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Four-Nozzles 200L Fully Automatic High Temperature Asphalt Filling Machine Introduction GZ200-B is able to realize the automation of manual drum upload, auto drum infeed, auto bunghole positioning, auto quantitative filling and auto heavy drum outfeed. B series adopt nozzle electromechanical positioning tech, which is our patent tech. This technology is to rotate nozzle rather than drum while positioning, which adapts multiple type of drums with different diameters. B series are equipped with driven roller conveyors, occupy moderate area. Ex-proof motor, air extraction equipment, manual pneumatic capping equipment are optional. Equipment Features Less investment, less area Nozzle positioning, stable, suitable for multi types drums ranging from 60- 220L Equipped with forklift stand, easy to move Suitable for small annual output and various types of drums Usually single station, speed up to 100-120/h for 60L drum, 35-40/h for 200L drum Main Parameters Material Properties TYPE GZ200-4BS 2 NOZZLES Flammable and Explosive SUITABLE Container 50L-220L Toxic and Harmful SUITABLE Container Material Plastic/Metal Drum High viscosity SUITABLE Suitable for Variety of Drum Types Yes Strong Corrosive SUITABLE Filling Speed 65-80 Drums/Hour Volatile SUITABLE Numbers of Filling Station 1 Easy to Solidify SUITABLE Max Weighing Capacity 300kg Filling Index value 100g Peripheral Equipment Filling Accuracy ±0.1-0.2%FS Driven Conveyor YES(Optional) Operating Temperature -10℃-+40℃ Drum Storage Warehouse NO (Optional) Power 380V Coordinate Palletizier NO (Optional) GAS Source 0.35～0.6MPa Automatic Pallet Warehouse NO (Optional) Labeller NO (Optional) Degree of Automation Wrapping Machine NO (Optional) Auto Drum Infeeding YES Auto Bunghole Positioning YES Auto Cap Loosening NO Auto Quantitative Filling YES Auto Cap Feeding NO Auto Capping NO Auto Capping Inspection NO Auto Heavy Drum Outfeeding YES Auto Labelling NO(Optional) Auto Palletizing NO(Optional) FAQ 1. who are we? We are based in Shanghai, China, start from 2001,sell to Eastern Asia(30.00%),Mid East(20.00%), Southeast Asia(20.00%),Africa(15.00%),South America(5.00%),North America(5.00%),Eastern Europe(3.00%), Oceania(2.00%). There are total about 51-100 people in our office. 2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment; 3.what can you buy from us? Special product filling machine,Dosing and mixing plant,Packaging machine,Palletizer,Gravimetric filling machine 4. why should you buy from us not from other suppliers? Strong ability to dealing with high temperature, high viscosity, high inflammability and strong toxicity products. Very detailed and appropriate customized solutions for your specific needs. Time-endurable quality and user-friendly operation. 5. what services can we provide? Accepted Delivery Terms: FOB,CIF； Accepted Payment Currency:USD,EUR; Accepted Payment Type: T/T,L/C,D/P D/A; Language Spoken:English,Chinese

Vacuum brazed core drill is brazed in vacuum equipment, which ensures diamonds have the good combination with the tube. Common sizes of vacuum brazed core bit are ranging from 20mm to 102mm in size. Vacuum brazed core bits is used for professionally drilling kinds of natural stones, tiles. Diamond Core Drill Bits Features Manufacturer technology: Vacuum brazing Suitable: drilling tile, granite, marble and other natural stones with superior efficiency. Advantage: excellent drilling speed and reasonable lifespan. Drilling performance: drill the stones with a clear edge. Besides the neutral white box package, we have the OEM finishing package such as individual blister and paper insert for the blade. We can also make the package as your design, and provide package design service too.

