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On June 17, 2019, BAUER Maschinen GmbH together with joint-venture partner Nuna Logistics Limited, part of the Nuna Group of companies – the largest Inuit-owned heavy civil construction, earthworks and mine construction contractor in Canada, successfully completed the first 228 m cutter bulk sample on FalCon project in Saskatchewan. This depth has never been reached by a trench cutter in any commercial application worldwide before and proves that Bauer cutter technology cannot only be used in specialist foundation engineering, but is also suitable for the exploration and mining industry. The FalCon Project of Rio Tinto Exploration Canada Inc. and Star Diamond Corporation is located 65 km from Prince Albert. The area, known as Fort à la Corne, hosts one of the most extensive kimberlite fields in the world. Due to the low grade of the kimberlites, Rio Tinto decided to use Bauer trench cutter technology to provide large-volume, high quality kimberlite samples for the final evaluation of the project in regards to diamond content and recovered diamond quality.
Bauer together with its partner, Nuna Logistics Limited, has now achieved a milestone and successfully completed the first cutter bulk sample to a depth of 228 m. “Groundbreaking, in more ways than one, this is a significant milestone in using proven technology for a very different application. For us it means that we will be able to make important exploration decisions on what has been, one of the most challenging diamond evaluation projects in the industry. We look forward to continuing working with Bauer to embed this technology and other new innovations in our program,” said Gary Hodgkinson, project director at FalCon. Under the present contract Bauer will execute several more bulk samples in 2019 on the FalCon project with the option to be extended into 2020.
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Trench Cutter Technology Reaches 228 m
A BAUER BC 50 cutter on a BAUER MC 128 duty-cycle crane is used for bulk sampling to a maximum depth of 250 m. In addition to the cutter and the base carrier, BAUER Maschinen GmbH supplied a BE 550 desanding plant and other accessories from its BAUER MAT Slurry Handling Systems branch. The equipment was delivered to the site on time and tested in September 2018. After a long winter break, operation started end of May 2019. The kimberlite is washed and bagged into bulk bags for further evaluation in multiple steps by the experts of Rio Tinto. The Star kimberlite on the FalCon project is covered by approximately 120 m of overburden which poses a significant additional challenge to the project.
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