SURFACE

Sandvik launches RR880 pilot bits

Sandvik’s new range of pilot bits for raise boring has been designed to increase bit life and productivity, and reduce cost per metre

Staff reporter
The new Sandvik RR880

The new Sandvik RR880

Most raise-boring applications begin with the drilling of a pilot hole. The general length of a pilot hole varies from 30-1,000m, with standard drill pipes of 1.5m length. The time and cost involved in pulling the pipes out from a deep pilot hole is significant, and the service life of pilot bits is therefore crucial when it comes to keeping down cost and time for any raise-boring project.

One of the main reasons for changing bits in the hole is gauge wear. Consequently, in order to extend the service life of the pilot bits, Sandvik said a lot of its development work on the new bit design has focused on improving gauge protection. 

The new Sandvik RR880 premium pilot bits provide both durability and hole straightness and up to 35% longer bit life than its predecessor, substantially reducing the time and cost for changing tools, the manufacturer said.

Göran Strand, product line manager for Sandvik Mining, commented: “With the new Sandvik RR880 pilot bits, you can drill longer between bit changes. Fewer bit changes means shorter project times and increased profit at the end of the day.”

A growing series of reports, each focused on a key discussion point for the mining sector, brought to you by the Mining Magazine Intelligence team.

A growing series of reports, each focused on a key discussion point for the mining sector, brought to you by the Mining Magazine Intelligence team.

editions

Mining Magazine Intelligence Exploration Report 2024 (feat. Opaxe data)

A comprehensive review of exploration trends and technologies, highlighting the best intercepts and discoveries and the latest initial resource estimates.

editions

Mining Magazine Intelligence Future Fleets Report 2024

The report paints a picture of the equipment landscape and includes detailed profiles of mines that are employing these fleets

editions

Mining Magazine Intelligence Digitalisation Report 2023

An in-depth review of operations that use digitalisation technology to drive improvements across all areas of mining production

editions

Mining Magazine Intelligence Automation Report 2023

An in-depth review of operations using autonomous solutions in every region and sector, including analysis of the factors driving investment decisions