DUX Haulage Equipment
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DUX DT-20N Narrow Low Profi le End Dump Truck

FEATURES
• Field-proven, articulated DUX DT-20N underground 4-wheel
drive dump truck is well suited for hauling ore, waste and
backfill on level and steep grades
• Excellent load retention and fast tramming up steep ramps
guaranteed — highest power to weight ratio in its class
• Permits effi cient chute, side and end loading in narrow drifts
with low headings
• Clean and rapid discharge cycles guaranteed with 75° dump
angle and smooth flow, wear resistant alloy steel dump box
• Electronically controlled engine reduces fuel consumption
and ventilation requirement
• Equipped with 4-wheel POSI-STOP brake system for
maximum safety, reliability and low maintenance cost
• Centralized service points and modular design for easy
service access and fast component exchange
• Excellent service and parts back-up worldwide
Product Introduction
WEIGHTS
Payload ......................................... 20.0 tonne .............22.0 ton
Machine weight, approx.. ..............17.6 tonne .............19.4 ton
GVW ............................................. 37.6 tonne .............41.4 ton
SAE VOLUME
Struck ..................................................8.0 m3
.............10.4 yd3
Heaped ................................................9.2 m3
.............12.0 yd3
Loose ore density ..............................2.0 t/m3
...... 3,375 lb/yd3

Custom box size to suit different ore weight available.

OVERALL DIMENSIONS
Length. ..........................................8 230 mm ................27’ 0”
Width ............................................ 2 085 mm ................6’ 10”
Height over box sides ................... 2 285 mm ..................7’ 6”
Height over canopy ..................... . 2 415 mm ................ 7’ 11”
TURNING RADIUS
Inside. ............................................ 3 710 mm ................12’ 3”
Outside ......................................... 6 300 mm ................20’ 8”
Angle ........................................................45°
DISCHARGING
Height at maximum dump angle ...4 395 mm ................ 14’ 5”
Maximum dump angle .............................75°

TECHNICAL SPECIFICATIONS

Engine
Make and model ........... Cummins QSB 6.7 with Electronic
....................................... Management System
Derated power ............. 164 kW (220 HP) @ 2300 RPM
Cylinders ....................... 6
Aspiration ..................... Turbocharged, after-cooled
Displacement ................ 6.7 L ........................408 in3
Starter ........................... 24-volt
Air intake cleaner ......... Donaldson 2-stage dry type with service gauge
Exhaust system............. Catalytic purifi er with integrated silencer
Cooling .......................... Liquid
Emission standard ........ Meets EPA Tier 3, Euro Stage IIIA
Transmission with Integrated Torque Converter
Make and model ........... Dana SOH HR32000 series, single stage integrated
........................................torque converter with fl ex plate drive
Speeds ...........................4 in forward and in reverse
Axles
Make and model ........... Dana SOH 16D 2149 with high traction differential
....................................... and POSI STOP brakes on all 4 wheel ends
Tires
– Bridgestone 16.00R25, 2*, VRLS tubeless, radial
Brakes
Service and ................... 4-wheel POSI-STOP totally enclosed multi-disc,
emergency/parking ...... liquid cooled, Spring Applied Hydraulically
....................................... Released (SAHR) with its own independent
....................................... circulating system and accumulator back-up
Automatic Brake .......... Applies brake in case of engine failure or pressure
Applicator (ABA) ........... drop in torque converter
Steering
– Articulated frame hydraulic power steering with pilot monostick control
– Double acting steering cylinders (2)
– + 45o steering angle each way for a total of 90o
Oscillation
– +10o center of oscillation for a total of 20o
– Large sized, heavy-duty roller bearing for minimum maintenance and a
smooth ride, 4-wheel ground contact guaranteed
Frames and Pins
– Articulated heavy-duty frames made to withstand the high impact and
torsional stress associated with mining application
– Frames come with fi ve-year unlimited hour guarantee
– Large high tensile alloy steel pins in replaceable anchor bushings
Dump Body
– Made from reinforced impact, wear resistant alloy steel plates,
substantially prolongs service life
– 75° dumping angle for clean and rapid discharge cycles
Operator Compartment
– Side seated for maximum visibility and bidirectional operation
– Heavy-duty adjustable suspension seat with arm rests and retractable
seat belt
– Shock mounted compartment floor for maximum comfort
– All controls and gauges located within easy reach and view of operator
Hydraulic System
– Heavy-duty double acting protected steering cylinders (2) with hard
chrome plated stems
– Heavy-duty double acting two-stage fully protected telescopic dump
cylinders (2) with hard chrome plated stems
– Heavy-duty PTO driven gear-type pumps driven from torque converter
– Suction fi lter
– Inline high pressure fi lter with service gauge
– ¾” inside diameter and over hoses that are four-spiral wire braid and
have crimped hose end swivel fi ttings
– Hose bulk-head located mid-ship
Tank Capacities
Fuel ................................ 227 L ............60 US gallons
Hydraulic oil .................. 227 L .......... 60 US gallons
Brake cooling oil ........... 95 L ............25 US gallons
Electrical System
– 24-volt negative ground
– 75 amp alternator with integrated sealed voltage regulator
– Main electric cut-off switch
– Heat resistant, waterproof, sealed electric PMA wire harness
– Sealed junction box and stainless steel instrument panel box with
multi-stem connectors
– Semi-automatic circuit breakers
– Front (2), rear (2), and all-directional (1) LED high-intensity lights
– Heavy-duty batteries (2)
– Signal horn and audible, adjustable back-up alarm