C850 D/E

C850 D/E

Big machine for a big Job!

The REL C850 D/E Super Maxx Blast Hole Drills are designed through Voice Of Customer-driven goals to perform in extremely difficult rock conditions that provide up to 120,000 lbs / 54,431 kg of bit load for 11″ (279mm) to 13 3/4” (349mm) diameter hole applications

The C850 D/E Rotary Blast Hole drill is built to take on the toughest of Mining conditions, designed for longevity for an overall reduced ownership cost.

  • The REL C850 D/E Rotary Blast Hole Drill Machines are designed to drill holes ranging from 11″ (279mm)” to 13 – 3/4 (349mm)” inches.
  • Structurally sound heavy-duty mainframe is designed for maximum reliability in rugged terrain and mining environment, better layout of the deck, ease of maintenance and enhanced safety.
  • REL C850 D/E Super Maxx Masts designed using Finite Element Analysis to achieve high cycle fatigue resistance and less downtime and costs repairing cracks.
  • Constructed of seamless rectangular tubes braced by Quend plate strength, alloy steel, the mast provides maximum rotary carriage and drill string support.
  • Ergonomically designed, FOPS certified operator’s cab provides excellent visibility and operators comfort. Provided with a clear, unobstructed view of the drilling area and areas surrounding the drill.
  • The REL C850 D/E is available with three Autonomous Package I. Basic One touch II. Fully Autonomous III. Remotely Operated Fully Autonomous Packages.

Drilling the harshest of conditions is the speciality of REL C850 D/E

Drilling Diameter11 to 13 3/4 inch279 to 349 mm
Pipe Size10 to 10-3/4 inch254 to 273 mm
SP – Single Pass depth
Tall Mast50 ft15.25 m
REL Super Maxx Drill Mast60 ft18.3 m
MP – Multi Pass depth
Tall Mast Carousel (Three pod+one rod in rotary head)200 ft60 m
Compressor2600 cfm – 100 psi74 m3/min -7 bar
Pull Down Capacity105,000 lbs47,627 Kg
Pull Up Capacity105,000 lbs47,627 Kg
Bit Load120,000 lbs54431 Kg
Feed Rate Rapid160 ft/min48.7 m/min
Rotary Torque13,800 FT-LBS / 8,300 FT-LBS18,710 Nm /11,253 Nm
Rotary Speed0-115 rpm / 0-190 rpm
HT Electric Motor1000HP745 kW
Engine1125HP839 kW
UndercarriageDouble Grouser with 800mm width & sufficient rollers
Ground Bearing pressure18.2 psi125 kPa
Speed in slope / Plain0.6 / 1.24 mph1 / 2 km/hr
Weight Estimated286,000lbs / 322,000 lbs130,000 Kg / 146,000 Kg