Cat®

MD5050TTrack Drill

Specifications

General DataHole diameter 102 mm (4.0 in)Hole depth 31 m (102.5 ft)Compressor 7 m3/min (250 cfm)HPR4519 rock drill 19 kW (25 hp)

Rock Drill HPR4519Output power 19 kW (25 hp)Weight 300 kg (660 lb)Percussion pressure Up to 200 bar (2,900 psi)Blow rate 2,500-2,700 bpmRotation speed 240 rpmRotation torque 908 Nm (670 ft-lb)Drill steel 38 mm & 45 mmOptional rock drill HPR5123 23 kW (31 hp)Optional drill steel 51 mm

Feed SystemFeed extension .91 m (3 ft) Optional channel UFH16 feed for 6.1 m (20 ft) starter steel and ability to use rod changer with 3.66 m (12 ft) or 4.27 m (14 ft) changeAdjustable wear padsDrill steel thread lubricationCylinder/cable arrangementFeed swing 36˚ left 37˚ rightFeed dump 139˚ (from 0˚ off boom)`

Boom Specifications - TelescopicBoom up 36˚Boom down 29˚Boom length 2.9 m (9.5 ft)Boom swing angle 360˚Boom extension 1.2 m (4 ft)Feed swing 36˚ left 37˚ rightFeed dump 139˚ (from 10˚ off boom) Optional Knuckle BoomTotal reach 5.87 m (19 ft 3 in)

Rod ChangersCarousel (standard)Qty. x length 6 rods x 3.66 m (12 ft) or 6 rods x 4.27 m (14 ft), 45mm or 51 mm steel

SmartDrill Drilling SystemOperator-selected smooth, dependent, proportional control system for all drilling functionsMinimizes overfeedingAnti-plugAnti-plungeAnti-jam

Track Drills—MD5050T

Shipping DimensionsLength 11.4 m (37.3 ft)Width 2.7 m (8.7 ft)Height 3.5 m (11.5 ft)Weight with cab 15 512 kg (34,200 lb)

Power UnitTier III Isuzu® 4HK 4-cylinder inline turbocharged, water-cooled, direct injection, 150 kW (203 hp) at 2,100 rpm

28,000 series gearboxComplete enclosure with lockable doorsDual-element air filters with indicatorsEngine oil sump 35˚Fuel tank 303 l (80 gal)Fuel capacity Over 13 hours

Air CompressorRotary screw-type compressor 118 l/sec (250 cfm) maximum10 bar (150 psi) maximumDual-element air filters with indicatorsAuxiliary air hook-up

Hydraulic SystemPressure-compensated load-sensed piston pumpFull-flow 3 micron, in-tank filtrationSealed hydraulic tank 379 l (100 gal)Full-flow coolingManual “makeup” fill pump with 10 micron filterHydraulic test ports for troubleshooting

Cooling PackageCoolers for engine, hydraulic and compressor ambient capability 52˚ C (125˚ F)Fan assembly 762 mm (30 in) Side-by-side arrangement

Dust-Collection SystemDD950 dust collectorPrecleaner and pickup potHinge-mounted3 filter elementsFilter area 30.66 m2 (330 ft2)Reverse pulsing for cleaning

Operator’s CabROPS - ISO3471 - 1 FOPS - ISO3449<80 dB(A) noise level inside cab3.07 m2 (33 ft2) total glassModel 320 heater/air conditioner Cooling – 21,000 btu Heating – 28,000 btuComfortable adjustable seatWasher and wipers for window2-axis electronic inclinator

UndercarriageTurntable with 360˚ travel 312 Excavator with 315 SlewTriple grousers 500 mm (19.68 in) wideHydraulically released spring-applied brakesStandard rock guards Ground pressure (with cab) 51.85 kpa (7.5 psi)Ground contact length 2 780 mm (109.4 in) minimumSpeed, maximum 4 km/h (2.6 mph)Ground clearance 434.5 mm (17 in)Track gauge 2.0 m (6.5 ft)

Controls Pressure-Compensated/Load-SensedDrill hammerDrill rotationDrill feedRemote control box with 6.1 m (20 ft) tether cordTrammingBoom and feed positioning Electronics displayTachometerHourmeterDrill hour meterFuel gaugeVoltmeterEngine-oil pressureEngine-water temperatureCompressor discharge temperature Shutdown FeaturesLow engine-oil pressureHigh compressor discharge temperatureHigh engine-water temperatureLow hydraulic oil levelEmergency stop button on swing armFeed-mounted emergency stop cableTram pedal emergency stop

Track Drills—MD5050T

Track Drills—MD5050T

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AEHQ6530