Serie STSD
Fixed Speed Rotary Screw Compressors | 30–600 HP | 100–218 PSI
- Power range: 30 – 600 HP
- Airflow: 134 – 2584 CFM
- Operating pressure: 100 – 218 PSI
- Direct drive system
- High-efficiency IE3 motor
- Low-speed operation for greater durability
- Microprocessor-controlled panel
- Remote monitoring compatible with Industry 4.0
- Quiet operation
- Designed for environments ≥45°C
- 10-year airend warranty
Description
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.
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Related Products
Serie STSP
Premium Fixed-Speed Rotary Screw Compressors | 30–425 HP | 100–218 PSI
- Power range: 30 to 425 HP
- Operating pressure: 100, 125, and 218 PSI
- Flow up to 2151 CFM
- Direct drive
- High-efficiency IE3 / IE4 motors
- Microprocessor control panel with LCD display
- Standard proportional control valve
- Optimized cooling with radial fan (≥75 kW)
- Two-stage air/oil separator (2–3 PPM)
- Lifetime warranty on the airend
- ISO 1217:2009 Annex C & E compliant
- Noise level measured under ISO 2151
Serie STSP
Premium Fixed-Speed Rotary Screw Compressors | 30–425 HP | 100–218 PSI
- Power range: 30 to 425 HP
- Operating pressure: 100, 125, and 218 PSI
- Flow up to 2151 CFM
- Direct drive
- High-efficiency IE3 / IE4 motors
- Microprocessor control panel with LCD display
- Standard proportional control valve
- Optimized cooling with radial fan (≥75 kW)
- Two-stage air/oil separator (2–3 PPM)
- Lifetime warranty on the airend
- ISO 1217:2009 Annex C & E compliant
- Noise level measured under ISO 2151
Serie STSH-VSD 290 PSI
Variable-Speed, Direct-Drive Rotary Screw Compressor
- Variable Speed Drive (VSD) technology for automatic demand adjustment.
- Working pressure up to 290 PSI.
- High-efficiency IE4 motor.
- Direct-drive configuration with no transmission losses.
- Low-speed radial fan with integrated inverter.
- Ultra-quiet operation.
- Remote monitoring and Industry 4.0 / IoT compatibility.
- Optional heat recovery.
- Reliable operation in ambient temperatures of 45°C or higher.
- Service program and 3-year warranty on the airend.
Serie STSH-VSD 290 PSI
Variable-Speed, Direct-Drive Rotary Screw Compressor
- Variable Speed Drive (VSD) technology for automatic demand adjustment.
- Working pressure up to 290 PSI.
- High-efficiency IE4 motor.
- Direct-drive configuration with no transmission losses.
- Low-speed radial fan with integrated inverter.
- Ultra-quiet operation.
- Remote monitoring and Industry 4.0 / IoT compatibility.
- Optional heat recovery.
- Reliable operation in ambient temperatures of 45°C or higher.
- Service program and 3-year warranty on the airend.
STSH-VSD Series 290 PSI
Variable-Speed Rotary Screw Compressors | 25–100 HP | 290 PSI
- Power range: 25 – 100 HP
- Airflow: 35 – 190 CFM
- Operating pressure: 290 PSI
- Direct drive system
- Variable Speed Drive (VSD) technology
- IE4 ultra-high efficiency motor
- Frequency inverter control
- Low-speed radial fan
- Microprocessor-based control panel
- Remote monitoring compatible with Industry 4.0
- Ultra-quiet operation
- Heat recovery option available
- Designed for environments ≥45°C
- 5-year airend warranty
STSH-VSD Series 290 PSI
Variable-Speed Rotary Screw Compressors | 25–100 HP | 290 PSI
- Power range: 25 – 100 HP
- Airflow: 35 – 190 CFM
- Operating pressure: 290 PSI
- Direct drive system
- Variable Speed Drive (VSD) technology
- IE4 ultra-high efficiency motor
- Frequency inverter control
- Low-speed radial fan
- Microprocessor-based control panel
- Remote monitoring compatible with Industry 4.0
- Ultra-quiet operation
- Heat recovery option available
- Designed for environments ≥45°C
- 5-year airend warranty
Serie STSP-2
Two-Stage, Fixed-Speed, Direct-Drive Rotary Screw Air Compressors
- Two-stage compression technology for greater volumetric efficiency.
