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Equipment

MNB-50 Directional Drilling Machine

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

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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:

    Mnb50 zIMG 5203 hydrostation.jpg
  • 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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