Magnetic Bearing Centrifugal Chiller
Oil-free magnetic bearing · 130–1800 RT
Above roughly 400 RT the plant room economics change: most hours are part-load hours, and an oil-free magnetic-bearing centrifugal holds its efficiency down there in a way a screw machine cannot. GPTECH supplies this range as an authorised Midea KWING dealer — sizing it against your load profile, integrating it with the pumps, towers and controls, and carrying the service afterwards. The machine is Midea’s; the plant room is ours.
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Oil-free by design
Magnetic bearings remove the oil circuit, and with it the efficiency loss oil in the heat exchanger causes.
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Efficiency where the hours are
Manufacturer-rated AHRI-IPLV up to 12.03 and COPc up to 6.99 across the tabled range.
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Turns down to 10 %
A single compressor runs to 10 % of duty; multi-compressor machines to 10 % divided by the compressor count.
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Selected and serviced here
GPTECH sizes, integrates and services the machine; the manufacturer warranty stands behind the hardware.
Technical specifications
| Brand | Midea KWING (supplied by GPTECH) |
|---|---|
| Type | Magnetic bearing, variable frequency, centrifugal |
| Cooling capacity | 457 – 6,329 kW (130 – 1,800 RT) |
| Refrigerant | R134a; R1234ze / R513A / R515B on some models |
| COPc | 6.10 – 6.99 |
| AHRI-IPLV | 10.27 – 12.03 |
| Chilled water | 3 – 28 °C (to −8 °C on ice storage) |
| Condenser water | 12 – 40 °C |
| Turndown | To 10 % per compressor |
| Noise | 70 – 75 dB(A) |
| Control | 10-inch colour HMI, ±0.1 °C leaving water |
| Communication | RS485 Modbus RTU, BACnet optional |
| Rating basis | GB/T 18430.1-2024 · AHRI 550/590 (I-P)-2023 |
Specifications are indicative and configured per project. Contact us for a certified datasheet.
Typical applications
Related products
Tell us the duty. We will size it.
Load, ambient, space and schedule — that is all we need to come back with a proposal.