The fixed-speed screw air compressor is designed for industrial applications requiring stable airflow, reliable continuous operation and simple maintenance. With a proven direct-drive structure and high-efficiency screw airend, it provides a dependable compressed air supply for factories with relatively stable air demand.

Ruihong’s fixed-speed series uses an optimized screw rotor profile and low-speed motor design, offering high stability, low operating noise and long service life. According to Ruihong product specifications, the optimized design can provide approximately 3%–5% higher efficiency compared with similar products.

Key Features

• Stable Air Supply – Ideal for factories with continuous and relatively constant compressed air demand.
• High-Efficiency Screw Airend – Optimized rotor profile improves compression performance.
• Low-Speed Design – Helps reduce mechanical wear and supports longer service life.
• Direct Drive – Efficient power transmission with fewer transmission components.
• Low Noise – Designed for quieter industrial operation.
• Reliable & Durable – High stability for long-term continuous production.
• Easy Maintenance – Simple structure makes routine servicing convenient.
• Wide Model Range – Suitable for small workshops and large industrial compressed air stations.

Wide Power and Pressure Range

The Ruihong fixed-speed series covers motor powers from:

7.5 kW to 315 kW

with multiple pressure configurations available, including:

0.8 MPa / 1.0 MPa / 1.2 MPa

Standard electrical configuration is 380V / 50Hz / 3 Phase, with customized voltage options available according to customer requirements.

Typical Applications

Suitable for:

• Machinery Manufacturing
• Metal Processing
• Automotive Industry
• Textile Production
• Packaging
• Electronics
• Chemical Industry
• Building Materials
• Furniture Manufacturing
• General Industrial Production

For factories with relatively stable compressed air consumption, the fixed-speed screw air compressor provides a simple, reliable and cost-effective compressed air solution for continuous production.