| Message: | The original cartridge valve manufacturer could not improve the cone hole roundness and surface roughness of the hydraulic cartridge relief valve. AAK used 3 skills to ensure that the cone hole roundness of the hydraulic cartridge relief valve was within 0.003, the surface roughness was Ra0.6, and it was linear sealed, without leakage, helping Salim out of the after-sales trouble that has stumped him for in 3 months.
Salim is from Chile. A batch of hydraulic cylinders of their company have been complained by customers that they are unstable. After checking, it was found that the hydraulic cartridge relief valve was leaking, which caused the abnormal operation of the oil cylinder. The root cause was the roundness of the cone hole and the surface roughness. The engineer requires to replace the hydraulic cartridge relief valve, and the cone hole roundness is within 0.005, and the surface roughness is below Ra0.8, which can completely solve the hidden danger. The original manufacturer of the hydraulic cartridge relief valve said that the new requirements is 50% higher than before, but he was willing to try. He made samples twice, but still failed to meet the standard. 3 months passed without any result. The customer was unhappy and Salim was worried.
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