AD45 Underground Articulated Truck

The Cat® AD45 Underground Truck delivers all the power, performance and reliability you expect from the AD45 — but the latest model also offers an an advanced EU Stage V compliant engine and aftertreatment solution that meets the strictest emissions standards, lowers your carbon footprint and improves air quality in your mine. In addition, a retrofit solution is available that allows you to retrofit the previous model, the AD45B, to meet the same strict standards. This ultra-clean diesel machine delivers superior productivity thanks to its ideal match with the next generation Cat R1700 underground loader and is technology-enhanced with features that improve productivity, boost uptime and keep operators and personnel safer on the job.


  • Standard Operator Present System, which protects the machine and operator from uncontrolled machine movements, with hydraulic system neutralization and door sensor.
  • Optional reverse and cab loading cameras, plus additional camera mounted on the right-hand side to enhance visibility for the EU Stage V model.
  • Safer access and egress with anti-skid upper deck surfaces, upper deck handrails and 3-point cabin and machine access.
  • Four corner oil-cooled braking system that provides excellent control, with service brake system actuated by hydraulic pressure and parking brake function that is spring applied and hydraulic released to ensure braking in the event of loss of hydraulic failure.
  • Safer service with service with steering frame lock, body retaining pins, exhaust heat shielding and firewall fitted, hitch hydraulic hoses fitted with burst protection sleeves, tailgate retaining pins (ejector body), and hot and cold side of engine.


  • Controls, levers, switches and gauges positioned to maximize productivity and minimize fatigue.
  • Optional sound-suppressed ROPS cab for a quiet, secure and comfortable air-conditioned working environment with fresh, pressurized, temperature-controlled air circulation.
  • Ergonomic, fully adjustable suspension seat with thick cushions that reduce pressure on lower back and thighs and wide, retractable seat belts that provide a secure, comfortable restraint.
  • Comfort wheel with tilt steering that provides a comfortable driving position, secure grip and greater control.
  • Rollover Protective Structure (ROPS) and Falling Objects Protective Structure (FOPS) resiliently mounted to the mainframe to isolate the operator from vibration for a more comfortable ride.


  • Truck Payload Measurement System, which automatically records load cycle information when the load is dumped, giving operators real-time loading data and sorting it for download.
  • Automatic Retarder Control (ARC) electronically controls retarding on grade, allowing the operator to maintain optimum engine speeds for faster downhill hauls and greater productivity.
  • Single-stage hoist cylinders that provide fast dump cycle times of 16 seconds for raise and 21 seconds for lower.


  • Cat C18 engine, which provides efficient fuel management for quick response, high productivity and exceptional service life.
  • Torque rise that effectively matches transmission shift points for maximum efficiency and fast cycle times.
  • Lockup Torque Converter combines maximum rimpull while in torque converter drive with the efficiency and performance of direct drive when the lockup clutch is engaged.
  • Mechanically Actuated, Electronic Unit Injection (MEUI™) high-pressure, direct injection fuel system, which electronically monitors operator demands and sensor inputs to optimize engine performance and fuel combustion.
  • Cat seven-speed planetary power shift transmission matched with the direct-injection Cat C18 engine to deliver constant power over a wide range of operating speeds.


  • Cat truck bodies designed for optimal strength, capacity and durability.
  • Designed and matched with the integrated chassis system for optimum structural reliability, durability and long life.
  • Two Cat body styles, dump body and ejector body, for the most efficient hauling solution at the lowest cost per ton.
  • Greater versatility with ejector body that can be easily removed and a dump body fitted.


  • Box-section frame design with stiff frame beams to resist twisting forces; weld joint and materials matched to optimize structural life.
  • Full floating axles that relieve internal stresses and increase durability, plus rolled splines that provide increased service life.
  • Two independent variable rebound suspension cylinders that dissipate haul road forces for longer frame life and a comfortable ride.
  • Proven planetary power shift transmission built for long life between overhauls.
  • Frame, powertrain, engine and components that are built to be rebuilt, delivering second and third lives.


  • Ground-level access to all tanks, filters, lubrication points and compartment drains; remote mounted fuel filters for easier serviceability; and fluid-level sight gauges.
  • Radial seal air filters that are easy to change, reducing time required for air filter maintenance.
  • Electrical connectors that are sealed to lock out dust and moisture, harnesses that are covered for protection, and wires that are color- and number-coded for easy diagnosis and repair.
  • Cat Electronic Technician (ET), which enables quick electronic diagnosis of machine performance and key diagnostic data for effective maintenance and repairs.
  • Cat Electronic Monitoring System (EMS), which provides continuous access to critical machine data to keep the machine performing at a high level.


  • Smoother shifts and longer component life with Controlled Throttle Shifting, which regulates engine RPM, torque converter lock-up and transmission clutch engagement.
  • Reduced fuel consumption, decreased noise levels and potential for longer engine life with Economy Shift Mode.
  • Machine damage prevented by directional shift management, which regulates engine speed to avoid high-speed directional changes; and body-up shift inhibitor, which prevents the transmission from shifting above a pre-programmed gear without the body fully lowered.
  • Overspeed protection provided by Automatic Retarder Control, which engages the brakes if an unsafe engine speed is reached when the throttle is being depressed by the operator.


