After Comparing More than 20 Chinese Hydraulic Valve Block Manufacturers, Richard Said That Only AAK
During Power transmission and control technology exhibition in Shanghai last year (PTC Asia), Italian ATOS company asked Richard to find a qualified hydraulic valve block supplier from Chinese hydraulic valve block manufacturers through the exhibition and supply for the branch in Malaysia. He spent a whole day at the exhibition. He went into almost every booth of Chinese hydraulic valve block manufacturers and selected more than 20 Chinese hydraulic valve block manufacturers. He communicated with us AAK for more than half an hour, and took some data with him. When he left, he said that AAK was the Chinese hydraulic valve block manufacturer he spent the most time today. After the exhibition, he would test samples of AAK hydraulic valve block. He would select 6 hydraulic valve block manufacturers from the more than 20 Chinese hydraulic valve block manufacturers he found.
1 week later, Richard sent us the sample drawings and working condition requirements of the hydraulic valve block. This hydraulic pump of ATOS should not only meet the international standards of ISO6020 and 6022, but also have a peak pressure of 450bar. At the same time, it has accuracy requirements for all surfaces of the hydraulic valve block.
2 weeks later, Richard received hydraulic valve block samples from 6 Chinese hydraulic valve block manufacturers. In general, there will be news within 2 weeks after the sample is sent. We asked Richard for feedback but just got reply of waiting for results. We thought it to be no results any more. 1 month later, Richard emailed that the chief engineer of the Malaysian branch advised that 3 of the 6 Chinese hydraulic valve block manufacturers met the requirements, but the accuracy of AAK hydraulic valve block was much higher than that of the other 2 Chinese hydraulic valve block manufacturers. AAK reassured them.
The surface roughness of AAK hydraulic valve block flange reached Ra0 3, which is 30% more accurate than the other 2 Chinese hydraulic valve block manufacturers. At the same time, the perpendicularity between the screw hole of the pipe joint and its external fitting surface is Grade 8. The roughness of the mounting hole is Ra0 5, which is also 30% more accurate than the other 2 Chinese hydraulic valve block manufacturers. The surface roughness of O-ring groove is Ra1 5, while the other Chinese hydraulic valve block manufacturers are Ra5.0-6.5. These data of AAK have been benchmarked with their old hydraulic valve block suppliers in Germany. Richard quickly made a report to the boss according to AAK quotation and production time. The accuracy of the hydraulic valve block is comparable with that of the original supplier, but the price is 20% cheaper, and the lead time is 30-40% shorter.
Richard wondered why among so many Chinese hydraulic valve block manufacturers, only AAK benchmarked the German factory?
Before processing, AAK uses German COMET flaw detector to detect the blank of hydraulic valve block to ensure that the internal structure of the hydraulic valve block is dense and free of interlayer, trachoma and other defects. This step is generally ignored by other manufacturers. Then select the composite tool for processing, and combine two or more similar or different hole processing tools into one special tool. One tool can process the threaded bottom hole, 45°, 15°, R0.1 chamfering and external counterbore at the same time, and it can complete multiple processes such as drilling, expanding, reaming, spot facing and boring in the process of one machining. We don\'t know whether there is a second manufacturer mastering these technical essentials, maybe, maybe not.
The boss was surprised that Richard found such a Chinese hydraulic valve block manufacturer and asked him to test an order for 500 hydraulic valve blocks. Richard asked AAK to guarantee on time delivery. The boss said that if it went well, he would be given a promotion and a raise.
AAK is a trusted hydraulic valve block manufacturer in China. Welcome to contact us for cooperation.
AAK HYDRAULIC VALVE (128) 2021-12-29
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