MNBL-70 Directional Drilling Machine (with laser guidance)

Download the booklet MNBL-70 (PDF 1,7 MB)


A multifunctional drilling machine with a laser guidance system for straight drilling with consistent slope and for curvilinear drilling with radio locating system.


  • Execution of straight-line drilling (including gravity sewers) with subsequent expansion of the hole to the required diameter and pulling pipe up to 315 mm (slope control with laser control system) up to 80 meters long.
  • Directional drilling with subsequent reaming of the borehole to the desired diameter from 63 mm to 400 mm at distances of up to 150 meters.
  • gnb-MNBL-70_hydrostation gnb-MNBL-70_lazercontrol
  • Trenchless replacement of underground pipelines with an increase in diameter up to 400 mm and length up to 150 meters.

Set-up and operation of MNBL-70:

  • drilling from a pit.

Bentonite mixtures and other drilling fluids are not required.
Soil types: all types except rocky soils.

It is possible to operate MNBL-70 in a special OR-1.5 shoring system, which reduces the time for preparatory work and allows the drilling operation to be carried out in protected conditions.

Technical specifications

Navigation system:

- SLK-01 Laser guidance system
- Radio locating systems: SNS1t, SNS2t

Operating temperature range:

-20° ... +40°С

Pushing force:

62 tons

Pulling force:

77 tons


1.0 t/m

Working pressure of hydraulic cylinders:

200 kg/cm3

Hydraulic Power Pack:

total power 17,7 kW

Total weight of the equipment:
- drilling unit
- lower shoring belt

1200 kg
1200 kg


Shoring system:
Length     2400 mm
Width   1960 mm
Lower belt height   1000 mm
Height of subsequent belts   800 mm

Main drilling unit:
Length      2200 mm
Width   1260 mm
Height     810 mm



Drilling parameters:
- Straight drilling length:  up to 80 m*.
- Curved drilling length:  up to 150 m*.
- Diameter of the pipe to be pulled:
  up to 400 mm.

*Drilling parameters may vary depending on geology, professional skills of the team, water saturation of soil, etc.


New pipeline material:
- Metal
- High-strength concrete
- Polyethylene


Technological and design solutions used in the manufacture of devices and equipment are the property of MEMPEX LLC and are protected by patents.