40 KW 20 CFM Combo Unit – DU4020RS

*Units are built to order

  • Duetz 2.9L Diesel, EPA Tier 4
  • 208-240V/460V Single or 3-Phase
  • 40KW Power Output
  • Up to 170 PSI
  • 20CFM Air Output
  • 2,000 hour / 2 year compressor service interval
  • Powder Coated Frame
  • Electronic Control Panel

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The GenAer DU4020RS offers a comprehensive solution, integrating a powerful 40KW generator, high-performance air compressor, and user-friendly maintenance features into a single, space-saving unit. Constructed with premium components for extended service life, this combination unit delivers consistent power generation, exceptional air pressure (up to 170 PSI and 20 CFM), and simplified upkeep. A generous 40-gallon fuel tank and 14-gallon air tank ensure long-lasting performance with minimal downtime, making this generator air compressor combo unit a perfect choice for spray foam professionals.

Power

  • Duetz 2.9L Diesel Engine
  • 4 cylinders
  • 1800 RPM
  • US EPA Tier 4

Electric Output

  • Weg Extra Heavy Duty 12 Lead Generator
  • 208-240V/460V Single or 3-Phase
  • 40KW

Air Output

  • Low Speed, Engine Driven Rotary Screw Compressor
  • 20 Cubic Feet per Minute Flow Rate
  • Up to 170 PSI
  • Modulating intake valve (automatically adjusts to match air demand)

Features

  • Electronic Control Panel
  • Powder Coated Steel Frame
  • 4-Way Forklift Pockets
  • 40 Gal Poly Fuel Tank w/ Remote Fuel Fill Connection
  • 14 Gal Integrated Air Tank
  • Spin on Filters
  • 12V Starter Battery Included
  • 2,000hr / 2yr Air Compressor Service Interval
  • Low Engine Oil Pressure Shutdown
  • High Engine Temp & Compressor Temp Shutdown

Add On Options

  • Tsunami Regenerative Air-Drying System

Unit Weight Less Fuel: 1950 lbs
DU Combo Series Spec Sheet

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Displays generator voltage, output amps, and frequency.
Generator box mounted main circuit breaker.
Weight 1950 lbs
Dimensions 68.3 × 40.46 × 60.76 in
Air Dryer

Air Dryer, No Air Dryer

Generator Monitoring

Generator Monitoring, No Generator Monitoring

Main Breaker

Main Breaker, No Main Breaker

PSI

Up to 170

Cubic Ft/Min

20

Intake

Modulating

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