Energy‑saving by 30~50% Air‑bearing Centrifugal Chiller
Traditional screw and magnetic levitation chillers have high maintenance costs and energy consumption? This series features our self-developed fourth-generation dynamic gas bearing, running 100% oil-free, with no need for lubricating oil or an external air supply system. Compared to conventional units, it saves 30%-50% energy, has a start-stop lifespan of over 100,000 cycles, and requires zero daily maintenance. With a falling-film evaporator and full variable frequency stepless adjustment, it's perfect for data centers, precision factories, commercial buildings, and air-supported venues that need constant cooling. It uses eco-friendly R134a refrigerant, and all models exceed the national top-tier energy efficiency standards.
Basic Introduction of the Product
This device uses a dynamically pressurized gas-lubricated permanent magnet synchronous two-stage centrifugal compressor as the core power source, paired with a high-efficiency falling film evaporator, imported Danfoss / CAREL control valve set, and a PLC bilingual control system. It's specially developed for commercial central air conditioning, industrial process cooling, and data center temperature-controlled environments.
Unlike magnetic levitation, static gas bearings, or screw chillers, it relies on the rotor's high-speed rotation to automatically form an air film in the bearing wedge gap, starting from zero speed without needing external air sources, electromagnetic coils, or lubrication circuits. This greatly simplifies the machine structure, lowers failure rates, and significantly reduces long-term operating costs.
The whole machine has an IP54 protection rating with a fully enclosed cabinet, ensuring stable operation in high-humidity factories or machine rooms. Operating noise is ≤75dB (A), which is more than 15dB lower than gear-driven centrifugal chillers.
Applicable refrigerant: eco-friendly R134a, meeting global environmental standards for refrigerants with no risk of ozone layer damage.
Core Advantages
1.100% Oil-Free & Maintenance-Free No oil pump, oil separator or filter. Zero friction during operation, 100,000+ start-stop lifespan, no annual oil replacement required.
2.Ultra High Energy Efficiency Two-stage compression + permanent magnet direct drive. Max COP=6.47, IPLV=8.67, save 20-30% electricity; extra investment recovered within 1-2 years.
3.±0.1℃ Precision Temperature Control 10%-100% stepless frequency conversion, stable cooling for precision labs, pharmaceutical and electronic workshops, max chilled water outlet up to 30℃.
4.Falling Film Evaporator 40% less refrigerant filling volume, higher heat exchange efficiency, no heat loss from oil accumulation.
5.Simplified & Reliable System No external air compressor or complex magnetic sensors; avoid air leakage, sensor breakdown and multi-unit electromagnetic interference.
6.Wide Stable Load Range Frequency + IGV dual regulation, runs smoothly under fluctuating 10%-100% load without surge or frequent restart.
7.Full Safety Protection High/low pressure, water flow, anti-freezing, phase loss, vibration monitoring (0.1μm accuracy), bilingual fault display.
8.Compact & Low Noise 20% smaller than traditional centrifugal compressors; 75~85dB(A) noise at 1m, no complex sound insulation needed.
Quick Comparison: Air Bearing VS Magnetic VS Static Air Bearing
| Item | Our Dynamic Air Bearing | Magnetic | Static Air Bearing |
|---|---|---|---|
| Auxiliary Parts | No oil, no extra air supply | Oil-free, complex sensors | Need matching air compressor |
| Maintenance | Zero daily upkeep | High repair cost, factory return | Regular pipeline maintenance |
| Extra Power Loss | None | Continuous magnetic power consumption | Air supply power waste |
| Start-stop Life | ≥100,000 cycles | Limited cycles, fragile magnetic steel | Medium lifespan |
| Total Operation Cost | Low long-term cost | High purchase & repair cost | Extra air compressor expense |
FAQ
Q1: Better than magnetic levitation chiller? A: Lower long-term cost, no expensive sensor maintenance, electricity savings recover extra cost within 1-2 years.
Q2: Need regular oil change? A: No, full oil-free design removes all lubrication components.
Q3: Can it run under low 10% load? A: Yes, dual regulation avoids frequent start-stop.
Q4: Suitable for high-temp process cooling? A: Yes,0- 35℃ chilled water output.
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