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New undercarriage for Cat MD6640 drill

Caterpillar has upgraded the MD6640 rotary drill with the new Cat 390 excavator undercarriage

Carly Leonida

The MD6640 is electrically powered and is Caterpillar’s largest rotary drill, capable of creating holes up to 349mm in diameter with bit loads up to 64t. The new undercarriage delivers 32% more drawbar...

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