Sandvik’s new DT912D jumbo offers intelligent drilling efficiency

Sandvik Construction is introducing what it says is a completely new tunneling jumbo, the DT912D, especially for limestone applications. The DT912D - a high reach, single boom jumbo - is completely self-contained. It is powered with a fuel-efficient and environmentally friendly Tier 4 Final diesel engine and equipped with onboard compressor and water tank for air-mist flushing. Sandvik says the state-of-the-art control system will bring increased productivity in both tunneling and underground mine pro
June 17, 2016 Read time: 3 mins
The DT912D, for limestone applications
2403 Sandvik Construction is introducing what it says is a completely new tunneling jumbo, the DT912D, especially for limestone applications.

The DT912D - a high reach, single boom jumbo - is completely self-contained. It is powered with a fuel-efficient and environmentally friendly Tier 4 Final diesel engine and equipped with onboard compressor and water tank for air-mist flushing.

Sandvik says the state-of-the-art control system will bring increased productivity in both tunneling and underground mine production.

The 24tonne jumbo is designed for fast and accurate drifting and production drilling of cross sections between 12-125m². It features a 25kW high-frequency RD525 rock drill and what Sandvik says is the most powerful engine ever installed on a diesel-hydraulic jumbo, the Cummins Tier 4 Final with 205kW.

As a standard, the jumbo has an electric controlled drilling system with added automatic functions, including one-hole automatics. There is an SB150 universal boom for large, optimally shaped coverage and full automatic parallelism. In addition to face drilling, the versatile boom can also be used for crosscutting, bolt-hole drilling and extension drilling.

An efficient 4m³ onboard compressor and an extra-large 1,000litre water tank for air-mist flushing allow the DT912D to operate independently from the tunnel or mine infrastructure and guarantee longer drilling period from one set up.

The DT912D offers rapid, safe and balanced tramming thanks to its powerful, four-wheel-drive centre articulated carrier.

Also, the ergonomic FOPS/ROPS-complied cabin keeps the noise level under 73dB (A) at all times. As an option the cabin is also available with a lifting system allowing even better visibility for tramming and drilling. This all makes the new jumbo an enjoyable workplace for the operator.

Sandvik offers several instrumentation packages from which customers can choose. The silver package is for drilling angles and depth monitoring, while the gold package offers semi-automatic drilling according to drill plan. The platinum package - the most comprehensive - has automatic boom movements and drilling cycle.

The gold and platinum packages are integrated with the Sandvik iSURE tunnel management tool for accurate drilling, charging and blasting plans. In addition, the iSURE provides useful data collection and analysis reports for improving the work cycle and process and can also be complemented with the new geoSURE rock mass analysis and visualisation system.

For more information on companies in this article

Related Content

  • Sandvik supporting aggregate production in Panama
    February 20, 2014
    Located 40km north of Panama City, Panama Development of Infrastructure (PDI) is assisting the Petaquilla Gold Mine, part of Petaquilla Minerals, in producing high quality aggregates from excavated materials at the mine. In order to support the activities of Petaquilla Minerals, the only mining company currently operating in Panama, PDI is using a selection of Sandvik drilling, crushing and screening equipment, all manufactured by, which has been supplied, and is supported by, Sandvik’s distributor in Pana
    Read More
  • Choosing the right dowel drilling equipment
    April 11, 2012
    Several aspects factor into choosing the proper concrete dowel drill - Randy Stevens. The concrete paving industry has seen significant changes to dowel drilling equipment over the years. Many years ago only hand-held models existed and when the first hydraulic drills were launched over 30 years ago, these increased production and reduced labour needs. Since that time pneumatic drills, have come to market and these are driven by air compressors, which are common on many worksites while the units also have l
    Read More
  • Tunnels and bridges, improving Argentina's major road link
    May 2, 2012
    A road improvement plus tunnel and bridge building contract in an area once inhabited by dinosaurs in northern Argentina, is a small but key part of an ambitious project to complete a road that will eventually link the Atlantic and Pacific coasts of Latin America - Adriana Potts reports. Remote, rough and spectacular are words that come to mind when describing the mountains of Ischigualasto in Argentina's northern province of San Juan This is the only place in the world where an undisturbed sequence of rock
    Read More
  • Atlas Copco launches new Chinese drill rig
    January 6, 2017
    Atlas Copco launched its new PowerROC T50 drill rig at bauma China 2014, in Shanghai. It was designed and is now built at Atlas Copco's Nanjing China facility but aimed very much at global market needs. York Yang, product manager in Nanjing joked, “We should design a product to drill holes in the customer's ground not the customer's pocket.” And with cost effectiveness in mind the T50 was developed.
    Read More

Highlighted Content