A fast telephoto prime, the Nikon F, Sigma SA and Canon EF-mount 135mm f/1.8 DG HSM from Sigma pairs bright and sophisticated optics with intuitive handling and design. As part of the Art line of lenses, this 135mm f/1.8 is designed for high-resolution rendering, and utilizes FLD and SLD glass to control chromatic aberrations and color fringing for notable clarity. A Super Multi-Layer Coating also enhances image quality by suppressing lens flare and ghosting for improved contrast and color fidelity in strong lighting conditions. Additionally, making it an ideal lens for portraiture, the bright f/1.8 maximum aperture pairs with a rounded nine-blade diaphragm to benefit selective focus and shallow depth of field imaging with smooth bokeh. Complementing the imaging capabilities, the lens sports a Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance with full-time manual focus override. The physical design utilizes Thermally Stable Composite material for durability in a wide range of environments, and a brass bayonet mount also offers rigidity and mounting precision. As part of the Art line within Sigma's Global Vision series, this lens is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications. Prime telephoto lens is designed for full-frame Canon EF-mount DSLRs, however can also be used on APS-C models where it will provide a 216mm equivalent focal length. Bright f/1.8 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques. Two F Low Dispersion (FLD) and two Special Low Dispersion (SLD) elements are featured in the optical design, and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy. A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions. Nine-blade rounded diaphragm contributes to a smooth and pleasing bokeh quality. The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time. The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations. The bayonet mount is constructed from brass for ensured accuracy and durability. Additionally, rubber sealing is incorporated in the mount design to render it dust- and splash-resistant. This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.
Model Name Unit/set Note HB-I Hydraulic Reel Stand 5 Main spindle ¢ 242mm, hyperbolic heavy-duty rocker arm, tooth-type clamp paper head, ventilated disc-type multi-point brake, hydraulic drive up and down, left and right translation, and medium. Guide rail length 6000mm, trolley adopts 10mm middle plate welding. SP-1-600 Single Pre-heater (floor) 4 Roller ¢ 600mm, including pressure vessel certificate. Electric adjustment angle. The wrap angle can adjust the heated area of the paper within 360°. 320B Single facer 2 Corrugated main roll ¢ 320mm, material 48CrMo alloy steel. Independent gearbox, universal joint transmission structure. SP-3-600 Triplex preheated 1 Roller ¢ 600mm, including pressure vessel certificate. Electric adjustment angle. The wrap angle can adjust the heated area of the paper within 360°.. OHB Double transport bridge 1 The main beam 200mm channel steel, independent variable frequency motor driven paper transport, adsorption tension. Electric correction. CGM-F Double glue machine 1 Coated roller diameter 269mm; engraved 25-line pit type net pattern; independent variable frequency motor drive, PLC adjustment glue gap and man-machine interface; glue digital display. HPM Double facer machine 1 Drying department 12 heating plates, 4 pressure plate, pneumatic lifting pressure roller, using dense pressure roller. FTKM Electric adjustment thin blade machine 1 Electric adjustment knife, electric bias, 5 knife 8-wire type, blade made of tungsten alloy steel. NC-S120 NC Cut off machine 1 Full AC servo control, energy storage brake, spiral knife structure, oil-immersed gear drive, 10.4 inch touch screen display. SMA-S Stacker 1 Electrically adjust the cardboard size and pneumatically control the lateral output cardboard. ZQ Steam system 1 Including equipment pipeline valves, steam traps, meters and other steam components, customer-owned heat sources and pipelines. ZJZ Glue making system 1 Pipeline customers bring their own. The glue making device consists of a carrier tank, a main tank, a storage tank, and a glue pump and a back pump
The all new Suzuki 15hp EFI is an excellent choice of power for medium to larger sized jon boats and skiffs requiring a long shaft as well as auxiliary power for sailboats and trolling/kicker applications. This model features push-button electric start with a built-in 12V charging system. In addition, all portable Suzuki models 15hp and below that feature electric start also retain the thru-cowl manual start pull cord. As one of the quietest 4-strokes ever built, the 15hp is a great example of Suzuki's excellence in engineering. Check out the long list of standard features below which make the 15hp Suzuki an exceptional value. Electronic Fuel Injection (EFI) Sleek, Compact, Lightweight Design Saltwater Rated Fresh Water Flushing Port Multi-Layer Corrosion Protection Electric Start + 12V Alternator System Thru-Cowling Manual Back-Up Starting Forward-Mounted Gear Shift Lever Twist-Grip Throttle with Tension Control Quiet Through-the-Prop Exhaust Start-in-Gear Lockout Protection Proven Automotive Style Oil Pump Shallow Water Drive 5 Trim Positions w/Tilt Lock Pin Low Oil Pressure Warning System Over Heat Warning System Over-Rev Limiter Protection Steering Friction Tension Control Integrated Carrying Handle Emergency Lanyard Stop Switch 3.1 US Gallon Fuel Tank / Fuel Line 3-Blade Aluminum Propeller 3-Star Ultra-Low Emission Rating Suzuki's Lean Burn Control System Suzuki 3-Year Warranty MODEL DF15AEL2 SKU DF15AEL2-20 WEIGHT 108.0 lb MANUFACTURER Suzuki COUNTRY OF MANUFACTURE Thailand HORSEPOWER 15hp SHAFT LENGTH 20" (Long) STEERING Tiller STARTING Electric TRIM & TILT Manual FUEL DELIVERY EFI FUEL TANK External CYLINDER(S) 2 DISPLACEMENT 327 cc (20.0 cubic inches) BORE AND STROKE 60.4 x 57 mm (2.38 x 2.24 inches) FULL THROTTLE RPM RANGE 5000-6000 RPM IGNITION SYSTEM Digital CDI INDUCTION SCAVENGING SOHC VALVES PER CYLINDER 2 FUEL TYPE Unleaded Gasoline (87 octane) FUEL TANK / FUEL LINE INCLUDED: 3.1 Gallon Fuel Tank and Fuel Line OIL TYPE SAE 10W-30 or SAE 10W-40 OIL CAPACITY 33.8 fl oz. (1000 mL) LUBRICATION Wet Sump; Trochoid Type Cam-Driven Oil Pump ALTERNATOR 12V 145W 12A COOLING SYSTEM Water-Cooled SALTWATER RATED Yes GEAR RATIO 2.08:1 GEAR SHIFT Forward-Neutral-Reverse (front-mounted lever) PROPELLER 3-Blade Aluminum 9.25" Dia x 9.0" Pitch
