185KW Direct-driven Water Cooling Oil-free Rotary Screw Compressor
AIRERA redefined industrial standards with the 185kW Direct-Driven Oil-Free Screw Compressor. This high-performance unit delivers 100% oil-free air (ISO Class 0), making it the ideal choice for high-demand sectors such as precision electronics and large-scale pharmaceutical manufacturing. By utilizing a 1:1 direct-drive configuration, we maximize energy transmission while minimizing vibration and mechanical wear. The advanced water-cooling system provides superior thermal management, ensuring stable, continuous operation even in extreme high-load conditions. With AIRERA’s smart efficiency technology, you benefit from significantly reduced operational costs and a reliable, eco-friendly solution that powers your long-term industrial growth.
Advantages of OGFD Air Screw Compressor:
- Air filter

- Relief valve
The independently designed unloading valve (Patent No.: ZL200520058468.2), specifically engineered for vortex characteristics, enables fully sealed operation in screw compressors, ensuring stepless air delivery from 0 to 100%.
- Patented High-Efficiency Compressor Block
The compressor block is constructed from 304L stainless steel,featuring a world-class sealing system that integrates mechanical seals,an air curtain chamber, labyrinth seals, and a bypass channel into a single unit.
| ITEM | UNIT | MODEL OGFD-185 |
|---|---|---|
| Free air delivery | m³/min | 30.0-25.0 |
| Max. working pressure | MPa | 0.7-1.0 |
| Compressor type | Oil-free screw compressor | |
| Cooling type | Wate cooling | |
| Driven type | Direct driven | |
| Inlet status - Temperature | ℃ | ≤45 |
| Inlet status - Pressure | MPa | Atmospheric pressure |
| Inlet status - Relative humidity | ≤90% | |
| Noise Level | dB(A) | ≤77 |
| Drive rotor speed | rpm | 2990 |
| Compressed air outlet temperature | ℃ | Ambient temperature+15 |
| Compressed Inlet temp. | ℃ | 2-40 |
| Cooling water flow | m3/min | 420 |
| Control mode | Intelligent controller | |
| Safety valve set pressure | MPa | 0.77 ~ 1.10 |
| Lubricating water volume | L | 300 |
| Compressed air outlet connection | DN100 | |
| Dimension - L | mm | 2860 |
| Dimension - W | mm | 1600 |
| Dimension - H | mm | 1860 |
| Net Weight | kg | 4500 |
| Motor - Model | Y2315L1-2 | |
| Motor - Speed | rpm | 2990 |
| Motor - Rated Power | KW | 185 |
| Motor - Service factor | 1.2 | |
| Motor - Protection type | IP55 | |
| Motor - Efficiency | IE3 | |
| Motor - Startup mode | ʏ-Δ starting | |
| Motor - Voltage | V | 380 |
| Motor - Frequency | Hz | 50 |
| Motor - Rated current | A | 280 |
| Motor - Weight of motor | kg | 1080 |

Yes, when equipped with our optional VSD (Variable Speed Drive) technology, the 185kW model can precisely adjust its motor speed to match your actual air consumption. This prevents "unloaded" running time, further optimizing energy efficiency and reducing mechanical stress during low-demand periods.
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