These machines are used for big underground pipe lines up to diameter of 300mm.These machines are equipped with a high capacity vaccum blower suitable for suction of silt, stones from the pipe line. The vaccum blowers are powered by suitable Auxiliary engine ranging from 154 hp to 300 hp depending on the capacity of blowers up to 6500Cum/hr. These machines are equipped with high pressure imported or indigenous pumps up to a capacity of flow 405 Lpm. these machine can do both function of suction and jetting simultaneously. The equipment's are mounted on a suitable chassis of 25TonGVW or above.