Star Type Grinding Plate With Lght steel core is silver brazed and it's designed for installing on floor grinder, widely used for removal hard epoxies, urethane, and other coatings and toppings, for feathering uneven joints, or slab panels, for smoothing rough or patched concrete floor. It's 10 inches in size, and brazed type, offering a smooth and fast grinding as well as a long using life. Its special segments make much more aggressive removal. We offer different diamond grits according to your requirement of the surface quality level. Our Grinding cup wheel ranges include single row cup wheel, double row cup wheel, profile cup wheel, diamond grinding plate, diamond grinding head, and so on.  Light steel core makes the grinding working more easier. To choose the right diamond floor grinding shoe and diamond grinding cup wheels from suppliers, you must know the hardness of your concrete. Concrete can be soft, hard, abrasive, dusty and brittle, etc. There are no two floors are ever the same, typically they are more abrasive when the floor is new or have a high sharp sand content. The more abrasive the floor the harder bond you will need to get the best performance out of the diamonds. Bond - The strength of the metal binder that holds the diamond grit in the segment. Typically, the harder the bond the longer the life. Soft concrete needs the hard bond, medium-hard bond for medium concrete, and soft bond for hard concrete. Buy high quality Diamond Grinding Tools,contact us

Diamond steel wire is electroplated, it can be widely used in cutting steel pipeline, high-content steel structures. Manufactured by electroplated diamond beads, assembled by rubber and spring, diamond steel wire is engineered for use with a variety of materials and numerous application, specialized in cutting steel pipe, high-content steel structures. Diamond steel wire is suitable for hydraulic wire saw and electric wire saw, common sizes for steel pipe are 10.0 mm, 10.5 mm, 11.0 mm. 10.0 mm steel wire have 53 beads per meter, similar to Husqvarna C1200. Electroplate Steel Diamond Wire Features&cutting performance - Achieve a cut of  large, irregular buildings;  - Cutting in any direction and partial cutting; - High efficiency and safety without environmental pollution; - cutting process can be controlled by long distance.

Steel Adaptor For Cup Wheel/Core Bit (1). Material: Steel (2). Arbor: M14, M16, 1/2''BSP, 1 1/4UNC, 5/8''-11 (3). Thread: M14, M16, 5/8-11 (4). Packing: Export standard cartons, reinforced with straps (5). Advantage: Competitive price and good working performance. Steel Adaptor Features&cutting performance High quarrying efficiency, safety, and environmental operation ; High capacity with regular blocks, no internal injuries, can produce large-size blocks; Low-cost using.

230mm Laser Welded General Purpose Blade is laser welded by the full- automatic laser welding production line. Segments height of the circular saw blade is 10mm. The laser welded concrete saw blade is designed for universally dry and wet cutting for concrete, cured concrete, reinforced concrete, masonry, asphalt, green concrete and other kinds of construction materials. The cutting tools can be installed on a handled circular saw, angle grinder, table saw. Due to laser welding technology, the concrete blade can offer fast, smooth, safe cutting during your projects, having a high-performance ratio. Diameters are ranging from 4 inches to 16 inches, and other specifications are based on your request. Why choose us:   - Stable bases purchasing and Rich manufacturing experience. - Approving ISO9001 and EN13236 standard - Laudable lead-time & shipment control - Flexible payment terms https://www.corediamtools.com/

