Powerex STS0756 Series 7.5 HP Oil-Less Scroll Air Compressor – 240 Gallon (Simplex)

For operations that require maximum air storage, higher airflow capacity, and uncompromising air purity, the Powerex STS0756 Series 7.5 HP Simplex Oil-Less Scroll Air Compressor with 240-Gallon Tank delivers quiet, dependable performance for demanding clean-air environments. Built around Powerex’s proven scroll compressor technology, this system is engineered for facilities where oil contamination, excessive noise, and frequent maintenance are unacceptable.

The STS Series uses 100% oil-less scroll pump technology, eliminating the risk of oil carryover while significantly reducing maintenance and total cost of ownership. With smooth operation, extremely low vibration, and a large tank-mounted footprint, this compressor is ideal for medical, laboratory, pharmaceutical, food processing, and precision manufacturing applications with higher air storage requirements.

Clean, Quiet, Oil-Free Performance

The 7.5 HP simplex scroll pump is mounted directly to a 240-gallon corrosion-resistant air receiver, providing substantial air storage to support multiple points of use or longer run times with reduced compressor cycling. The increased tank volume helps maintain stable system pressure during continuous or intermittent demand.

The system comes standard with an electronic condensate drain, automatically removing moisture from the air receiver to protect downstream equipment and maintain air quality without manual draining.

Because the compressor is completely oil-free, users benefit from:

• No oil changes

• No oil carryover

• No oil-water separators required

• Reduced downstream filtration requirements

Airflow Performance

The Powerex STS0756 oil-less scroll compressor delivers reliable airflow for clean-air applications:

• Approximately 23.1 SCFM at standard operating pressure

This airflow output makes the STS0756 well suited for facilities with higher simultaneous or continuous air demand while maintaining oil-free air quality.

Configurable Dryer Options

The STS0756 system can be configured to meet your specific air quality requirements:

• No Dryer – For facilities with existing air treatment

• Refrigerated Air Dryer – Removes moisture to protect piping, tools, and equipment

• Desiccant Air Dryer – Provides ultra-dry air for critical processes requiring very low dew points

Dryer options are factory-integrated for a clean, space-efficient installation.

Voltage & Electrical Options

The Powerex STS0756 is available in three-phase configurations only:

• 208V / Three Phase

• 230V / Three Phase

• 460V / Three Phase

Each unit includes a UL-listed magnetic starter and a UL508A-listed control panel for safe, code-compliant operation.

Pressure Configuration

• Standard pressure configuration only
  (The 7.5 HP STS Series is not offered in a 145 PSI high-pressure configuration.)

Standard Features & Benefits

• 7.5 HP simplex oil-less scroll pump

• 240-gallon corrosion-resistant air receiver

• Electronic condensate drain (standard)

• 100% oil-free compressed air

• Extremely low noise and vibration

• Maximum air storage for reduced cycling

• Lower maintenance costs compared to oil-flooded compressors

• Designed for continuous-duty operation

Typical Applications

• Medical and dental facilities

• Laboratories and research environments

• Pharmaceutical and food processing

• Instrumentation and controls

• Clean manufacturing operations

Why Buy from Compressed Air Advisors Online?

Compressed Air Advisors Online is America’s choice for compressed air solutions, providing nationwide expertise and premium clean-air systems from trusted manufacturers like Powerex. Our team ensures proper sizing, voltage selection, and air treatment so your system performs exactly as intended from day one.