CNC lathe with picking woking pieces CNC lathe with tray device cnc lathe with tray device manufacturer Q series-precise linear guide-way with flat bed in blade row : Q5�Q7�Q5C�Q7C S series-precise linear guide-way with flat bed in blade row : S36, S350 with the features of high precision. high speed. high efficiency, is the ideal selection for substituting hard rail lathes and imported lathes. * High precision: importing components from Japan and Taiwan through the advanced assembly and inspection technology, realizing the precise turning with tolerance of μ level. * High speed: more than 5000RPM for spindle ,rapid traverse 20m/s, to reach the high speed machining. *High-efficiency: with the concept of technique innovation and application oriented, and sustainability improve the overall performance, to make the processing more efficiency. * Stability: high quality requirement and strict selecting for all the components, to make the machine performance more stable. (Synchronous electric spindle)- the best selection for substituting the imported lathes. * More precision: the complete Synchronous servo configuration for the spindle and the X/Z axis, makes the processing accuracy get a new break through. * Higher speed: the superior Synchronous electric spindle make the spindle perform higher, faster, and more stable. * More efficiency: the complete, Synchronous control for the core parts (all the axis),makes the processing efficiency better. In this technical solution,we use one gantry loader plus another tray device to realize automatic processing & picking woking pieces. It is more suitable for disk type parts. Main parameters UNIT Q5 Q7 Q7C S36 S36C S350 S36D S350D Capability Max. swing diameter mm 245 285 285 300 300 350 300 350 Max. turning diameter mm 240 270 270 270 270 350 270 350 Max. turning length mm 200 300 300 330 330 420 330 420 Max. bar through-hole mm 21(25) 26�35� 26(35) 26�35� 26�35� 40 26�35� 40 Axis Stroke X-axis travel mm 250 320 320 420 420 420 330 330 Z-axis travel mm 200 300 300 330 330 330 420 420 Rapid Traverse X/Z-axis m/min 20 20 20 20 20 20 20 20
AAK 3 Skills Solved the problem of Hydraulic Counterbalance Cartridge Valve Caused by Back Pressure and helped Dorian's Equipment to be Promoted Smoothly Dorian is from a Greek hydraulic equipment company and is responsible for the procurement of hydraulic components. At the beginning of the year, they developed a new hydraulic crane, which requires the use of hydraulic counterbalance cartridge valve. Dorian worked with a local manufacturer to make samples. During the equipment commissioning, it was found that the hydraulic counterbalance cartridge valve had no overflow function due to the back pressure. The hydraulic system was tested separately, but it was normal. Dorian felt that there was a hidden danger in the original design of the hydraulic counterbalance cartridge valve. The engineer thought that the function of the hydraulic counterbalance cartridge valve was not up to standard. Dorian was a little embarrassed. Dorian found website of AAK hydraulic valves on Google, and noticed that AAK had been supplying first-line brand hydraulic valves such as HydraForce, SUN Hydraulics, and HAWE for many years. Maybe he saw hope and sent an email to ask for help. According to what he said, the hydraulic counterbalance cartridge valve has no overflow function under the influence of the back pressure of the closed central circuit. I told him that it was probably a flaw in the design of the original hydraulic counterbalance cartridge valve. According to his hydraulic schematic diagram and original drawing of hydraulic counterbalance cartridge valve, AAK engineer not only determined that the problem was in the original design, but also had a solution. After knowing these, Dorian asked AAK to make samples. After 50 days, AAK sent 10 hydraulic counterbalance cartridge valve samples. 4 weeks after AAK hydraulic counterbalance cartridge valve samples were sent, Dorian told me that the equipment debugging was smooth and the market promotion had been started. I was asked to wait patiently for the batch order. The rapidity and stability of AAK optimized hydraulic counterbalance cartridge valve is the key to smooth equipment commissioning. It solves the contradiction between the rapid response and stability of the equipment in the early stage, and the flow change is moderate, the movement is stable, the safety overflow function is not affected by the back pressure, which can be applied to the closed center and open center hydraulic systems. 1. The middle section of the hydraulic counterbalance cartridge valve spool is provided with an inner concave ring, which is also the valve inlet. The right end of the inner concave ring has a cone, on which there is a two-stage stepped taper ring. The cumulative area of the cone is the same as the area of the cylinder end face at the right end of the counterbalance cartridge valve spool.