Siemens SIMATIC S7-300 6ES7313-5BG04-4AB2 CPU 313C CPU Central Processing Unit With MPI 40-Pole CPU 313C Siemens PLC SIMATIC S7-300 6ES7313-5BG04-4AB2 With MPI 40-Pole 0 Product Description: Siemens PLC is a reliable and powerful SIMATIC Programmable Logic Controller (PLC) developed by Siemens. It is a CPU-based system that enables customers to control their industrial processes. With its 128 KB memory and Ladder Diagram programming, Siemens PLC is the perfect choice for all types of automation applications. This PLC is highly reliable and is designed to operate in a wide range of environmental conditions, from 5-95% humidity, and in temperatures ranging from -10°C to +60°C. It also has a 2-year warranty and dimensions of 100 X 100 X 100 mm. If you're looking for an efficient and dependable PLC, Siemens PLC is an excellent choice. Features: Product Name: Siemens Programmable Logic Controller (PLC) CPU: Siemens PLC Memory: 128 KB Outputs: 24V DC Temperature: 0-50°C Weight: 1 Kg Protection: IP20 Technical Parameters: Feature Specification Inputs 24V DC Memory 128 KB Outputs 24V DC Programming Ladder Diagram Dimensions 100 X 100 X 100 Mm Brand Siemens Connectivity Ethernet, Profibus, RS232/485 Weight 1 Kg Power 24V DC Humidity 5-95% Siemens PLC Model 6ES7313-5BG04-4AB2 CPU 6ES7313-5BG04-4AB2 Applications: Siemens Programmable Logic Controller (PLC) 6ES7313-5BG04-4AB2 is a reliable and cost-effective device that is widely used in industrial automation applications. This PLC is made in Germany and comes with a Certificate of Conformity (COC) that ensures quality and performance. The minimum order quantity for this PLC is 1 and the price is subject to inquiry. It is shipped in its original package and the delivery time is 3-5 days. The payment terms are T/T only and the supply ability is adequate. The dimensions of this PLC are 100 X 100 X 100mm and it has a temperature range of 0-50°C. It comes with a 2 years warranty and has 24V DC outputs. Customization: Siemens PLC Customized Service Brand Name: Siemens Model Number: 6ES7313-5BG04-4AB2 Place of Origin: Germany Certification: COC Minimum Order Quantity: 1 Price: Please inquire Packaging Details: Original package Delivery Time: 3-5 days Payment Terms: T/T Only Supply Ability: Adequate supply Inputs: 24V DC Brand: Siemens Power: 24V DC Warranty: 2 Years Memory: 128 KB S7-300 CPU, Siemens Programmable Logic Controller Support and Services: Siemens PLC provides technical support and services to ensure that customers are getting the most out of their products. Siemens provides customers with access to a team of dedicated engineers and technicians to help with technical queries and maintenance. Customers can get help with software installation, hardware troubleshooting, product customization, and product upgrades. Siemens also provides customers with training materials, tutorials, and online support. In addition, Siemens offers a range of extended services such as spare parts, repairs, and maintenance programs. Customers can also purchase extended warranties for their products. Packing and Shipping: Packaging and Shipping for Siemens PLC Siemens PLCs are safely packaged and shipped with utmost care to ensure a secure delivery. Before shipping, each unit is inspected to ensure it meets all quality requirements. The packaging of Siemens PLCs includes high-strength packing materials and a cardboard box to ensure the product is safe and secure during transport. Additionally, each unit is clearly labeled with its serial number, part number, and other relevant information. Siemens PLCs are shipped via standard, express, and air freight depending on the customer's needs and the destination.

Product Description Single Acting Piston Seal Set With Thermoplastic Header Ring, Fabric Elastomer Intermediate Ring And Backup Ring. KL26 single acting piston seal set consists of thermoplastic header ring, fabric elastomer intermediate ring and fabric elastomer backup ring. Advantages • High wear resistance • Superior sealing performance in heavy duty applications • Long service life • Thin oil film • Suitable design for locking applications Area of Application • Mining industry • Iron and steel industry • Injection moulding machines • Presses • Heavy duty cylinders Single Acting Hydraulic Piston Seals Set With Thermoplastic Header Ring 0

