Serie STSH-VSD 290 PSI
The STSH VSD 290 PSI Variable Speed Rotary Screw Compressor delivers high-pressure industrial compressed air with Variable Speed Drive technology for automatic demand adjustment and maximum energy efficiency.
- ✓Variable Speed Drive (VSD) technology with working pressure up to 290 PSI and 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.
Description
STSH VSD 290 PSI Variable Speed Rotary Screw Compressor – Intelligent Control and True Efficiency
The STSH-VSD 290 PSI Series is designed for industrial processes that require consistent medium pressure with maximum energy efficiency. Thanks to its Variable Speed Drive (inverter) technology, the compressor automatically adjusts motor speed according to air demand — eliminating unnecessary load/unload cycles and significantly reducing power consumption.
Its Direct Drive design minimizes mechanical losses, while the premium-efficiency IE4 motor optimizes overall energy performance. The system is engineered for continuous 24/7 operation, even in ambient conditions of up to 45°C, ensuring thermal stability and operational reliability.
The integration of a microprocessor-based controller with MODBUS communication and IoT compatibility enables remote supervision, advanced electrical protection, and real-time monitoring — facilitating seamless integration into smart manufacturing environments.
Available from 25 HP to 100 HP, this series delivers best-in-class performance for applications requiring elevated pressure with precise control.
Applications
Industrial processes requiring constant 290 PSI pressure.
PET blowing and molding systems.
Metalworking industry.
Automotive manufacturing.
Cutting processes or medium-pressure pneumatic tools.
Integration with on-site gas generation systems.
Advantages
Automatic adjustment to actual air demand.
Reduced energy consumption compared to fixed-speed systems.
Stable pressure without critical fluctuations.
Reduced mechanical wear by avoiding frequent starts.
Low noise level compared to traditional compressors.
Greater operational control and data traceability.
Technical Information and General Specifications
The STSH-VSD 290 PSI Series is available in configurations ranging from 25 HP to 100 HP, with capacities reaching up to 190.35 CFM at 290 PSI, depending on the model. All variable-speed units operate standard at 460V and integrate WEG motors with Class F insulation, ensuring thermal stability and long service life.
The system incorporates AKG coolers with bar-and-plate technology, up to 60% more compact than traditional designs, improving heat dissipation and reducing contaminant buildup. The microprocessor-based controller features integrated phase protection, current monitoring for the main motor and fan, a high-resistance enclosure with IP65 protection, and compatibility with factory-installed or retrofit IoT modules.
The low-speed radial fan with integrated inverter optimizes cooling airflow, contributing to both energy efficiency and reduced operating noise.
Downloads
STSH-VSD 290 PSI Manual
Download the complete manual with technical specifications, performance data, and installation information for the STSH VSD 290 PSI Variable Speed Rotary Screw Compressor.
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- ✓Variable Speed Drive (VSD) technology with IE4 ultra-high efficiency motor and frequency inverter control.
- ✓Direct drive system with low-speed radial fan and microprocessor-based control panel.
- ✓Remote monitoring compatible with Industry 4.0 — ultra-quiet operation with heat recovery option.
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- ✓Variable Speed Drive (VSD) technology with IE4 ultra-high efficiency motor and frequency inverter control.
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- ✓Low-speed operation that extends service life — lifetime warranty on the airend.
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Serie STSP-2
The STSP-2 Two Stage Rotary Screw Air Compressors deliver maximum industrial compressed air efficiency with two-stage compression technology, direct drive, IE4 motor, and a lifetime airend warranty.
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STSD-VSD Series
The STSD VSD Variable Speed Rotary Screw Compressors deliver high-efficiency industrial compressed air from 15 to 475 HP with Variable Speed Drive technology for maximum energy savings and reliable continuous operation.
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- ✓Variable Speed Drive (VSD) technology with high-efficiency direct drive and IE3 premium efficiency motor.
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Series STS-T y STS-TD
The STS-T TD Belt Driven Rotary Screw Compressor Tank Mounted delivers reliable industrial compressed air with a simplified tank-mounted design and optional integrated dryer and filters for complete air treatment.
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- ✓High-efficiency IE3 motor with low-speed operation for extended durability and ultra-quiet performance.
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- ✓6-year airend warranty with service program available.