For instantaneous unloading flow 10000lpm Hydraulic Cartridge Pressure Control Valve, Vadim only found AAK Vadim is from the Netherlands and has been engaged in procurement in a hydraulic equipment company for 3 years. Some time ago, they encountered a complaint about the hydraulic support they sold. The hydraulic column was bent. This has never happened before. The engineer was surprised. After field analysis, the problem was that the maximum unloading flow of the hydraulic cartridge pressure control valve was too small to realize rapid unloading, which affected the hydraulic column. The original manufacturer of the hydraulic cartridge pressure control valve tried to modify it once, but it was ineffective. Vadim contacted more than 10 cartridge valve manufacturers, but they couldn't make hydraulic cartridge pressure control valves with instantaneous unloading flow of 10000lpm. Vadim was worried. Vadim browsed AAK website on Google and clicked on the customer case and product introduction of hydraulic cartridge pressure control valves for many times, and left us a message: How to increase the maximum unloading flow of the hydraulic cartridge pressure control valve? My reply: there are many ways to improve it, and we need to make specific analysis. According to the video of bending of hydraulic column and the production drawing of hydraulic cartridge pressure control valve sent by him, after several discussions, AAK engineers have implemented the plan with 90% confidence. Vadim saw the hope and asked for AAK samples. After 50 days, AAK sent 20 samples of hydraulic cartridge pressure control valves. Last week, Vadim sent an email to express his thanks. It has been more than half a year since the hydraulic cartridge pressure control valves of AAK was installed. The customer has not reported that the hydraulic column is abnormal. AAK engineers improved the internal structure of the original hydraulic cartridge pressure control valve and ingeniously started from 3 points. Vadim said that their engineers also applauded and wanted to find opportunities to learn from each other. 1. The valve spool of the hydraulic cartridge pressure control valve adopts a two-stage stepped cylinder structure. When the high-pressure liquid of the system acts on the large diameter end and the small diameter end of the valve spool at the same time, the area difference between the two ends of the valve spool can greatly reduce the hydraulic pressure borne by the valve spool, so as to achieve the stability of the large flow unloading process. 2. On the cylinder wall in the middle of the front half valve body, 12 unloading holes are uniformly arranged along the circumference, which not only balance the force along the radial direction, but also make the valve spool flexible. At the same time, during the unloading process, it has the largest flow section to achieve super flow unloading, and its maximum instantaneous unloading flow can reach 10000lpm.
The hydraulic cartridge directional control valve that HydraForce can't make, is customized by AAK for navigation Fossette is from a navigation and aerospace equipment company in Canada, and has been purchasing for 4 years. At the beginning of the year, their customer wanted to customize a marine hydraulic power unit, which was very strict with the hydraulic cartridge directional control valve. He contacted HydraForce for customization. Because of small quantity and tight time, HydraForce could not meet the needs of Fossette. He selected hydraulic cartridge directional control valve manufacturer in Ningbo, who has cooperated for 2 years, to make samples. The manufacturer guaranteed that the geometric accuracy of the valve spool and valve cage is 0.8�¼m, but it was jammed during equipment commissioning. The hydraulic cartridge directional control valve of this manufacturer is inflexible, and the accuracy is 50% lower than the requirement. At this moment, the manufacturer said that 1.2�¼m of hydraulic cartridge directional control valve is the limit, and their engineers can't fulfill their promises. Fossette contacted more than 10 manufacturers of hydraulic cartridge directional control valves, but it was also fruitless. The time was wasted for 6 weeks, the customer was dissatisfied, and Fossette started to worry. Fossette saw on B2B that AAK has released a customer case about "0.8�¼m Accuracy of hydraulic directional control valve", he left a message on AAK Hydraulic Valve website, asking 3 questions consecutively: 1. Accuracy 0.8 �¼m Hydraulic cartridge directional control valve, are you SURE? 2. Customization time? 3. The quantity is small, are you interested? He specially emphasized â??SUREâ?? in capital letters. He may be feared of being disappointed again. I told him that the precision of 0.8�¼m Hydraulic cartridge directional control valve, is already an existing fact for AAK, it is not a matter of SURE or not. I need a complete drawing to evaluate the probability of customization success as a whole. 40 days later, AAK sent 10 customized hydraulic cartridge directional control valves. After that, there was no email from Fossette, and I did not follow it. Generally, the customer will give a feedback 2-4 weeks after receiving the samples. 4 months later, just last week, Fossette informed us that his customer was very satisfied with the marine hydraulic power unit they provided. He was preparing for the annual order and asked me to keep an eye on the production in the workshop to ensure the progress and manufacturing quality of large goods. The hydraulic cartridge directional control valve accuracy within 0.8�¼m, challenges the processing equipment, the technical team and the manufacturer's quality awareness. 1. In terms of finish machining, OKK ultra precision machine tool from Japan is used, and AAK self modified fixture is equipped, accuracy of 0.8 m is not our limit.
