Description
ROBBINS SMALL BORING UNIT (SBU-A) The SBU-A is a small diameter rock cutting head (from 24″/600 mm to 72″/1.8 m) that can be used with any Auger Boring Machine (ABM) to excavate hard rock on drives less than 500 ft (150 m). The Robbins SBU-A has been proven on hundreds of jobs across the U.S. Over one hundred contractors in locations around the world have proven the SBU-A works better than any other method of excavating small diameter, hard rock bores.
ROBBINS ROCKHEAD (SBU-RHSS OR SBU-RHDS) If line and grade are critical and you have a longer bore (over 1000 ft/300 m in length) for your next project, you should consider the Robbins Rockhead. The diameter range is available between 54″ (1.35 m) and 78″ (2.0 m). The Robbins Rockhead is a powerful mid-sized tunneling machine available in both Single Shield and Double Shield models.
REMOTE CONTROLLED SMALL BORING UNIT (SBU-RC) The Remote Controlled SBU (SBU-RC) is the ultimate solution for high-precision tunneling at small diameter. Our latest innovation for mixed ground and hard rock features precision guidance and articulated steering from the surface, all in a compact package ranging from 36″ (910 mm) to 42″(1,100 mm) in diameter.