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Series STS-T y STS-TD
The STS-T TD Belt Driven Rotary Screw Compressor Tank Mounted delivers reliable industrial compressed air with a simplified tank-mounted design and optional integrated dryer and filters for complete air treatment.
- ✓Tank-mounted design for simplified installation — available with integrated dryer and filters (STS-TD version).
- ✓High-efficiency IE3 motor with low-speed operation for extended durability and ultra-quiet performance.
- ✓Automatic drain with built-in timer — ready for remote monitoring and digital integration.
- ✓6-year airend warranty with service program available.
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Serie STS 40
The STS 40 High Pressure Piston Booster delivers reliable high-pressure compressed air up to 580 PSI with power ranges from 15 to 25 HP and airflow from 110 to 273 CFM for demanding industrial applications.
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- ✓2-year booster warranty — reliable performance for harsh industrial environments.
Serie STS 40
The STS 40 High Pressure Piston Booster delivers reliable high-pressure compressed air up to 580 PSI with power ranges from 15 to 25 HP and airflow from 110 to 273 CFM for demanding industrial applications.
- ✓Power range 15–25 HP with airflow 110–273 CFM and discharge pressure up to 580 PSI.
- ✓Fixed-speed piston booster with high-efficiency IE3 electric motor and low-speed operation for greater durability.
- ✓Cabinet or open-frame version with microprocessor control panel in cabinet models.
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- ✓2-year booster warranty — reliable performance for harsh industrial environments.
Serie STS
The STS Series Belt Drive Rotary Screw Compressor delivers reliable industrial compressed air with a fixed-speed belt drive design optimized for energy efficiency, quiet operation, and extended service life.
- ✓High-efficiency IE3 motor with belt drive transmission for easy maintenance and adjustment.
- ✓Quiet operation with compact design and small installation footprint.
- ✓Low-speed system that extends service life — capable of operating in environments up to 45°C.
- ✓Easy access for service and maintenance — 6-year airend warranty.
- ✓Reliable STS Series Belt Drive Rotary Screw Compressor for continuous industrial operations.
Serie STS
The STS Series Belt Drive Rotary Screw Compressor delivers reliable industrial compressed air with a fixed-speed belt drive design optimized for energy efficiency, quiet operation, and extended service life.
- ✓High-efficiency IE3 motor with belt drive transmission for easy maintenance and adjustment.
- ✓Quiet operation with compact design and small installation footprint.
- ✓Low-speed system that extends service life — capable of operating in environments up to 45°C.
- ✓Easy access for service and maintenance — 6-year airend warranty.
- ✓Reliable STS Series Belt Drive Rotary Screw Compressor for continuous industrial operations.
Serie STSP
The STSP Series Fixed Speed Rotary Screw Compressors deliver premium industrial compressed air from 30 to 425 HP with direct drive technology, lifetime airend warranty, and ISO 1217:2009 compliance for maximum reliability.
- ✓Power range 30–425 HP with flow up to 2151 CFM and operating pressure 100, 125, and 218 PSI.
- ✓Direct drive with high-efficiency IE3/IE4 motors and microprocessor control panel with LCD display.
- ✓Two-stage air/oil separator (2–3 PPM) with optimized cooling radial fan and proportional control valve.
- ✓ISO 1217:2009 Annex C & E compliant — noise level measured under ISO 2151.
- ✓Lifetime warranty on the airend — reliable STSP Series Fixed Speed Rotary Screw Compressors for continuous industrial use.
Serie STSP
The STSP Series Fixed Speed Rotary Screw Compressors deliver premium industrial compressed air from 30 to 425 HP with direct drive technology, lifetime airend warranty, and ISO 1217:2009 compliance for maximum reliability.
- ✓Power range 30–425 HP with flow up to 2151 CFM and operating pressure 100, 125, and 218 PSI.
- ✓Direct drive with high-efficiency IE3/IE4 motors and microprocessor control panel with LCD display.
- ✓Two-stage air/oil separator (2–3 PPM) with optimized cooling radial fan and proportional control valve.
- ✓ISO 1217:2009 Annex C & E compliant — noise level measured under ISO 2151.
- ✓Lifetime warranty on the airend — reliable STSP Series Fixed Speed Rotary Screw Compressors for continuous industrial use.
