Like the DH type, DHU incorporates a cutter disk and also a powerful cutter motor and cone crusher that can cope with various kinds of soil.
The main body has two direction correction sections each consisting of a spherically formed structure, enabling the system to cope with sharp curves as well.
The top of the machine has an inspection hatch to enable wear of the bit to be checked during long distance propulsion.
The use of the dual shield system increases the work accuracy.
By combining a gyro-navigation and data logging system with the dual shield system, work management is facilitated.

The Dual Shield System is design for projects which undertakes long and sharp curve pipeline projects.
First, the pipe jacking method is adopted over a fixed distance of straight line and thereafter the segmental shield method is adopted to complete the sharp curve section and balance works of the pipeline construction.
This system, which combines the pipe jacking and segmental shield method provides a safe, reliable and economical solution to your pipeline construction works.