The Dorin AU2-H751CS is a high-capacity semi-hermetic reciprocating compressor engineered for negative temperature (low-temperature) refrigeration systems. It is ideal for heavy-duty applications such as industrial freezing, cold chain logistics, and frozen food storage requiring consistent and powerful cooling performance.

General Description
As part of Dorin’s AU2-H series, the H751CS delivers robust performance and reliability. Its semi-hermetic design allows for straightforward maintenance and stable operation in continuous low-temperature environments. The compressor is designed to offer high energy efficiency while maintaining strong cooling capacity.

Key Specifications

• Model: AU2-H751CS

• Compressor Type: Semi-hermetic, reciprocating

• Application: Negative temperature (low-temp) refrigeration

• Cooling Capacity: Approx. 70–85 HP (depending on system and refrigerant)

• Displacement: Approx. 75.1 m³/h

• Voltage: 380–420V / 3Ph / 50Hz

• Refrigerants: R-404A, R-507, R-448A, R-449A, and other low-temperature refrigerants

• Oil Type: POE (polyolester)

• Motor Protection: Built-in thermal overload protection

• Usage: Suitable for large-scale industrial refrigeration, freezing systems, and deep-cold storage facilities

Conclusion
The Dorin AU2-H751CS offers excellent reliability, energy efficiency, and performance—making it a trusted solution for demanding negative temperature refrigeration applications.