MT4400D AC

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Overview

The Cat MT4400D AC is designed to deliver reliability, serviceability and low owning and operating cost. It is a single sourced truck with a Cat 3516C HD engine and Cat AC Drive System.

Engine

Units:
Engine Model Cat® 3516C HD Cat® 3516C HD Less
Gross Power - SAE J1995 2500.0 hp 1864.0 kW Less
Bore 6.7 in 170.0 mm Less
Stroke 8.5 in 215.0 mm Less
Displacement 4766.0 in3 78.1 L Less

Weights - Approximate

Gross Machine Operating Weight (GMW) 865000.0 lb 392357.0 kg Less
Empty Vehicle Weight 378500.0 lb 171168.0 kg Less

Operating Specifications

Nominal Payload Capacity 244.0 tons 221.0 tonnes Less
Top Speed - Loaded 40.0 mph 64.0 km/h Less
Steer Angle 30.0 Degrees 30.0 Degrees Less
Gross Machine Operating Weight (GMW) 865000.0 lb 392357.0 kg Less
Turning Circle Diameter 99.74 ft 30.4 m Less

Final Drives

Total Reduction Ratio 35:1 35:1 Less

AC Drive System

Alternator Brushless, direct mounted, dual bearing Brushless, direct mounted, dual bearing Less
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration IGBT Inverter Technology, air cooled, pressurized cabinet with filtration Less
Cooling System Variable speed hydraulic cooling system Variable speed hydraulic cooling system Less
Wheel Motor Rear axle mounted Cat AC induction Rear axle mounted Cat AC induction Less

Suspension

Effective Cylinder Stroke - Front 12.0 in 304.0 mm Less
Effective Cylinder Stroke - Rear 7.85 in 184.0 mm Less
Rear Axle Oscillation ±5.7° ±5.7° Less

Body Hoists

Pump Flow - High Idle 238.0 gal/min 900.0 L/min Less
Relief Valve Setting - Raise 2500.0 psi 17236.0 kPa Less
Body Raise Time - High Idle 22.0 Seconds 22.0 Seconds Less
Body Power Down - High Idle 16.5 Seconds 16.5 Seconds Less

Braking System

Electric Retarding Brushless AC Motor Brushless AC Motor Less
Electric Retarding Radial Grid Design Radial Grid Design Less
Electric Retarding - Dynamic Retarding Power 4400.0 hp 3281.0 kW Less
Front Brakes - Dry Disc - 4 Calipers/Wheel: Disc Diameter 46.0 in 1168.0 mm Less
Rear Oil Cooled Brakes: Brake Surface - Rear 24084.0 in2 155383.0 cm2 Less
Rear Oil Cooled Brakes: Outside Diameter 37.0 in 940.0 mm Less
Rear Oil Cooled Brakes: Standards J-ISO 3450 JAN88, ISO 3450:2011 J-ISO 3450 JAN88, ISO 3450:2011 Less

Weight Distributions - Approximate

Front Axle - Loaded 33.0 % 33.0 % Less
Rear Axle - Loaded 67.0 % 67.0 % Less
Front Axle - Empty 50.0 % 50.0 % Less
Rear Axle - Empty 50.0 % 50.0 % Less

Service Refill Capacities

Fuel Tank (optional) 1300.0 gal 4922.0 L Less
Cooling System 181.0 gal 686.0 L Less
Crankcase 76.0 gal 288.0 L Less
Final Drives, Each 34.0 gal 129.0 L Less
Fuel Tank 800.0 gal 3028.0 L Less
Hydraulic System (includes tank) 294.0 gal 1113.0 L Less
Hydraulic Tank 177.0 gal 670.0 L Less

