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1-phase and 3-phase input power |
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Best power to weight ratio |
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High speed drilling |
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To switch between 1-phase and 3-phase power, all that is needed is an adapter cable. |
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Only 18 kg complete with spindle unit and 9 kW output power.
Only 21 kg complete with spindle unit and integrated "carriage" for Pentruder wall saw tracks.
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With NTGRA power, you can drill at higher peripheral speeds, save time, get longer tool life and make a higher profit. |
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Wide speed range |
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Up to 600 Ø mm drill bits (750 Ø with spacer block) |
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Intuitive user interface |
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Use any of three easily exchangeable Spindle Units, SL (slow) SM (medium) or SH (high). Spindle speed range from 100 - 1440 rpm.
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The SH and SM spindle units accepts up to 350 mm drill bits without spacer block and up to 500 mm drill bits with spacer block. The SL spindle unit accepts up to 600 mm drill bits without spacer block and up to 750 mm drill bits with spacer block. |
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Very easy to operate. Easy to understand user interface. |
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29 electronic gears + Reverse |
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Easy to set power limit |
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High intensity LED’s |
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Between every numbered gear there is an extra gear for setting the spindle speed optimally. |
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The power dial can be used to limit the output power for instance when drilling with a small drill bit with the underdimensioned segments not suitable for 9 kW output power. |
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Bright LED's signals motor load, voltage and service indication to the operator.
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Start key
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Simple to use service software |
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Easily upgradeable to auto feed |
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Start key to prevent unauthorized use. |
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Simple to use software to keep track of performance, service intervals and operating data. Wireless transmission of operating data from the MDU3065 to any computer having a USB port.
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All versions of the MDU have a User Interface already prepared for Autofeed.
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The Autofeed unit can be fitted at the factory, or retrofitted by your dealer.
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Overdimensioned slip clutch |
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360º swivelling gearbox
(patented)
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Extreme stability |
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Highly reliable slip clutch system with very large spring preloaded sintered bronze friction discs, with hardened and precision ground mating steel plates. No frequent adjustments needed. |
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Just loosen two nuts and turn the gearbox to any position! Tighten the nuts and you are ready to drill in the new position. |
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For best accuracy and stability, the spindle is running on two pre-loaded SKF taper roller bearings = no play. |
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Pentruder feed gear and roller unit |
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Rigid drill stand |
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Quick Change
coupling for drill bit |
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The integrated feed gear and roller design saves weight and offers extraordinary stability. Can easily be taken off if the MDU is to be used on other drill rigs.
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A rigid drill stand is of paramount importance to efficiently use all of the MDU's power. The track is also used for wall sawing and wire sawing and is extremely rigid. Tapered couplings makes the back brqace and drill stand rigid also after many hours hard work. |
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All spindles are available with different spindle threads or a Quick Change coupling. The Quick Change coupling is a patented feature allowing for easy removal of the drill bit.
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Military grade electronics
ensures reliability
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Low maintenance and high reliability motor
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Easy angle drilling |
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Overtemperature and overvoltage protection. Perfectly designed EMC-filter for very low interference levels. Military grade frequency inverter for highest possible reliability. No mechanical or dirt sensitive connectors and switches.
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Very low maintenance due to the use of a brushless motor. Highest possible reliability through extremely rugged but yet advanced design. Motor fully encapsulated in epoxy for good cooling and reduced sensitivity for vibrations and moisture. |
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Very rigid spindle bearing arrangement makes approach and drilling at an angle much easier. The drill rig back brace is easy to adjust for angle driling.
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Self draining system |
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Water proof |
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When the MDU is in a vertical position it is self draining and there is no risk for damage from freezing water. |
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IP 67 = Water Proof = Safe overhead drilling. |
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