Only AAK was able to produce the hydraulic manifold blocks, and its technology is not inferior to American and Japanese counterparts Scott comes from an equipment company in the United States. In the second half of last year, they developed a hydraulic equipment to be introduced at the exhibition. The chief engineer of the company requires the purchasing department to get all hydraulic manifold blocks arrive at the factory within 3 months. There is a hydraulic manifold block. Due to the slow production, the production time of 45 days is not enough. Scott disassembled the hydraulic manifold blocks, purchased the hydraulic valve blocks from one factory and the hydraulic cartridge valves from another factory. All hydraulic manifold blocks and those parts produced separately arrived at the factory in the United States in 3 months. The technicians in the workshop installed them. After a few days of commissioning, they found that there were oil leakage on one hydraulic manifold block, that is the one disassembled and produced in two different factories. The chief engineer requires getting a new hydraulic manifold block within 1 month, otherwise it will be too late to catch the exhibition. Scott contacted the original manufacturer. As a result, the two hydraulic valve manufacturers prevaricated each other. Their engineers also tested the hydraulic cartridge valves and hydraulic valve blocks separately, and there was no abnormality. Scott tried to contact new manufacturers of hydraulic manifold blocks, but they all said that they couldn't get samples ready within 30 days. Scott was worried. Scott saw on AAK website that a hydraulic manifold block was very close to the size he wanted to purchase, so he sent an inquiry. After two rounds of communication, we learned about the problems he encountered in purchasing hydraulic manifold blocks. I told him that if the hydraulic cartridge valves and the hydraulic valve blocks were approved to be no problem, the workshop technician might break the seal ring or shift the seal ring during the installation of the hydraulic manifold blocks. This kind of hydraulic manifold blocks purchased from different manufacturers and then assembled is easy to have problem. A customer of AAK encountered similar problems before. After Scott asked their mechanic to replace the sealing ring, there was no abnormality in the test run, and they could catch up with the exhibition. Scott is glad that the problem of hydraulic manifold block has been solved, and said that for all hydraulic equipment orders after the exhibition, the hydraulic manifold blocks will be purchased from AAK, and also asked us to send hydraulic manifold blocks with similar dimensions to the United States to test stability and service life.
Patrick and I know each other at the PTC exhibition in Shanghai. He has worked in HAENCHEN hydraulic equipment company in Germany for a long time. The first thing he said when he saw me was that â??I was attracted by the slogan "Hydraulic valve manufacturer of the world's top 500 companies" on your AAK boothâ??. We talked about the hydraulic threaded cartridge valves for more than half an hour, especially introduced the difference of AAK hydraulic threaded cartridge valves on the specific details. He was surprised that the details of AAK had caught up with his local hydraulic valve manufacturers in Germany. Shortly after the exhibition, Patrick emailed us a hydraulic threaded cartridge valve with high parameter requirements. In particular, the durability of the hydraulic threaded cartridge valve should be more than 2 million times. All quality details should be compared with their local suppliers in Germany. The drawings attached to the email indicate the detailed data and working condition requirements. AAK is required to send 12 hydraulic threaded cartridge valve samples within 4 weeks. After analysis and comparison, AAK engineers found that this hydraulic threaded cartridge valve is not only durable for more than 2 million times, but also has high accuracy requirements. In particular, the internal leakage requirement of hydraulic threaded cartridge valve is 2drops / min, which is 60% higher than the international general standard. Although the requirements are high, we are still confident. 4 weeks later, AAK sent 12 hydraulic threaded cartridge valve samples. A month after the hydraulic threaded cartridge valve samples were sent, Patrick emailed that AAK did make him realize that it was different from other hydraulic valve manufacturers. At that time, he emailed to 4 Chinese hydraulic threaded cartridge valve manufacturers and a local manufacturer in Germany. Two of the 4 Chinese hydraulic valve manufacturers gave up directly. Only AAK and another hydraulic thread cartridge valve manufacturer confirmed to make samples. They tested and compared the sample parameters of the three factories. AAK's accuracy and durability are not only much higher than those of its Chinese counterparts, but also benchmarked with their local manufacturer in Germany. Although the quotation of AAK hydraulic threaded cartridge valve is much higher than that of its Chinese counterparts, it still has advantages over the hydraulic threaded cartridge valve purchased locally in Germany. Purchasing from AAK is the best embodiment of cost performance. AAK hydraulic threaded cartridge valve has three absolute advantages and has already surpassed its domestic counterparts. 1. AAK has a high-precision CNC machining center imported from Switzerland and various independent fixtures upgraded and refitted by itself, which eliminates human errors and ensures the first step of accuracy.