Dimensions

Front Canopy Height 24.08 ft 7341.0 mm Less
Ground Clearance - Front Axle 2.33 ft 711.0 mm Less
Overall Width 26.08 ft 7950.0 mm Less
Overall Length 48.5 ft 14783.0 mm Less
Wheelbase 21.0 ft 6401.0 mm Less
Rear Axle to Tail 14.17 ft 4318.0 mm Less
Dump Clearance 5.0 ft 1524.0 mm Less
Loading Height - Empty 20.42 ft 6223.0 mm Less
Overall Height - Body Raised 47.0 ft 14326.0 mm Less
Centerline Front Tire Width 20.58 ft 6274.0 mm Less
Inside Body Width 23.5 ft 7163.0 mm Less
Rear Axle Clearance 3.0 ft 914.0 mm Less
Centerline Rear Dual Tire Width 16.28 ft 4963.0 mm Less
Overall Tire Width 24.95 ft 7605.0 mm Less

ROPS

ROPS Standards FOPS (Falling Object Protective Structure) meets ISO 3449:1992. FOPS (Falling Object Protective Structure) meets ISO 3449:1992. Less
ROPS Standards ROPS (Rollover Protective Structure) meets ISO 3471:1994. ROPS (Rollover Protective Structure) meets ISO 3471:1994. Less

Sound

Sound Standards Hearing protection may be needed when operating with open operator station & cab for extended periods or in a noisy environment. Hearing protection may be needed when operating with open operator station & cab for extended periods or in a noisy environment. Less
Sound Standards The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 79 dB(A). The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 79 dB(A). Less

Body Capacity - 100% Fill Factor

Heaped (SAE 2:1) 125-170 m3 (163-222 yd3) 125-170 m3 (163-222 yd3) Less
Struck (SAE) 77-135 m3 (101-176 yd3) 77-135 m3 (101-176 yd3) Less

Power Train - Cat AC Electric Drive

Gives you more power to the ground for greater productivity.


Power Train - Engine

Power, reliability and efficiency for your most demanding mining applications.


Engine/Power Train Integration

Reduced operating costs through electronically coordinated power train components.


Cat Braking System

Excellent braking control gives operator’s confidence.


Structures

Cat structures are known for being the best in the industry for durability and long life.


Truck Body Systems

Caterpillar designed and built for rugged performance and reliability.


Monitoring System

Keeping your production at peak levels.


Operator’s Station

Ergonomically designed for all-day comfort, control and productivity.


Customer Support

The most experienced dealer network in the world.


Serviceability

Reduced maintenance time results in more productivity.


Safety

Designed with safety as the first priority.


Sustainability

Reduced maintenance time results in more productivity.


MT4400D AC Standard Equipment

ELECTRICAL
  • Brushless Alternator, 150 ampere
  • Ground Level Electrical Isolator
  • Ground Level Engine Shutdown Switch
  • Batteries, Size 31 AGM, Quantity 6
  • Lighting, Signals/Service: - Lights 4 Halogen Headlights (high/low beam) - Lights Rear Dynamic Braking, Service Brakes, Back-up - Lights Service Group - Lights Access Steps

OPERATOR ENVIRONMENT
  • Air Conditioner with Climate Control
  • 12 volt DC Power Supply (2)
  • Cup Holder (2)
  • Document Holder Compartment
  • Entertainment Radio Ready: - 20 amp switched/10 amp Memory Converter, Speakers and Wiring Harness
  • Gauges/Indicators: - Air Cleaner Service Indicator - Brake Drag Warning - Coolant Temperature Gauge - Volt Meter - Fuel Level - Speedometer/Odometer/Hourmeter - Tachometer - Engine Oil Pressure Gauge - Check Engine Indicator - Electric System Fault Indicator - High Hydraulic Temperature - Low Brake Pressure - Low Hydraulic Oil Level - Low Steering Pressure - Stop Engine
  • Heater/Defroster
  • Electric Hoist Lever
  • Horn
  • Light Dome/Courtesy
  • Access Light Switch
  • Engine Start/Stop Switch
  • Headlight/Tailight Switch
  • High Low Beam Indicator and Switch
  • Load Brake Switch
  • Park Brake Switch
  • Turn Indicator Lights and Lever
  • Hand Brake Control
  • Four Post ROPS Cab, Insulated/Sound Suppressed
  • Seat, Operator, Air Suspension
  • Seatbelt, Operator, Three Points, Retractable
  • Steering Wheel, Tilt, Padded
  • Sun Visor/Tinted Glass
  • Windshield Wiper (intermittent) and Washer
  • Power Windows
  • Rearview Mirrors (left and right)
  • Stairway Light Switch

