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MT4400D AC

Mining Trucks

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.

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Engine Model Cat® 3516C HD
Gross Power - SAE J1995 1864 kW
Bore 170 mm
Stroke 215 mm
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MT4400D AC
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FEATURES & BENEFITS

Power Train - Cat AC Electric Drive

100% CaterpillarDesigned and manufactured by Caterpillar, the MT4400D AC is a 221 tonne (244 ton) AC electric drive truck that is single sourced from Caterpillar and supp... Read more

Power Train - Engine

EngineThe Cat 3516C HD is a quad turbocharged diesel engine that provides maximum performance in the most demanding mining applications.DesignThe 3516C HD is a 16 cylinde... Read more

Engine/Power Train Integration

Control Software and IntegrationThe integrated controls of the MT4400D AC make the truck simple to operate. They provide: Excellent slow speed control for safety within... Read more

Cat Braking System

Industry Leading Dynamic RetardingThe radial grid is rated at 3.281 MW (4,400 hp) - allowing you excellent control of the truck speed in long retarding applications. The... Read more

Structures

Straight Rail FrameThe MT4400D AC utilizes a straight rail design. The straight rail design eliminates bends and breaks, which are sources of stress concentrations. Box... Read more

Truck Body Systems

Cat BodiesIntegral to the truck, the body is designed to fit with the chassis and work as part of the truck system. Each body is sized to meet the payload requirements wi... Read more

Monitoring System

VIMS™ 3G Monitoring SystemProvides operator critical health and payload information in real-time to keep the MT4400D AC performing at optimum levels. VIMS is able to moni... Read more

Operator's Station

Operator EnvironmentThe Cat MT family cab can accommodate two full size reclining seats, while providing ample storage space behind the seats.Ergonomic LayoutTo minimize... Read more

Customer Support

Commitment to Meet Your NeedsCat dealer 24/7 support offers solutions, services and products to help you lower costs, enhance productivity, and manage your fleet anywhere... Read more

SPECIFICATIONS FOR MT4400D AC

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Engine
Engine Model Cat® 3516C HD
Gross Power - SAE J1995 1864 kW
Bore 170 mm
Stroke 215 mm
Displacement 78.1 l
Weights - Approximate
Gross Machine Operating Weight (GMW) 392357 kg
Empty Vehicle Weight 171168 kg
Operating Specifications
Nominal Payload Capacity 221 ton (US)
Top Speed - Loaded 64 km/h
Steer Angle 30 °
Turning Circle - Diameter 30.4 m
Gross Machine Operating Weight (GMW) 392357 kg
Final Drives
Total Reduction Ratio 35:01:00
AC Drive System
Alternator Brushless, direct mounted, dual bearing
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration
Cooling System Variable speed hydraulic cooling system
Wheel Motor Rear axle mounted Cat AC induction
Suspension
Effective Cylinder Stroke - Front 304 mm
Effective Cylinder Stroke - Rear 184 mm
Rear axle - Oscillation ±5.7°
Body Hoists
Pump Flow - High Idle 900 l/min
Relief Valve Setting - Raise 17236 kPa
Body Raise Time - High Idle 22 s
Body Power Down - High Idle 16.5 s
Braking System
Front Brakes - Dry Disc - 4 Calipers/Wheel: Disc Diameter 1168 mm
Rear Oil Cooled Brakes - Outside Diameter 940 mm
Rear Oil Cooled Brakes - Standards J-ISO 3450 JAN88, ISO 3450:2011
Electric Retarding - Dynamic Retarding Power 3281 kW
Electric Retarding (2) Radial Grid Design
Electric Retarding (1) Brushless AC Motor
Rear Oil Cooled Brakes - Brake Surface - Rear 155383 cm²
Weight Distributions - Approximate
Front Axle - Loaded 33 %
Rear Axle - Loaded 67 %
Front Axle - Empty 50 %
Rear Axle - Empty 50 %
Service Refill Capacities
Fuel Tank - Optional 4922 l
Cooling System 686 l
Crankcase 288 l
Final Drive - Each 129 l
Hydraulic Tank 670 l
Fuel Tank 3028 l
Hydraulic System - Including Tank 1113 l
Dimensions
Ground Clearance - Front Axle 711 mm
Front Canopy Height 7341 mm
Overall Width 7950 mm
Overall Length 14783 mm
Wheel Base 6401 mm
Rear Axle - Tail 4318 mm
Dump Clearance 1524 mm
Loading Height - Empty 6223 mm
Overall Height - Body Raised 14326 mm
Centerline Front Tire Width 6274 mm
Inside Body Width 7163 mm
Rear Axle - Clearance 914 mm
Centerline of Rear Dual Tire Width 4963 mm
Overall Tire Width 7605 mm
Cab
ROPS Standards (1) FOPS (Falling Object Protective Structure) meets ISO 3449:1992.
ROPS Standards (2) ROPS (Rollover Protective Structure) meets ISO 3471:1994.
Sound
Sound Standards (1) Hearing protection may be needed when operating with open operator station & cab for extended periods or in a noisy environment.
Sound Standards (2) The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 79 dB(A).
Body Capacities - 100% Fill Factor
Struck - SAE 77-135 m3 (101-176 yd3)
Heaped (SAE 2:1) 125-170 m3 (163-222 yd3)

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Gross Power - SAE J1995 2983 kW
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