PNB LOADERS, DRILL LOADERS
PNB LOADERS, DRILL LOADERS

The loaders of of PNB type are designed for loading of mined rock loosened by a drilling-and-blasting technique or some other method when driving of horizontal and inclined workings and in extraction chambers as well as while drilling of bore holes and loading of blasted mined rock when carrying out drilling-and-blasting operations.

The machines can be used in gas and dust-hazardous mines.

1PNB2 and 2PNB2 are the base version machines and are designed for use in horizontal and inclined (up to ± 12°) workings and in extraction chambers.

1PNB2U and 2PNB2U are the machines designed for use with a safety winch in horizontal and inclined (up to 18° to the dip) workings and extraction chambers. As agreed upon with the customer the machine could be supplied without a safety winch and the latter in the future can either be installed by the customer himself or can be used without it in inclined up to ±12° workings.

1PNB2B and 1PNB2B drill loaders are designed for bore hole drilling and loading of blasted mined rock when carrying out drilling-and-blasting operations. In horizontal and inclined (up to ±12°) workings. The machine is completed with two exchangeable drilling machines:

  • electrical one – while drilling of rocks with strength of from 6 to 8 units as per Protodiakonov,
  • pneumatic machine – while drilling of rocks with hardness of from 8 to 12 units as per Protodiakonov

SPECIFICATIONS

Characteristic name 1PNB2U 1PNB2B 2PNB2 2PNB2U 2PNB2B 2PNB2-12 2PNB2B-05
Technical productive capacity, m3/min with working inclination angle of no less than   
- from 0° to -12° 2,2 2,5
- from -12° to -18° 1,25  
 
1,25  
 
 
Specific chain tracks’ ground pressure, Mpa, max 0,066 0,078 0,07 0,08 0,077 0,086
Overall dimensions, mm, max  
- length in transport position7280 7800 8000 8520 8520
- width1800 2000
- height in transport position1350 2000 1450 2340 1450 2340
Type of drive electric
Total motors’ power, kW 33,5 44,5 67 78 67 78
Power supply voltage, V 380 or 660
Mass, kg, max 7500 9000 12000 13900 13200 14800
Gathering element  
-operating memberGathering arms
-grasp, mm, max 1800 2000
Undercarriage:  
- type Crawler
- width over chain tracks, mm 1390 1540
Working speed of machine, m/s, max 0,17 0,15
Height of face drilling, mm  
3500  
 
4000  
4000
Width of drilling, mm  
3800  
 
3800  
3800
Bore hole diameter, mm  
42  
 
42  
42
Depth of drilling, mm  
2500  
 
2500  
2500
Loading height, mm 1600 1850 2950
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