For Hydraulic Needle Valves with big aperture and accuracy below 1.0μm, AAK replaced the Greek hydra
Last Friday, we received an annual order of 3,600 hydraulic needle valves from Paschalis, probably the new large-scale combine harvester of their company won a large order at the exhibition. Paschalis is from Greece and has been cooperating with AAK for 5 years. At the beginning of this year, the newly developed harvester of their company plans to appear at the agricultural machinery exhibition. In order to shorten the development time, they asked a local hydraulic needle valve manufacturer to make samples. The test run was not smooth, and the flow of the hydraulic system is unstable, resulting in the low accuracy of the equipment action. Their engineer judged that the processing accuracy of the orifice diameter of the hydraulic needle valves did not meet the standard. The hydraulic needle valve manufacturer replied that this is a large flow hydraulic needle valve, and the orifice is also a large aperture, which is difficult to process. At present, the equipment can only guarantee the accuracy like the sample.
Paschalis had to find a new supplier of hydraulic needle valves. And contacted more than 10 local manufacturers. Most of them said that they are not able to make the hydraulic needle valves with this kind of large aperture and accuracy below 1.0μm. Only one manufacturer can guarantee it, but it takes 3 months to develop, and will miss the exhibition. The engineer has pushed for the progress for several times, but Paschalis has not determined the manufacturer yet, so he is in a hurry.
His supervisor reminded him that purchasing hydraulic needle valves from overseas may be faster and more awesome than domestic manufacturers. At this moment, Paschalis thought of AAK, and immediately sent an email for inquiry, with the hydraulic needle valve drawing attached, specifically stating that this hydraulic needle valve has a large aperture, but the accuracy needs to be within 1.0μm. Moreover, only 1 month can be given for development. After discussion, our technical team replied that the samples would be sent within 30 days. 2 weeks after the samples were sent, Paschalis emailed us that their test run was very smooth, and their engineers also specially tested the large aperture of AAK hydraulic needle valves, all with an accuracy below 1.0μm. Next, they can rest assured to hype it up at the exhibition, and AAK can wait for the annual large order of the hydraulic needle valves.
In recent years, some customers of AAK have higher and higher requirements for the accuracy of the large flow hydraulic needle valves with large aperture. Our machining equipment, especially honing equipment, also keeps pace with the times. At present, RS series single stroke sequential honing machine imported from Switzerland adopts the casting structure of base, column and headstock, with stable accuracy; Each spindle is equipped with a separate servo motor, which can feed back torque in real time; The maximum honing diameter can reach 50mm and 80mm, the maximum honing depth can reach 150mm, the stroke speed is 20m/min, and the machining accuracy is as high as 0.5-0.8μm. It is especially suitable for processing the large orifice of large flow and high-precision hydraulic needle valves.
AAK hydraulic needle valve has defeated Greek hydraulic cartridge valve manufacturers with accuracy. You can also have a small try!
AAK HYDRAULIC CARTRIDGE VALVES (308) 2022-08-04
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