4LD loader 30


Joy 4LD

  • Rated load capacity of 4,000 kg (8,800 lbs.)
  • Largest operator compartment in its class
  • Ideal for narrow vein applications
  • Mechanical drive
  • Designed for ground-level maintenance with no climbing
  • Collet-style pins for lower wear and reduced maintenance

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The 4LD hard rock loader is a diesel-powered heavy-duty machine intended for the most demanding mine environments. The 4LD is designed for small narrow-vein applications where maneuvering space is limited. The 4LD, like all Joy loaders, is designed specifically for ease of use and maintenance, with simple operation gauges and a rugged long-life structure, providing the lowest possible total costs of operation including low capital costs.

Designed for safe operation and maintenance

The 4LD includes multiple features that are designed to maximize safety for both the operator and the maintenance staff:

  • ROPS/FOPS canopies and cabins provide protection from falling rock or rollovers
  • Fail-safe braking system features a spring-applied braking system that activates when low hydraulic oil pressure or electrical failures are detected
  • Operation interlocks prevent accidental machine activation
  • Three-point mounting and anti-slip steps minimize slips and falls
  • Hot component isolation to prevent burns or risk of fires

Designed for reliability

The 4LD has been designed for reliability and long component life, including the following features:

  • Rugged steel frame designed to withstand rigors and punishment typical of the hard rock mining environment
  • MIL (military specification) components that meet international standards
  • Heavy-duty all-mechanical powertrain featuring Dana components for a rugged platform and long service life
  • Hydraulic systems with piston pumps
  • Severe-duty electrical system
  • Collet-style pins for lower wear and reduced maintenance

Designed for ease of maintenance

The 4LD includes several key features that reduce maintenance times and costs, including:

  • Ground-level maintenance design to eliminate climbing
  • Sight glasses remove need to open hoods or covers
  • Centralized lubrication system
  • Simple mechanical design

Designed for productivity

The 4LD has been designed to provide the highest possible productivity in its class:

  • First LHD of this class to feature a Z-bar linkage bucket
    • Reduces bucket dump time from 5s to 2.1 s
    • Improves breakout forces by 15% (over previous model)
    • Improves bucket cycle times by 75%
  • Combines power and efficiency to provide fast tramming speeds and cycle times, with impressive breakout power
  • Easy-to-use controls are simple to train and simple to operate
  • Rugged structures and heavy-duty components increase equipment uptime

Designed for customization

The 4LD has many options available, including:

  • 2.4 m3 (3.0 cu yd) bucket
  • Ejector bucket - 1.7 m3 (2.2 cu yd)
  • Enclosed cabin with air conditioning
  • Fire suppression system (manual, automatic)
  • Quick attach system (bucket, forcks)
  • Radio remote control
  • Spare rim/wheel


Tramming capacity 4,000 kg 8,800 lbs.
Hydraulic breakout force lift 7,305 kg 16,105 lbs.
Hydraulic breakout force tilt 10,261 kg 22,622 lbs.
SAE breakout force 8,114 kg 17,887 lbs.
SAE static tipping load 14,667kg 32,334 lbs.
Bucket 1.9 m3 2.5 yd3

Overall dimensions

Height to top of canopy 2,023 mm 6 ft. 7.75 in.
Tramming length 7,519 mm 24 ft. 8 in.
Length: rear axle to bumper 2,439 mm 8 ft.
Center hinge to rear axle 1,270 mm 4 ft. 2 in.
Center hinge to front axle 1,321 mm 4 ft. 4 in.
Reach 1,528 mm 5 ft. 0.25 in.
Height to top of hood 1,625 mm 5 ft. 4in.
Height: ground clearance 190 mm 7.5 in.
Height: dump clearance 1,351 mm 4 ft. 5.25 in.
Height: bucket pin 2,476 mm 8 ft. 1.5 in.
Height: bucket raised 3,953 mm 12 ft. 11.75 in.
Width overall 1,629 mm 5 ft. 4.25 in.
Maximum width RF 1,575 mm 5 ft. 2 in.
Outside radius 5,721 mm R 18 ft. 9.25 in.
Inside radius 3,571 mm R 11 ft. 8.5 in.
Turn angle 40 degrees
Dump angle 41 degrees
Roll back angle 45 degrees