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Maximized productivity

powered by the upgraded BUT MD boom, delivering higher torsional rigidity and pinpoint drilling accuracy

Lower TCO and longer service intervals

enabled by heavy-duty cylinders, smarter hose routing as well as improved feed holder and front knuckle

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Unmatched precision and quality

achieved with High Performance Development features such as digital drill plans, Measure While Drilling and Total station navigation

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Precise productivity for your tunnel project

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BUT MD boom key features

Lower running costs - increased productivity

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Enjoy up to 30% lower running costs with the BUT MD boom, thanks to outstanding torsional rigidity and stiffness. The upgraded boom telescope will improve drilling precision, positioning speed between holes, crosscut drilling and reduce over- and underbreak, leading to an overall boost in productivity.

Top mounted feed

Epiroc - BUT MD feed
The BUT MD boom features a top-mounted feed, giving an improved coverage area and reduced dead zone.

Durable and strong hydraulic cylinders

Epiroc - BUT MD boom cylinder
The hydraulic cylinders in both rear tripod and front knuckle has been upgraded for higher durability and performance.

Optimized hose routing

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The hose routing on the BUT MD boom has been optimized to minimize interference. This improves hose life and reduces down time and service cost.

Boom telescope bearings

Epiroc - BUT MD bearing cage
The BUT MD boom features a new boom telescope bearings design with larger bearing surface. This means improvements in performance, durability and precision.

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Quality boosting automation features

Packed with smart features and productivity-increasing options, the Boomer L20 is designed to deliver superior drill quality and performance. From digital drill plans to high-accuracy navigation and data-driven drilling, every detail works together to optimize your operation. The result? Faster cycles, consistent quality and maximum productivity in every round.
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FAM III with digital drill plans

Feed Angle Measurement (FAM III) is an operator assist function that enables the use of digital drill plans with the help of positioning and angle data from sensors on the boom and feed joints.

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Total station navigation

Navigating a drill rig with the Total station provides a positional accuracy of 1 cm in all axes (x, y, and z), ensuring high drilling precision according to the digital drilling plan and accurate alignment with the tunnel line.

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Measure While Drilling

Drill parameters are collected to give information about rock conditions. Collecting MWD data is even mandatory in certain cases. These parameters are used to calculate, predict and evaluate rock conditions such as rock hardness and fracturing.