en.Wedoany.com Reported - Swedish engineering group Sandvik has officially launched the DD423i, a new generation of automated tunneling jumbo. This equipment is equipped with the new SB75i drill boom, increasing rock drilling coverage by 34.5% and improving cross-cut operation efficiency by 48%. During field tests at the Boliden mine in the Skellefteå region of Sweden, the equipment achieved an availability rate exceeding 95%.
The DD423i is built upon over a decade of technological accumulation from the DD422i. Sandvik stated that the DD422i, launched in 2015, established the technical benchmark in the tunneling jumbo sector of the underground mining industry over the past decade. Simon Morrissey, Sandvik's Tunneling Jumbo Product Manager, stated that the launch of the DD423i is a significant milestone for the company, with the equipment "designed to deliver higher performance, enhanced automation, and safety levels."
Regarding performance metrics, the SB75i drill boom on the DD423i features a dual-tilt mechanism design, providing superior operational accessibility in confined spaces such as room and pillar stopes. Simultaneously, the automatic boom shifting function and the integrated boom anti-collision system together enhance the speed, safety, and precision of the drilling cycle. The equipment features a newly designed cabin with a 55% larger field of view and achieves significant improvements in noise levels and dust control. The easy accessibility of key components improves maintenance efficiency, helping to reduce downtime.
The Boliden mine is located in the Skellefteå region of Sweden, an area known for its high-density, highly abrasive hard rock geological conditions, making it one of the most challenging regions for rock drilling operations in Scandinavia. Sandvik stated that this mine provided an ideal extreme working condition test environment for the DD423i. An availability rate exceeding 95% confirms the structural durability and reliability of the equipment under high-intensity hard rock drilling conditions.
The DD423i is fully compatible with Sandvik's digital mining solutions, including the Sandvik iSURE® tunnel profile and drilling plan software, DrillConnect data transfer system, iNav total station navigation system, My Sandvik remote monitoring service platform, and the Newtrax mining data platform. It aims to help mines achieve an interconnected and data-driven tunneling and drilling operation model.
Sandvik Group was founded in 1862 and is headquartered in Sandviken, Sweden. Its business covers areas such as metal cutting tools, mining and construction engineering equipment, and specialty alloy materials. It employs approximately 50,000 people across more than 130 countries and regions worldwide.
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