Auger Boring Machines Used to perform trenchless crossings across highways and railways. HDD Rigs These machines are used to cold bend a length of pipe to required angle. Bending Machine Used to perform trenchless crossings across highways, railways and water channels, usually used for longerstreams of crossing. Excavators Special wide track and long carriage CAT and L&T Excavators are used for marshy conditions Pipe layers / Side Booms These machines are used to lower the pipeline sections into the excavated trenches. Filling and Pressurizing Pumps These pumps are used for filling and pressurizing the water into the pipeline sections for hydro testing.