{"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":"2026-03-11T16:10:18","modified_gmt":"2026-03-11T16:10:18","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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\nPrecise Control and Maximum Efficiency at 290 PSI\n<\/h3>\n
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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\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div>

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\nApplications\n<\/h3>\n
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\nIndustrial processes requiring 290 PSI.\n<\/p>\n<\/div>\n\n

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

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

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

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

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

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\n24\/7 industrial operations.\n<\/p>\n<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>

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\nAdvantages\n<\/h3>\n
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\nSignificant energy savings through VSD technology.\n<\/p>\n<\/div>\n\n

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

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

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

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

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

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

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

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\nPrecision Engineering for High-Pressure Applications\n<\/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