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Blast HOLE drilling rig

Rockmaster RM615A blast hole drilling rig

The newest addition to our Rockmaster series is the RM615A, a brand new second generation blast hole drilling rig. Our Rockmaster series, which is already known for its good reputation, excellent maneuverability  and overall reliability, only get's better with the addition of this drill rig.


Rokcmaster Blast Hole Drill Rig

We are confident that the RM615A going to provide a better drilling experience because of it's improved performance and maneuverability. Some of the new improvements made for our second generation Rockmaster drill rig include:

  • Better efficiency: Allows a very low fuel consumption
  • Better ground clearance: Lower of 14” but we kept the ground clearance of 17”.
  • Better rear clearance: The hose reel and the winch is partially inside the canopy for more rear clearance.
  • More traction: the ground effort is improved of 50%.
  • Bigger pull back force: 21000 lbs.
  • Stronger and practical carrousel:  much stronger and the pipe length is now std for 5m /16’-4” instead of 15’.
  • Improved rotary head:  in fact we go with RH900 of EURODRILL because is simply the best.

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Please contact us If you have any questions and we will be happy to provide you additional information on our blasting drilling rigs.
Ask for a quotation today and see why drillers around the world trust us.

Specifications and features of the Rockmaster 615A-Gen2

[-] Collapse all. [+] Expand all.

[-] Weight and Dimension

Weight 17,463 kg<>38,500 lbs
Length 9.70m<>31’-10”
Width 2.59m<> 8’- 6”
Height 3.21m<>10’- 6”

[-] Mobile-Undercarriage

Track length 4.10 m <> 13.48’
Triple grouser shoes width 381 mm <> 15”
Independent tracks oscillation ±10°
Ground clearance  431 mm <> 17”
Travel speed 3.2 km/h <> 2.0 mph

[-] Diesel power unit

Model Cummins
Power  160 hp @ 2000 rpm
Fuel consumption (Full rate) 11.2 L/h <> 2.96 gal/h
Fuel consumption (Operation) 7.2 L/h <> 1.9 gal/h
Fuel tank  151 L <> 40 galls
Filtering system  Two stage (Primary @ security)

[-] Hydraulic power unit & components: (Rexroth/Sauer/Danfoss)

Pump drive  Two (2) variable displacement piston pumps, load sensing, pressure compensated, and one (1) gear pump dedicated for accessories
Hydraulic tank capacity  207 L <> 80 gall
Filtration system  5 micron 
Hose and fittings type  «Seal lock»
Air system supply  500 psig
Integrated safety system  Over heat, low level, etc.

[-] Automatic lubricator (oiler) for the down the hole hammer

Type  Hydraulic piston pump system, Metering adjustment,Fully automatic  
Reservoir  22.7 L. <> 6 gall

[-] Water injection system

Pump model Model FMC L04
Type  Double piston pump
Volume 34 L/min <> 9 gal/min  
Pressure  38 bar <> 550 psig
Revolution  speed  500 rpm
Water tank "Stainless steel"  757 L <> 200 gall
Winter anti-freeze tank 19 L <>5 gal

[-] Boom positioning

Extension 24” <> 0.61 m
Boom swing  (15° LHS) (30° RHS)
Tilt inclination:   ±15° below, ±45° above the horizontal
Dump ±45° under, ±75° above from the vertical
Oscillation  Left/Right  (-30°/+45° pin #1) (+45°/-5° pin #2)
Hydraulic cylinders  Equipped with integrated safety locks

[-] Drilling Mast & Feed assembly

Mast structure  HD designed
Feed system hoisting and pull down power Provided by link-chain that use a hydraulic powered gear box controlled hydraulically for accurate trust
Pull down force  21,000 lbs <> 93.4 KN
Pull back capacity  21,000 lbs <> 93.4 KN
Jib winch capacity  1200 lbs <> 544 kg

[-] Carrousel

Carousel   (6) rods (3½’’ dia. x 16’-4”’ long <> 89mm x 5m)
Stars "set"  from 3" or 4" dia. rods
Operation  All function are hydraulically operated
Pipe loading  Gate for loading pipe in horizontal position

[-] Drill Head

Model Euro-drill RH900
Torque capacity motor 95 5015lbf-ft <> 6800Nm
Rotation infinity variable speed  0 - 100 rpm
Torque capacity motor 98 8113lbf-ft <> 11000Nm
Rotation infinity variable speed  0 - 86 rpm
Swivel passage  50.8 mm <> 2”

[-] Drilling table

Swivel break-out retractable jaws Swing torque  22436 lb
Clamps retractable jaws Clamps hold force 58560 lb
Max. opening   222 mm <> 8¾''

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