Rockhead spec sheet US - The Robbins Company - #1

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The Robbins Rockhead is ideal on longer utility installations (over 1,000 ft) where line and grade are critical. The Rockhead is available in Double Shield (SBU-RHDS) or Single Shield (SBU-RHSS) models. The Double Shield Rockhead is self-propelled using a gripper system. The Single Shield Rockhead must be used in conjunction with a pipe-jacking system or primary liner erected in the tailshield. Muck is removed using a small invert auger, vacuum system or muck cars. Technical Description ROCKHEAD APPLICATIONS • Line- and grade-sensitive crossings • Replacement for carbide bit and roller cone cutterheads • Long bore lengths over 1,000 ft • Pipe jacking AVAILABLE FOR PURCHASE OR LEASE The Rockhead can be steered throughout the drive from an operator’s console inside the rear shield. Articulation cylinders and stabilizer pads allow for continuous control of line and grade. The machine’s heading can be continuously monitored using a laser targeting system. Guided Tunnelling The Rockhead offers more efficient excavation than typical carbide bit or roller cone cutting heads. Most carbide cutting tools tend to break off in rock above 11,000 psi UCS. The Rockhead uses disc cutters to chip away hard rock from 4,000 to over 25,000 psi UCS. A Cost Effective Solution SBU Division Rockhead (SBU-RHSS or SBU-RHDS)