The DALI WJ-3 is a 7-ton diesel underground LHD loader for loading and short-distance haulage in mine development, production and tunneling. It combines a 3.0 m³ bucket, 2.22 m machine width and 164 kW Cummins engine with articulated steering, wet brakes and a rear-mounted operator compartment for underground loading cycles.
|
Selection Item |
Specification |
|
Rated tramming capacity |
7,000 kg |
|
Standard bucket |
3.0 m³ (4 yd³) |
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Overall dimensions (L x W x H) |
8,850 x 2,220 x 2,270 mm |
|
Maximum breakout force |
131 kN |
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Maximum traction |
170 kN |
|
Engine |
Cummins QSB6.7, 164 kW at 2,200 rpm |
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The WJ-3 is a diesel load haul dump machine sized for medium-capacity underground mucking. Its 7,000 kg rated payload and 3.0 m³ standard bucket suit ore and waste handling between a production heading, drawpoint, ore pass, stockpile or underground truck.
The machine uses a center-articulated frame, DANA drivetrain components and four-wheel multidisc wet brakes. Published dimensions and turning radii give mine planners the basic data needed to check roadway access before requesting a final configuration.
The standard 3.0 m³ bucket is matched to a rated 7,000 kg tramming capacity. Final bucket volume should be selected against loose material density, fragmentation, bucket fill and the mine’s truck or dumping interface rather than volume alone.
The published overall dimensions are 8,850 x 2,220 x 2,270 mm. Inner and outer turning radii are 2,820 mm and 5,810 mm, helping engineers check access through ramps, intersections, loading bays and drawpoints.
Published breakout force of 131 kN supports bucket penetration in fragmented rock, while maximum traction is listed at 170 kN. Actual loading and ramp performance will depend on ground conditions, tire selection, gradient, payload and material characteristics.
The supplied specification lists a Cummins QSB6.7 six-cylinder engine rated at 164 kW at 2,200 rpm, paired with a DANA C273 torque converter, RT32360 transmission and 16D2149 axles. Alternative Deutz and Volvo engines are listed as options, subject to market availability and final configuration.
Center-point articulation uses two double-acting steering cylinders. Spring-applied, hydraulically operated multidisc wet brakes act on all wheels through separate front and rear circuits; the service brake is also described as the emergency and parking brake.
The specification lists a rear-mounted operator compartment, seat belt, door travel interlock, exhaust-pipe insulation, fire extinguisher, front and rear work lights, reverse alarm and horn. Confirm the final canopy or cab, protective-structure documentation and site-required safety options in the technical offer.
Listed options include remote control, automatic fire suppression, automatic lubrication, rear camera, emergency steering, air conditioning and heater. Standard-versus-optional status, compatibility and destination-market availability must be confirmed before ordering.
Check the complete loading and haulage route before selecting an underground LHD:
The brochure shows alternative heaped bucket volumes of 2.3, 2.8 and 3.5 m³ for reference material densities of 3.0, 2.5 and 2.0 t/m³ respectively. Engineering should confirm the appropriate bucket width, payload limit and stability for the actual material.
Before commissioning, confirm brake testing, steering and emergency-steering arrangements, articulation locking, raised-boom support, fire protection, towing and recovery, operator protection and remote-control procedures. Daily checks should cover fluids, brakes, tires, bucket and cutting-edge wear, articulation points, hoses, lights, alarms and safety interlocks.
Maintenance planning should also confirm filter access, approved lubricants, service intervals, recommended wear parts and the initial spare-parts package for the mine location.
|
Parameter |
Specification |
|
Rated tramming capacity |
7,000 kg |
|
Standard bucket |
3.0 m³ (4 yd³) |
|
Maximum breakout force |
131 kN |
|
Maximum traction |
170 kN |
|
Boom raising time |
≤6.5 s |
|
Dumping time |
≤3.7 s |
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Boom lowering time |
≤3.2 s |
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Travel speeds |
0-4.7 / 0-9.4 / 0-18.4 km/h |
|
Parameter |
Specification |
|
Overall dimensions (L x W x H) |
8,850 x 2,220 x 2,270 mm |
|
Wheelbase |
3,165 mm |
|
Maximum lifting height |
4,950 mm |
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Discharge height |
1,850 mm |
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Discharge distance |
1,630 mm |
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Minimum turning radius |
2,820 / 5,810 mm, inner / outer |
|
Rear axle oscillation |
±8° |
|
Parameter |
Specification |
|
Operating weight |
17,600 kg |
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Empty front axle load |
6,790 kg |
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Empty rear axle load |
10,810 kg |
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Loaded front axle load |
14,900 kg |
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Loaded rear axle load |
9,700 kg |
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Calculated loaded total |
24,600 kg |
|
Parameter |
Specification |
|
Standard engine in supplied specification |
Cummins QSB6.7 |
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Rated power |
164 kW at 2,200 rpm |
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Cylinders / displacement |
Inline 6 / 6.7 L |
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Combustion |
Direct injection, four stroke |
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Published emission level |
EU Stage III / US Tier 3; confirm destination suitability |
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Fuel tank |
200 L |
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Electrical system |
24 V |
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Torque converter |
DANA C273 |
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Transmission |
DANA RT32360 |
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Axles |
DANA 16D2149 |
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Tires |
17.5-25 PR20 L-5S TT |
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Parameter |
Specification |
|
Boom system |
Z-link |
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Lift cylinders |
2 x 140 mm diameter |
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Dump cylinder |
1 x 200 mm diameter |
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Steering cylinders |
2 x 100 mm diameter |
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Hydraulic oil tank |
230 L |
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Service brakes |
Spring-applied, hydraulically operated multidisc wet brakes on all wheels |
|
Brake circuits |
Independent front and rear circuits |
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Alternator |
Bosch 28 V, 100 A |
|
Starter |
Bosch 24 V |
|
Batteries |
2 x 12 V, 145 Ah |
Confirm the final bill of materials, included equipment and option compatibility in the quotation.
LHD means load haul dump. The machine loads broken ore or waste, hauls it over a short underground route and dumps it into a truck, ore pass, stockpile or other transfer point.
The supplied specification lists a 7,000 kg rated payload and a 3.0 m³ standard bucket. The correct bucket for a project depends on material density, fragmentation, fill factor and the rated payload limit.
The machine is 2,220 mm wide and 2,270 mm high, with published inner and outer turning radii of 2,820 mm and 5,810 mm. The required roadway must also include site-defined clearance, bucket width and corner geometry.
The supplied WJ-3 specification identifies a Cummins QSB6.7 rated at 164 kW as the standard engine. The current webpage publishes a different Deutz configuration, so the final engine, emission level and market availability must be confirmed in the signed offer.
Remote control is listed as an option. Confirm operating range, controlled functions, emergency stops, fail-safe behavior, communications and compliance with the mine’s remote-operation procedure.
Send the roadway profile, minimum clearances, gradient, haul distance, material density, fragmentation, target tonnes per shift, loading and dumping interfaces, ventilation constraints, destination country and required safety options.
