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Información general

Especificaciones

Unidades:
Diámetro del orificio Hasta 311 mm (12,25") Hasta 311 mm (12,25") Less
Motor QST-30 Tier 2 QST-30 Tier 2 Less

Temperatura de operación

Altitud Hasta 4.572 m (hasta 15.000') Hasta 4.572 m (hasta 15.000') Less
Clasificación máxima ambiental (estándar) 125.0 °F 52.0 °C Less
Clasificación mínima ambiental (estándar) -20.0 °F -28.0 °C Less

Capacidad de pliegue/levantamiento

Velocidad de retracción 0 a 33,5 m/min (0 a 110 pies/min) 0 a 33,5 m/min (0 a 110 pies/min) Less
Capacidad de pliegue Hasta 383 kN (hasta 86.000 lbf) Hasta 383 kN (hasta 86.000 lbf) Less
Capacidad de levantamiento Up to 311 kN (Up to 70,000 lbf) Up to 311 kN (Up to 70,000 lbf) Less
Régimen de alimentación de perforación 0 a 33,5 m/min (0 a 110 pies/min) 0 a 33,5 m/min (0 a 110 pies/min) Less
Desplazamiento del cabezal (mástil de 16 m/50') 720.0 " 18.29 m Less
Desplazamiento del cabezal (mástil de 13 m/40') 600.0 " 15.24 m Less
Desplazamiento del cabezal (mástil de 10 m/35') 480.0 " 12.2 m Less
Cable type – 29 mm (1.125 in) DYFORM 8 DYFORM 8 Less

Sistema de mando giratorio

Capacidad de potencia 290.0 hp 216.0 kW Less
Par 0 a 15.185 N∙m (0 a 11.200 lbf-pie) 0 a 15.185 N∙m (0 a 11.200 lbf-pie) Less

Cabina del operador

Climatización Unidad de AC/calefacción/presurización montada en el techo Unidad de AC/calefacción/presurización montada en el techo Less
Área del piso 52.22 pies2 4.85 m2 Less
Altura en el interior 84.5 " 2146.0 mm Less
Ubicación A la derecha del mástil si está frente a la plataforma trasera desde el extremo trasero A la derecha del mástil si está frente a la plataforma trasera desde el extremo trasero Less
Cantidad de puertas Dos (2) con ventanas (se incluyen arriba) Dos (2) con ventanas (se incluyen arriba) Less
Cantidad de ventanas 12 12 Less
Otro Limpia/lavaparabrisas Limpia/lavaparabrisas Less
Tipo Estructura FOPS integrada certificada con montaje para impactos con capacidad para dos hombres Estructura FOPS integrada certificada con montaje para impactos con capacidad para dos hombres Less
Windows (tinted safety glass XIR laminated in rubber mounting) 0.56 " 14.0 mm Less

Tren de rodaje

Liberación del freno Automático Automático Less
Frenos Aplicado por resorte, liberado hidráulicamente Aplicado por resorte, liberado hidráulicamente Less
Delantero Tipo oscilante de tres puntos Tipo oscilante de tres puntos Less
Potencia máxima del mando por cadena 290.0 hp 216.0 kW Less
Cantidad de rodillos a cada lado 13 13 Less
Medios de ajuste de la cadena Hidráulico con pistola de engrase Hidráulico con pistola de engrase Less
Desconexión del mando de cadenas Estándar (manual) Estándar (manual) Less
Velocidad máxima de desplazamiento 1.41 mph 2.27 km/h Less
Protectores de cadena/protectores contra rocas Protectores estándar de longitud completa Protectores estándar de longitud completa Less
Gradeability mast down – CDH (cab down hill) 25% 25% Less
Gradeability mast down – CUH (cab up hill) 13% 13% Less

Mesa de perforación y plataforma de trabajo

Altura de la mesa sobre el suelo 57.0 " 1448.0 mm Less
Escotilla de visualización En la plataforma trasera; operado de forma hidráulica desde la cabina En la plataforma trasera; operado de forma hidráulica desde la cabina Less

Soportes de nivelación

Lift capacity – each 96163.0 lbf 428.0 kN Less
Número 4 4 Less
Pad diameter – Non-drill end 30.0 " 762.0 mm Less
Pad diameter – Drill end 36.0 " 914.0 mm Less