This Monday, we launched a hydraulic cartridge relief valve equivalent to HydraForce standard part RV08-20. It is a screw in, cartridge style, direct acting, poppet type, hydraulic relief valve intended for lower flow circuits requiring low internal leakage. The features of this hydraulic cartridge relief valve: Adjustments cannot be backed out of the valve. Variety of pressure adjustment options including non-adjustable factory preset. Optional spring ranges to 248 bar (3600 psi). Rapid response to pressure changes. Optional bi-directional pressure (requires bi-directional pressure seal option). Compact size. A customer in Turkey placed a test order for 10 pcs last June in 2022. After 1 year of testing, it proves that the function and performance of AAK hydraulic relief valve benchmarked the quality of HydraForce RV08-20. Today, we received their annual order for 1,000 pcs of qty. AAK hydraulic cartridge relief valve 2 advantages: 1. Internal leakage: 5 drops/min, benchmarking against HydraForce 2. Its service life is 2 times that of its peers Technical parameters of AAK E-RV08-20 Hydraulic Cartridge Direct Acting Relief Valve: Max. Operating Pressure: 250 bar (3625 psi) Flow: See PRESSURE DROP VS. FLOW graph Internal Leakage: 5 drops/min max. at to 80% of nominal setting Operating Fluid Temperature: - 30 °C to 100 °C (with Standard Buna N seals) Cavity: 08-2  The newly launched AAK E-RV08-20 direct acting relief valve, benchmarking HydraForce RV08-20, has been approved by customer in Turkey after 1 year of testing. You are welcome to try it out. AAK HYDRAULIC VALVES (614) 2023-06-26 https://www.aakindustry.com/info , -detail/relief-valves-aak614

Gaylord comes from Holland and is an old customer of AAK hydraulic valve. Some time ago, he emailed me to ask if AAK could optimize a hydraulic direct acting cartridge relief valve. After communication, I learned that at the beginning of the year, they had an order for a hydraulic power unit for high-precision machine tools, which used a hydraulic direct acting cartridge relief valve. Gaylord chose an Indian hydraulic cartridge valve manufacturer to make samples, and the equipment debugging was not smooth. The hydraulic direct acting cartridge relief valve had unstable overflow liquid, forming a jet, especially under low pressure, the stability of the system was poor. Although the function test of the valve was normal, it was still necessary to optimize the hydraulic direct acting cartridge relief valve, but 2 weeks later, the original manufacturer still had no solution, and Gaylord contacted me. According to his hydraulic system schematic diagram and the drawing of the original hydraulic direct acting cartridge relief valve, AAK engineers found the hidden danger of the original structure. Gaylord sent the PO of the test order. After 50 days, AAK sent 10 samples of hydraulic direct acting cartridge relief valves. A month later, Gaylord sent us an email. The equipment was adjusted smoothly. Under low pressure, the system was stable. The customer was also satisfied with the prototype. His engineers also admired the brains of AAK technical team. AAK hydraulic direct acting cartridge relief valve has good stability under low pressure conditions. The key lies in its unique structure: 1. The valve spool, spring, plunger and pressure regulating knob are successively installed in the cavity of the hydraulic cartridge relief valve body. The valve spool contacts the valve seat under the elastic force of the spring, and relies on the elastic force of the spring and the back pressure of the overflow port to balance the hydraulic pressure generated by the oil inlet. 2. The original poppet valve spool is changed into an integral ball type valve spool, and an annular gasket is set between the ball valve spool and the spring. The ball valve spool can automatically adjust the axial angle relative to the centering bearing, which improves the stability of the valve and ensures the low pressure stability of the hydraulic system. 3. Before assembly, the standard steel ball is used to punch the runner port and gasket port that contact the steel ball. The original wire seal is changed to ring seal to improve the sealing performance, so as to ensure the reliable contact between the gasket and the steel ball and realize the stable overflow function. AAK hydraulic direct acting cartridge relief valve, is also stable in low pressure, you can also try a small order! https://www.aakindustry.com/info-det , ail/relief-valves-aak450

