GBM Guided Boring Machines

These Guided Boring Machines (GBM) install small-diameter pipes with grade and alignment precision.

• Launch and reception shafts strategically located to minimize surface disruption
• Three robust jacking frame configurations
• Used in conjunction with a theodolite guidance system to provide accurate pipe installation
• Available for installation of pipe in the 4- to 48-in. OD range in displaceable soil under 50 blow count