughness and enhance removal rate of the work- piece. Application:Optical glass & crytal, Sapphire and SIC wafer, Ceramic, Metal Features： 1.Rough surface can have more contact points in the polishing process, Enhance the polishing effect accordingly. 2. With good self-sharpening, it can keep high removal rate. 3.With a large number of small cutting chins, it can reduce surface roughness of the workpiece.

Minimum Order: 10 long tons

GRISH Ultra Fine Polishing Tape is coated with precisely graded minerals on the PET backing. You can achieve consistent, predictable finishing, faster and easier than traditional methods, it help to increase your productivity and reduce your costs. It is widely used for the polishing of hard materials such as carbide, ceramics, hard metals, alloys and composites. Precision coating produce consistent fine finishes. Features: 1. Superior finish surface with high removal rate.  2. Consistent polishing performance. 3. Good flexibility to fit to curved surface. 4. Applicable to both dry and wet polishing.  Applications: Semiconductor materials, Micromotor, Industrial roller, LCD panel, Hard disk

Minimum Order: 1 bags

GRISH Polycrystalline Diamond Slurry formulated with PCD Powder and water/oil soluble carrier liquids to maximize cutting and polishing efficiency. PCD Slurry provides high removal rate, less scratches, stable grinding rate and uniform polishing surface. We can also customize slurry as per specific requirements by customers. Features: 1.The advantage of internal-produced PCD powder makes sure the quality at consistent and high level. 2. Special formula keeps excellent dispersion and high removal rate with less scratches. 3.Stable polishing rate gives uniform polished surface. Application:Sapphire and SiC wafer, Hard disk, Hard ceramic, Optical glass & crystal, Sealing ring

Minimum Order: 1 bags

GRISH MD and RCD slurries consist of well-graded powders and have good dispersion. Both water and oil-based are available. Acomplete range of specifi-cations can meet various polishing requirements for hard materials. Features: 1.The advantage of internal-produced RCD powder makes sure the quality at consistent and high level. 2. Special formula keepsexcellent dispersion and high removal rate with less scratches. 3.Stable polishing rate gives uniform polished surface. Application:Sapphire and SiC wafer, Hard alloy, Hard ceramic, Optical glass & crystal, Metal

Minimum Order: 10 long tons

GRISH CMP slurry takes colloidal silica as base with unique formula design according to different polishing requirements. Stable pH value keeps polishing rate stable and saves polishing time. It can be widely used in the chemical mechanical polishing for various materials, such as sapphire, semiconductor materials (ex. Si, Ge, GaAs, InP, SiC, GaN, AlN), stainless steel, aluminum magnesium alloy and compound crystal etc. Applications:Silicon carbide substrate, Sapphire · LED material, Stainless steel, Optical glass & crystal, Aluminum nitride heat sink substrate, Optical communication Features: 1. Uniform spherical SiO2 particles. 2. High removal rate and stable polishing performance. 3. Precision polishing quality with Ra<0.2nm and TTV<0.3um. 4. Cycle use for several times. 5. Applicable to low-temperature polishing process (Under 35℃). 6. Neutral or weak acid polishing slurry is available.

Minimum Order: 1 bags