CAT MD6250 Technical Specifications

MD6250

Rotary Blasthole Drill

11.2 or 13.6 m (36.7 or 44.6 ft) Mast Con gurations

Technical Specifications

Con gurations and features may vary by region. Please consult your Cat® dealer for availability in your area.

Table of Contents

Speci cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Engine Choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Compressor/Receiver Choices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Climate Choices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Frame and Work Deck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Undercarriage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Hydraulics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Mast and Pipe Rack Carousel Features . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Mast Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Carousel (mast size and pipe diameter dependent) . . . . . . . . . . . . . . . . .4

Hydraulic Break Out Wrench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Drill Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Tool Package Rotary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Tool Package DTH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Rotary Head Top Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Operator Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Operating System Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Automation and Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Dust Control Choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Service Packages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Service Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Safety and Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Standard and Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

MD6250 Rotary Blasthole Drill Specifications

Engine Choices

Emissions: Equivalent to U.S. EPA Tier 2

Engine Power C27 @ 1,800 rpm

ISO 14396 616 kW 826 hp

ISO 14396 (DIN) 838 mhp (PS)

Emissions: Equivalent to U.S. EPA Tier 4 Final

Engine Power C27 @ 1,800 rpm

ISO 14396 650 kW 872 hp

ISO 14396 (DIN) 884 mhp (PS)

• Dual starter motors

• Scheduled Oil Sampling (S·O·S

• Ether starting aid (ether bottle supplied locally)

) ports

Compressor/Receiver Choices

Compressor

Rotary Drilling 56.6 m

DTH Drilling 38.2 m

DTH Drilling 42.4 m

• With the compressor’s variable volume control, the operator can limit air output resulting in reduced fuel consumption

• Electronic compressor control and regulation

• DTH selection includes tool oiler

Receiver Tank Choices

• Low pressure 8.6 bar (125 psi) for ASME/CRN/AU or CE

• High pressure 24.1 or 34.4 bar (350 or 500 psi) for ASME/CRN/ AU or CE

/min (2,000 ft3/min)

@ 8.6 bar (125 psi)

/min (1,350 ft3/min)

@ 34.4 bar (500 psi)

/min (1,500 ft3/min)

@ 24.1 bar (350 psi)

Cooling

• Coolers with easy cleaning access

• Separate engine cooling module

• All cooler core sections are replaceable

• Functional in ambient temperature up to 52° C (125° F)

• Automatic variable speed fan control

Climate Choices

Climate Level 1 Standard Fluids and Lubricants

• Rated down to –1° C (30° F)

• Withstands high heat to 52° C (125° F)

Climate Level 2 Arctic Fluids and Lubricants

• Rated down to –18° C (–0.4° F)

Climate Level 4 Arctic Fluids and Lubricants

• Rated down to –40° C (–40° F)

• Diesel  red heating system that heats and circulates engine coolant through engine block, below deck water tank, heating elements for battery trays

• Full Arctic lubricant package to include engine and hydraulic oil

• Electric heating package with breaker panel to power: 120V heating blanket for compressor receiver tank, heat trace for hosing from water tank to water pump and water fast- ll assembly, plus primary tank

• Shore power connection box with switchable 240-600V (50amp) connection (diesel gen set and/or plug supplied locally). Boxincludes standard 50 hz battery charger, if 60 hz charger required, to be ordered via after market, refer to P-n 540-4271

• Breaker panel includes  ve (5) additional breakers for locally supplied heating elements if needed

Batteries, Sealed – Quantity: Four (4)

Batteries, Sealed – Quantity: Six (6) (required for cold weather Level2 and 4 and/or semi autonomy packages)

MD6250 Rotary Blasthole Drill Specifications

Frame and Work Deck

• Leveling Jacks, A-frame/mast pivot and drill deck are welded integrally to mainframe for maximum durability and long life

• Stationary drill deck; for vertical and angle drilling

• Four leveling jacks provide leveling on a 7° bench (anyorientation)

• Primary fuel tank capacity 1416 L (374 gal)

• Fuel capacity expansion for additional 1416 L (374 gal) optionalfor total capacity of 2832 L (748 gal); (required for autonomy packages)

• Three (3) egress points on deck areas in addition to main access

• Heavy duty tow hooks (front end)

• Four (4) lift lugs, for use with cables or chains

• Fixed access stairs to the cab area

• Sturdy guardrails with toe guards, self-closing gates

Undercarriage

Model Cat® 336E EL

Excavatortype

Lower Rollers Twelve (12)

Carrier Rollers Three (3)

Track Chain Guards and Guides Level two

Drawbar Pull 417 000 N 93,745 lbf

Travel Speed 2.45 kph 1.5 mph

Triple Grousers for Hard Rock; Ground Bearing Pressure 0.88 bar (12.7 psi)