AAK hydraulic pressure control valve is made of 100Cr2 bearing steel, with high hardness and high wear resistance. It also adopts distinctive heat treatment process, to ensure that the hydraulic valve has no cavitation. It takes only 2 weeks to solve the customer complaint and helps Erich out of the dilemma. Erich has been doing well in Linde company for several years. Recently, he was under great pressure due to a complaint. A hydraulic pump produced by Linde company went on strike after 8 months of use. The customer complained directly to the boss, who asked the after-sales department to find out the cause and solve it immediately. After inspection, the engineer found that mechanical damage had occurred on the metal surface of the pump, and the surface of the damage showed sponge like small holes, which should be caused by the hydraulic impact formed by the internal hydraulic system. At the same time, it was found that the hydraulic pressure control valve used in the system was the most serious, and no problems were found in other components. It was basically determined that the poor cavitation resistance of the hydraulic pressure control valve led to the strike. The boss asked Erich, who was responsible for the purchase of hydraulic pressure control valves, to re purchase hydraulic pressure control valves for these inoperable pumps within 20 days, to make sure no cavitation. Erich contacted the original supplier of hydraulic pressure control valve and informed him of the whole situation. The original supplier mentioned that before production, Erich didn't inform the current working condition. To meet this working condition, materials must be customized, which would not be allowed by the time, because it would take at least 40 days. Erich also contacted a number of hydraulic valve manufacturers and got the replies that they either could not meet the quality requirements or the time would not be enough. This is troublesome. It's too late for the 20 days of time frame given by the boss. Erich thought of AAK hydraulic valve, because he had a hydraulic pressure control valve sampled here last year, but didn't have any further contact due to AAK quotation was high. Erich asked by email whether AAK can solve the cavitation of hydraulic pressure control valve. According to the cavitation picture of the hydraulic pressure control valve provided by Erich and verifying the hydraulic working conditions, we replied that the materials used for this hydraulic pressure control valve need to be treated. However, AAK has inventory, because an American customer purchased similar hydraulic pressure control valves last month, we can send 4 samples of hydraulic pressure control valves within 14 days. After Erich received the samples of hydraulic pressure control valve, their engineers installed it for debugging and it can work normally. Erich asked us to prepare materials quickly. His boss asked to replace all the hydraulic pressure control valves in this batch to avoid further complaints from customers. At the same time, he asked us to ensure that the mass production should be stable and there should be no cavitation. The most important factor to avoid cavitation is the material selection of steel and the heat treatment of steel. According to the customer hydraulic working conditions, A AK selects 100Cr2 bearing steel and adopts carbonitriding heat treatment process. It is carburized at high temperature of 820-830 ℃ for 13 hours, then oil quenched, - 60 ℃ to - 70 ℃ cryogenic treatment and 150 ℃ to 160 ℃ tempering treatment. The whole molecular structure of the steel is uniform and the hardness can reach HRC68. After such heat treatment, the comprehensive properties are very stable, uniform hardness and good wear resistance. Wear resistance and high contact fatigue strength ensure no cavitation. AAK hydraulic pressure control valve, no cavitation, has the stability admired by customers, you can also give it a try! https://www.aakindustry.com/info-detai , l/hydraulic-pressure-control-valves- aak134

