The Mini 400G Grundoburst static pipe bursting system from TT Technologies is designed for tight working conditions and incorporates a specially designed bracing system for manhole applications. The system is capable of bursting and replacing ductile iron and steel pipes. Pulled by a hydraulic bursting unit, the cutter head’s 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. Quicklock bursting rods are linked together, not threaded, which saves time, prevents twisting and extends the life of the cutter head. 800/533-2078; www.tttechnologies.com.