AmpJet 28d - 28v DC Ground Power Unit

 AMPJET combines cutting-edge innovation with proven design. The result? A GPU that’s tough, intuitive, and always ready to deliver. Designed for easy service and long-term reliability, AMPJET ensures you spend less time maintaining and more time powering what matters. 

  AMPJET® units use a proven Genset Controller trusted across industries for years. Operating the GPU is as easy as "PUSH-A-BUTTON", making every start-up smooth and efficient — even for first-time users. 

The AMPJET® series of diesel-powered 28V DC Ground Power Units (GPUs) offers a cost-effective alternative to running the aircraft APU.

Designed for versatility and efficiency, AMPJET DC GPUs deliver steady, clean power for a wide range of aircraft and ground operations.

World-Ready Performance — engineered with multiple engine options to meet diverse global emission standards.

Built for extreme environments, AMPJET GPUs are proven performers in:

• Scorching Desert Heat
• Freezing Arctic Conditions
• Heavy Tropical Rains

Wherever Your Operations Go, AMPJET Performs. 

   Highlighted Features & Specifications -  28V DC Diesel GPU 

• Simple “PUSH-A-BUTTON” Start / Stop
• Output Power:  28V DC, 850A
• Alternator (Brushless, Single Bearing): Marathon
• Engine Speed RPM: 1800
• Engine Options: Perkins (Tier 3), Perkins, Deutz & JCB (Tier 4F)
• Protection: Over/Under Voltage & Over/Under Frequency, Overload
• Line Drop Compensation: Automatic
• Cooling: Liquid
• Fuel Capacity: 124 L (32.75 Gal)
• Operating Time Per Tank:  12 hours 
• Fuel Type Tier 3: Diesel / Jet A 
• Fuel Type Tier 4F / Stage 5: Low Sulfur Diesel
• Dimensions L x W x H: 2.55 x 1.7 x 1.68 M (102 x 68 x 67 in.)
• Weight: 1400 KG (3080 lb.) 
• Noise Level: 85 dB(A)
• Warranty: 2 Years / 2000 Hours
• Temperature: -40°F to 125°F (-40°C to +52°C) W/ Extreme Cold Weather Kit Option
• High Altitude Performance

Features - Standard    

• Simple “PUSH-A-BUTTON” Start / Stop
• Smart Digital Genset Controller with 5″ Color Display
• Real-time monitoring of 7 critical parameters
• Electrical control panel access
• Main Control Panel with Weather Cover
• Auto Warm-up, Cool-down & Auto-Sleep
• Battery Shut-off Switch
• Low Fuel Alarm
• Fuel & Visibility Beacons (Amber / Red)
• Heavy-duty 14  gauge Sheet Metal Enclosure - Easy Access
• Primer-Powder Coated Zinc Primer - All Exterior Sheet Metal
• Standard Colors
• Top Coating - Powder Coated
• Rugged 5/16″ Steel Chassis
• Steering - Easy Maneuver 5th Wheel 
• Solid Axle & Pneumatic Tires
• 4x Extreme-Duty Rubber Engine & Generator Mount Isolators
• Hitch - Heavy Duty Lunette Eye 
• Tie Down Rings - 2 Front / 2 Rear
• Rugged 13” deep main frame rails
• Wheels - Easy Pull 12" (305mm)

Engine (Select) 

Choose GPU Engine Emission Requirement and Output Power 

• Tier 3: Perkins 
• Tier 4F / Stage 5: Perkins, Deutz & JCB

Cable (Select) 

• 30′ (10 m) 2 X 4/0 MIL-STD-5356-C with Connector 
• Quick Breakaway Power Cable with Swivel Base (Option)
• Custom Cable Lengths Available (Option)

Engine Protection

• Delayed Stop Turbo Protection
• Full Application Approval
• Over Speed Protection
• Full Flow Fuel Filter
• Full Flow Lubricating Oil Filter
• Muffler
• Engine Diagnostics
• Engine Preheater
• Low Oil Pressure Shut Down Switch (SDS)
• High Temp. Water (SDS)
• Low Fuel Warning

Safety 

• Emergency Stop (E-Stop)
• Fire Extinguisher (Option)
• Visibility Beacon
• Corner Reflectors: High-intensity visibility at Night (10X)
• 4 Corner Marker Lights
• Noise Reduction/Sound-suppression foam installed throughout engine compartment 
• Parking Brake: Tow-bar-activated -Adjustable

Control System

• Controller Type: Intuitive digital controller with integrated monitoring and diagnostics
• User Interface: 5-inch color display providing seven (7) key operating metrics at a glance
• Operation Controls:
  • Simple “PUSH-A-BUTTON” Start and Stop functions
  • Main System Power Switch
  • Warning Beacon and Marker Lights Switch
  • DC Output Controls 
  • Current Limiting Switch 

Monitoring & Display

• Engine Monitoring:
  • Battery Voltage
  • Water Temperature
  • Oil Pressure
  • Fuel Level
  • Tachometer (RPM)
  • Hour Meter
• Power Output Monitoring:
  • Output Voltage
  • Frequency
  • Power (kW/kVA)

Diagnostics & Data

• Troubleshooting Display: Active warnings and system fault messages displayed in real time
• Wiring Identification: Fully numbered wiring harness with corresponding wiring diagrams for easy service
• Operational History: Internal log of operating hours, start cycles, and fault events
• Battery System: 12V, 1000 Amp CCA battery for engine starting and control power

Options - Available

• Digital Gateway / Telematics (GPS/GSM) (Cell/Network link) (Monitor GPU Track on GPS, Receive Messages / Notifications on Mobile or Email)
• Premium Engine Warning Kit 
• Auxiliary 115 VAC, 60 Hz Output 
• Stainless Steel Enclosure
• Stainless Steel Fuel Tank 
• Corner Bumpers 
• Cable Tray Rollers 
• Foam-Filled Tires
• Low Coolant Shutdown SDS
• Cable-Connected Warning System (Strobe)
• Battery Switch (Required with Cable Connected Warning System)
• Fire Extinguisher
• Quick Break Away Output Cable
• Towbar Warning System
• Towbar Lock System
• Torsion (Flexible) Rear Axle
• Aux. Battery with Battery Separator
• Sling Hook(s)
• Manual floodlight for night operation
• DC Power Socket

Cold Weather Kit (CWK)

Includes: Glow Plugs, Battery Warmer, Block Heater (various part, numbers, inquire)

• Cold Weather Kit: Tier 3, Tier 4F / Stage 5
• Extreme CWK: Tier 3, Tier 4F / Stage 5
• Custom Engine Kits Available (on request)

Feature - Warranty & Support

Every AMPJET® GPU is designed and assembled in Canada, built for long service life and dependable operation.

Warranty: 2 Years / 2000 Hours (whichever comes first)

Service & Support:  24/7 global support, worldwide parts availability, and optional telematics monitoring for real-time performance tracking.