When I opened the mailbox this morning, I saw an email from Bruce, which should be a re-order for the hydraulic relief valve, because he asked about the durability of AAK hydraulic relief valve spool last week. Opening the e-mail, it is indeed the need for purchasing a large number of 420 hydraulic relief valves, and requiring 3 years of quality guarantee. Bruce is a purchaser of Konecranes in Finland. 3 years ago, a customer of his company complained that the crane was easy to depressurize during work, resulting in the inability of the crane to bear the force. Especially after the working temperature reaches 55 ° C, the pressure cannot go up. Field engineers believe that this is a problem of the hydraulic system, such as low pressure regulation of the hydraulic relief valve, wear of the hydraulic system, or oil pollution. No abnormality was found after inspection. Finally, it was determined that the fault occurred on the hydraulic relief valve. After disassembling the hydraulic relief valve, it was found that the cone valve spool was worn, affecting the sealing of the hydraulic system, so the oil pressure could not rise. The customer does not understand why the valve spool of this hydraulic relief valve is worn after less than 2 years of use. The customer requested to replace with a batch of hydraulic relief valves with durability of more than 3 years and use them on these 12 faulty cranes. At that time, Bruce contacted more than 10 hydraulic relief valve manufacturers and got reply that the warranty could not be achieved for 3 years. Some hydraulic valve manufacturers replied that they only have 50% confidence. This result embarrassed Bruce. The customer requirements for the hydraulic relief valve could not be implemented, how he should explain to the boss. I received message from Bruce on the company website of AAK (www.aakindusrty. Com): "can AAK really provide a 3-year warranty hydraulic relief valve? I replied directly: just give it a try then you will know. I can't make money with the trial orders of several samples, and you can't lose money. Maybe Bruce was stimulated and sent us the test order the next day for 4 hydraulic relief valves. Bruce also frankly told AAK that two other hydraulic valve manufacturers would also try the order at the same time. Their plan is that each factory will be tested for 4 samples, with a total of 12 hydraulic relief valves to meet the urgent needs of customer first. About 2 years after the samples were sent, we received email from Bruce again for another trial order of 8 hydraulic relief valves. I felt strange and thought that they actually didn't have big quantity order for hydraulic valves. Until last week, from his email, we learnt that they had tested the hydraulic relief valves provided by AAK for 3 years. Indeed, 3 years later, AAK hydraulic relief valves still worked normally, and the hydraulic relief valves provided by the other two manufacturers had faults in less than 2 years. According to the working conditions, we understand that the core of durability of the hydraulic relief valve from Bruce is the valve spool, so we use the bearing steel imported from Korea and use our brains in heat treatment. After hot rolling, the steel is spheroidized and annealed, and then cold drawn. The processed bearing steel has high hardness, high wear resistance and hardenability. It is difficult to find other steels to benchmark it. Wear resistance for 3 years is certain, and maybe there is no problem for 5 years. AAK hydraulic relief valve, impressed Bruce with its high durability. If you also encountered a hydraulic relief valve failure, just contact us to give it a try! https://www.aakindustry.com/info-detail/hy , draulic-relief-valves-aak133

Alvis is from Norway and has been in contact with AAK for 1 year. There were some inquiries for hydraulic manifold blocks, but no actual order. It was not until December last year that the trust door was completely opened. It took him 6 months for a special hydraulic manifold block, but it didn't work. AAK solved the problem with the first sample. A set of hydraulic manifold designed by Alvis will be exhibited in America. He selected a local hydraulic manifold block manufacturer that has cooperated for 3 years to try the sample, but the hydraulic system is unstable. The manufacturer advised that this hydraulic manifold block has many feedback oil circuits and control oil circuits, and the oil circuits is composed of small deep holes. The diameter of the damping hole is less than 1mm, and it is difficult to eliminate burrs for 100%, which may lead to blockage of the oil circuit. If the original design requirements of the hydraulic manifold block are not changed, the manufacturer would not be able to produce it. If the parameters are changed, the selling point of hydraulic manifold will be lost. Alvis is very distressed. He also tried to work with several other local hydraulic manifold manufacturers to make samples, but none of them is able to cooperate with him. In this way, 4 months have been wasted. Alvis wanted to try overseas hydraulic suppliers, and sent me an email. According to his hydraulic manifold block drawing, our technical team analyzed and discussed it, and concluded that if the original design was not improved, the burr hazard would still exist. Alvis seemed to think that AAK is unable to sample the hydraulic manifold block, so he did not have further contact with us. 1 month later, he came back to us again to discuss this hydraulic manifold block, and asked about our optimization plan. I realized that he was desperate, and told him that AAK did not need to change the parameters of the hydraulic manifold block, but only needed to increase the angle between the two planes greater than 150 °, but the best degree still needed to be explored. Alvis suddenly realized it and blamed me for not telling him earlier. I joked that he didn't give me a chance to tell him. After changing materials for 2 times, and adjusting the processing parameters for 4 times, it was determined that 158 ° would be the best angle. After 30 days, 3 hydraulic manifold blocks were sent out. 3 weeks later, Alvis told us that the hydraulic manifold was running stably, meeting the system requirements, and we just need to wait for the good news of the exhibition. He sighed that for this exhibition, he was in trepidation for 6 months, but did not expect that the first sample of AAK was successful. In the future, AAK will be his preferred supplier for hydraulic manifold blocks. This is also what I said before. Whether customers buy your products or not is not because of your poor price or long distance. The root cause is that the trust is not in place. AAK hydraulic manifold blocks, in regards to deburring method, the following 3 points are critical: 1. Select materials with small elongation and deformation hardening index to effectively suppress burr. 2. Optimize the valve body structure, the included angle between two planes shall be greater than 150 °, and the best degree shall be tested continuously. 3. Use high-pressure solution jet to remove burrs, use solution to weaken the magnetism of burrs, and then use the instantaneous impact force of liquid to ensure that the hydraulic manifold block is 100% burr free. AAK hydraulic manifold blocks, no burr, no pollution, no leakage, welcome to try! https://www.aakindustry.com/info-d , etail/hydraulic-manifold-blocks-aak390