Accesorios, herramientas y equipos de manipulación

Bit Sub – Bottom thread 6 5/8 api reg 6 5/8 api reg Less
Top Adapter Sub – Bottom thread 6 Beco 6 Beco Less
Top Adapter Sub – Diameter Depende del diámetro del tubo Depende del diámetro del tubo Less
Top Adapter Sub – Length 36.0 " 914.0 mm Less
Top Adapter Sub – Top thread (API reg.) 5.5 " 140.0 mm Less
Bit Sub – Top thread 6 Beco 6 Beco Less
Drill Pipe (optional) – 16 m mast: Diameter 194 mm, 219 mm (7,625'', 8,625'') 194 mm, 219 mm (7,625'', 8,625'') Less
Drill Pipe (optional) – 16 m mast: Wall thickness 1.0 " 25.4 mm Less
Drill Pipe (optional) – 16 m mast: Length (standard for 16 m/50 ft configuration) – two pipes coupled together plus bit sub 25.0 pies 7.62 m Less
Drill Pipe (optional) – 16 m mast: Threads 6 in Beco 6 in Beco Less
Drill Pipe (optional) – 10 m mast: Diameter 194 mm, 219 mm (7.625 in, 8.625 in) 194 mm, 219 mm (7.625 in, 8.625 in) Less
Drill Pipe (optional) – 10 m mast: Wall thickness 1.0 " 25.0 mm Less
Drill Pipe (optional) – 10 m mast: Length 35.0 pies 10.67 m Less
Drill Pipe (optional) – 10 m mast: Threads 6 in Beco 6 in Beco Less
Bit Sub Drill Deck Bit Storage Box with Aluminum Covers Drill Deck Bit Storage Box with Aluminum Covers Less
Bit Sub – Table bushing Tipo de rodillo o de dos piezas con camisa reemplazable Tipo de rodillo o de dos piezas con camisa reemplazable Less
Rejilla del tubo (dentro del mástil) Carrusel con tacos fijos y placas del triturador Carrusel con tacos fijos y placas del triturador Less
Pipe Rack (Inside the Mast): 16 m configuration 7.62 m (25 ft) × 2 as starter and 4 pieces 7.62 m (25 ft) in carousel 7.62 m (25 ft) × 2 as starter and 4 pieces 7.62 m (25 ft) in carousel Less
Pipe Rack (Inside the Mast): 16 m configuration – Outside diameter 7.625 in 194.0 mm Less
Pipe Rack (Inside the Mast): 13 m configuration 12.2 m (40 ft) starter and 5 pieces of 12.2 m (40 ft) in carousel 12.2 m (40 ft) starter and 5 pieces of 12.2 m (40 ft) in carousel Less
Pipe Rack (Inside the Mast): 13 m configuration – Outside diameter 8.625 in 219.0 mm Less
Pipe Rack (Inside the Mast): 10 m configuration 10.66 m (35 ft) starter and 5 pieces of 10.66 m (35 ft) in carousel 10.66 m (35 ft) starter and 5 pieces of 10.66 m (35 ft) in carousel Less
Pipe Rack (Inside the Mast): 10 m configuration – Outside diameter 8.625 in 219.0 mm Less
Pipe Rack (Inside the Mast): 10 m configuration – Length of drill 35.0 ft 10.67 m Less
Drill Pipe (optional) – 13 m mast: Diameter 194 mm, 219 mm (7.625 in, 8.625 in) 194 mm, 219 mm (7.625 in, 8.625 in) Less
Drill Pipe (optional) – 13 m mast: Wall thickness 1.0 " 25.0 mm Less
Drill Pipe (optional) – 13 m mast: Length 40.0 pies 12.19 m Less
Drill Pipe (optional) – 13 m mast: Threads 6 in Beco 6 in Beco Less
Winch System – Rating 3500.0 lb 1588.0 kg Less
Winch System – Cable size 0.5 " 13.0 mm Less

Compresor (estándar): tornillo de una etapa, bañado en aceite

Flujo de descarga de aire (a nivel del mar) 2000.0 pies3/min 56.6 m3/min Less
Presión de operación máxima 100.0 lb/pulg² 6.9 bar Less

Compresor (optativo): tornillo de una etapa, bañado en aceite

Flujo de descarga de aire (a nivel del mar) 2400.0 pies3/min 67.9 m3/min Less
Presión de operación máxima 100.0 lb/pulg² 6.9 bar Less

Compresor (optativo): tornillo de doble etapa, bañado en aceite

Flujo de descarga de aire (a nivel del mar) 1500.0 pies3/min 42.5 m3/min Less
Presión de operación máxima 10,3/24,1/34,4 bares (150/350/500 lb/pulg²) 10,3/24,1/34,4 bares (150/350/500 lb/pulg²) Less

