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Caterpillar Global Mining
Cat® Rotary drills MD6750

Cat® Rotary drills MD6750

Product catalog summary

Mainframe Components
The Cat® MD6750 Rotary Blasthole Drill features a standard air compressor with a capacity of 101.9 m3/min (3600 icfm) at 2,552 kPa (80 psi). It includes four leveling jacks with an automatic leveling system, each jack measuring 229 mm in diameter and 1,676 mm in stroke. The machine can operate on a leveling grade of up to 19% and includes an automatic single-line PLC-controlled lubrication system.

Drilling Specifications
The drill can handle hole diameters ranging from 273 mm to 444 mm (10.75 to 17.5 inches) with a single-pass hole depth of 18.29 m (60 ft). It is mounted on dual axles with a fixed rear and pivotable front, and features a chainless hydraulic drive with counter-rotating tracks.

Dimensions and Weight
The overall length of the machine is 16.21 m (53 ft 2 in), with an optional cable reel extending it to 19.81 m (65 ft). The base machine weight is 158,730 kg (350,000 lbs), with an average working weight of 183,673 kg (405,000 lbs).

Mast Components
The standard mast supports a drill pipe and one pipe rack, with a length of 18.29 m (60 ft). It features a chainless rack-and-pinion system for hoist/pulldown operations, with a bit loading capacity of 74,800 kg (165,000 lbs).

Electrical Equipment
The machine operates on a 33-phase, 60 Hz, 4,160V power system. It includes a dual shaft air compressor/AC induction motor and various DC motors for rotary drive and hoist/pulldown operations.

Options and Accessories
Optional features include angle hole drilling equipment, cold weather options, a dry dust control system, and an automatic fire suppression system. The machine also supports remote propel and water injection dust control systems.

Catalog excerpts

Mainframe Components Automatic Leveling System Standard Machine Lift - Rear 1 143 mm (45 in) Machine Lift - Front 1016 mm (40 in) Operating Leveling Grade to 19% Automatic Single Line Rotary Blasthole Drill Lower Works Crawler Mounting_ Dual Axles Fixed Rear & Pivotable Front Overall Tread Width - Standard 6.68 m (21 ft 11 in) Tread Widths - Standard 914 mm (36 in) Tread Widths - Optional Wide Links 1 067 mm (42 in) Chainless Hydraulic Drive, Standard Counter-rotating Tracks, Crawler-mounted Disc Brakes Operating Propel Guide 325% Hole Depth - Single Pass Std 18.29 m (60 ft)

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Rotary Blasthole Drill—MD6750 A U B E K C H H1 G1 G D M F2 F1 R F Optimal Working Ranges A Overall height w/mast for 60’ single pass 32.36 m (106 ft 2 in) B Height to top of handrails on operator cab 5.92 m (19 ft 5 in) C Groundline to top of deck 2.18 m (7 ft 2 in) D Groundline to bottom of rear jack pads 0.53 m (1 ft 9 in) E Groundline to top of machinery house roof 4.77 m (15 ft 8 in) F Overall width of machine 7.65 m (25 ft 1 in) F1 Centerline of machine to LH side 3.91 m (12 ft 10 in) F2 Centerline of machine to RH side 3.73 m (12 ft 3 in) G Centerline of machine to LH outside edge of 914...

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Rotary Blasthole Drill—MD6750 Mast Components Electrical Mast Standard mast for drill pipe & one pipe rack 18.29 m (60 ft) Computer analyzed, HD tubular lattice construction with back braces Raising and Lowering (2) 220 mm (9 in) diameter hydraulic cylinders 1 Angle Hole Drilling 25˚ off vertical in 5˚ increments Equipment Static DC Variable Output Hoist/Pulldown Chainless rack-and-pinion system driven by head-mounted excavator grade DC motor Bit Loading 74 800 kg (165,000 lbs) Feed Rate 7.62 m/min (to 25 fpm) Hoist Rate 30.48 m/min (to 100 fpm) Lowering Rate 30.48 m/min (to 100 fpm) Auxiliary...

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Rotary Blasthole Drill—MD6750 4 5 6 7 8 9 10 3 3 2 11 1 19 17 20 22 21 23 24 25 26 18 3 0 1' 2' 3' 4' 5' 16 3 SCALE 15 14 12 13 Components 1. Bit Viewing Hatch 9. Hydraulic Oil Cooler & Guard 18. Hydraulic Oil Reservoir 2. Tool Wrench 10. Cold Weather Damper (optional) 19. Hydraulic Valves 3. Leveling Jack (4) 11. Cable Reel (optional) 20. Air Compressor Motor Control Center (MCC) 4. Water Injection Dust Control 3,785 L (1,000 gal) 12. Boarding Stairs 21. Low Voltage Motor Control Center (MCC) 13. Main Air Compressor Package 22. Programmable Controller (PLC) 5. Hydraulic Oil Cooler 14. Main Drive...

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Cat® Rotary drills MD6750

Cat® Rotary drills MD6750

Catalog excerpts

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