Donald, a hydraulic valve customer from the United States, recently had an order for hydraulic valve sleeve parts with an old supplier. It took more than 30 days to adjust the approval sample of hydraulic valve sleeve for many times. The taper of hydraulic valve sleeve always failed to meet the customer requirement of 0.3-0.5μm. The manufacturer can only give up the order, but this wastes Donald's time. The trouble is that the customer is still urging the progress of the modification of the hydraulic valve sleeve. Donald consulted more than 30 hydraulic valve manufacturers online, but none of them can guarantee that the taper could reach 0.3-0.5μm. Only 2 manufacturers indicated that 1-2μm is the limit that they can reach. Donald plans to give up this hydraulic valve sleeve order, but he doesn't know how to talk to the customer. While Donald was worried, his colleague Smith gave him the contact information of AAK HYDRAULIC VALVE. Smith had inquired about the hydraulic valve with AAK before. Smith directly emailed us the inquiry requirements and the drawings of the hydraulic valve sleeve, and CC Donald. He asked us to communicate with Donald directly to see how to solve the taper requirements of the hydraulic valve sleeve. After our technical department had a meeting, they found that it was really a bit tricky. At present, they are not sure to tell the specific accuracy of the taper of the hydraulic valve sleeve. Except for the taper of the hydraulic valve sleeve, the straightness and roundness can fully meet the requirements. We can study the taper of the hydraulic valve sleeve while proofing. However, the specific parameters still need to be determined until the final samples come out. With a try attitude, Donald asked us to start sampling the same day. A week later, we sent out the samples of the hydraulic valve sleeve. A few days later, Donald asked by email if we could try again to improve the taper accuracy of our hydraulic valve sleeve from 0.8-1.2μm to 0.3-0.5μm to meet the customer requirement. AAK technical department made modification and adjustment for 3 days and 2 nights, and sent the modified sample of hydraulic valve sleeve on the 4th day. Donald soon informed that the parameters of the second hydraulic valve sleeve sample of AAK met the requirements. Donald is curious that more than 30 hydraulic valve manufacturers can't achieve the taper accuracy of hydraulic valve sleeve. How can AAK achieve it by making samples only in two times? As a precision part, the precision of hydraulic valve sleeve is guaranteed by operators and equipment, especially precision grinding is very important. For most hydraulic valve manufacturers, the length of the grinder they used is basically an extended grinder with a hole length of 120%. Although it can repair and maintain the hole straightness, the accuracy of the hydraulic valve sleeve can only be controlled at 1-2μm maximum. 3 years ago, AAK adopted a grinder with a length of about 90% of the hole length, which can reach 0.5μm taper, but not stable. The taper can only be improved to about 0.5μm until the cylindrical grinder is explored to replace the extended grinder. Our proofing master has been groping on the machine for more than 12 years. He has worked out the process step by step and constantly corrected the operation method to obtain the fixed process, so as to ensure the 0.3-0.5μm accuracy high requirements of the hydraulic valve sleeve. AAK hydraulic valve has been pondering precision and never stopped. You can also have a small try. https://www.aakindustry.com/info-detai , l/hydraulic-valve-sleeve-aak132