Over the past year, Jerome has purchased more than 20 batches of different types of hydraulic valves of test orders from more than 10 hydraulic valve manufacturers in Ningbo, including AAK. Finally, he chose to place the large order of hydraulic flow control valves with AAK, because the packaging details of AAK made him think that the quality of AAK hydraulic flow control valves is the most reliable. Jerome is from a hydraulic equipment company in Italy. He sent an email last week to purchase 2,500 hydraulic flow control valves. I was surprised because Jerome always purchased small orders before. After e-mail communication, it was learned that Jerome has purchased more than 20 batches of different types of hydraulic valve test orders from more than 10 hydraulic valve manufacturers in Ningbo in the past year. There are always some problems, such as time delay and communication delay, especially the packaging of the test order was criticized by his boss. The quality defect of the hydraulic flow control valves purchased last time was complained to the boss by the company's installation engineer. During the assembly process, the installation engineer found that several hydraulic flow control valves could not be screwed into the socket at all, mainly due to obvious bumps at the threads of the hydraulic flow control valves. Jerome requires the original hydraulic flow control valves to be replaced. The manufacturer believes that each hydraulic flow control valve has been pressure tested before leaving the factory and shipped only after it is qualified. The bump was caused by the carelessness of their installers. The installer showed the boss of the damaged package photos to reveal the reason. Some of the packing boxes of the hydraulic flow control valves are deformed, some are broken, and even some of the inner packing poly bags are broken. Those hydraulic flow control valves with bumps were improperly packaged and protected during transportation. Jerome is helpless because of the factory's prevarication. Fortunately, this is just a trial order. Jerome thought of the packaging details of each trial order of AAK. Only the packaging of AAK was different from that of other hydraulic valve manufacturers in Ningbo. At that time, it was only the trial order that he didn't pay attention to the packaging details of AAK. Now he saw the problems caused by improper packaging during transportation from other hydraulic valve manufacturers. He realized that only each trial order of AAK, the packaging received was intact. Later, I told him that because the quantity of trial orders was small, most of them were delivered by express, and it is unavoidable that the parcels will be bumped. AAK will inspect each hydraulic flow control valve separately when leaving the factory. Only the qualified hydraulic flow control valves are put into the bubble bag and then into the corrugated box with the right size,
Erdmann has been a purchaser of German HAWE company for 5 or 6 years and has been doing very well. Last month, the company had a special hydraulic threaded cartridge valve to purchase. Because it is to be used in the Arctic region, the corrosion resistance of hydraulic threaded cartridge valve needs to be very high. The owner asked him to identify the suppliers and approve the samples within 2 months. Erdmann felt that it could be completed within 20 days. He sent the drawings of hydraulic threaded cartridge valves to the original hydraulic valve manufacturers. Only 2 weeks later, he received samples of hydraulic threaded cartridge valves from one factory. The surface gloss of these samples of hydraulic threaded cartridge valves was quite good. The company tested them on the exploration drilling machine and delivered it quickly to the customer. 3 months later, the customer complained that the hydraulic threaded cartridge valve on the hydraulic pump was seriously corroded, some threads were stuck, the equipment could not be started, and the test run was unsuccessful. The owner thought that Erdmann was careless and ignored the use scene of the Arctic region. The owner again asked him to make new samples and do salt spray test inside the company. Actually, Erdmann emphasized that the hydraulic threaded cartridge valve is to be used in the Arctic region. The original supplier said that their hydraulic threaded cartridge valves have good gloss and corrosion resistance, and can be used in the Arctic region. Erdmann communicated with the original hydraulic threaded cartridge valve supplier again, and the reply was that most hydraulic valve manufacturers just adopt the zinc plating process, and he used the nickel plating process which is the highest level of corrosion resistance. Erdmann realized the difficulty of corrosion resistance in the Arctic regions. Erdmann emailed more than 20 hydraulic valve manufacturers who had been contacted before, emphasizing that the hydraulic threaded cartridge valve must be in the highly corrosive environment in the Arctic region, and the service life shall not be less than 9 months. Only 3 hydraulic valve manufacturers said they could have a try, but there was no response from other manufacturers. Erdmann was a little flustered. Erdmann saw AAK hydraulic valve on Google, who supplied to hydraulic pump company in Russia. He felt that AAK might give him a glimmer of hope. He emailed us to ask if we can produce hydraulic threaded cartridge valves to be used in Arctic regions. We directly replied that the components of the valve should be treated by special electroplating process in order to meet the condition in the Arctic regions. After 20 days, AAK sent samples according to his hydraulic threaded cartridge valve drawings. HAWE company conducted salt spray test on samples from all 4 manufacturers, with the corrosion condition twice that of Arctic regions.
