Equipment

MNB-50 Directional Drilling Machine

Download the booklet MNB-50 (PDF 25,5 MB)

Small-sized unit, with the pulling capacity of 50 tons, for construction of average-diameter pipelines in urban environment

Application:

Directional boring with dry method at the distance of up to 120 meters
Replacement of old pipelines up to 200 meters long

Installation and operation options for the MNB-50 unit:

from the pit (3 m long, 1 m wide)
from OR-1,5 formwork manufactured by MEMPEX (2,5 m long, 2 m wide)
from the existing well (Ø 1500 mm)

No bentonite mixtures required.
Soil types: up to and including the 3rd category.

Specifications:

General specifications:
Monitoring device:	Radar RD – 385 L
Operating temperature range:	-20° ... +40°С
Pulling capacity for pipe-jacking:	37 tons
Pulling capacity for pipe pulling into position:	50 tons
Hydraulic cylinders:	1 pc.
Rated operating pressure of hydraulic cylinders:	20 MPa
Total weight of the basic equipment (bars not included):	1100 kg
*Hydraulic unit*:
Motor:	Honda GX 690 (gasoline)
Power:	17,7 кW

Overall dimensions:

Hydraulic unit:
Length 1500 mm
Width 630 mm
Height 780 mm

Box:
Length 2750 mm
Width 920 mm
Height 1200 mm

Bar:
Length 1020 mm
Diameter 48 mm
Weight 14 kg

Key parameters:

Drilling parameters:
- Pipe-jacking length: 120 m*.
- Diameters of pipes to be laid:
63 mm, 90 mm, 110 mm, 160 mm, 225 mm, 315 mm.
- Personnel required for works: 3 persons.

Worn pipeline replacement parameters:
- New pipeline diameter**:
110 mm, 160 mm, 225 mm, 315 mm.
- Minimal old pipeline diameter: 100 mm.
- Replaced pipeline length: 150 m.
- Personnel required for works: 3 persons.

* - drilling parameters can vary and can be higher or less: they depend on geology, working team skills, soil moisture content etc.
** - with the same diameter or with higher or smaller diameter.

Pipeline types:
- Water and sewerage
- Gas
- Conduits for cables used for various purposes

Replaced pipeline material:
- Cast iron
- Reinforced concrete
- Ceramics
- Asbestos
- Steel

New pipeline material:
- Polyethylene
- Steel

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Distinctive features:

versatility;
easy operation;
reliability;
small overall sizes;
low cost.

The MNB-50 unit’s principal competitive advantage is its wide range of functions.

Minimal excavations for pits, with the surrounding areas remaining maximally untouched, make the MNB-50 unit especially appropriate for confined urban conditions.

MNB-50 works reliably under severe winter conditions in Russia, Belarus, Ukraine and Kazakhstan.

MNB-50 is the most popular unit in the relevant class, due to its good combination of price, versatility, scope of application and small sizes.

MEMPEX JSC offers new applications for MNB-50:

Since November 2009, the MNB-50 equipment kit is provided with the new hydraulic unit; not only the machine’s hydraulic power cylinder can be connected to it, but also various hydraulic equipment (such as a jackhammer, a pump, a circular saw, a chain saw, a jig saw, a drill and even a nut runner or a valve rotation device).

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