Tag Archives: drill rig

Redpath puts Australia’s first Sandvik DD212 into operation at Silver Lake’s Rothsay

Redpath Australia says it has taken delivery of the first Sandvik DD212 production drill in Australia, putting it into action at Silver Lake Resources’ Rothsay gold mine in Western Australia.

The DD212 is a single-boom, electro-hydraulic drill for mining development and production and has been highly anticipated in the Australian narrow-vein market, Redpath says.

Redpath Australia’s Plant Manager, Chris Riethmuller, said the contractor specifically needed a rig that could drill in a 2 x 3 m drive and was able to drill within 100 mm of each wall to minimise dilution and increase recovery.

“Sandvik Mining and Rock Solutions stepped up to the challenge to the extent of redesigning the boom configuration to accommodate the request,” he said. “We then challenged them further and requested a 12-rod carousel be fitted to both of the rigs we have ordered. Sandvik had a plan in the pipeline for this carousel but agreed to fast track the project for us.”

The carousel has not yet been fitted to the first machine working at Rothsay due to scheduling requirements but is due to arrive in June, according to Riethmuller, who said the company is looking forward to taking advantage of the increased safety and expected productivity gain this tool will deliver.

In January, Sandvik announced the introduction of the DD212 rig, an upgrade of the Sandvik DD210 development drill rig, which is designed for narrow-vein operations.

Redpath, back in April 2020, announced it had been awarded a contract to carry out underground mining services at Rothsay.

Sandvik advances narrow-vein drilling options with new DD212 rig

Sandvik Mining and Rock Solutions has introduced a new compact and intelligent single-boom electro-hydraulic drill for tunneling and mining development in narrow-vein drifts.

The Sandvik DD212 is an upgrade of the Sandvik DD210 development drill rig, and is designed for narrow-vein operations. It delivers both high level productivity and low cost of ownership, the mining OEM says.

Based on factory and field tests, the Sandvik DD212 delivers an up to 20% reduction in boom positioning time per face and a circa-15% improvement in drill penetration rate. Its 3% improved pull out ratio, meanwhile, can result in an up to 10 cm greater advance per face when compared with similar equipment.

The machine reached 93% mechanical availability during its mine site test period, accumulating 300 hours of percussion drilling within two-and-a-half months of operation.

“The drill provides great performance with net penetration rate, drill quality and rock tools improvements with zero drill rods jammed during the test period,” Sandvik added.

Among the new features are a drilling control system, the THC562, which provides torque control and reaming hole selection. This enables the DD212 to provide increased drilling performance, while reducing the wear on both the rock drill and rock tools.

The SB20i intelligent boom is used for accurate hole electronic positioning, which enables the precise and fast navigation of drill feed and tool, with automatic parallelism and instrumentation for hole angle measurements, Sandvik says. The boom offers a large face drill coverage from 6-25 m² thanks to the 1 m boom extension and the two narrow-vein type rotation actuators.

The development drill has an extended, 12 ft (3.7 m) TF feed rod, which optimises the advance/round, while its RDX5 rock drill provides a fast drilling cycle time and low operating costs.

The specific compact and versatile CFX telescopic feed, meanwhile, can retract from 12 ft to 6 ft (1.8 m), enhancing multipurpose operation in small tunnel sizes of 2.5 m x 2.5 m to 3.5 m x 3.5 m.

“The DD212 delivers accurate face drilling, cross cutting and bolting and enables mines to open smaller tunnel sections, reducing overbreak, dilution and drilling costs,” Sandvik says.

The company added: “The new DD212 brings operational safety and versatility for tackling different applications, precise electronic positioning, ergonomic operator interface and data monitoring, all leading to a superior pull-out ratio and reduced tool consumption, ensuring that the new DD212 delivers the best fit in narrow-vein drilling.”

Epiroc ups the surface drilling ante with PowerROC D60

Epiroc says its new PowerROC D60 is able to drill the largest holes in the PowerROC family thanks to a design offering high pressure operation as well as an increased penetration rate.

Wei Wen Xu, Product Company Business Line Manager at Epiroc, said: “PowerROC D60 has been working in the field for some time and has already delivered great results. This rig will definitely bring a lot of value to our customers.”

The PowerROC D60 offers a high level of productivity when it comes to drilling large holes ranging from 110 mm to 178 mm, according to Epiroc. On top of this, the 5+1 Rod Handling System makes it possible to drill holes down to a depth of 30 m. “Well-proven Epiroc technology ensure good quality and straightness of the hole,” the company said.

Features such as a pilot hydraulic system and straightforward electronic system make PowerROC D60 both easy to operate and easy to service, according to the company, with the rotary unit ensuring the rig can operate reliably in all types of rock conditions. In addition, a dust collection system ensures the work environment is kept clean and safe, protecting both machine and personnel.

“The PowerROC D60 hydraulic down-the-hole drill rig is safe, powerful and helps you increase your production capability,” Epiroc said. Matching this with the rig’s ease of maintenance and repair, ensures high availability and productivity, according to the company.

Wei Wen Xu said: “The PowerROC D60 rig performance will show that this is a very strong, competitive product for mining and quarrying. I’m convinced that this this rig will meet our customers high expectations – which is already confirmed with recent success in Russia.”

The Tier 3 version of the PowerROC D60 is available now. The Tier 4 Final version will be available in North America, Japan and Korea from July.

Sandvik focuses on exploration technology for PDAC crowd

Sandvik Mining and Rock Technology will show off its exploration technology at the upcoming Prospectors & Developers Association of Canada (PDAC) Convention on March 3-6, with the DE712 Core Drill Rig one of the highlights.

Experts will be on hand to discuss the rig at booth 1031 in the Metro Toronto Convention Centre, Sandvik said, explaining the DE712 is suitable for both directional drilling and geotechnical drilling

“This rig features a capacity of 1,126 m depth in N size and is available in both, truck- and crawler-based configurations making it easy to transport across the site. Its open and accessible design make service and maintenance tasks fast and simple,” Sandvik said.

The DE712 comes with a heavy-duty frame and a robust design, Sandvik said. It is also a space efficient drill rig featuring a drill mast supported by a strong main hoist with a failsafe brake mechanism designed for angles between vertical and 45°.

“Equipped with a powerful diesel engine, water pump and highly efficient hydraulic system, this drill is easy to learn and simple to operate while its robust and precisely engineered design has proved its durability even in the toughest working environments,” the company said.

The DE712 also features a standard automatic fire suppression system and rod spin guard, which protects the operator from the rotating rod string. The on-board Sandvik Safe-T-Spin tool provides consistent pre-torqued joint in the drill string, increasing drill rod thread life while reducing use of stillsons and other hand tools, Sandvik said.

The Sandvik booth will also feature:

  • “BSU core barrel system featuring interchangeable components and offers standard and pump-in applications in a single system. The BSU system offers greater flexibility, a more cost-efficient solution, greater safety and increased productivity. The system is user-friendly and designed for safer handling. There is no need for different coring tool systems as this multifunctional system is ideal for both surface and underground applications;
  • “A new series of impregnated diamond core bits which simplify the selection for each geological condition and deliver unsurpassed balance between best penetration rates and optimum bit life;
  • “The RE531 RC down the hole hammer (86-102 mm (3 ⅜ -4 in) designed to achieve high penetration rates in all rock conditions while providing large, uncontaminated sample return and offering increased longevity and lower cost per metre.”