The hole opener allows for a millimetre accurate laying of plastic pipes.
Following to the controlled pilot drilling in the first process step a reamer drilling with tensile steel casings protective piping is performed in the second process step.
As a third process step the drilling is enlarged during pulling back of the steel casings to the OD of the product pipes with the help of the hole opener. The excavated ground during the reaming is transported through the steel casings to the starting shaft.
Advantages:
- Laying of plastic pipes with millimetre precision
- Only one set of equipment for different diameters
- Max. 100to pulling force
- Suitable with Front Steer
- Max. outside diameter 1000mm
