dh R75t

Roadheading machine (weigth class 70 t) with telescopic cutting boom and optional integrated drilling and bolting device

Due to a machine height of 2,500 mm, a total weight of 72 t and installed cutting power of 250/275 kW the dh R75t roadheader is to a large extent identical with the dh R75 roadheader. Additionally the dh R75t features a telescopic cutting boom and is capable of cutting roadway cross sections up to 38 m². The optional integrated drilling and bolting system makes for quick installation of rock bolts and additionally offers drilling of boreholes in direction of the face for exploration or pre-lining in case of difficult roof conditions. 

features and accessories

 

  • low-height design telescopic

  • cutting boom

  • transversal cutting head / longitudinal cutting head

  • high stability during cutting by an automatic balancing system

  • online monitoring and data analysis system

  • low ground pressure

  • flameproof or non-flameproof electrics

  • radio-remote controls for roadheader and drilling/bolting device

  • drilling/bolting device with rotary drills dh DR or drifter dh DP15

  • drill feed systems for various drilling/bolting applications

  • operator's cabin (FOPS) (optional with air conditioning)

  • closed loop cooling system

  • water mist spray system

  • steal arch manipulator

  • profile control system

  • diesel powerpack for tramming

  • air compressor

  • loading apron extensions (fixed/slewable)

  • slewable service platforms

  • swivel conveyor (vertically/horizontally slewable)

  • swivel belt conveyor

  • bridge belt conveyor

  • cable reel

  • various back-end systems

Data sheet

total weight approx. (with bolting rig) 78,5 t
cutting power 250 / 275 kW
total power 410 / 435 kW
width 3000 mm
length 11950 mm
height (with drill rig) 2500 mm
cutting cross section 38 m²
rock cutting ability (UCS) ≤130 MPa
stroke of boom telescope 600 mm
width of loading apron (min.) 4400 mm
conveyor throat 780 x 500 mm
width of crawler tracks 800 / 900 mm
ground pressure (with bolting rig) 0,14 / 0,13 MPa
ground clearance 200 mm
gradeability (longitudinal) 18°
gradeability (transversal)