The LF-6 has a capacity of 6 tons and is designed specifically for narrow workings in hard rock mining and tunneling. The machine was designed for tough operating conditions with a high performance. Due to its large footbox the LF-6 provides excellent ergonomics. In combination with the MK-A20 dumper a very good advance is guaranteed.


  • Compact and powerful design
  • Hard rock and tunnelling applications
  • Great power to weight ratio
  • Extremely robust GHH frame and system design resulting in lowest operating cost
  • Customized buckets optimized for hard rock available
  • Proven technology only
  • Options such as payload weighing system or bucket shaker
  • Efficient combination with MK-A20 dumper


Information about water-cooled version can be found in the data sheet that can be downloaded on this website under Downloads.
  • Main Dimensions
    Length (tramming position) 8 764 mm
    Length (loading position) 9 169 mm
    Width (at cabin) 2 000 mm
    Width (at drive unit) 1 950 mm
    Width (at bucket) 2 040 mm
    Height, laden (above drive unit)1 670 mm
    Height, laden (above driver's canopy)2 200 mm
    Max. tipping height 1 483 mm
    Bucket capacity (SAE, heaped) 3.0 m³
  • Tramming Capacities
    Max. tramming speeds (laden fwd/rev, on level road)
    1st gear 4.0 km/h
    2nd gear 8.2 km/h
    3rd gear 14.0 km/h
    4th gear 22.5 km/h
    Maximum admissible gradient 25%
    Maximum tractive force182 kN
  • Weights
    Deadweight 19 500 kg
    Payload 6 000 kg
    Front axle, unladen8 300 kg
    Rear axle, unladen 11 200 kg
    Front axle, laden 17 300 kg
    Rear axle, laden 8 200 kg
  • Engine
    Manufacturer Deutz
    Type F8L413FW
    Design Air cooled diesel engine
    Power 136 kW / 2 300 min-1
    Air intake system Dry air filter
    Exhaust system Catalyst, silencer
    Starter power/voltage 5.4 kW / 24 V
    Three-phase alternator/voltage55 A / 28 V
  • Drive Train
    Torque converter
    Manufacturer Dana
    Type Series C 270
    Design Single stage
    Power shift transmission
    Manufacturer Dana
    Type Series 32 000
    Design Four gears forward / reverse
  • Axles
    Front axle Rigid planetary axle
    DifferentialNo Spin
    Rear axle Rigid planetary axle
    Manufacturer Kessler
    Type D91
    Differential Standard
  • Wheels and Tires
    Front wheels
    Rim size 14.00 - 25 /1.5
    Tire size 17.5 R 25
    Tire pressure 7.0 ± 0.1 bar
    Rear wheels
    Rim size 14.00 - 25 /1.5
    Tire size 17.5 R 25
    Tire pressure5.0 ± 0.1 bar
  • Brakes (Service and Parking)
    DesignMulti disk spring brake (SAHR)
  • Steering
    Design Swivel joint hydr. power steering
    Steering angle± 42°
    Outer turn radius 6 022 ± 200 mm
    Inner turn radius 3 247 ± 200 mm
  • Steering Hydraulic System
    Pump displacement volume41 cm³/rev
    System pressure 150 bar
    Number of steering cylinders2
  • Dump / Hoist Hydraulic System
    Pump displacement volume41 + 41 cm³/rev
    System pressure 190 bar
    Number of hoist cylinders2
    Number of dump cylinders1
    Boom raising time 5.0 s
    Bucket raising, from dumping position 4.1 s
  • Filling Volumes
    Fuel tank 170 l
    Hydraulic tank 190 l
    Engine with oil filter 20 l
    Torque converter / power shift transmission circuit 29 l
    Front axle differential 16 l
    Front axle planetary gear 2 x 4 l
    Rear axle differential 14.5 l
    Rear axle planetary gear 2 x 4 l
  • Electrical Equipment
    Operating voltage 24 V
    Battery2 x 12 V / 140 Ah
  • Lighting System
    Main / reverse headlights75 / 70 W
    Additional headlights70 W
  • Options
    Central lubrication Payload weighing system
    Fire suppression, manual / auto Camera system
    Spare wheel Collision avoidance system
    Ejector bucket Heating system
    Side tipping bucket High altitude kit
    Ground engagement tools (G.E.T.) Aggressive environment kit
    Armoured bucket teethRadio remote control
    Bucket shaker Optional differential combinations available