{"id":25569,"date":"2026-03-11T15:43:59","date_gmt":"2026-03-11T15:43:59","guid":{"rendered":"https:\/\/airtec.global\/?post_type=product&p=25569"},"modified":"2026-07-02T20:12:44","modified_gmt":"2026-07-02T20:12:44","slug":"stsh-vsd-290-psi-variable-speed-rotary-screw-compressors","status":"publish","type":"product","link":"https:\/\/airtec.global\/en\/product\/stsh-vsd-290-psi-variable-speed-rotary-screw-compressors\/","title":{"rendered":"STSH-VSD Series 290 PSI"},"content":{"rendered":"
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STSH VSD 290 PSI Variable Speed Rotary Screw Compressors \u2013 Precise Control and Maximum Efficiency<\/h3>\n

The STSH-VSD 290 PSI series is engineered for industrial processes that require consistently high pressure with maximum stability and energy efficiency.<\/p>\n

Thanks to its direct-drive system and frequency inverter control, the compressor automatically adjusts motor speed according to real-time air demand, eliminating unnecessary load\/unload cycles. This reduces energy consumption, improves pressure stability, and extends equipment service life.<\/p>\n

The high-efficiency IE4 motor, combined with a low-speed radial fan, optimizes both thermal and mechanical performance, enabling reliable operation even under demanding environmental conditions. Its design is focused on critical applications where 290 PSI pressure is essential to the process.<\/p>\n<\/div>\n

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The STSH VSD 290 PSI Variable Speed Rotary Screw Compressors are designed for critical applications where 290 PSI pressure stability and energy savings are essential to production performance.<\/p>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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Advanced VSD Technology for Industrial Compressed Air Systems<\/h4>\n

The STSH VSD 290 PSI Variable Speed Rotary Screw Compressors represent a significant advancement in high-pressure industrial air generation. By continuously adjusting motor speed to match real-time air demand, the system eliminates the energy waste associated with traditional fixed-speed compressors that cycle on and off at full load.<\/p>\n

The frequency inverter control system monitors pressure levels and airflow requirements in real time, automatically optimizing motor speed to maintain stable 290 PSI output while minimizing electrical consumption. This intelligent control capability is especially valuable in industrial facilities where air demand fluctuates throughout production shifts.<\/p>\n

The IE4 ultra-high efficiency motor used in the STSH VSD 290 PSI Variable Speed Rotary Screw Compressors exceeds standard efficiency requirements, delivering maximum performance while reducing heat generation and mechanical wear. Combined with the direct drive system and low-speed radial fan, the unit operates with significantly lower noise levels compared to conventional high-pressure compressors.<\/p>\n

Remote monitoring compatibility with Industry 4.0 platforms allows maintenance teams to track performance data, monitor pressure trends, and schedule preventive maintenance without interrupting production. The optional heat recovery system captures thermal energy generated during compression and redirects it for use in facility heating or process applications, further improving overall energy efficiency.<\/p>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div>

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Applications<\/h4>\n
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Industrial processes requiring 290 PSI.<\/p>\n<\/div>\n

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Automotive industry.<\/p>\n<\/div>\n

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PET blow molding.<\/p>\n<\/div>\n

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High-pressure instrumentation systems.<\/p>\n<\/div>\n

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Specialized manufacturing plants.<\/p>\n<\/div>\n

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Pneumatic processes with variable demand.<\/p>\n<\/div>\n

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24\/7 industrial operations.<\/p>\n<\/div>\n<\/div>\n

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Advantages<\/h4>\n
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Significant energy savings through VSD technology.<\/p>\n<\/div>\n

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Precise and stable control at 290 PSI.<\/p>\n<\/div>\n

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Reduction of electrical consumption peaks.<\/p>\n<\/div>\n

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Extended service life through variable speed operation.<\/p>\n<\/div>\n

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Lower operational noise level.<\/p>\n<\/div>\n

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Thermal energy recovery capability.<\/p>\n<\/div>\n

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Adaptability to demand fluctuations.<\/p>\n<\/div>\n

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Long-term reduction of operating costs.<\/p>\n<\/div>\n

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The STSH VSD 290 PSI Variable Speed Rotary Screw Compressors are the ideal solution for facilities requiring precise high-pressure air with maximum energy efficiency.<\/p>\n<\/div>\n<\/div>\n

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Precision Engineering for High-Pressure Applications<\/h3>\n
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The STSH-VSD series incorporates bar-and-plate heat exchangers from AKG – Thermal Systems, up to 60% more compact than traditional fin-and-tube designs, improving heat dissipation and maintaining consistent efficiency under high-load conditions.<\/p>\n

The non-proprietary motors supplied by WEG S.A. simplify replacement and reduce maintenance costs. Models up to 40 HP operate in tri-voltage configuration, while higher capacities run on standard 460V. All units feature Class F insulation for enhanced thermal resistance.<\/p>\n

The microprocessor-based control system includes:<\/p>\n