Our best air compressor, the 75HP oil-cooled variable frequency screw compressor, is designed to deliver high efficiency and reliable performance for industrial applications. With oil cooling and a variable frequency drive (VFD), it reduces energy waste while maintaining stable operation. In addition, its robust structure makes it suitable for long-hour and heavy-duty use in industries such as manufacturing and construction.
Air Dryer Specifications
| Model No. | PS55+ | Power | 75HP/56KW |
| Voltage | 380V | Pressure range | 0.7~0.8Mpa |
| Warranty | 1 year | Air Flow | 6.0-10.0m3/min |
| Weight | 930kg | Noised | 75dB |
| Dimension | 1840*1212*1780mm | Cooling Method | Oil-Cooled |
Product Features

Energy Efficiency
The variable frequency drive adjusts motor speed according to actual air demand, which helps avoid unnecessary energy consumption. As a result, power usage is greatly reduced during partial-load operation. Moreover, smooth starting improves motor protection and overall system stability.
Efficient Cooling
The oil-cooling system keeps internal temperatures under control, even during continuous operation. This reduces thermal stress on key components and ensures stable performance. Therefore, the compressor achieves a longer service life with lower maintenance requirements.


Stable Performance
This compressor delivers consistent airflow and pressure under changing load conditions. At the same time, the optimized screw design improves operating efficiency and reliability. It is well suited for demanding industrial environments.
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The 75HP oil-cooled variable frequency screw compressor is a best air compressor solution for users seeking efficiency, durability, and stable air supply. If you are interested in this air compressor or similar machines, please contact us. We will give you the most suitable quotation and the most attentive service.
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