OFS Series Oil Free Rotary Screw Air Compressors

OFS Series Oil Free Rotary Screw Air Compressors

When air purity is critical – oil free air is essential. Oil particulates in compressed air can contaminate downstream processes and production. Oil Free compressors eliminate potential contamination, as no oil or lubricant is introduced into the air compression process.

Sullair OFS Series compressors are independently certified for Class 0 Oil Free performance in accordance with ISO 8573-1. The reduced risk of contamination helps improve your business operations and profitability.

Sullair OFS Series compressors are the perfect choice for applications requiring completely oil free air, including:

  • Pharmaceuticals
  • Food and beverage manufacturing
  • Electronics
  • High-technology manufacturing
  • Textile manufacturing

Models vary by region. Please contact your Sullair sales representative for more details.

Category :
  • 60 Hz, 230/460V, 3-phase
  • 100 to 350 hp (75 to 261 kW)
  • 100 to 150 psi (7 to 10 bar)
  • 446 to 1654 cfm (12.6 to 46.8 m³/min)


  • Controller with backlit digital screen and built-in sequencing capability
  • Legendary Sullair rotary screw technology
    • Proven two-stage efficiency
    • Ultra-long bearing life
  • NEMA premium efficient TEFC motor
  • Wye-delta starter (standard)
  • ASME coded air/water coolers with integrated moisture separators
  • Automated condensate drains—highest efficiency solution


Variable speed drive (VSD) provides stable system pressure, improved energy efficiency and potential savings