This is a full side view of a P&H 250XPC blasthole drill made by Komatsu Mining.

Blasthole drills

P&H 250XPC

  • Up to 40,823 kg (90,000 lbs.) of bit loading
  • Handles 200 to 311 mm (7 7/8 to 12 ¼ in.) hole diameters
  • Up to 59.4 m (195 ft.) maximum hole depth for a single pass mast
  • Diesel powered for maximum mobility
  • Powerful top-drive, rack-and-pinion pulldown
  • Superior propel and maximum-strength crawler frames
  • Rugged masts designed for high-cycle fatigue resistance
  • Excellent operator visibility through the use of full windows and video cameras
  • Productive operator environment, including operator error protection systems

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The 250XPC rotary blasthole drill provides up to 40,823 kg (90,000 lbs.) of bit loading, specifically designed for 250 and 270 mm hole diameter applications. This drill is used in coal, copper, and diamond mines worldwide.

Working ranges

Hole diameter 200 to 311 mm 7 7/8 to 12 1/4 in. 
Single pass mast:
Standard hole depth
Maximum hole depth
 
19.8 m
59.4 m
 
65 ft.
195 ft.
Multi-pass mast:
Standard hole depth
Optional hole depth
 
73.1 m
85.3 m
 
240 ft.
280 ft.
Maximum bit loading 40,823 kg 90,000 lbs.

Mast

Construction Lattice-type using alloy steel structural shapes
Single pass mast 19.8 m   65 ft.
Multi-pass mast 12.2 m 40 ft.
Raising and lowering 267 mm 10.5 in.
Angle drilling Up to 30º in 5 degree increments (only available with multi-pass)

Hoist / pulldown

Design Dual hydrostatic / direct drive chainless rack and pinion
Bit loading (maximum) 40,823 kg 90,000 lbs.
Drill feed rate to: 13.72 m/min. 45 ft./min.
Hoist rate to: 27.43 m/min. 90 ft./min.

Overall dimensions

Width, overall 7.83 m  25 ft. 8 in.
Height, mast up 27.77 m 91 ft. 2 in.
Height, mast down 8.38 m 27 ft. 5 in.
Length, mast up 16.83 m 55 ft. 3 in.
Length, mast down 28.72 m 94 ft. 3 in.
Overall width of crawlers 5.52 m 18 ft. 1 in.
Overall length of crawlers 7.04 m 23 ft. 1 in.
Width of jacks 3.91 m 12 ft. 10 in.
Length between jacks 9.51 m 31 ft. 2.5 in.
Height to top of operator cab 4.81 m 15 ft. 10 in.

Weights (approximate)

Operating weight (maximum)  142,882 kg 315,000 lbs.
Shipping weight with mast 124,738 kg 275,000 lbs.
Ground-bearing pressure for track pads 127 kPa 18.4 psi
Ground-bearing pressure for jacks 765 kPa 111 psi
 

The electrical control system includes key operator protection systems, including:

  • Over-temperature shutdowns
  • Over-tilt protection
  • Pipe rack interlock protection
  • Pipe protection software

The following optional equipment upgrades are available for the 250XPC:

  • Bit lubrication
  • Cold weather package
  • Fire suppression
  • High altitude package
  • Remote propel control
  • Wiggins Fastfil system*

*The Wiggins and Fastfil trademarks are the property of their respective owners.