The magnetic refrigeration compressor system is designed for commercial and industrial cooling applications requiring high-speed operation, efficient direct drive, and flexible refrigeration capacity. It combines a permanent magnet synchronous motor with active magnetic suspension bearings to support high-speed compressor operation while eliminating conventional mechanical bearing contact.
The system covers a designed refrigeration capacity range of 316–3520 kW, with supply voltage options of 380 V, 480 V, 6 kV, and 10 kV. Depending on the model, compressor speed can reach up to 24,000 rpm, with a maximum pressure ratio of 3.5.
Wide Operating Range for Refrigeration Systems
The compressor platform is designed around a nominal evaporating temperature of 6°C and a condensing temperature of 36°C. Multiple capacity configurations allow the system to accommodate different cooling requirements, from approximately 90 RT to 1000 RT.
Key operating parameters include:
| Parameter |
Specification |
| Supply Voltage |
380 V / 480 V / 6 kV / 10 kV |
| Designed Refrigerating Capacity |
316–3520 kW |
| Maximum Speed |
Up to 24,000 rpm |
| Maximum Pressure Ratio |
3.5 |
| Nominal Evaporating Temperature |
6°C |
| Nominal Condensing Temperature |
36°C |
| Refrigerant |
R134a |
| Compression Stages |
2 |
| Rated Pressure Ratio |
2.5 |
| Designed Pressure |
1.3 MPa |
Multiple Cooling Capacity Configurations
The magnetic refrigeration compressor is available across a broad capacity range, with whole-unit cooling capacities from 100 RT to 900 RT in the listed configurations. The corresponding refrigeration capacity range extends from 90–110 RT up to 800–1000 RT.
Under the stated operating conditions, the energy efficiency ratio ranges from 5.8 to 6.4 depending on the selected model.
| Whole-Unit Cooling Capacity |
Refrigeration Capacity Range |
Designed Capacity |
| 100 RT |
90–110 RT |
352 kW |
| 120 RT |
110–132 RT |
422 kW |
| 150 RT |
135–165 RT |
528 kW |
| 190 RT |
170–215 RT |
668 kW |
| 255 RT |
225–290 RT |
897 kW |
| 340 RT |
300–390 RT |
1196 kW |
| 450 RT |
400–500 RT |
1583 kW |
| 570 RT |
510–630 RT |
2005 kW |
| 710 RT |
640–780 RT |
2497 kW |
| 900 RT |
800–1000 RT |
3165 kW |
High-Speed Two-Stage Compression
The compressor uses a two-stage compression configuration across the listed models. Rated speed varies according to cooling capacity, from approximately 8,800 rpm to 23,000 rpm, while maximum operating speeds range from 9,800 rpm to 24,000 rpm.
The pressure ratio is rated at 2.5, with a maximum pressure ratio of 3.5. This configuration provides flexibility for refrigeration systems operating under different load requirements.
Permanent Magnet Direct-Drive Motor
At the heart of the system is a permanent magnet synchronous motor configured for direct drive. Depending on the selected compressor, rated motor power ranges from 56 kW to 480 kW, while maximum motor power reaches up to 600 kW.
The direct-drive configuration is paired with active magnetic suspension bearings, allowing the high-speed rotating assembly to operate without conventional mechanical bearing contact.
Motor Configuration
| Item |
Specification |
| Motor Type |
Permanent Magnet Synchronous Motor |
| Bearing Type |
Active Magnetic Suspension Bearing |
| Cooling Method |
Refrigerant Cooling |
| Starting Method |
Variable Frequency Start |
| Protection Class |
IP54 |
| Power Supply |
380–460 V, 3P, 50/60 Hz |
| Shaft-End Structure |
Double Shaft Extension, Horizontal Opposed |
| Rated Motor Power |
56–480 kW |
| Maximum Motor Power |
90–600 kW |
| Rated Speed Range |
7,800–24,000 rpm |
Refrigerant-Cooled High-Speed Motor
The motor uses refrigerant cooling as part of the compressor system. This integrated cooling approach is designed for the operating environment of the refrigeration compressor while maintaining a compact system arrangement.
Variable-frequency starting is used to control the motor during startup, supporting the high-speed operating characteristics of the permanent magnet drive system.
Model-Specific Refrigeration Performance
The compressor series provides different suction flow rates and supplemental gas flow rates according to cooling capacity. Suction volume flow ranges from 426 to 3,834 m³/h, while supplemental gas volume flow ranges from 36 to 300 m³/h across the listed configurations.
| Capacity |
Suction Flow |
Supplemental Gas Flow |
Suction Volume Flow |
| 352 kW |
2.06 kg/s |
0.25 kg/s |
426 m³/h |
| 422 kW |
2.26 kg/s |
0.28 kg/s |
468 m³/h |
| 528 kW |
3.09 kg/s |
0.38 kg/s |
642 m³/h |
| 668 kW |
3.93 kg/s |
0.46 kg/s |
816 m³/h |
| 897 kW |
5.25 kg/s |
0.64 kg/s |
1,086 m³/h |
| 1,196 kW |
7.00 kg/s |
0.85 kg/s |
1,446 m³/h |
| 1,583 kW |
9.26 kg/s |
1.10 kg/s |
1,914 m³/h |
| 2,005 kW |
11.73 kg/s |
1.43 kg/s |
2,430 m³/h |
| 2,497 kW |
14.61 kg/s |
1.78 kg/s |
3,024 m³/h |
| 3,165 kW |
18.52 kg/s |
2.26 kg/s |
3,834 m³/h |
Flexible Frame Configurations
Different overall structural frames are available across the compressor range, including A2, B1, B2, C, and D configurations. This allows the equipment arrangement to correspond to different compressor capacities and system configurations.
With multiple voltage options, cooling capacities, motor power levels, and speed ranges, the platform can be configured for different refrigeration system requirements.
Magnetic Refrigeration Compressor for Industrial Cooling
Combining a two-stage compressor, permanent magnet synchronous motor, active magnetic suspension bearings, refrigerant cooling, and variable-frequency starting, this magnetic refrigeration compressor platform is designed for high-speed refrigeration applications.
Its broad capacity range of approximately 90–1000 RT, R134a refrigerant configuration, and multiple electrical supply options provide a flexible foundation for large-scale cooling equipment and refrigeration system integration.
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