Serie STSD
The STSD Series Fixed Speed Rotary Screw Compressors deliver reliable industrial compressed air from 30 to 600 HP with direct drive technology and Industry 4.0 compatibility for maximum performance and efficiency.
- ✓Power range 30–600 HP with airflow 134–2584 CFM and operating pressure 100–218 PSI.
- ✓Direct drive system with high-efficiency IE3 motor and low-speed operation for greater durability.
- ✓Microprocessor-controlled panel with remote monitoring compatible with Industry 4.0.
- ✓Quiet operation designed for environments ≥45°C — 10-year airend warranty.
- ✓Reliable STSD Series Fixed Speed Rotary Screw Compressors for continuous industrial operations.
Description
STSD Series Fixed Speed Rotary Screw Compressors – Premium Design for Reliable Industrial Operation
The STSD series combines robust engineering with advanced energy efficiency to deliver stable compressed air production for critical industrial processes.
Its direct-drive architecture eliminates mechanical losses associated with belt or gear transmission systems, improving overall system efficiency. The use of IE3 motors with Class F insulation enables reliable operation under demanding conditions.
Each unit is designed to simplify maintenance tasks, reducing service time and long-term operating costs. The digital control system allows monitoring of key parameters such as pressure, temperature, and service hours.
The series is certified under performance standards ISO 1217:2009 Annex C, ensuring airflow and power measurements comply with international testing protocols.
Applications
High-production manufacturing plants.
Central industrial pneumatic systems.
Automotive industry.
Food and beverage processing.
Metallurgy and metalworking.
24/7 compressed air operation systems.
Advantages
High mechanical and energy efficiency.
Long airend service life.
Low operational noise level.
Stable pressure under constant load.
Optimized design for preventive maintenance.
Integration with digital monitoring systems.
Long-term reduction of operating costs.
High-Performance Industrial Engineering
The STSD series uses heat exchangers from AKG – Thermal Systems with bar-and-plate design, up to 60% more compact than traditional fin-and-tube systems, improving thermal dissipation and reducing particle accumulation.
The motors supplied by WEG S.A. are non-proprietary, making replacement easier and reducing service costs. Models up to 40 HP use tri-voltage motors, while higher capacities operate in standard 460V configuration.
The microprocessor-based control system includes:
- Optional touchscreen display
- Integrated phase protection
- Current protection for main motor and fan motor
- ABS housing with IP65 protection
- MODBUS communication protocol
- IoT integration readiness
The intake system incorporates high-precision valves that optimize inlet airflow and contribute to stable compression performance.

Downloads
STSD Series Manual
STSD Series Catalog














