Designed for high torque and heavy-duty drilling, the Olivier couplers can be used for Olivier piling as well as many other drilling applications.
Here in action, Ø324mm (12¾”) drill pipes with matching Olivier couplers are used to install Ø560/760mm Olivier piles through an extremely hard soil layer, pushing the Liebherr LRB355 rigs with BAT450 rotary drives to their limits.