  • Engine with EU Stage V emissions package for mines that require compliance with highest emission standards to drive down diesel particulate matter and NOx emission to near-zero while improving overall air quality and maintaining a high machine performance; also available with EU Stage IIIA /U.S. EPA Tier 3 engine.
  • Optional Ventilation Reduction (VR) Package, which incorporates selective engine hardware and software to reduce diesel particulate matter in the engine exhaust and deliver a significant ventilation rate reduction, a decrease in fuel consumption, and maintained or improved product performance.
  • Cat Diesel Particulate Filter, which complements the VR engine by further reducing particulate matter in the exhaust.
  • Ongoing research and development into engine compatibility with diesel fuel blended with lower-carbon intensity fuels such as biofuels and renewable fuels, plus power options like electrification.
  • Cat Rebuild and Cat Reman programs, which preserve raw materials, conserve energy and reduce emissions, plus retrofits and upgrades for older machines to incorporate efficiency improvements and emission reductions.

Standard Equipment

  • 12V power supply in cab
  • Alternator, 95-amp
  • Auxiliary start receptacle
  • Battery disconnect switch, ground level
  • Circuit breaker, 80-amp
  • Corrosive protection spray
  • Diagnostic connector
  • Electric starting, 24V
  • Engine shutdown switch, ground level
    – Front left hand side
  • Lighting
    – Headlights with dimmer switch, LED
    – Brake and tail lights
    – Rear work light (cab mounted), LED
    – Reversing lights, LED
  • Low maintenance batteries
  • Reversing alarm
  • Starting and charging system
  • Cat Electronic Monitoring System (Cat EMS)
  • Electric horns
  • Gauges
    – Engine coolant temperature
    – Transmission coolant temperature
    – Hydraulic oil temperature
    – Fuel level
    – Speedometer
    – Tachometer
  • Indicator lights
    – Alert warning light
    – Body up position warning
    – High beam
    – Residual brake pressure warning
    – Retarder application
    – Turn signal
  • Low hydraulic level warning
  • Open operator station ROPS/FOPS structure
  • Operator presence system (auto park brake)
  • Rearview mirrors
  • Suspension seat Cat Comfort TLV2 with retractable seat belt
  • Trainer/passenger seat and seat belt
  • Tilt/telescopic steering wheel
  • Turn signal indicators
  • Cat C18 ATAAC diesel engine, 6-cylinder
  • Automatic brake retarder control
  • Auto shift transmission 7 speed forward/2 speed reverse
  • Control throttle shifting
  • Engine air intake precleaner
  • Electric fuel priming pump
  • Exhaust, turbo compartment shielding
  • Four wheel drive
  • Long life coolant
  • Programmable ground speed limiting
  • Programmable gear block out with tray up
  • Radiator cap manual release
  • Radiator, cross flow
  • SAFR™ full hydraulic enclosed wet, multiple-disc brakes, oil cooled
  • Torque converter, standard with automatic lockup
  • Body, dump, (21.3 m³, 27.9 yd³)
  • Catalytic exhaust purifier/muffler group
  • Centralized lubrication points
  • Decals, international picto graphics
  • Dual fuel tanks
  • Engine and transmission belly guards
  • Fenders, front, rear flaps
  • Fire wall
  • Fuel system manual shut off tap
  • Front axle suspension
  • Frame lifting lugs
  • Front and rear tow pin
  • Front rubber bumpers
  • Gauges, brake pressure
  • Hand hold (access on/off top deck)
  • Hitch, articulated and oscillated
  • Operation and Maintenance Manual – English and other applicable local languages to select
  • S·O·S port
    – Coolant
    – Engine oil
    – Hydraulic oil
    – Transmission oil
  • Swing out radiator grill
  • Tires and rims: A tire must be selected from the mandatory attachments section of the machine price list. Base machine price includes a standard tubeless rim allowance only.

Additional information

Offering Type

Engine Model

Cat® C18

Engine Power - EU Stage V Engine - ISO 14396:2002

446 kW ( 598 HP )

Engine Power - Tier 3 Engine - ISO 14396:2002

433 kW ( 581 HP )

Engine Power - VR Engine - ISO 14396:2002

433 kW ( 581 HP )

Engine - Bore

145 mm ( 5.7 in )

Engine - Stroke

183 mm ( 7.2 in )

Engine - Displacement

18.1 l ( 1104.53 in³ )

Engine - Note (2)
Engine - Note (3)
Operating Specifications - Nominal Payload Capacity

45000 kg ( 99208 lb )

Operating Specifications - Gross Machine Mass

89250 kg ( 196765 lb )

Operating Specifications - Body Capacities

18.0-25.1 m³ (23.5-32.8 yd³)

Transmission - Forward - 1

7 km/h ( 4.4 mile/h )

Transmission - Forward - 2

9.5 km/h ( 5.9 mile/h )

Transmission - Forward - 3

12.9 km/h ( 8 mile/h )

