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Atlas Copco Surface drill rig
CM 785Technical specification
Straight forward design, ground-breaking performance1. Advanced, well proven feed system that optimizes the performance of the rock drill 2. Productive drilling in the most challenging rock conditions due to the high torque and air available 3. Proven and maintenance-friendly hydraulic control system CM 785 is intented for aggregate and cement quarries. The main components are:
Mechanized pipe handling•Automatic throttle•Max engine rpm control•Central hydraulic system test ports•Three speed cooling fan control •Tier III emission compliance•2D electronic angle indicator•Feed extension•Dual pinning for L/R horizontal drilling•Water mist system preplumbed for tank•Preseparator (with swing)•Dust collector•
Retractable dust hood•Thread greasing device •FOPS and ROPS operator safety cab•Cab air-conditioning•Work lights•Back up alarm•Heavy duty tracks with full length rock guards •Track oscillation•Variable air volume control for collaring•DTH hammer lubricator device (pneumatic)•Spindle locking plate and adapter wrench•
Hole rangePipe size Recommended hole range
3 ½”, 4” 110-165 mm 4 5/16” - 6 ½”
Hydraulic tube handling system for max hole depth, with 5 m (16,4’) tubes
7 x 5 meter + 4.4 m starter tube 39.4 m 129’
SpecificationsEngine Compressor
2 stage screw type•Workingpressure,max ....................... 24 bar 350 psi•FAD,atnormalworkingpressure ....... 405 l/s 862 cfm
Hydraulic system
Anti-jamming Automatic feed force control Hydraulic oil cooler•Maxambienttemperature ................... 52°C 125°FPumps•Axialpistonpump(2) .........................197 l/min 52 US gal/min•Tandemgearpump .............................87/87 l/min 23/23 US gal/
min•Gearpump ..........................................62 l/min 16.5 US gal/minReturnanddrainagefilters•Filtrationrate ......................................3 µm absolute
Electrical system
•Voltage ................................................ 24 V•Batteries ..............................................4x12V,145A(non-spill)•Alternator ............................................28V,95A•Worklights,front ................................ 3 x 70 W•Worklights,rear ................................. 1 x 70 W•Reversebuzzer•Warninghorn
Dust collector
•Filterarea ............................................46 m2 500 ft2
•Numberoffilterelements ...................4 pcs•Suction capacity at 500 mm wg ..........1 557 l/s 3 300 cfm•Suction hose diam ...............................202 mm 8’’•Cleaningairpressure,max .................4.14 bar 60 psi•Cleaning air consumption ...................4 l/pulse 8 cf/pulse
Volumes
•Hydraulicoiltank ............................... 568 l 150 US gal•Hydraulicsystem,total ....................... 700 l 185 US gal•Compressoroil .................................... 114 l 30 US gal•Dieselengineoil ................................. 42 l 11 US gal•Dieselengine,coolingwater .............. 76 l 20 US gal•Dieselengine,fueltank ...................... 568 l 150 US gal•Tractiongear ....................................... 8 l 2 US gal•Lubricationtank (HECL) ................... 18 l 5 US gal
Aluminium feed
Hydraulic cylinder feed with hose guide and double drill steel support with movable lower guide/dust hood•Feedextension ....................................1 150 mm 45.3”•Feedrate,max .................................... 0.88 m/s 174 ft/min•Feedforce,max ..................................34.5 kN 7 750 lbf•Tractivepull,max ...............................67.6 kN 15 200 lbf•Totallength .........................................9 500 mm 374”•Travellength .......................................5 600 mm 220.5”
CM 785
Caterpillarturbocharged,dieselengine,CATC13,TierIII/stage3•Powerratingat1800rpm ................... 328 kW 440 HP
Safety cabin
Air conditioner
•Refrigerant ..........................................R134a•Cooling capacity .................................7.4 kW•Fan suction capacity ...........................400 l/s 850 cfm
Rotary head
Rotary head Connection thread Max rpmMax torque, drilling Max torque, breaking
Suitable for DTH-hammerNm Ibf Nm Ibf
DDRH-C 3 ½ API2 ½ Z-thread 80 4 236 3 125 6 100 4 500 COP 44, COP 54GE, COP 64G
Carrier
•Trammingspeed,max ........................ 3.2 km/h 2 mph•Tractionforce,max ............................. 125.4 kN 28 192 lbf•Trackoscillation ................................. ±10°•Groundclearance ................................ 432 mm 17’’•Hillclimbingability30deg
•ROPSandFOPSapprovedwithrubbervibrationdampers•2xwiperswithwasher•Clearlaminatedglass•6-wayadjustableoperator’sseat•Cabinlight•Retractablesunshade•Riginclinationindicator•Safetyseatswitch•Rearviewmirror•Outletsocket,12V•Preparedwithmountinglocationandwiringforradio/CD
Optional equipment
Transport dimensions CM 785
Other dimensions and weightsFeed height
9 500 mm 374”
Weight
Standard unit excluding all options and drill steel
22 700 kg 50 000 lb
Height and lengthTramming position
Height 3 850 mm 151”
Length 10 750 mm 423”
Transportation position
Height 3 330 mm 131”
Length 12 100 mm 477”
3D angle indicator•3D angle indicator with depth •and speedCentral lubrication system•Feed-mounted service winch•DTH hammer lubricator •device (electric)Non-pressurizeed water mist •tank 80 galNon-pressurized water mist •tank 120 gal instead of DCT
(not in combination with 80 gal tank)Diesel driven engine pre-•heater 45.000 btuHydraulic system pressure •test kitArctic package•
- Diesel fired engine preheater 100.000 btu - Arctic hosing
- Arctic fluids - Hydraulic and fuel tank heaters - Compressor air regulator heater - Water mist tank heater - Compressed air tank . relief valve
Tramming position
Transport position
10750
3850
9500
3070
5900
5200
3400
351
2500
3330
12100
Feed swing angles
Factory setup
Coverage areas
Horizontal coverage area (mm)
CM 785
Toe hole drilling
Vertical reach (mm)
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Toe hole coverage area
Toe hole drilling coverage area (mm)
88°
22° 14°
98°
1000
1100
1430
18°
3650
3150
46°
1430
2700
1600
3700
781
3200
4500
300
4700
3700
2500
4500
Maximum horizontal reach (mm)