- Direct-drive design that reduces mechanical losses.
- High-efficiency IE4 motor for maximum energy savings.
- Low-speed operation that extends service life.
- Lifetime warranty on the airend.
- Remote monitoring and Industry 4.0 / IoT compatibility.
- Integrated RFID protection for enhanced security.
- Ultra-quiet operation.
- Capable of operating in ambient temperatures of 45°C or higher.
- Heat recovery and water-cooling options available.
- Premium components: AKG, WEG, Hoerbiger, and CMC.
- Optimized design for easy service and maintenance.
Serie STSP-2
Two-Stage, Fixed-Speed, Direct-Drive Rotary Screw Air Compressors
- Two-stage compression technology for greater volumetric efficiency.
- Direct-drive design that reduces mechanical losses.
- High-efficiency IE4 motor for maximum energy savings.
- Low-speed operation that extends service life.
- Lifetime warranty on the airend.
- Remote monitoring and Industry 4.0 / IoT compatibility.
- Integrated RFID protection for enhanced security.
- Ultra-quiet operation.
- Capable of operating in ambient temperatures of 45°C or higher.
- Heat recovery and water-cooling options available.
- Premium components: AKG, WEG, Hoerbiger, and CMC.
- Optimized design for easy service and maintenance.
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
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
Serie STS 40
High-Pressure Piston Booster 580 PSI | 15 – 25 HP | 110 – 273 CFM
- ower range: 15 – 25 HP
- Airflow: 110 – 273 CFM
- Discharge pressure: 580 PSI
- Fixed-speed piston booster
- High-efficiency IE3 electric motor
- Low-speed operation for greater durability
- Cabinet or open-frame version (cabinet / cabinless)
- Microprocessor control panel in cabinet models
- Optional sequential operation
- Long-life concentric intake and discharge valves
- 2-year booster warranty
Serie STS 40
High-Pressure Piston Booster 580 PSI | 15 – 25 HP | 110 – 273 CFM
- ower range: 15 – 25 HP
- Airflow: 110 – 273 CFM
- Discharge pressure: 580 PSI
- Fixed-speed piston booster
- High-efficiency IE3 electric motor
- Low-speed operation for greater durability
- Cabinet or open-frame version (cabinet / cabinless)
- Microprocessor control panel in cabinet models
- Optional sequential operation
- Long-life concentric intake and discharge valves
- 2-year booster warranty
Series STS-T y STS-TD
Belt-Driven Rotary Screw Compressor Mounted on Tank
- Tank-mounted design for simplified installation
- Available with integrated dryer and filters (STS-TD version)
- High-efficiency IE3 motor
- Low-speed operation for extended durability
- Ultra-quiet performance
- Automatic drain with built-in timer
- Ready for remote monitoring and digital integration
- 6-year airend warranty
- Service program available
Series STS-T y STS-TD
Belt-Driven Rotary Screw Compressor Mounted on Tank
- Tank-mounted design for simplified installation
- Available with integrated dryer and filters (STS-TD version)
- High-efficiency IE3 motor
- Low-speed operation for extended durability
- Ultra-quiet performance
- Automatic drain with built-in timer
- Ready for remote monitoring and digital integration
- 6-year airend warranty
- Service program available
Serie STS
Fixed-Speed Rotary Screw Compressor with Belt Drive
- High-efficiency IE3 motor to optimize energy consumption
- Belt drive transmission for easy maintenance and adjustment
- Quiet operation to reduce industrial noise
- Compact design with a small installation footprint
- Low-speed system that extends service life
- Easy access for service and maintenance
- Capable of operating in environments up to 45°C
- 6-year airend warranty
Serie STS
Fixed-Speed Rotary Screw Compressor with Belt Drive
- High-efficiency IE3 motor to optimize energy consumption
- Belt drive transmission for easy maintenance and adjustment
- Quiet operation to reduce industrial noise
- Compact design with a small installation footprint
- Low-speed system that extends service life
- Easy access for service and maintenance
- Capable of operating in environments up to 45°C
- 6-year airend warranty
