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HEADING MACHINES

  Customer's requirement and the field experience accumulated in operating similar machines were considered when designing this type of the header.

  As early as the 30-s, the 1-st phase of the well-known Metro in Moscow was worked through the use of the tunnel shields made at Novokramatorsky Mashinostroitelny Zavod.
  Now, by extending the range of products traditionally manufactured at NKMZ for the coal-mining industry based on production facilities which have been earlier used in production of the space ship and missile launch pad equipment, a new generation of the highly-efficient heading machines employed in gassy and dust-ignition hazardous mines was developed in collaboration with "DONGYPROUGUMASH" Project and Production Association.

 

P110 HEADER

P110
  This Header was designed based on the standard heading machine to carry out selective winning and loading of the rock mass when working coal and mixed faces of 7 to 25 m2 in cross-sectional area.
  The machine was put through complete tests at the mines in DONBASS region and accepted for production at commercial level. Now, this machine is being operated at 12 mines demonstrating high working rates and reliability compared to the similar machines that are in service at the mines in CIS.
  The Type P110 boom-type cutter header of the selective action is designed for the powered winning and loading of the rock mass when operating in the arch-shaped, trapezoidal or rectangular workings of 7 to 25 metres in cross-sectional area in the coal and mixed seams at dip angles of ±12° with the maximum rock strength of 100 MPa (f=7) and abrasiveness up to 15 mg in gassy and dust-ignition hazardous mines.

P110 scheme
TECHNICAL DATA
Parameters P110 P220
Efficient capacity at ultimate rock hardness, m3/min 0.3 ... 1.7 0.3 ... 3.0
Cutter motor rated power, kW 2×55 2×110
Total motor power, kW 195 305
Supply rates:
  - voltage, V 1140/660
  - current frequency, Hz 50
Overall size in a travelling position, m:
  - width 2.3 2.55
  - height 1.8 1.85
  - length 12.7 13.0
Weight, ton 41 53
Boom-type cutter P110 P220
Type: Boom-type collapsable cutter fitted with two axial cutter bit crowns
Crown dia, mm 900 950
Cutter bit type RG501D-16S, PT3212, PKC-2
Feeder P110 P220
Type: Unrotatable supporting feeder fitted with gathering arms equipped with individual synchronized hydraulic drives
Loading table width, m 2.1; 3.8 2.4; 3.3; 4.0
Undercarriage P110 P220
Type: Crawler-mounted self-propelled undercarriage bitted with two individually hydraulic-driven left-and right hand trucks
Travelling speed, m/min 0 ... 1.5; 6.0 0 ... 1.3; 5.0
Conveyor P110 P220
Chain motion speed, m/s 1.0
Trough width, mm 535 670
Hydraulic system P110 P220
Operating pressure, MPa 14 14 ... 16
Capacity, l 700 800
Spray water system P110 P220
Output, l/min 100
Water pressure at sprayers, MPa 1.5 ... 3.5

 

P220 HEADER

  The Type P220 Header is designed on the advanced designs embedded in the prototype P110 machine from which it differs in 1.5 to 2-fold capacity, capability to cut more hard rocks and to work larger cross-sectional areas in the faces and better reliability.
  The Type P220 boom-type cutter header of the selective action is designed to carry out the powered cutting and loading of the rock mass when driving the arch-shaped, trapezoidal or rectangular workings of 90 to 30 square metres in cross-sectional area with the dip angle of ±12° in the coal or mixed faces at maximum rock hardness of 120 MPa (f=8) and abrasiveness up to 18 mg in gassy and dust-ignition hazardous mines. 		P220
TECHNICAL DATA
Parameters P110 P220
Weight, ton 41 53
Cutter motor rated power, kW 1×55
2×55		 2×55
1×110
2×110
Total motor power, kW 190 195
195
305
Upper hardness limit of broken rocks, MPa 100 120
Capacity at ultimate rock hardness, m3/min 0.3 0.3
Working cross-sectional area range, m2 7 ... 25 9 ... 30
Boom sweep, metre
  - across the width 6.5 7.5
  - through the height 4.5 5.2