90KW VSD Direct-driven Water Cooling Oil-free Rotary Screw Compressor
AIRERA 90kW VSD Direct-driven Water Cooling Oil-free Screw Compressor is a premier power solution engineered for zero-emission and high-efficiency modern manufacturing. Strictly adhering to ISO Class 0 Oil-free standards, it ensures a clean production environment, safeguarding the critical processes of pharmaceutical and food industries. With advanced VSD Direct-driven technology, the system adjusts output in real-time, significantly optimizing start-up energy and reducing electricity costs by over 35%. Combined with an industrial-grade water cooling structure and smart IoT control, it delivers consistent, dry, and pure air pressure even under continuous heavy-duty cycles, helping you achieve a breakthrough in both green production and cost management.
Advantages of OGFD Air Screw Compressor:
- Constant Voltage and Power Saving

- 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 OWFD-90D A/B/CVP |
|---|---|---|
| Free air delivery | m³/min | 9.3-15.5|8.4-14.0|7.5-12.5 |
| 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 | ℃ | 2-40 |
| Inlet status - Pressure | MPa | Atmospheric pressure |
| Inlet status - Relative humidity | ≤90% | |
| Noise Level | dB(A) | ≤72 |
| Drive rotor speed | rpm | 3000 |
| Compressed air outlet temperature | ℃ | Ambient temperature+15 |
| Cooling water flow | L/min | 250 |
| Control mode | Intelligent controller | |
| Safety valve set pressure | MPa | 0.77 ~ 1.10 |
| Lubricating water volume | L | 180 |
| Compressed air outlet connection | G2 | |
| Dimension - L | mm | 1950 |
| Dimension - W | mm | 1350 |
| Dimension - H | mm | 1580 |
| Net Weight | kg | 1850 |
| Motor - Model | TYCP225M-8 | |
| Motor - Speed | rpm | 3000 |
| Motor - Rated Power | KW | 90 |
| Motor - Service factor | 1.2 | |
| Motor - Protection type | IP55 | |
| Motor - Efficiency | IE5 | |
| Motor - Startup mode | Frequency conversion starting | |
| Motor - Voltage | V | 400(Special on request) |
| Motor - Frequency | Hz | 50-200(Special on request) |
| Motor - Rated current | A | 152 |
| Motor - Weight of motor | kg | 295 |

Yes. The system is designed for heavy-duty use, featuring shell-and-tube coolers with large heat exchange surface areas. Even in high ambient temperatures, it maintains precise thermal control via water flow adjustment, ensuring no overheating shutdowns.
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