April 2019, Vol. 246, No. 4
What's New
TT Technologies
The Grundoburst static pipe bursting system uses a specially designed bladed cutter head to make bursting ductile iron and steel pipe possible. Six models are available for bursting 2-inch through 54-inch pipes and larger. It can pull in a variety of replacement pipe, including PVC, DIP, ABS, cast iron, fusion welded HDPE and VCP jacking pipe. Pulled by a hydraulic bursting unit, the cutter head’s special cutting wheels split the host pipe. An attached expander spreads and displaces the split pipe into the surrounding soil while simultaneously pulling in the new pipe. Patented QuickLock bursting rods are linked together not threaded. This saves time, prevents twisting and extends the life of the cutter head over threaded bursting rods.
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