WJD-1 Electric Underground LHD Loader

Product Overview

The WJD-1 load haul dump machine is intended for mines that need more tonnes per cycle than a 0.6 m3 unit but still have restricted roadway width. It can load broken ore or waste at headings and transfer it to a small truck, ore pass or stockpile over a short underground route.

The page identifies electric motor drive but does not fully define the power connection or cable-handling system. These details, together with mine voltage and protection requirements, must be included in the project review. The model should not be marketed as battery electric without evidence.

Capacity Step-Up for Narrow Operations

Narrow-vein production and development loading
Small underground mines needing a 2-ton LHD class
Short transfer cycles between headings and ore passes
Restricted routes where 1.30 m width is a key selection limit
Sites with suitable electrical supply and a managed power-connection route

More Payload in a Compact Envelope

2-Ton Payload and 1 m3 Bucket

The WJD-1 carries a published 2,000 kg payload, 800 kg more than the WJD-0.6. The 1 m3 bucket should be checked against material density and fill factor to prevent volumetric loading from exceeding the rated mass.

1.30 m Width for Restricted Access

Published dimensions are 6,170 x 1,300 x 2,000 mm. The extra length and width compared with the smaller electric model buy more capacity, but corners, drawpoints and dumping areas must still be checked with the articulated envelope.

45 kW Electric Drive

The page lists a Y225M-4 motor rated at 45 kW and supply choices of 220, 380 or 440 V. Confirm frequency, voltage drop, cable/connection arrangement, mine plugs, earthing, switchgear and fault protection for the installation.

Hydrostatic Travel for Reversing Cycles

A PV22 pump, MV23 motor and DLW-1 transfer case are listed for hydrostatic forward/reverse travel. This layout supports the frequent directional changes typical of loading and dumping in confined headings.

Loading Force and Gradient

Published values include 45 kN breakout force, 50 kN traction, 20-degree laden gradeability and 8 km/h maximum speed. Sustainable performance depends on road surface, gradient length, payload and power availability.

Brakes, Axles and Operator Controls

The page lists four-wheel drive and braking, SAHR parking brakes, DALI PC-15-B planetary axles, front NO-SPIN, rear anti-slip, hydraulic joystick controls, alarms and front/rear lights. Confirm emergency stop, isolation and protective structure before order.

Compare WJD-1 With WJD-0.6

Selection Factor	WJD-1	WJD-0.6 Reference
Payload	2,000 kg	1,200 kg
Bucket	1 m3	0.6 m3
Width	1,300 mm	1,150 mm
Motor	45 kW	30 kW
Selection priority	More tonnes per cycle	Minimum access width

Choose WJD-1 when the route accepts the larger envelope and the production plan benefits from higher payload. Choose WJD-0.6 when the narrowest opening is the controlling constraint.

Mine and Electrical Compatibility Check

Measure route width, height, articulation sweep and dumping clearance.
Confirm supply voltage, frequency, available power and connection location.
Define cable routing/handling and separation from traffic and water.
Verify earthing, short-circuit, overload, leakage and isolation protection.
Match bucket load to density, fragmentation and fill factor.
Check gradient length, road condition, drainage and ground clearance.
Define emergency stop, brakes, fire protection and operator protection.

Technical Specifications

Dimensions and Capacity

Parameter	Published Value
Overall dimensions	6,170 x 1,300 x 2,000 mm
Ground clearance	220 mm
Maximum lift / unloading height	3,250 / 1,050 mm
Bucket capacity	1 m3
Rated payload	2,000 kg
Operating / laden weight	7,000 / 9,000 kg

Performance and Chassis

Parameter	Published Value
Breakout force	45 kN
Maximum traction	50 kN
Laden gradeability	20 degrees
Maximum speed	8 km/h
Steering articulation	38 degrees
Axle oscillation	+/-8 degrees
Axles	DALI PC-15-B rigid planetary

Electrical and Drive System

Parameter	Published Value
Motor	Y225M-4, IP44
Rated output / speed	45 kW / 1,480 rpm
Motor poles / efficiency	4 / 92.30%
Listed voltage	220 / 380 / 440 V
Transmission	Hydrostatic forward / reverse
Pump / motor / transfer	PV22 / MV23 / DLW-1

FAQ

How does WJD-1 differ from WJD-0.6?

WJD-1 increases payload from 1,200 to 2,000 kg and bucket volume from 0.6 to 1 m3, while width increases from 1,150 to 1,300 mm. Selection depends on access and required tonnes per cycle.

Is it a battery-electric loader?

The page specifies an electric motor but does not identify a battery system. Use electric LHD terminology and confirm the exact power and cable arrangement with DALI.

Can it work on a 20-degree ramp continuously?

Twenty degrees is the published laden gradeability. Engineering should confirm whether this is a maximum test value or continuous-duty limit for the route, payload and surface.

What project data is required?

Provide roadway drawings, gradient, haul distance, material data, target output, mine voltage/frequency, connection point, cable route, dumping interface and required safety provisions.

Underground Vehicle

Processing Plants

Auxiliary Equipment And Parts