Optimized for underground applications, the concrete mixer MK-A5m3 is based on the proven and very durable MK-A20 dumper and is available both as an agitator and transmixer with different engine options. The MK-A5m3 is the ideal mixer for small to medium cross sections in mining and tunneling. With the robust design and the high stability the MK-A5m3 is the perfect solution for efficient and economic underground concrete transport. This machine combines high reliability and service life as well as easy serviceability.


  • Compact, simple and powerful design
  • Hard rock and tunnelling applications
  • Real concrete mixer with large volume
  • Great power per weight ratio
  • ROPS / FOPS certified cabin
  • Extremely robust GHH frame and system design resulting in lowest operating cost
  • Proven technology only
  • Water reservoir with pump and drum control


  • Main Dimensions
    Length10 421 mm
    Width2 157 mm
    Height, laden3 144 mm
    Height, laden (above cabin)2 555 mm
    Mixing drum capacity5 m³
  • Tramming Capacities
    Max. tramming speed (laden fwd/ rev on level road)
    1st gear4.5 km/h / 4.8 km/h**
    2nd gear9.5 km/h / 10.0 km/h**
    3rd gear16.0 km/h / 17.5 km/h**
    4th gear26.5 km/h / 29.5 km/h**
    (3rd and 4th gear blocked depending on application)
    Max. admissible gradient25 %
    ** Converter / Lock up mode
  • Weights
    Operating weight18 955 kg
    Payload capacity14 400 kg
    Front axle load, empty14 850 kg
    Rear axle load, empty4 105 kg
    Front axle load, loaded20 150 kg
    Rear axle load, loaded18 850 kg
  • Engine
    DesignWater cooled diesel engine
    Power output194 kW / 2 300 min-1
    Air intake systemDry air filter
    Exhaust systemCatalyst, silencer
    Starter power / voltage6.6 kW / 24 V
    Alternator current / voltage55 A / 28 V
    Emission standardEPA Tier 3/EU Stage IIIA
  • Engine Option
    TypeCummins QSB6.7
    Power output194 kW / 2 300 min-1
    Emission standardEPA Tier 4i/EU Stage IIIB
  • Drive Train
    Torque converter
    TypeSeries CL 8 000
    DesignSingle stage with Lock-up
    Power shift transmission
    TypeSeries 32 000
    DesignFour gears forward / reverse
  • Axles
    Front and rearRigid planetary axle
  • Wheels and Tires
    Front wheels
    Rim size11.25 - 25 / 2.0
    Tire size16.0 - 25
    Tire pressure5.5 ± 0.1 bar
    Rear wheels
    Rim size11.25 - 25 / 2.0
    Tire size16.0 - 25
    Tire pressure8.0 ± 0.1 bar
  • Brakes (Service and Parking)
    DesignMulti disk spring brake (SAHR)
  • Steering
    DesignSwivel joint hydr. power steering
    Steering angle± 34° - ± 42°
    Outer turn radius8 155 + 200 mm
    Inner turn radius5 045 + 200 mm
  • Steering Hydraulic System
    Pump displacement volume50 cm³/rev
    System pressure150 bar
    Number of steering cylinders2
  • Working Hydraulic System
    Pump displacement volume56 cm³/rev
    System pressure300 bar
  • Filling Volumes
    Fuel tank280 l
    Hydraulic tank150 l
    Engine with oil filter31.5 l
    Torque converter / power shift transmission36.5 l
    Front axle differential15 l
    Front axle planetary gear2 x 3.0 l
    Rear axle differential18.5 l
    Rear axle planetary gear2 x 3.0 l
  • Electrical Equipment
    Operating voltage24 V
    Battery2 x 12 V / 140 Ah
  • Lighting System
    Main / reverse headlightsLED
    Additional headlightsLED
  • Options
    Central lubrication systemCamera system
    Fire suppression, manual / autoCollision avoidance systems
    Spare wheelHigh altitude kit
    Air conditionAggressive environment kit
    Heating system