POWER TRAIN
  • Cat 3516C HD Engine: - Diesel Engine/Turbocharged/Aftercooled - Ground Level Engine Shutdown - Either Starting Aid (automatic) - Elevated Low Idle Control - Automatic Starter Protection - Multi-point Oil Pressure Sensing
  • Braking System: - Brake Release System for Towing - Oil-cooled, Multi-disc (rear) (service, retarding, parking, secondary) - Front Service/Secondary Caliper Brake - Rear Caliper Disc Park Brake - Automatic Retarding Control - Electric Dynamic Retarding with Blended Low Speed - Engine Overspeed Protection - Extended Life Brake Disc Material
  • Cat AC Drivetrain: - IGBT Controlled AC Induction Motors - Brushless Traction Generator - Radial Retard Grid with AC Blower Motor
  • Body-up Reverse Neutralizer
  • Programmable Top Speed
  • Rear Axle Continuous Lube/Filtration
  • Reverse Shift Inhibitor
  • Directional Shift Management
  • Neutral Coast Inhibitor
  • Body-up Shift Inhibitor
  • Neutral Start Inhibitor

OTHER STANDARD EQUIPMENT
  • Radiator Fan Guard
  • Alternator (24 volt) Belt Guard
  • Air Conditioner Compressor Belt Guard
  • Pump Drive Guard
  • Hydraulic Lubrication Automatic: - 62 L (16.4 gal) Tank - 54.4 kg (120 lb)
  • Fuel Fast Fill - Quick Charge
  • Fuel Water Separator
  • Deck Hand Rails
  • Reverse Hoist Interlock
  • Dump Body Lock-up Cable
  • Muffler (without body heating)
  • Access Ladder
  • Automatic Auxiliary Steering (accumulators)
  • Auxiliary Dumping Connections
  • Engine Service Ladder (left and right side)
  • Skid Resistant Deck Top
  • Air Cleaner Rock Shields
  • Centralized Terminal Board Locations
  • Converter 24 volt to 12 volt, 25 amp Capacity
  • Dry Air Cleaners
  • Front Wheel Fenders and Mud Guards
  • Fuel Tank Sight Gauge
  • Hydraulic Component Box Gauges
  • Hydraulic Test Ports
  • Rock Ejectors
  • Super Large Bore Tire Inflation Values
  • Clearance Light and Turn Signals
  • Hinged Dash Panels
  • Traction Control System

MT4400D AC Optional Equipment

Wheel Station and Rims in 32" or 29"

Body Heat Exhaust

Conventional Body

High Efficiency Body

Optima Batteries (6)

High Intensity Discharge (HID) Lighting

English or Metric Gauges

English or Metric Hub Odometer

Payload, Digital Display

4920 L (1,300 gal) Fuel Tank

Diagonal Fixed Ladder (ground level access on driver’s side)

Diagonal Powered Ladder (ground level access on driver’s side)

Inverter Walkway

Heated Mirrors (LH and RH)

Final Drive Oil Cooler Filtration

Standard Accumulators and Australia Certified Accumulators

Side Profile Lighting

Active Retarding Light Indicator

Battery Jump Start Connection

Battery Charge Receptacle

Fog Lights

Camera Safety System (1 Camera)

Camera Safety System (3 Camera)

Hot Start, for Cold Weather

Oil Pan Guard

Rear Light Guards

Wheel Chocks

Portable Fire Extinguisher

Power Supply Vacuum

Radio/CD Player

Murphy Gauge

Body
  • Conventional Body, 127 m3 (166 yd3)
  • Conventional Body, 143 m3 (187 yd3)
  • Conventional Body, 119 m3 (156 yd3)
  • Conventional Body, 110 m3 (144 yd3)
  • Conventional Body, Canopy Extension to the End of Platform
  • HE Body with Canopy, 143 m3 (187 yd3)

Halogen High Mount Headlights

HID High Mount Headlights

Halogen (LH and RH) Windrow/Work Lighting

HID (LH and RH) Windrow/Work Lighting

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