DT922i Tunneling jumbo

Sandvik DT922i is a computer-controlled two-boom electro-hydraulic drilling jumbo with articaluated carrier for tunneling excavation of 12-125 m² cross sections, including face drilling, bolt hole drilling, and mechanized long-hole drilling.

Sandvik DT922i tunneling jumbo is fully automated, and is extremely reliable and versatile. Its new articulated carrier features a cabin with 25 % increased visibility and noise level less than 69 dB, enhancing operator comfort and safety. Sandvik DT922i is also equipped with a state-of-the-art control system and Sandvik iSURE excavation management tool, which combine to enable maximum efficiency and productivity.

Sandvik DT922i is designed to adopt to changing conditions and still function at optimum levels. Through its mobile articulated carrier, fast and adaptive drilling control for changing rock conditions, and the multivoltage option that helps converting the unit to different kind of electric networks, the machine can significantly raise your efficiency.


  • New articulated carrier enables operation in tight tunnels and narrow corners
  • Brand new cabin design for improved ergonomics and maximized safety; noise levels under 69 dB at all times
  • New intelligent drilling control system with nine different hole type settings and three alternative control methods
  • Multivoltage concept for different electric voltages at different work sites
  • Comprehensive onboard diagnostics
  • New cabin lifting system for improved visibility and adaptivity*
  • TRH mechanized rod handling system*
Modern ergonomic safety cabin of the Sandvik DT922i tunneling jumbo

* Options

Technical data
Tunnel size 9,000 - 14,800 mm (354 - 583 in.)
Coverage area 12 - 125 m² (129 - 1,345 ft²)
Hole diameter 43 - 64 mm (1 ¾ - 2 ½ in.)
Hole length Up to 5,880 mm
Rock drill RD525, 25 kW (33.5 hp)
Control system SICA (Sandvik Intelligent Control System Architecture)
Boom 2 x SB100i
Feed 2 x TF5i, 14 - 20 ft
Length 14,990 mm (49.2 ft) with 16 ft feed
Width 3,500 mm (11.5 ft) drilling
2,500 mm (8.2 ft) tramming
2,570 mm (8.4 ft) tramming with THR
Height 3,590 mm (11.8 ft)
3,190 mm (10.5 ft) with cabin lifting system
Weight (depending on options) 30,000 kg (66,140 lbs)

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