Hanbell’s compressors feature advanced two-stage compression technology that significantly improves energy efficiency by lowering the compression ratio at each stage, reducing backflow leakage, and enhancing volumetric efficiency. This ensures the entire series meets the top energy efficiency standards under GB19153-2019. The compressors use an optimized integrated structure for the two-stage compression unit, which minimizes internal losses. Internal oil circuit atomization spray cooling lowers the second-stage suction temperature, while a thoughtful oil return design helps prevent shaft seal leakage. Built with Hanbell’s precision rotor profile—crafted using German manufacturing equipment and verified on a three-dimensional measuring bed—these compressors offer excellent dimensional accuracy. The large rotor’s low-speed design contributes to reduced noise, minimal vibration, and greater operational stability. Additionally, the high-load-resistant build, premium bearings, and shared load between two compression stages extend bearing life, enhancing the overall durability and reliability of the machine.