Serie STS

STSD-VSD Series

Variable Speed Rotary Screw Compressors | 15–475 HP | 62–2159 CFM

Power range: 15 – 475 HP
Airflow: 62 – 2159 CFM
Operating pressure: 100 – 218 PSI
Variable Speed Drive (VSD) technology
High-efficiency direct drive
IE3 premium efficiency motor
Low-speed operation for extended durability
Remote monitoring and Industry 4.0 compatibility
Ultra-quiet operation
Designed for environments ≥45°C
10-year airend warranty

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Categories: Rotary Screw Compressors, High-Capacity Compressed Air, Industrial Fixed-Speed Compressors

Description

Description

Intelligent Control for Maximum Energy Optimization

The STSD-VSD series is designed to dynamically respond to real-time compressed air demand within variable industrial processes.

Thanks to its Variable Frequency Drive (VFD) system, the compressor automatically adjusts motor speed according to system consumption, reducing unnecessary load/unload cycles and minimizing energy usage.

The direct-drive configuration eliminates mechanical losses associated with traditional transmission systems, improving overall equipment efficiency and extending service life.

The system architecture enables 24/7 operation with thermal stability, even in high-temperature industrial environments, while maintaining low noise levels and high operational control.

Applications

Plants with variable air consumption.

Automated production lines.

Automotive industry.

Continuous manufacturing processes.

Centralized pneumatic systems.

Facilities focused on energy efficiency.

Advantages

Energy savings compared to fixed-speed compressors.

Stable pressure without fluctuations.

Reduced inrush current during start-up.

Lower mechanical wear.

Low noise level.

Integration with digital monitoring systems.

Optimization of total cost of ownership.

Precision Industrial Engineering

STSD-VSD compressors use high-efficiency IE3 motors with Class F insulation and tri-voltage configuration in models up to 40 HP. From 50 HP and above, systems operate at standard 460V to facilitate integration into industrial infrastructures.

The microprocessor-based control system includes an optional touchscreen display, integrated phase protection, current monitoring for both main and fan motors, and an enclosure with IP65 protection rating.

It features MODBUS communication and compatibility with IoT modules, both factory-installed and retrofit-ready, enabling remote supervision and predictive maintenance.

Cooling is optimized through high-resistance bar-and-plate heat exchangers, up to 60% more compact than conventional designs, reducing dirt accumulation and improving thermal transfer efficiency.