Engine (Optional) – QST30C (Non-Cert with Cense): Option 1

Model QST30C (Non-Cert with Cense) QST30C (Non-Cert with Cense) Less
Rated horsepower 1050.0 hp 786.0 kW Less
Fuel tank 1514 L plus, 1703 L (400 gal plus, 450 gal) 1514 L plus, 1703 L (400 gal plus, 450 gal) Less

Configuración del mástil de 10, 13 o 16 metros

Diámetro del orificio Hasta 311 mm (12,25") Hasta 311 mm (12,25") Less
16 m/50 ft mast – Depth single pass 54.0 pies 16.46 m Less
16 m/50 ft mast – Multi-pass Up to 46.9 m (Up to 154 ft) Up to 46.9 m (Up to 154 ft) Less
13 m/40 ft mast – Depth single pass 44.0 pies 13.4 m Less
13 m/40 ft mast – Multi-pass Up to 74.4 m (Up to 244 ft) Up to 74.4 m (Up to 244 ft) Less
10 m/35 ft mast – Depth single pass 33.8 pies 10.29 m Less
10 m/35 ft mast – Multi-pass Up to 63.4 m (Up to 208 ft) Up to 63.4 m (Up to 208 ft) Less

Bastidor principal, plataformas y pasarelas

Gatos, pivote del mástil y plataforma Se suelda integralmente al bastidor principal Se suelda integralmente al bastidor principal Less
Plataforma de la máquina Acceso a ambos lados Acceso a ambos lados Less

Engine (Standard) – QST-30 Tier 2

Model QST-30 Tier 2 QST-30 Tier 2 Less
Rated horsepower 850.0 hp 627.0 kW Less
Fuel tank 1514 L plus, 1703 L (400 gal plus, 450 gal) 1514 L plus, 1703 L (400 gal plus, 450 gal) Less

Engine (Optional) – QST30C (Non-Cert with Cense): Option 2

Model QST30C (Non-Cert with Cense) QST30C (Non-Cert with Cense) Less
Rated horsepower 1050.0 hp 783.0 kW Less
Full load 2100.0 rpm 2100.0 rpm Less
Fuel tank 1514 L plus, 1703 L (400 gal plus, 450 gal) 1514 L plus, 1703 L (400 gal plus, 450 gal) Less

Drill Configuration Choices

Configuration Choices 1-3


MD6420B Equipos estándar

CAPABILITY
  • The MD6420B crawler-mounted blasthole drills are designed to drill up to 311 mm (12.25 in) diameter holes with rated pulldown and hoist capacity up to 39 009 kg (86,000 lb).

ENGINE
  • Remote jump start terminals
  • Exhaust blankets
  • Engine pre-lube
  • Additional fuel filtration
  • Coolant conditioner

MAST
  • Up to 311 mm (12 1/4 in) hole diameter
  • Up to 39 009 kg (86,000 lb) rated capacity single cylinder pulldown/hoist system
  • HOBO (Hydraulically Operated Break Out) wrench operated from the cab
  • Up to 30 degree angle drilling package and mast locks and indicator in cab
  • Winch system 1588 kg (3,500 lb) capacity
  • Auto cable tensioning system
  • Two stage mast raise cylinders
  • Pipe guide roller assembly
  • Removable mast lock bushings
  • Wide hinged seal dust hood
  • Mast lanyard tapped mounting plates
  • Sheave/feed rope guards
  • Roller pipe catcher arm (upper) (ONLY 13 m or 16 m mast)
  • Hydraulic safety arm/rod catcher
  • Additional mast rests mounted on non-drill end (ONLY 13 m or 16 m mast)
  • Mast grating
  • Winch rope guide for drill pipe loading

TOP DRIVE
  • Two (2) motors
  • Torque up to 15 185 N∙m (11,200 lbf-ft)

