1547 / 2440
20-140 Edition 47
Room & Pillar
ROOF BOLTER
Caterpillar offers a single roof bolter model, the RB220.
This dual boom model is a proven, hard working and
well designed product that’s simple to operate, simple to
maintain and will provide many years of service.
Features
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Articulated steering for maneuvering.
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Both horizontal and vertical articulation on this dual
boom model.
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Floor and roof avoidance compensation.
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Individual planetary wheel drives — no sprockets or
chains.
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User-friendly operator zones.
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Single AC primary drive motor.
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Single hydraulic oil pump.
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Easy access components.
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Quick free-steering towing conversion.
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Streamlined, practical space-planned tram station.
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Safety features include ATRS system, tape-switch emer-
gency stops, automatic emergency brakes, operator’s
protective canopy, and dry-chemical fire suppression.
Roof Bolter
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Features