Transmission - Forward - 4

17.3 km/h ( 10.8 mile/h )

Transmission - Forward - 5

23.5 km/h ( 14.6 mile/h )

Transmission - Forward - 6

31.7 km/h ( 19.7 mile/h )

Transmission - Forward - 7

42.4 km/h ( 26.4 mile/h )

Transmission - Reverse - 1

6.8 km/h ( 4.2 mile/h )

Transmission - Reverse - 2

9 km/h ( 5.6 mile/h )

Final Drives - Differential Ratio


Final Drives - Final Drive Ratio


Final Drives - Total Reduction Ratio


Body Capacities - Dump Body - 3

25.1 m³ ( 32.8 yd³ )

Turning Dimensions - Outside Clearance Radius*

9420 mm ( 371 in )

Turning Dimensions - Frame Oscillation


Turning Dimensions - Articulation Angle


Service Refill Capacities - Engine Crankcase - With Filter

64 l ( 16.9 gal (US) )

Service Refill Capacities - Transmission

60 l ( 15.9 gal (US) )

Service Refill Capacities - Hydraulic Tank

266 l ( 70.3 gal (US) )

Service Refill Capacities - Cooling System

85 l ( 22.5 gal (US) )

Service Refill Capacities - Front Differential and Final Drives

77 l ( 20.3 gal (US) )

Service Refill Capacities - Rear Differential and Final Drives

83 l ( 21.9 gal (US) )

Service Refill Capacities - Fuel Tank

764 l ( 201.8 gal (US) )

Tires - Tire Size

29.5 × R29


ROPS/FOPS Certified Cab

Engine - Note (6)

Optional engine available that meets U.S. EPA Tier 4 Final and EU Stage V emission standards.

Operating Specifications - Shipping Mass (Stage V Engine Model)

43645 kg ( 96225 lb )

Operating Specifications - Shipping Mass (Other Engine Models)

42825 kg ( 94415 lb )

Weights (Stage V Engine Model) - Operating Mass

41405 kg ( 91285 lb )

Weights (Stage V Engine Model) - Operating Mass - Front Axle

29285 kg ( 64565 lb )

Weights (Stage V Engine Model) - Operating Mass - Rear Axle

12120 kg ( 26720 lb )

Weights (Stage V Engine Model) - Operating Mass + Rated Payload

86405 kg ( 190495 lb )

Weights (Stage V Engine Model) - Operating Mass + Rated Payload - Front Axle

40475 kg ( 89235 lb )

Weights (Stage V Engine Model) - Operating Mass + Rated Payload - Rear Axle

45930 kg ( 101260 lb )

Weights (Other Engine Models) - Operating Mass

40060 kg ( 88320 lb )

Engine - Note (1)

Power ratings apply at a rated speed of 2,000 rpm when tested under the reference conditions for the specified standard.

Engine - Note (4)

Optional Ventilation Reduction Package available.

Engine - Note (5)

Optional engine with emissions equivalent to Tier 3 and Stage IIIA is also available.

Transmission - Note

Maximum travel speeds with standard 29.5 × R29 tires.

Body Capacities - Note

Heaped SAE 2:1.

Turning Dimensions - Note

*Clearance dimensions are for reference only.

Weights (Other Engine Models) - Operating Mass - Front Axle

27770 kg ( 61225 lb )

Weights (Other Engine Models) - Operating Mass - Rear Axle

12290 kg ( 27095 lb )

Weights (Other Engine Models) - Operating Mass + Rated Payload

85060 kg ( 187530 lb )

Weights (Other Engine Models) - Operating Mass + Rated Payload - Front Axle

38715 kg ( 85355 lb )

Weights (Other Engine Models) - Operating Mass + Rated Payload - Rear Axle

46345 kg ( 102175 lb )

Weight Distribution (Stage V Engine Model) - Empty - Front Axle


Weight Distribution (Stage V Engine Model) - Empty - Rear Axle


Weight Distribution (Stage V Engine Model) - Loaded - Front Axle


Weight Distribution (Stage V Engine Model) - Loaded - Rear Axle


Weight Distribution (Other Engine Models) - Empty - Front Axle


Weight Distribution (Other Engine Models) - Empty - Rear Axle


Weight Distribution (Other Engine Models) - Loaded - Front Axle


Weight Distribution (Other Engine Models) - Loaded - Rear Axle


Body Hoist (Stage V Engine Model) - Raise

15 Seconds

Body Hoist (Stage V Engine Model) - Lower

21 Seconds

Body Hoist (Stage V Engine Model) - Total Cycle Time

36 Seconds

Body Hoist (Other Engine Models) - Raise

14 Seconds

Body Hoist (Other Engine Models) - Lower

21 Seconds

Body Hoist (Other Engine Models) - Total Cycle Time

35 Seconds

Body Capacities - Dump Body - 1

18 m³ ( 23.6 yd³ )

Body Capacities - Dump Body - 2 - Standard

21.3 m³ ( 27.9 yd³ )

Body Capacities - Ejector Body

22.9 m³ ( 29.9 yd³ )

Turning Dimensions - Inside Clearance Radius*

5310 mm ( 209 in )

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