The V-30 boring head has been designed to drill large diameter holes in a safe and efficient way. Machines Roger International maintains a close relationship with Sandvik Mining, who continually develop 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 in different rock types. It can achieve three different drilling methods with angles ranging f rom 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 inch (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 and 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 drilling pillar remnants. A 6.5 inch (165 mm) hole is drilled and reamed to 10 inches (250 mm), 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 6.5 inch hole (165 mm) reamed to 10 inches (250 mm) in diameter, the boring head is installed on the drill rig and pushed downwards. This ensures the safety of workers during equipment maintenance.