Extremely safe , productive,reliable,and easy maintenance machines supplying
Single boom Jumbo drill for face drilling, cross-cut drilling,development drilling and bolt hole drilling…




KJ311 Hard rock Development drill rig


jumbos de mineração extremamente produtivos e confiáveis

Split Mountain KJ311,is a single-boom,4-wheel drive frame-steered, electro-hydraulic mining development drill rig,for underground hard-rock mines that require very high capacity and reliability.Heavy duty boom complete parallel holding,fast and flexible positioning between holes,with HC109 or HC95LM hydraulic drifter,lowers large boulders in primary drilling,avoiding time consuming and expensive costs within drifting and tunneling of 44 m² sections.Other various options of this mining drill rig make it suitable for a range of tasks, most commonly face drilling, cross-cut drilling and bolt-hole drilling. Well-designed, robust structures and proven components ensure a reliable workplace for both operators and maintenance crews.

This development drill is available in 2 different version:
a,AMSL ≤3000m,
b,3000m ≤AMSL ≤6000m
Both ideal for 5mx5m to 6mx6m or more haulage drifts development drilling,also for exploratory / exploration / surveying drifts drilling.

Quick Facts
» Drifter / rock drill: HC109 18.8 kW,
» Feed 360-degree rollover and ±135° Swing,ideal for cross cutting and bolting,
» Hole diameter: 45-88 mm with HC109 Rock Drill/Drifter,
» Coverage: 12-44 m2,
» Engine power: 60kW/2200rpm Cummins,(a type)
» Motor power:55 kW ABB.

Features
- Boom coverage and various fixed or telescopic feed lengths offer versatile multi-directional drilling capabilities in small to medium heading drifts / tunnels,
- Compact carrier allows for tramming into small drifts / tunnels,
- FOPS/ROPS-certified cabin/canopy offers increased safety for operators,
- Troubleshooting, fault finding and maintenance made easy,
- Spare part commonality across product family.


Technical Specifications
Hydraulic Drifter/Rock Drill Control System
Type HC109Anti-jamming control Yes
Percussion power 18.8kW Rotation control Adjustable/Reversible
Percussion pressure Max. 135 bar Flushing control Water flow and pressure
Percussion rate 47Hz Percussion control Adjustable power
Rotation torque 780 Nm Voltage 24V
Hole size (bolting) ∅42-102 mm Carrier
Shank adapter T45 / R38 male Type of carrier Frame-steered
Boom Carrier articulation ± 40°
Parallel holding Complete Rear axle oscillation ± 10°
Lifting angle Up55°,down 16° Cummins engine QSB-C80-31 60 kW,Tier 3
Swing left 35°,right 35° Transmission Hydrodynamic DT20000
Extension 1450 mm Front / Rear Axles DANA 123
Feed extension 1250 mm Tires 300-15
Feed roll-over angle 360° Rotaty Actuator Service brakes Hydraulic wet disc
Hydraulic System Parking and emergency brakes SAHR fail safewet disc
Powerpack 1 x 55 kW Tramming speed Max.16 km/h
Percussion pump 100 cc (variable) Gradeability / sideways tilt Max. 15° / 5°
Rotation pump 45 cc (gear) Ground clearance 320 mm
Filtration 10 µ Centralized greasing points 10 ports
Oil tank volume 200 liters Air And Water System
Cooler for hydraulic oil Oil-to-water 1 x 30 kW Flushing By water
Electric System Water pump capacity 50 l/min
Standard voltages 380 - 690 V (± 10%), 50 or 60 Hz Rock drill oil consumption 180 - 250 g/h
Total installed power 70 kW Rock drill air consumption 300 l/min
Batteries(Chargeable) 2 x 12 V, 80 Ah Air compressor 0.5 m³/min (7 bar)
Cable Reel 80m-100m Overall with steels 3.7m,others depending on options.
Cable reel lubrication Manual Weight 12000 kg
Cable reel mud clean Manual Transport length 11150 mm
Front lights 6 x 50W LED (4200 lm, 6000 K) Tramming / drilling width 1750 mm / 2788 mm
Rear lights 4 x 50W LED (4200 lm, 6000 K) Tramming / drilling height 2000 mm / 3000 mm
Percussion hour meters Optional Turning width(T-section) 3450 mm
Operator remote control Optional Turning radius(Inner/Outter) R3250 / R5700 mm
Below dimensions in mm,and against drilling steels/ rods length 3700mm.Optimum operating coverage about 20 m2.

extremely productive and reliable mining development drilling rigs

offer an ergonomic and safe workplace for both operators and maintenance personnel.

Tailor-made specifications accepted.


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