The micro tunneling machine is launched from a pit through an entrance which isolates the ground from the pit.

In Micro tunneling the excavated soil is carried as a slurry mixture to the surface. Ground pressures are equalized with slurry and jacking pressure. As the tunneling machine is driven forward, jacking pipes are added on to the back of the machine, steering and guidance is accomplished by means of a laser and hydraulic steering jacks inside the tunneling machine. Micro tunneling can be used to achieve the required gradient in different ground formations and within the water table with up to 3.0 Bar of face pressure this allows for deep pipeline installation.