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Tel: +7(473) 244-71-03

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10.03.2020
    This year, the company declared  2020 the year of quality. A whole range of measures has been developed to improve the quality of products. Participation in this competition for the Prize of the Government of the Russian Federation will provide an objective expert assessment of
 
05.03.2020
    On February 28, the first meeting of the scientific and technical council was held on the territory of  Rudgormash company. This community was organized by Anatoly Nikolayevich Chekmenev, the president of Rudgormash. The council included the members of technical departments of R
 
27.12.2019
    On the last days of the departing year the working process does not stop here at Rudgormash production premisses. We are hurrying to meet the New Year with maximum result, so that we had something to remember when the clock strikes 12. We are doing this for you, our dear customers, a


 

The drilling equipment

Rotary drilling rig SBSH-250MNA-32

Rotary drilling rig SBSH-250MNA-32
 
Electric drilling rig. The machine serves to drill technological blast holes in rocks with hardness of 6-18 units according to prof. Protodyakonov scale at open mines. The drill consists of the crawler-mounting unit, the machine room and the cabin and the mast mounted on it.

Crawler-mounting unit of the drill consist of two independent bogies connected by axis with the drives on each bogie.

Track links and wheels are made of high-alloy steel with heat treatment according to unique technology.
Crawler tension is handled by a hydraulic cylinder of double-action type.
The inclined frame surface and application of supporting rollers on console axis protects the rollers from mudding by sluggish ores in wet conditions. Bearings filled with lubrication for a whole service lifetime are situated in the bearings unit.

 

Machine room is a welded construction encased in metal plates.

The insides are:
- compressor unit;
- oil pumping station with its basic elements like the major pump with the regulated productivity that feeds the required force to the drill tool and performs other operations; the axillary pump that provides fast lifting and lowering of the drill tool to make screwing and unscrewing operations; rotation unit and track drives;

- electric cabinets and other equipment.

 

Two frequency drives by Schneider Electric control the asynchronous electric motors of the track during traveling of the drill. During drilling the frequency drives switch to control asynchronous electric motors of the rotation unit and hydraulic pump.

As an option, the drill can be equipped with dry system of dust suppression that includes the dust trap, the primary refining cyclone and exhaust fan.

 

 

Cabin of the drill is welded, all-metal. It has heat/cold insulation on the walls, ceiling and floor and it provides comfortable conditions for the operator. To lower vibration when drilling the cabin can be mounted on jacks and thus separated from the machine room.

 

Anti-vibration height adjustable chair for an operator is situated in the cabin. The panels with indication of drilling parameters are used to control the drilling process and the work of the main units on the machine. Doors with secure locks and weatherstripping provide hermetical isolation while air conditioner supplies clean air and thus provides excess pressure. If the temperature lowers below zero a heater switches on. Comfortable windows provide a good view of a working process of all main parts.

 

 

Mast is a spatial construction that is attached to the pillars through sliding bearings.

The mast is lifted or lowered by two hydraulic cylinders. It is fixed with two holders. The operating position of the mast is vertical and at the angle of 10°, 15 °, 20°, 25°, 30° or 45° to the vertical.

 

Technical characteristics

 

SBSH-250MNA-32

Model
-37-37-02-37-03-37-04-37-05-37-06-37-07
Hole diameter, mm 250  250  250  250  250  250
 
250 
Rod length, m 8,2  8,2  8,2  8,2  8,2  9,77
 
8,2 
Number of rods 6 (two
separators) 
6 (two
separators) 
3
 
Depth of drilling, m 32  47  47  32  32  27
 
32 
Dust suppression wet  wet  wet  wet  wet  wet  wet 
Supply voltage, V 380  380  380  380  6000  6000
 
6000 
Total power, kWt 460  460  490  490  490  500  500 
Motor power of rotation unit, kW 90
direct
current 
90
direct
current 
90
alternating
current
with
frequency
regulation 
90
alternating
current
with
frequency
regulation 

90 alternating

currrent with frequency

regulation

 

90
alternating
current
with
frequency
regulation

 
90
direct
current 
Speed of lifting and lowering of the drill rod string,
m/min
12/12  12/12  12/12  12/12  12/12  12/12  12/12 
Speed of drill rod delivery to the face,
m/min.
0...3  0...3  0...3  0...3  0...3  0...3  0...3 
Compressor capacity, m3/min 32  32  32  32  32  32  32 
Drill rod rotation frequency, rpm. 0...120  0...120  0...120  0...120  0...120  0...120  0...120 
Power of the track drive, kWt 2 х 35
direct
current,
regulated
speed 
2 х 35
direct
current
regulated
speed 
2 х 45
alternating
current –
regulated
speed
(frequency
regulation) 
2 х 45
alternating
current –
regulated
speed
(frequency
regulation) 
2 х 45
alternating
current –
regulated
speed
(frequency
regulation) 
2 х 45
alternating
current,
regulated
speed (frequency regulation)
 
2 х 50
direct
current,
regulated
speed 
Traveling speed, km/h 0-1,2  0-1,2  0-1,3  0-1,3  0-1,3  0-1,2  0-1,2 
Max. gradeability, angle degree (°) 12  12  12  12  12  12  12 
Mass, kg. 80 000  80 000  80 000  80 000  80 000  90 000  85 000 
Overal dimensions with the mast up, m
lenght
width
height 

10.5
5.7
16.2 

10.5
5.7
16.2 

10.5
5.7
16.2 

10.5
5.7
16.2 

10.5
6.1
16.2 

10.1
6.5
18.6 

9.96
5.8
16.9 
Overal dimensions with the mast down, m
lenght
width
height 

15.6
5.7
6.6 

15.6
5.7
7.1 

15.6
5.7
7.1
 

15.6
5.7
6.6 

15.6
6,1
6.6 

18
6.5
6.6
 

16.5
5.8
6.6 
 

A set of optional equipment for the drilling rig:

  • compressor units with productivity of 32-50m³;

  • hydraulic equipment by Bosch Rexroth;

  • rods of diameters: 146mm; 168mm; 180mm; 219mm;

  • dry system of dust suppression ;

  • centralized Lincoln lubrication;

  • portable electric heating fan for heating the machine room;

  • video surveillance system;
  • cable drum
     

 

  «MMC RUDGORMASH»
tel/fax +7 (473) 244-71-03
E-mail: export@rudgormash.ru