When I opened the mailbox this morning, I saw an from , which should be a re-order for the hydraulic relief valve, because he asked about the durability of hydraulic relief valve spool last week. Opening the , it is indeed the need for purchasing a large number of 420 hydraulic relief valves, and requiring 3 years of quality guarantee. is a purchaser of . 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, 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 owner. I received message from on the of can 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 was stimulated and sent us the test order the next day for 4 hydraulic relief valves. also frankly told 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 from 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 for 3 years. Indeed, 3 years later, hydraulic relief valves still worked normally, and the hydraulic relief valves provided by the other two manufacturers had faults in less than 2 years.
When I opened the mailbox this morning, I saw a reorder for 500 pilot hydraulic relief valves from Jimmy. He mentioned that the pilot hydraulic relief valve designed by AAK had been used for 2 years and without any complaints. Jimmy is a purchaser of American company Vickers, responsible for the purchasing of hydraulic parts. 2 years ago, his company encountered a complaint from customer for a hydraulic pump. The customer complained that it screamed after being used for a period of time. After dissecting, their engineer found that there was a problem with the hydraulic relief valve in the hydraulic pump. The owner asked Jimmy to solve the problem as soon as possible. Jimmy sent the hydraulic relief valve back to the original supplier, but the supplier replied that the inspection result was good. Maybe the problem happened during installation. Jimmyâ??s engineers tested the samples by themselves and found that there was no problem with the hydraulic relief valve, but there was also no problem with the installation method and operation. Now Jimmy is depressed. The owner is pushing for status, but he has no clue. He contacted with several local hydraulic valve manufacturers in the United States, and they all replied that there was no problem on the hydraulic relief valve. One day, after browsing AAK website (www.aakindustry.com) in Google, Jimmy sent an email asking if AAK could help analyze the reason. We replied that it would be better for engineers to have video communication on site Jimmy decided to ask Vickers engineers to make a video with AAK engineers the next morning. After more than half an hour of observation, AAK engineers found that once the pressure oil at the inlet, outlet and control port of the hydraulic relief valve fluctuated, it would produce a scream. We got their original samples and drawings, as well as the working parameters of the hydraulic pump. After 15 days, AAK sent a sample of the pilot hydraulic relief valve. A week later, Jimmy e-mailed us that AAK hydraulic relief valve was installed and tested on site for 24 hours, and there was no scream. Jimmy wondered why there was no scream when AAK hydraulic relief valve was used. AAK engineers analyze the cause from the hydraulic impact. After the hydraulic pressure impacts the main valve spool in the hydraulic relief valve, the pressure oil converges through the check valve, resulting in fluid impact and fluctuation, causing the hydraulic relief valve to oscillate, resulting in the instability of the pressure oil at the outlet of the hydraulic pump. Because the pressure oil output by the pump itself has pulsation, the pressure oil output by the pump will fluctuate strongly and arouse the vibration of the hydraulic relief valve. For the natural frequencies of the two hydraulic relief valves are the same, it causes the resonance of the relief valve and the scream occurs.
One morning in the first half of this year, shortly after arrived at the company, the owner asked him to come to his office. He realized whether there was a complaint about the hydraulic valve. He saw that the technical director was also in the owner's office. It turned out that the hydraulic check valve installed on the hydraulic pump had leakage in different proportions. These hydraulic pumps were due to ship in 20 days. The owner asked him to purchase the qualified hydraulic check valve in 40 days, because their customer only gave the company a 4-week extension. The technical director informed that according to the on-site detection, about 20% of the hydraulic check valves had leakage. After dissection, it was found that the gap between the valve body hole and the valve spool of these leaking hydraulic check valves was uneven, and some even exceeded 40m. The gap dimensions are quite different. Sam immediately contacted the original hydraulic valve manufacturer and asked him to replenish 30% to replace those unqualified hydraulic check valves, but he was rejected. Per the original hydraulic valve manufacturer, these hydraulic check valves passed the inspection before delivery and the leaked hydraulic check valves were caused by their improper installation. In the end, the manufacturer didn't even reply to his email. was angry and had to find a new supplier of hydraulic check valve. which made him see the dawn and feel that hydraulic valve is different. He emailed us inquiry about the hydraulic check valve and truthfully informed us of the problems he encountered with the Chinese hydraulic valve manufacturer. After several rounds of and operating conditions provided by , promised him to offer qualified hydraulic check valve samples within 14 days. If the samples are qualified, the 30% of quantity that he needs can be delivered in 4 weeks. After 14 days, received the hydraulic check valve samples. There was no leakage after installation and commissioning, and the gap between the valve body hole and the valve spool of each hydraulic check valve could be stable within a range and uniform in size. The technical department told him that the standard deviation (sigma) accuracy of the clearance dimension of hydraulic check valve was more than 3 times higher than that of the original supplier. was surprised how hydraulic valve was different The whole line of production equipment of hydraulic valve is a high precision machine tool and processing center
