1. The machining accuracy of the product sealing surface reaches IT7 grade, with a flatness error of ≤0.03mm. Combined with precision parting technology, there are no gaps at the casting joints, ensuring zero refrigerant leakage in the compressor and maintaining stable cooling/heating efficiency.

2. The overall structure of the casting has been optimized mechanically, with wall thickness uniformity error ≤5%, and solidification shrinkage stress controlled to reduce vibration amplitude when the compressor operates at high speeds (above 6000 r/min), lowering the overall machine noise by 3-5dB.