LMâ„¢ 75 Modular Core Drill0 pages

LM™ 75 Modular Core Drill
Technical Data Sheet
November 2009 Page 1 of 4
Boart Longyear is constantly striving to improve its products and must therefore, reserve the right to change designs, materials, specifications and price without notice. Copyright © 2009 BOART LONGYEAR
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PRODUCT OVERVIEW
The LM™ 75 drill offers a very flexible platform that can be mix
and matched to ensure the rig is set up specifically to meet
the end users needs.
With your choice of power pack, feed frame, rotation unit and
rod clamp you can be sure to put in as much power into the
smallest footprint possible.
FEATURES:
• Automatic, high torque rod joint break out
• Load sensing hydraulic circuitry to maximize power to
the bit
• 700 series feed frame designed with conventional drilling
in mind but can be set up for wireline easily
• 3 different feed frame lengths available for use in
confined space
• Bent axis, variable displacement hydraulic motor
provides automatic speed adjustment so that maximum
hydraulic power can be used across a wide range of
speeds
• Spring close foot clamp
• 360° turntable
• Dumping feed frame
DRILLING DEPTH GUIDELINES
The figures in these tables have been calculated, based on
field experiences, and may be reasonably expected. Actual
drilling capacity will depend on in-hole tools, conditions, drilling
techniques and equipment used.
HOLE DEPTH (METERS) HOLE DEPTH (FEET)
DRILL ROD/CORE BARREL Up Horizontal Down Up Horizontal Down
ARQTK 650 1 150 1 700 2,133 3,773 5,577
BQ 400 740 1 000 1,476 3,609 3,281
NQ 250 650 700 820 2,133 2,297
HQ 120 430 345 394 1,411 1,132
* ARQTK capacity shown for comparison purposes only. It is not recommended drilling practice to drill over 1 500 m ARQTK depth.
Note: depth capacity includes allowance for force required to break core using 10 MPa rock strength.