Optimized for tough underground applications, the concrete mixer MK-A12m3 is based on the proven and very durable MK-A35 dumper and provides an extra-large drum capacity for concrete transport in big cross sections. With its front axle suspension and the swivel hinge the dump truck has an optimal ground contact even at high speeds, regardless of whether the vehicle is loaded or empty. With the bi-directional cabin the operator is able to quickly move the truck in both directions, without the need to turn the vehicle in narrow cross sections or tunnels. A trainer seat is optionally available. The proven concept is characterized by a simple structure, robust design and a high service life which is well-proven worldwide.


  • Compact, simple 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
  • Particle filters for tunnelling operations available
  • ROPS/FOPS certified cabin
  • Compliance to Australian Standards
  • Trainer seat
  • Water reservoir with pump and external drum control


  • Main Dimensions
    Length12 316 mm
    Width3 200 mm
    Height, laden (at drum)3 000 mm
    Height, laden (above cabin)2 900 mm
    Drum capacity12.0 m³
  • Tramming Capacities
    Max. tramming speed (laden fwd/rev on level road)
    1st gear5.5 km/h / 5.7 km/h**
    2nd gear9.5 km/h / 10.0 km/h**
    3rd gear16.0 km/h / 18.0 km/h**
    4th gear25.5 km/h / 31.5 km/h**
    Max. admissible gradient25 %
    ** Converter / Lock-up mode
  • Weights
    Operating weight31 650 kg
    Payload capacity35 000 kg
    Front axle load, empty22 230 kg
    Rear axle load, empty9 420 kg
    Front axle load, loaded29 400 kg
    Rear axle load, loaded37 250 kg
  • Engine
    TypeTCD2015 V06
    DesignWater cooled diesel engine
    Power output300 kW / 2 000 min-1
    Air intake systemDry air filter
    Exhaust systemCatalyst, silencer
    Starter power / voltage6.5 kW / 24 V
    Alternator current / voltage80 A / 28 V
    Emission standardTier III / COM IIIA
  • Drive Train
    Torque converter
    TypeSeries CL 8 000
    DesignSingle stage with Lock-up
    Power shift transmission
    TypeSeries 6 000
    DesignFour gears forward / reverse
  • Axles
    Front and rearRigid planetary axle
  • Wheels and Tires
    Front wheels
    Rim size22.00 - 25 / 3.0
    Tire size26.5 - 25
    Tire pressure6.5 ± 0.1 bar
    Rear wheels
    Rim size22.00 - 25 / 3.0
    Tire size26.5 - 25
    Tire pressure8.0 ± 0.1 bar
  • Brakes (Service and Parking)
    DesignMulti disk spring brake (SAHR)
  • Steering
    DesignSwivel joint hydr. power steering
    Steering angle± 42°
    Outer turn radius9 630 ± 350 mm
    Inner turn radius5 330 ± 350 mm
  • Steering Hydraulic System
    Pump displacement volume85 cm³/rev
    System pressure175 bar
    Number of steering cylinders2
  • Hydraulic System
    Pump displacement volume85 cm³/rev
    System pressure185 bar
  • Filling Volumes
    Fuel tank475 l
    Hydraulic tank430 l
    Engine with oil filter40 l
    Coolant80 l
    Torque converter/ power shift transmission circuit58 l
    Front axle differential47 l
    Front axle planetary gear2 x 4.5 l
    Rear axle differential47 l
    Rear axle planetary gear2 x 4.5 l
  • Electrical Equipment
    Operating voltage24 V
    Battery2 x 12 V / 180 Ah
  • Lighting System
    Main / reverse headlights75 / 70 W
    Additional headlights75 / 70 W
  • Options
    Central lubrication systemCamera system
    Fire suppression, manual / autoCollision avoidance systems
    Spare wheelFast fuelling system
    Air conditionAggressive environment kit