Triple Grousers for Soft Rock; Ground Bearing Pressure 1.10 bar (15.9 psi)

600 mm 23.6 in

750 mm 29.5 in

Hydraulics

• Two (2) primary pumps – 145 cc (piston, with proportional electronic controls)

• One (1) auxiliary circuit pump – 110 cc (piston, load sensing)

• Two (2) fan pumps – 74 cc (piston, with proportional electroniccontrols)

• Two (2) charge pumps – 43.9 + 56.5 cc (double stack gear,  xeddisplacement)

• Scheduled Oil Sampling (S·O·S) ports

Mast and Pipe Rack Carousel Features

11.2 m (36.7 ft) Mast

Hole Diameter Range 152-250 mm 6-9.875 in

Single-Pass Depth 11.2 m 36.7 ft

Multi-Pass Depth Down to 53.9 m Down to 176.7ft

Pull-Down Capacity Up to 20 411 kg Up to 45,000 lb

Hoist Capacity Up to 20 411 kg Up to 45,000 lb

Hoist Speed 0.81 m/sec 2.65 ft/sec

Bit Load (single pass) Up to 22 321 kg Up to 49,210 lb

13.6 m (44.6 ft) Mast

Hole Diameter Range 152-250 mm 6-9.875 in

Single-Pass Depth 13.6 m 44.6 ft

Multi-Pass Depth Down to 37.9 m Down to 124.6 ft

Pull-Down Capacity Up to 29 483 kg Up to 65,000 lb

Hoist Capacity Up to 22 113 kg Up to 48,750 lb

Hoist Speed 0.66 m/sec 2.16 ft/sec

Bit Load (single pass) Up to 32 655 kg Up to 71,993 lb

• Mast con gurations complete with pipe rack carousel and angle drilling package (vertical, out to 30 degrees in 5-degree increments)

• Hydraulically actuated, self-indexing pipe rack carousel accepts pipe diameters from 127 mm (5.0 in) to 194 mm (7.625 in)

• Drill strings con gured for bit changes (above the deck)

• Single Hydraulic Cylinder and cable system for pulldown/hoist

• Auto tensioning of pull down and hoist cables

• Variable grip hydraulic break out wrench for range of pipediameters

• Sliding deck wrench assembly

• Con gured with roller deck bushing for tricone applications, two-piece deck bushing for DTH

• Closed circuit camera in mast is used to view pipe rack carousel/ topdrive operation while racking pipes

• Drill pipe positioner

• Rotation gear box with single motor up to 160 rpm, up to 11 700 N∙m (8,629 lbf-ft) torque

MD6250 Rotary Blasthole Drill Specifications

Mast Packages

Mast Accessories Manual

11.2 m (36.7 ft) or 13.6 m (44.6ft) Mast

Mast Accessories Hydraulic

11.2 m (36.7 ft) Mast One (1) hydraulically actuated

Mast Accessories Hydraulic

13.6 m (44.6 ft) Mast One (1) hydraulically actuated

Angle Drilling Included with either mast

One (1) wire rope pipe catcher, manual bit basket

pipe catcher, hydraulically operated bit basket

pipe catcher, plus one (1) wire rope pipe catcher, hydraulically operated bit basket

Carousel (mast size and pipe diameter dependent)

• Pipe rack carousel, standard:

– 11.2 m (36.7 ft) Mast: holds quantity of four (4) 10.6 m

(35ft)pipes

– 13.6 m (44.6 ft) Mast: holds quantity of four (4) 6.1 m

(20ft)pipes

Hydraulic Break Out Wrench

Variable Grip Hydraulic BreakOut Wrench GripRanges

114-152 mm (4.5-6.0 in) 152-216 mm (6.0-8.5 in)

Drill Pipe

10.6 m (35 ft) Pipes for 11.2 m (36.7 ft) Mast – holds quantity of four (4)

127 mm 5.0 in

140 mm 5.5 in

152 mm 6.0 in

165 mm 6.5 in

178 mm 7.0 in

194 mm 7.625 in

6.1 m (20 ft) Pipes for 13.6 m (44.6 ft) Mast – holds quantity of four (4)

127 mm 5.0 in

140 mm 5.5 in

152 mm 6.0 in

165 mm 6.5 in

178 mm 7.0 in

194 mm 7.625 in

Tool Package Rotary

• One-piece roller deck bushing

• Pipe positioner rollers

• Deck wrench

• Top sub

• Bit sub

• Pipe wiper seal

Tool Package DTH

• Two-piece roller deck bushing

• Pipe positioner rollers

• Deck wrench

• Shock sub

• Top Sub

• Hammer Sub

• Pipe wiper seal

• Drill tool lubricator is included with selection of DTH Compressor

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