Boltec MD: Rock bolting rig - Atlas Copco Liberia

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Boltec MD: Rock bolting rig

George Apostolopoulos

+233 21 774512

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Boltec MD is a fully mechanized rock bolting rig for bolt lengths from 1.5 to 3.5 meters and roof heights up to 9.5 meters. It is equipped with a direct control system, DCS, for positioning, drilling and bolting and the COP 1132 hydraulic rock drill, specially designed for bolt-hole drilling.

Features & benefits

  • MBU bolting unit which provides fully mechanized bolt handling for high productivity. It carries 10 bolts in its carousel and can handle all of the commonly used bolts in the 1.5 meter to 3.5 meter range.
  • Direct control system, DCS, gives high productivity and precision and incorporates anti-jamming protection for better drill steel economy
  • COP 1132 short, high-frequency hydraulic rock drill gives high penetration rate and excellent drill steel economy

Technical description

Technical data

Air system
Adjustable speedYes
Air pressure gaugeYes
Air receiver50 l
Capacity, max20 l/s at 7 bar
Hydraulic driven axial piston motor10 cc
Boom extension, max1600 mm
Feed roll-over360
Lifting angle, max+65˚/-30˚
Swinging angle, max±45˚
Weight, boom only2870 kg
Feed extension 0 - 1000 mm
Bolting unit
Bolt length1.5 - 3.5 m
Bolt typesAdapted for all commonly used bolts on the market, see optional equipment
Bolting unitMechanical Bolt Unit MBU
Chain feedAdapted according to bolt length
Drill steel and couplingAccording to MBU, delivered with rig
Face plates, rectangular, max size150x150 mm
Face plates, round, max size, diameter200 mm
Magazine capacity10 bolts
Cabin, FOPS-approved, noise level <80 dB(A)Optional
Fixed seat for operatingOptional
Fixed seat for trammingYes
Air conditioning unit, with heating functionOptional
EngineDeutz 4-cylinder, TCD 2013 L04 2 V (Tier 3/Stage IIIA)
Power rating120 kW at 2300 rpm
Torque618 Nm at 1600 rpm
Articulated steering±38˚ steering angle
All-wheel driveYes
Axle, frontDana/Hurth 123
Axle, rearDana/Hurth 123, ± 8˚ oscillation
Differential lock on front axleAutomatic
Tires 12.00xR24
Hydraulic jacks, front2 extendable
Hydraulic jacks, rear2
Service brakes2 separate circuits
Emergency and parking brakesSAHR
Fuel tank, volume100 l
Electrical system24 Volt
Batteries2x125 Ah
Hydrostatic power steering systemYes
Exhaust catalyserYes
Brake lightsYes
Tramming lights8x70 W, 24 V DC
Spotlight1x70 W, 24 V
Illuminated stairs for platformYes
Fire extinguisherYes
Central lubrication systemYes
Spirit levelOne for longitudinal and one for sideways
Reverse alarmYes
Shelf for drill bits and toolsYes
Manual rig washing kitYes
Bolt/rod holderYes
Dual controls for cable/hose reelYes
Control panel for roof, jacks and cable reelYes
Gradeability at max. load on drive wheels1:4
Rock drill lubrication kitManual
TransmissionHydrodynamic, Dana/Clark 24000
Control system
Control systemDirect Control System, DCS
Dimensions and weight
Width, without bolt rack2245 mm
Height, standard2931 mm
Length13405 mm with MBU34.9
Ground clearance254 mm
Turning radius, inner4100 mm
Turning radius, outer6600 mm
Electrical system
Total installed power63 kW
Main motors1x55 kW
Voltage400-1000 V
Frequency50-60 Hz
Starting methodStar/delta (1000 V - direct start only)
Transformer8 kVA
Overload protection for electric motorsElectronic
Digital volt/amperage meter in electrical cabinetYes
Phase sequence indicatorYes
Earth fault indicatorYes
Battery chargerYes
Cable reel, diameter1600 mm
Limit switch for cable reelYes
Rain cap(s) for main electrical motor(s)Yes
Earth connectors (EMC grounding straps)Yes
Hydraulic system
Hydraulic pumps1 unit with 4 pumps
Pumps unloaded at startYes
Hydraulic oil tank volume200 - 250 l
Low oil level indicatorYes
Oil temperature gauge on oil tankYes
Electrical oil filling pumpYes
Oil filter indicatorYes
Oil/water cooler in stainless steelYes
Water cooled oilYes
Hydraulic oilMineral
Filtration16 µm
Hydraulic oil thermostatYes
System pressure, max150 - 240 bar
Water system
Water inlet pressure, min2 bar
Water pressure gaugeYes
Water flow guardYes
Water pressure switchYes
Hydraulic drive, axial piston motor5 cc
Hydraulic water booster pumpCR5-13
Capacity, max80 l/min at 7 bar
Rock drill
Rock drillCOP 1132

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George Apostolopoulos

+233 21 774512

Send an email