UNB-20 Directional drilling machine
A lightweight & portable hydraulic underground piercing unit.
UNB-20 has a full steering capability thanks to radiolocation navigation system. UNB-20 is a multifunctional unit designed for drilling in areas with limited accessibility and in confined urban spaces. The works are accomplished in two steps: 1) drilling a pilot bore with directional guidance, 2) pulling a reamer and expanding the hole by means of dry compaction. After that a new pipe is pulled into the expanded hole.
- Installation of pipelines up to 160 mm in diameter at the distances of up to 60 meters
- Replacement of old pipes up to 160 mm in diameter using the method of static pipe-bursting
The principal competitive advantage of UNB-20 is its mobility. The equipment set consists of easy assembly modules. A crew of two persons without any lifting equipment can assemble the machine at construction site and start works within 20-30 minutes.
UNB-20 can be transported with light-duty motor vehicles. No cranes or excavators are required to assemble the machine at the construction site. This is very important for the construction of pipelines in remote areas or in areas of limited accessibility.
This unit can be safely recommended for specialized construction companies with significant experience and a fleet of drilling equipment, and as well as for the companies who are new to trenchless technologies.
Options for the UNB-20 unit installation and operation:
- from the pit in the box;
- from the surface.
No bentonite mixtures required.
Soil types: up to and including the 3rd category.
Worn pipeline replacement parameters:
- easy operation;
- small overall sizes;
- low cost.
The UNB-20 unit’s principal competitive advantage is its mobility.
The equipment set consists of easily collapsible modules only.
For example, a two-person team, without any handling equipment, can assemble the machine at a construction site and begin its work within 20-30 minutes.
Light-duty motor vehicles can be used for transportation of UNB-20 units, due to their light weight.
No cranes or excavators are necessary to mount the machine at a construction site; this is very important for construction of utilities in remote areas or areas difficult to access.
We can surely recommend this unit both for specialized construction companies, having experience and owing a fleet of drilling equipment, and for entities just starting their use of trenchless technologies.