Abstract: A compact apparatus for providing a substantially pressure-tight connection between a source of a plastics component and an opening of an inner channel of a rock bolt. The apparatus includes a central block moveable to be aligned with the rock bolt, a supply pipe slidably arranged in the central block, a first force transmitter, a gripper for attaching the central block to the rock bolt, a gripper drive slidably mounted on the central block and arranged to operate the gripper, and a second force transmitter, such that the first force transmitter is arranged to press the supply pipe onto the opening of the inner channel of the rock bolt. The gripper is mounted on the central block, and the second force transmitter is arranged to operate the gripper drive to force the gripper to clamp the central block onto the rock bolt.

Abstract: The invention provides a compact apparatus for providing a substantially pressure-tight connection between a source of a plastics component and an opening of an inner channel of a rock bolt wherein the apparatus comprises a central block moveable to be aligned with the rock bolt, a supply pipe slidably arranged in the central block, a first force transmitter, a gripper for attaching the central block to the rock bolt, a gripper drive slidably mounted on the central block and arranged to operate the gripper, and a second force transmitter wherein the first force transmitter is arranged to press the supply pipe onto the opening of the inner channel of the rock bolt; wherein the gripper is mounted on the central block; and wherein the second force transmitter is arranged to operate the gripper drive to force the gripper to clamp the central block onto the rock bolt.