Early last month, I saw an email from Mark, the purchasing manager of hydraulic system of Caterpillar, an old friend of ours. The subject of the email is "I need help from AAK, I believe". After reading the email about hydraulic threaded cartridge valve, I understood Mark's embarrassment. A small less-known excavator designed by them at the beginning of this year was not smooth in the commissioning process, the response of the excavation part was slow and the power was not enough. After testing, the technical department found that the measured value of the maximum overflow pressure was lower than the specified value, so it was determined that there was a problem with the hydraulic threaded cartridge valve. Mark communicated with the original hydraulic valve supplier. The supplier mentioned that the hydraulic threaded cartridge valve was sampled according to their company's drawings, and all parameter tests were up to standard. The supplier told the fact. He then could only patiently communicate with the design department to see how to modify the hydraulic threaded cartridge valve design, but the design Department said that there was a problem with the installation of the technical team. The company's design and technology departments prevaricate with each other and Mark are caught in the middle, which is very embarrassing and time is also being wasted. If the owner is angry one day, it is estimated that all 3 parties will be criticized. AAK HYDRAULIC VALVE has always been Mark's most trusted supplier of hydraulic valves. I asked Mark to send us the original design drawings of the hydraulic threaded cartridge valve and the working condition requirements of existing equipment, as well as the problems and data encountered in commissioning. 3 days later, we replied to Mark that we have a new design scheme, and we are 90% sure that we can make the hydraulic threaded cartridge valve that meet the equipment requirements, but it will take 2-3 weeks. On the 3rd day after receiving our sample of the hydraulic threaded cartridge valve, Mark happily informed us that the technical department tested AAK hydraulic threaded cartridge valve, the equipment commissioning was smooth, and the reaction and power of the excavation part were normal. The technical department said that the large goods of this hydraulic threaded cartridge valve can only come from AAK, and other hydraulic valve manufacturers are unreliable. Caterpillar designers are also curious about how AAK HYDRAULIC VALVE redesigns this hydraulic threaded cartridge valve? AAK engineering team tried 30 times to design, sampling and make adjustment to find a breakthrough. A sealing ring groove is arranged between the oil replenishment outlet and the oil replenishment inlet of the oil replenishment valve seat of the hydraulic threaded cartridge valve.
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 Eatonâ??s company. We became Eatonâ??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.
AAK hydraulic pressure valve has no horn hole. In Ningbo, the hydraulic valve production base, few factories are sure to solve the horn hole. AAK uses automatic programming software to program and upgrade the processing technology of hydraulic valve cavity hole. The geometric tolerance of each hole is within 0.02mm. At the same time, small fillet is used to replace the R angle of our peers to transition, which completely avoids the horn hole. Most hydraulic valve manufacturers use manual programming to design the geometric tolerance of cavity hole, which is prone to human error and can not be corrected. At the same time, due to the limitation of operation methods, the transition angle between small holes in the hydraulic pressure valve generally adopts the R angle for transition, which is easy to artificially leave a small space that is not easy to detect, so the horn hole will probably appear. After the hydraulic pressure valve is used for a period of time, the horn hole is easy to leak. What's more troublesome is that the oil stain outside the hydraulic pressure valve is easy to enter the valve spool and damage the whole hydraulic system. Adair, a hydraulic valve purchaser in Scotland, had many contacts with AAK hydraulic valve before, because he pursues low price, there is no cooperation between us. In July this year, he placed an order for hydraulic pressure valve worth 80,000 US dollars to a hydraulic valve manufacturer in Ningbo. 2 months later, the quality of the hydraulic pressure valve failed to meet the standard every time. Adair realized that even if it took another 2 months, the sample still could not be approved. Adair accidentally saw an article from AAK about "horn hole" on the B2B website, he further sourced until he got to the AAK website: www.aakindustry.com, he realized that it was the hydraulic valve manufacturer he had been contacting. When we received Adair's email, we understood the problems and causes of his hydraulic pressure valve. 3 days later, we received the hydraulic pressure valve samples that he asked the original hydraulic valve manufacturer to send, we found that the processing coaxiality of the cavity hole diameter of the combined holes of these hydraulic pressure valves was between 0.03-0.05mm, and there were tool connecting traces at the transition R angle. After we took the video and sent it to him, he understood why the samples of the original hydraulic valve manufacturer were always not approved. After receiving the video, Adair transferred the order of this hydraulic pressure valve to us AAK hydraulic valve the next day. At the same time, Adair also joked that you found the problem, but not means that you are able to solve the problem. How does you AAK hydraulic valve do and make me believe that you can 100% solve these hidden problems.
