Boltec SL: Rock bolting rig - Atlas Copco Liberia

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Boltec SL: Rock bolting rig

George Apostolopoulos

+233 21 774512

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The Boltec SL is a semi-mechanized rock bolting rig for low-seam applications. It is designed for bolt lengths from 1.5 to 1.8 meters and roof heights up to 2.5 meters. It is equipped with Atlas Copco’s electronic pilot control system for positioning, drilling and bolting and with the COP 1132 hydraulic rock drill, specially designed for bolt-hole drilling.

Features & benefits

  • MBU bolting unit for semi-mechanized bolt handling and high productivity. Handles all commonly used bolts in the 1.5 meter to 1.8 meter range.
  • Foldable protective roof for maximum accessibility and safety.
  • Electrical remote control system for positioning, drilling and bolting from a portable control panel means increased safety and high productivity.
  • COP 1132 short, high-frequency hydraulic rock drill provides a high penetration rate with excellent drill steel economy.

Technical description

Technical data

Air system
Adjustable speedNo
Air pressure gaugeYes
Capacity, max11.7 l/s at 7 bar
BoomBUT 32SL
Boom extension, max1250 mm
Lifting angle, max+65˚/-30˚
Swinging angle, max±45˚
Boom rotation180 ºangle
Bolting unit
Bolt length1.6 - 1.8 m
Bolting unitMechanical Bolt Unit MBU 16SL
Drill steel and couplingAccording to MBU, delivered with rig
Fixed seat for trammingYes
EngineDeutz 4-cylinder TD2011, L04 (Tier 3/Stage IIIA)
Power rating55 kW at 2600 rpm
Torque250 Nm at 1800 rpm
Articulated steering±35˚ steering angle
All-wheel driveYes
Axle, frontDana 112
Axle, rearDana 311/112, with integrated transmission drop box, ± 6˚ oscillation
Differential lock on front axleAutomatic
Tires 300xR15
Hydraulic jacks, front2 extendable
Hydraulic jacks, rear2
Service brakes2 separate circuits
Emergency and parking brakesSAHR
Fuel tank, volume60 l
Electrical system24 Volt
Hydrostatic power steering systemYes
Tramming lights4x70 W, 24 V
Fire extinguisherYes
Central lubrication systemYes
Spirit levelYes
Gradeability at max. load on drive wheels1:4
Control system
Control systemElectrical Direct System, EDS
Dimensions and weight
Width, without bolt rack2480 mm
Height, standard1300 mm
Turning radius, inner3550 mm
Turning radius, outer6180 mm
Electrical system
Total installed power63 kW
Main motors1x55 kW
Voltage380-690 V
Frequency50-60 Hz
Starting methodStar/delta (380-690 V)
Transformer5.5 kVA
Overload protection for electric motorsThermal
Digital volt/amperage meter in electrical cabinetYes
Phase sequence indicatorYes
Earth fault indicatorYes
Battery chargerYes
Cable reel, diameterInner 500 mm, outer 740 mm
Working lights6x200 W halogen, 230 V AC
Hydraulic system
Hydraulic pumps1 unit with 2 pumps
Pumps unloaded at startYes
Hydraulic oil tank volume140 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
Filtration20 µm
System pressure, max150 - 230 bar
Water system
Water inlet pressure, min2 bar
Capacity, max75 l/min at 7.5 bar
Rock drill
Rock drillCOP 1132
Positioning unit
Hydraulic support downwards600 mm
Hydraulic support upwards stroke400 mm
Hydraulic support, force, max80 kN
Hydraulic support, length, min1587
Protective roof, extendable400 mm
Protective roof, tiltable+8˚/-86˚
Swing arm rotation± 114˚
Tilt angle+15˚/-90˚
Feed extension, max250 mm

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George Apostolopoulos

+233 21 774512

Send an email