LeviTech magnetic bearing
A non-contact shaft with an online UPS that protects the bearing during a power cut.
LG · Chillers 
LG Oil-Free Centrifugal Chiller
Magnetic or air bearings, no oil circuit at all. Precise 0.1 Hz speed control gives big savings when the building is part-loaded.
51%better part load*
0.1Hz control
73dB(A)
Key features
Simpler maintenance
No oil, oil filter or oil piping to service.
Quiet
Noise down to 73 dB(A) under optimum conditions.
Why it stands out
0 oil
Air bearing
LG air bearing
Lower friction for 100–300 TR plants.
51 %
Part-load efficiency
51% better than a fixed-speed two-stage chiller at 25% load (500 RT, AHRI conditions).
Specifications
| Magnetic bearing | 200 ~ 1,100 TR single; 400 ~ 2,200 TR twin (special order) |
|---|---|
| Air bearing | 100 ~ 300 TR |
| Speed control | 0.1 Hz steps |
| Part load | 51% better vs fixed-speed 2-stage (25% load, 500 RT) |
| Noise | Down to 73 dB(A) |
