The newly re-engineered LF-7HB is a shearing scaler for a maximum scaling height of 7.85 m. The highly efficient shearing scaling principle is combined with the proven hydrostatic drive EDS, which enables quick reversing and sensitive roof as well as side wall scaling. In comparison with conventional impact scalers the shearing principle drastically increases scaling performance in soft rock applications and provides a high quality scaling and safer underground work environment. In order to comply with the highest safety requirements, the cabins are designed for an extremely high load and provide a very good overview in all working conditions – in particular at the scaling tools. The intelligent scaling safety system protects both the operator and machine during operation. Its wide spur and low centre of gravity guarantee a high stability even in extreme gradients. The vehicle frame of the LF 7HB is based on the proven "Super Low Profile" – concept (SLP) and consequently offers an excellent overview with its spacious cabin. Furthermore, the vehicle is also available in a SLP option with a low profile operator’s cabin to carry out efficient scaling in thin-seam deposits. The ecofriendly engine complies with the highest emission standard EU Stage IV and EPA Tier 4 final, thus minimizing the need for ventilation.


  • Efficient Drive System (EDS) for highest productivity and reduced maintenance costs
  • Intuitive two pedal control for accurate scaling
  • Advanced controls and condition monitoring systems
  • Extremely robust GHH frame and system design resulting in lowest operating cost
  • Different scaling arm lengths available
  • Super low profile machine version
  • Load sensing hydraulics for lower oil temperatures and higher energy efficiency


  • Main Dimensions
    Length (standard boom)16 426 mm
    Width (at standard cabin)3 300 mm
    Width (at drive unit)3 000 mm
    Height, (above drive unit)1 830 mm
    Height, (above standard canopy)2 440 mm
    Max. scaling height7 850 mm
    Max. scaling angle42°
  • Tramming Capacities
    Max. tramming speed17 km/h
    Max. tramming speed scaling
    (fwd/rev, on level road)
    5 k m / h
    Maximum admissible gradient28%
  • Weights
    Operating weight33 660 kg
    Front axle16 660 kg
    Rear axle17 000 kg
  • Engine
    TypeTCD 6.1 L6
    DesignWater cooled diesel engine
    Power180 kW / 2 000 min-1
    Air intake systemDry air filter
    Exhaust systemDPF/DOC-SCR
    Starter power / voltage4.0 kW / 24 V
    Alternator current / voltage80 A / 28 V
    Emission standardEU Stage 4 / EPA Tier IV final
  • Drive Train
    Pump distribution gearbox
    DesignHelical gearbox
    Axle distribution gearbox
    DesignHelical gearbox
  • Axles
    Front axleRigid planetary axle
    Rear axleRigid planetary axle
  • Wheels and Tires
    Front wheels
    Rim size19.5 - 25 / 2.5
    Tire size23.50 - 25
    Tire pressure4.5 bar
    Rear wheels
    Rim size19.5 - 25 / 2.5
    Tire size23.50 - 25
    Tire pressure4.0 bar
  • Brakes (Service and Parking)
    DesignMulti disk spring brake (SAHR)
  • Steering
    DesignSwivel joint hydr. power steering
    Steering angle± 40°
    Outer turn radius10 388 ± 200 mm
    Inner turn radius3 672 ± 200 mm
  • Steering Hydraulic System
    Pump displacement volume71 cm³/rev
    System pressure210 bar
    Number of steering cylinders2
  • Working Hydraulic System
    Pump displacement volume71 cm³/rev
    System pressure210 bar
    Number of hoist cylinders2
    Number of scaling cylinders1
  • Filling Volumes
    Fuel tank300 l
    Hydraulic tank590 l
    Engine with oil filter20 l
    Coolant45 l
    Front axle differential47 l
    Front axle planetary gear2 x 3.5 l
    Rear axle differential47 l
    Rear axle planetary gear2 x 3.5 l
    Pump distribution gearbox14 l
    Axle distribution gearbox14 l
  • Electrical Equipment
    Operating voltage24 V
    Battery2 x 12 V / 95 Ah
  • Lighting System
    Main / reverse headlightsLED (low/high beam)
    Additional headlightsLED
  • Main Options
    Central lubrication systemAir condition
    Fire suppression manual / autoCamera system
    Scaling arms lengthsCollision avoidance systems
    Cabin heights (SLP version)Radio remote control
    Open / Closed cabinSpare wheel