OPERATOR’S CAB
  • Large cab with 4.9 m2 (52.2 ft2) floor space and walkway with railing
  • Integrated FOPS
  • Totally enclosed and insulated extra large two-man cab
  • Full front drill deck window with protective cage
  • dB(A) rating of 72 or less
  • Two (2) hinged doors with heavy duty door latching system
  • Twelve (12) windows – safety glass with window tint and window shades on four (4) windows
  • Roof window with protective cage
  • Ergonomic operator’s console with split control panel and full instrumentation
  • Operator’s console with stainless steel panels and back-lit gauges
  • Ergonomic operator’s seat with retractable seat belt
  • All electric controls for drilling, tramming, leveling plus auxiliary functions
  • Auxiliary functions operated by fingertip switches
  • Roof mounted air conditioning/heating/pressurizing unit; hydraulic driven
  • Windshield wipers and washer kit
  • CD stereo kit complete with speakers
  • Cab ladder and roof platform plus railing
  • Drill performance and monitoring/diagnostics system complete with full interlock system
  • Auto leveling
  • Rotary torque control
  • Basic engine shut down timer
  • Slope indicator mounted in cab to indicate forward and lateral angle
  • 24V to 12V DC converter
  • Aluminum kick plates
  • Luncheonette fridge and microwave (power only)

DIGSY CONTROL – MONITORING – DIAGNOSTIC SYSTEM (CANbus based)
  • ECM (Electronic Control Module) provides fast and reliable control of all drill functions
  • ECM configuration is de-centralized – with short wire-runs
  • Drill multi-monitor integrated with the control system to monitor drill operation and health, allowing quick and accurate diagnostics. An operator can gather all the necessary data assuring safe, ergonomic and efficient operation and production

INTERLOCK SYSTEMS
  • Tram interlock, jacks (FL, FR, RL, RR)
  • Tram interlock, pipe in hole
  • Tram interlock, ladder down
  • Tram interlock (mast not up and locked or down and parked)
  • Tram interlock, machine outside stability limits
  • Tram interlock, dust skirt not up
  • Filter indicators
  • Drill function interlock, carousel not parked
  • Drill function interlock, carousel in load position
  • Head clear
  • Drill function interlock, mast up and locked
  • Drill function interlock, pipe safety bar not closed
  • Water injection pump interlock
  • Pipe support interlock
  • Winch up interlock
  • High/low speed select (high only when mast is down)

UNDERCARRIAGE
  • Crawler mounted, excavator type Cat 349E L
  • 750 mm (29.5 in) triple grousers
  • Full length rock guards
  • Tram distance meter

MAINFRAME, DECKS AND WALKWAYS
  • Stationary rear deck
  • Sliding viewing hatch in the rear deck; hydraulically operated from the cab
  • Walk-around front deck
  • Four (4) hydraulic leveling jacks, 122 cm (48 in)
  • Total 3217 L (850 gal) fuel tanks with isolation valves
  • Drill deck bit storage box with aluminum covers
  • 4 × 8D maintenance free batteries
  • Stainless battery box pull-out tray
  • Spring loaded swing gates
  • Hose restraint on air hoses
  • Low coolant level switch
  • Exane wiring
  • Stainless junction boxes
  • EMS lap top harness/terminal mounted in main junction box
  • Additional loop filters between pumps and motors
  • Eight (8) engine shutdowns
  • Hydraulic rear dust curtain
  • 500-hour engine oil reserve system
  • Air hose safety sleeves (whip socks)
  • Firewall between engine and pump drive
  • Mast access ladder
  • Air cleaner vacuator valves

CAROUSEL
  • Hydraulically operated from the cab
  • Semi-automatic indexing
  • Nylon pipe rack pivot bearings

COOLING (SPLIT COOLERS)
  • Maximum ambient cooling capacity of 52° C (125° F) (replaceable cores)
  • Variable speed fan arrangement for coolers
  • Radiator caps pressure release system

HYDRAULIC SYSTEM
  • Two (2) variable displacement axial piston pumps, in closed loop system, that operate the drill rotation, pulldown/hoist and tram functions
  • One (1) variable displacement axial piston pump, in closed loop system on demand, that operates auxiliary functions
  • Two (2) gear pumps with proportional speed control that operate the cooling fans
  • Dual filtration; return/drain
  • Hydraulic pressure test points
  • Hydraulic tank isolation valves with interlocks
  • Electronic pressure control with feedback on all auxiliary functions
  • Pump drive gearbox temperature sensor

DRILL ACCESSORIES (TRICONE/ROTARY)
  • Top sub adapter
  • Roller deck bushing
  • Bit sub
  • Horseshoe bushing
  • Bit basket
  • Auto tool wrench
  • Lifting bail

DUST SYSTEM
  • Based on DCA ordered

PAINT
  • Standard Caterpillar colors

MISCELLANEOUS
  • Tram alarm
  • Filter kit for 50-hour preventive maintenance
  • Twenty (20) LED lights for night drilling
  • Handrails with side boarding ladders
  • Lift kit
  • Heavy duty tow hooks (front end)
  • Battery disconnect (2 pole)

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