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
Description
Complete Compressed Air System Ready to Operate
The STS-T & STS-TD Series by South-Tek Systems offers a compact and complete solution for compressed air generation in industrial applications. Being tank-mounted, these systems reduce installation time and optimize plant floor space.
Available in standard configuration (STS-T) or with integrated dryer and filters (STS-TD), they provide a ready-to-operate solution that improves air quality and simplifies system implementation. Their fixed-speed, belt-driven design ensures operational stability, low noise levels, and high reliability in continuous 24/7 operation.
Equipped with a high-efficiency IE3 motor and low-speed operation, these compressors maximize energy performance and extend equipment lifespan, even in environments with temperatures up to 45°C.
Applications
Industrial workshops.
Light and medium manufacturing.
Automotive service centers.
Assembly processes.
Decentralized pneumatic systems.
Space-constrained installations.
Applications with constant compressed air demand.
Advantages
Fast and simplified installation.
Reduced plant floor space requirements.
Integrated air treatment in STS-TD version.
Lower system configuration complexity.
High energy efficiency.
Quiet operation in working environments.
Accessible maintenance and controlled costs.
Complete solution from a single supplier.
Integrated Engineering for Maximum Reliability
The STS-T & STS-TD Series incorporates high-efficiency bar-and-plate coolers, up to 60% more compact than traditional tube-and-fin designs, improving heat dissipation and reducing contaminant buildup.
The non-proprietary motors supplied by WEG S.A. facilitate replacement and help reduce service costs. Models up to 40 HP operate in tri-voltage configuration, while higher capacities are configured for standard 460V operation. All units feature Class F insulation for enhanced thermal resistance.
The microprocessor-based control system includes:
- Optional touchscreen display
- Integrated phase protection
- Current protection for main motor and fan motor
- ABS enclosure with IP65 protection rating
- MODBUS communication
- IoT integration readiness
The system also incorporates an automatic drain with timer to optimize condensate management and maintain the tank’s operational efficiency.
Downloads
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 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
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
STSP-VSD
Variable Speed Rotary Screw Compressors | 15–600 HP | 100–218 PSI
- Power range: 15 to 600 HP
- Flow: 72–2423 CFM
- Operating pressure: 100–218 PSI
- VSD technology (Variable Frequency Drive)
- High-efficiency direct drive
- IE3 / IE4 motors (depending on model)
- Controller with intelligent monitoring
- Ultra-quiet operation
- Lifetime warranty on the airend
- Ready for Industry 4.0 integration
STSP-VSD
Variable Speed Rotary Screw Compressors | 15–600 HP | 100–218 PSI
- Power range: 15 to 600 HP
- Flow: 72–2423 CFM
- Operating pressure: 100–218 PSI
- VSD technology (Variable Frequency Drive)
- High-efficiency direct drive
- IE3 / IE4 motors (depending on model)
- Controller with intelligent monitoring
- Ultra-quiet operation
- Lifetime warranty on the airend
- Ready for Industry 4.0 integration
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.
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
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
