The Dorin AU4-H2900CS is a heavy-duty semi-hermetic reciprocating compressor specifically designed for negative temperature (low-temperature) refrigeration systems. It is built to support large-scale industrial freezing operations, cold logistics centers, and deep-freeze storage where continuous and powerful cooling is essential.

General Description
As one of the largest models in the AU4-H series, the H2900CS delivers exceptional cooling capacity and efficiency. Its semi-hermetic design ensures ease of maintenance, strong operational reliability, and durability under high-load, low-temperature conditions.

Key Specifications

• Compressor Type: Semi-hermetic, reciprocating

• Application: Negative temperature (low-temp) refrigeration

• Cooling Capacity: Approx. 270–300 HP (depending on refrigerant and application)

• Displacement: Approx. 290.0 m³/h

• Voltage: 380–420V / 3Ph / 50Hz

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

• Oil Type: POE (polyolester)

• Motor Protection: Integrated thermal overload protection

• Usage: Ideal for deep-freeze tunnels, high-capacity cold rooms, and industrial refrigeration plants

Conclusion
The Dorin AU4-H2900CS is a high-efficiency, industrial-grade compressor built to deliver superior performance, reliability, and durability in the most demanding negative temperature environments.