fabrication of outdoor chairs machines furniture edge banding machine from nepal furniture machine cnc furniture wood designing machine furnitures industrial machine house door machinery machine for door machine pvc furniture modern furniture machine natural wood door making machine natural wood door making machine line 2021 plywood bending machine furniture pvc cabinet door machine pvc door profile machine table saw machine wood cutting machine furniture teing wood working machinery for furniture upvc door window profile making machine upvc windows and doors process machinery wood chair production machine wood door machine production line wooden door frame machine wpc door manufacturing machine wpc solid door making machine wpvc door machine 3d furniture machine furniture cnc machine furniture engraving machine furniture laminating machine furniture latest machine furniture manufacturing machines furniture panel production machine furniture product line furniture production line wood machine furniture pvc edge band making machine home cabinet edge banding machine home furniture machinery kitchen cabinet machine kitchen cabinet making machines line production furniture machine cabinet machine for furniture machine for make cabinets for kitchen machine furniture machine made door machine tool cabinet machine tools for furniture machine wood furniture making chair machine making wood doors machine modular furniture machines multi function cnc machine for cabinets multi head cnc machine for cabinets office chair making machines outdoor furniture production line panel furniture making machin panel furniture production line patio furniture making machine pvc cabinet board machine pvc door manufacturing machine pvc doors and windows manufacturing machines pvc furniture edge banding machine pvc furniture edge strip machine sliding door machinery upvc door making machine upvc machines doors upvc window and door making machine window door machine wood designs cnc machine furniture wood door maker machine wood panel furniture-making-machine wooden door machines wooden doors engraving machine
Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. Quartz is a kind of mineral being formed into crystals due to extreme pressure. As a chemical compound, it consists of one-part silicon and then two parts oxygen. It is considered as the most abundant mineral that can be found at Earthâ??s surface. Through its unique properties, it became among the most useful minerals. Quartz does not form any stone blocks, and it naturally exists in clusters It has a hardness of seven on the Mohs Scale which makes it very durable. It is highly resistant to both mechanical and chemical weathering. The beauty of quartz is that it is very flexible where it can be used in different applications, from interior design to pieces of jewelry to larger industry. Thus, everyone can expect for high-end use, and separate benefits since quartz undergo a thorough and careful manufacturing process. Identification In most cases quartz is easy to identify by its combination of the following properties: - hardness (easily scratches glass, also harder than steel) - glass-like luster - poor to indistinct cleavage - conchoidal fracture in crystals, in massive specimens the fracture often looks irregular to the naked eye, but still conchoidal at high magnification Uses of Quartz 1. In Glass Making â?? Geological processes have occasionally deposited sands that are composed of almost 100% quartz grains. These deposits have been identified and produced as sources of high purity silica sand. These sands are used in the glassmaking industry. Quartz sand is used in the production of container glass, flat plate glass, specialty glass, and fiberglass 2. As an Abrasive â?? The high hardness of quartz, seven on the Mohs Scale, makes it harder than most other natural substances. As such it is an excellent abrasive material. Quartz sands and finely ground silica sand are used for sand blasting, scouring cleansers, grinding media, and grit for sanding and sawing. 3. As a Foundry Sand â?? Quartz is very resistant to both chemicals and heat. It is therefore often used as a foundry sand. With a melting temperature higher than most metals, it can be used for the molds and cores of common foundry work. Refractory bricks are often made of quartz sand because of its high heat resistance. Quartz sand is also used as a flux in the smelting of metals. 4. In the Petroleum Industry Quartz sand has a high resistance to being crushed. In the petroleum industry, sand slurries are forced down oil and gas wells under very high pressures in a process known as hydraulic fracturing. This high pressure fractures the reservoir rocks, and the sandy slurry injects into the fractures. The durable sand grains hold the fractures open after the pressure is released. These open fractures facilitate the flow of natural gas into the well bore.
Double-layer fiberglass tube, exclusive supply by SUNBOW, you can not find other suppliers in China When it comes to fiberglass tubes, domestic products are all the same, all are single-layer fiberglass tubes. Only SUNBOW is unique in launching double-layer fiberglass tubes. Exclusive supply, you can't find other suppliers in China. At present, the fiberglass tubes provided by domestic counterparts are all single-layer fiberglass tubes without exception. Some peers even changed the concept and called the thickened single-layer fiberglass tube as a double-layer fiberglass tube to confuse customers. However, SUNBOW developed such a double-layer fiberglass tube at the request of the customer, and the customer was 100% satisfied. A customer of a certain brand of motors in Brazil has been searching for double-layer fiberglass tubes in the Chinese market for a long time. More than 95% of the suppliers can provide thickened single-layer fiberglass tubes, and the customers are not satisfied. The customer saw our booth at the Berlin Exhibition in Germany in 2016. The customer wants to use double-layer glass fiber tube insulation on a motor. Ask if we have similar sleeves. Single-layer glass fiber tube can be used as Base, add another layer. At that time, we did not have such a casing, and the entire industry had not heard of such a practice, and the cost would be high. Customers have found several suppliers in China, and they do not have similar double-layer fiberglass tubes, and can only use thickened single-layer fiberglass tubes for testing. However, even the thickened single-layer fiberglass tube is still thin. Once the motor rotates, it is easy to break, which leads to the need to re-thread the motor. After understanding the customer's application, we promised the customer: "We can try to develop the customer's needs, but it takes a week." After a week, we submit two samples to the customer for testing, one is the thickened single layer on the market Fiberglass tube, cheap price and short delivery time. The other is double-layer glass fiber tube, which is expensive and has a long delivery time. However, both samples meet customer's application requirements. At that time, we were able to complete the research and development of a new type of double-layer glass fiber tube in seven days, and the performance reached the level of customer satisfaction, which was beyond our expectations. After testing, the customer finally chose this double-layer fiberglass tube, even if the price is expensive, the customer also chose it.
