The Dorin AU2-H503CS is a powerful semi-hermetic reciprocating compressor built for negative temperature (low-temperature) refrigeration systems. It is ideally suited for industrial cold storage, deep-freezing processes, and large-scale frozen food logistics requiring consistent and reliable performance.

General Description
Part of Dorin’s AU2-H series, the H503CS combines robust construction with high cooling capacity and efficiency. Its semi-hermetic design ensures long service life, ease of maintenance, and dependable operation under continuous low-temperature workloads.

Key Specifications

• Compressor Type: Semi-hermetic, reciprocating

• Application: Negative temperature (low-temp) refrigeration

• Cooling Capacity: Approx. 45–55 HP (depending on refrigerant and system configuration)

• Displacement: Approx. 50.3 m³/h

• Voltage: 380–420V / 3Ph / 50Hz

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

• Oil Type: POE (polyolester)

• Motor Protection: Built-in thermal overload protection

• Usage: Ideal for industrial freezing systems, food preservation, and cold logistics

Conclusion
The Dorin AU2-H503CS is a reliable and efficient solution for demanding low-temperature refrigeration applications, delivering robust performance and energy efficiency for large-scale operations.