The V-30 boring head has been designed to drill large diameter holes in a safe and efficient way. Machines Roger International maintains a tight relationship with Sandvik Mining, who is continuously developing ITH drilling rigs adapted to the V-30. The V-30 can fulfill a wide variety of drilling needs and has the capacity to bore into different types of rocks. It can achieve three different drilling methods with angles from 45 to 90 degrees: the conventional pulling method, the blind boring pushing method, and the down reaming pushing method.
3 drilling methods
The conventional way of using the V-30 Boring Head is to drill a 6.5 inches (165 mm) pilot hole and ream it to 10 inches (250 mm) to the target on the lower level. The V-30 Boring Head is then attached to the drilling rods pulled upwards.
The blind boring method is used when the targeted upper levels are difficult to reach, dangerous, or simply impossible to access, such as a site with pillar remnants. A 6.5 inches (165 mm) hole is drilled and reamed to 10 inches (250 mm) of diameter, after which the V-30 can be pushed upwards.
The down reaming method is used when the targeted levels are dangerous or hard to reach. After drilling a hole of 6.5 inches (165 mm) reamed to 10 inches (250 mm) of diameter, the boring head is installed on the drill rig and pushes downwards. This ensures the safety of workers during equipment maintenance. This ensures the safety of workers during equipment maintenance.