T4BH: Rotary blasthole drill rig - Mid-range - Atlas Copco USA

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T4BH: Rotary blasthole drill rig - Mid-range

Atlas Copco Mining and Rock Excavation

800 732 6762

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High mobility rig for DTH drilling up to 9 7/8” (251 mm) – Multi-pass

The T4BH is synonymous with mobility, power, performance and productivity. Mounted on a custom carrier, the T4BH is designed to perform in rough terrain and has been the leading blasthole drill in its class in the quarry and mining industries for over 35 years. The T4BH offers an optional angle drilling package remote propel, 7-rod drill pipe changer, torque limit control and many other options to meet your drilling needs


Features & benefits

  • The new cab design allows a direct line of sight from the operator's seat to the drill table
  • The powerpack maximizes mechanical efficiency and isolates the components from drilling and propelling shock loads
  • Tower pinning is performed remotely from within the operator's cab
  • High pressure compressors for efficient DTH drilling


Technical data

Technical Specifications
Product seriesMid-range drilling rigs
Drilling methodRotary and DTH - Multi pass
Hole diameter5 5/8 - 9 7/8 inch
Hydraulic pulldown30000 lbf
Hydraulic pullback22000 lbf
Weight on bit30000 lb
Single pass depth, option27 ft
Maximum hole depth147.5 ft
Estimated weight58000 lb
Hole diameter5.62 - 9.88 inch
Maximum hole depth, option177 ft


Atlas Copco Mining and Rock Excavation

800 732 6762

Send an email