Rotary screw compressor range
Explore Okair’s oil-lubricated rotary screw air compressors, including standalone single-stage units, integrated systems and two-stage models. Compare the series below or speak with us about your air requirements.
Compare configurations and operating ranges below. For airflow at a specific pressure, see the individual model specifications on each series page.
Explore Two-Stage Screw Air Compressors →
Choose from three F Series models with a refrigerated dryer, precision filters and air receiver in one package. Rated flow ranges from 0.6 to 2.0 m³/min at 16 bar, with 230 to 400 L air receivers.
Six single-stage PM VSD screw air compressor models from 10 to 50 HP, with 8, 10 and 13 bar pressure options and rated flow from 0.7 to 6.1 m³/min.
Five single-stage PM VSD screw air compressor models from 10 to 75 HP, rated for 8 bar and 1.1 to 9.4 m³/min. Motor protection is IP55 on 10 to 50 HP models and IP65 on the 75 HP model. Models from 10 to 50 HP pair an oil separation vessel with an external separator element.
Three horizontal two-stage PM VSD screw air compressor models from 20 to 50 HP, rated for 8 bar and 2.9 to 7.4 m³/min. Compare capacity, installation size, outlet connection, noise, and motor protection before requesting a quote.
Shared technology
All four series use oil-lubricated screw compression, permanent magnet motors and variable speed drives (VSD). The main differences are the compression stages, system configuration and rated pressure and airflow.
Configuration comparison
Compare the equipment included in each configuration, then check the model specifications for your required pressure and airflow.
| Configuration | Series | Equipment included | Air treatment and storage |
|---|---|---|---|
| Single-stage standalone | S Series and OKF-HPTSW | Single-stage compressor unit | Review the dryer, filters and air receiver separately. |
| Four-in-one integrated | F Series | Compressor, refrigerated dryer, precision filters and air receiver | Included in the integrated unit. |
| Two-stage standalone | OKF-HPII | Two-stage compressor unit | Review the dryer, filters and air receiver separately. |
Selection guidance
Start with the pressure your equipment needs, then check each model’s airflow at that pressure. Motor power alone does not tell you how much air a compressor can deliver. S Series, for example, has separate airflow ratings at 8, 10 and 13 bar.
Consider the air quality your process needs and the equipment already installed. F Series includes a refrigerated dryer, precision filters and an air receiver. If you choose a standalone compressor, we can review how it fits with your existing air treatment setup.
The standard supply for these series is three-phase 380 V / 50 Hz. Share your site’s voltage, phase and frequency, along with the available installation space and operating conditions. Contact us to discuss voltage and frequency customization for your project.
In-house capabilities
We manufacture rotary screw air compressors in Guangzhou, China. Our in-house operations cover sheet metal processing, painting, mechanical and electrical assembly, performance testing and pre-shipment inspection.
OEM / ODM
For distributors, OEM/ODM customers and project buyers, we offer customization of logos, colors, voltage, frequency, pressure, configuration and packaging. Orders start at one unit, with specifications confirmed for each order.
Logo and exterior color.
Voltage, frequency, pressure and configuration.
Packaging requirements for your order.
Share your requirements so we can confirm the available options.
Talk to Okair
Tell us what equipment you need to supply and share your required pressure and airflow, power supply, quantity and destination. Include any air treatment or installation requirements so we can recommend a suitable configuration and prepare a quote.
You can contact us before choosing a model. If you are unsure about airflow or other specifications, send the details you have and we will help review your requirements.
Include your project details in the message field.