Cutter-loaders

CUTTER-LOADERS

UKD200 Cutter-Loader
UKN 400 Cutter-Loader

UKD200 CUTTER-LOADER

UKD200 Cutter-loader is manufactured based on designs made by "DONGYPROUGIEMASH"- a leading project and production association in designing the mining machinery in Ukraine and some promising designs and advanced technologies developed at NKMZ.
The machine is designed to carry out the powered cutting of coal in the high-output breakage faces with gently dipping and inclined coal seams of 0.8 to 1.3 metre thick advanced on-dip at up to 35° and up-dip at up to 10°, coal resistance to cutting up to 360 kN/metre in gassy and dustignition hazardous mines.
UKD200 Cutter-loader features a cutting machine fitted with the screw-type cutters used to break and load coal onto the mine conveyor. Screw-type cutters are arranged on the ends of the machine body that is equipped with the cutter mechanism speed reducers and the motor located between the screws when the machine is set in the face bench. The cutter-loader is set on the pan of the flight conveyor with the portal member attached to the speed reducers of the cutter mechanism. The machine travels along the flight conveyor by means of the outboard feed system.
The goal of the project is to design a high-tech UKD200 Cutter-loader with the more reliable cutter drive assembly instead of the KA80, K103M, 1K101U and 1K101UD machines being manufactured in lots now both in terms of its own scope of application and its joined operation with the 1MKDD, 1MKD90 a nd 1MKD80 coal mining complexes because the other cutter-loaders cannot be efficiently used due to their low operational reliability.

The following problems will be resolved when designing the machine:

Providing minimum thickness of the seams being worked within 0.8 to 0.9 metres;
Raising coal output from 4 to 5 tons/min at the expense of augmenting the cutter drive power up to 200 kW instead of the existing 180 kW;
Improving reliability and durability of the cutter drive assemblies and components thus extending the machine up to 500,000 hours between the overhauls instead of 200,000 hours typical for the conventional machines.

To make the machine operation easy, it is provided with the two operator's desks spaced apart on its end faces.
The machine is of a symmetrical design that enables operation both in the right-hand and left-hand faces without its disassembling.

The machine provides the following:

Machine body passage below support beams arranged in 0.85-metre thick seams;
Coal transfer below the machine body when it travels counter the conveyor chain motion;
Shuttle operating mode;
Lowering the screw cutters by 100 mm below the conveyor bearing surface;
80-per cent service life between the overhauls that amounts up to 500,000 tons of coal.

TECHNICAL DATA

Output, ton/min	3.0 ... 5.0
Applicability in terms of useful worked thickness of a scam, m	0.8 ... 1.3
Total rated drive power, kW including:	290
- cutter assembly drive	180
- outboard feed system drive	2×55
Rated voltage, V	660
Cutter assembly dia, mm	800; 900
Operating width, mm	630; 800
Max. operating feed rate, m/min	5
Traction force at max. operating speed, kN	200
Body height in Cining area over conveyor bearing surface, mm	540 ... 615
Cutting part body height, mm	415
Distance between screw axes, mm	5866
Weight, ton, no less that	14.5

UKN NARROW-CUT CUTTER-LOADER

UKN400 - This is a high-duty cutter-loader of a new generation that enables to drastically increase the coal winning output in thin coal seams, improve the face mining complex efficiency, its reliability and safety and extend the face length being worked as much as possible.

TECHNICAL DATA

Parameters	Values
Capacity, ton/min	4.0 ... 10.0
Applicability in terms of useful worked thickness of a seam, m	0.8 ... 1.5
Total rated drive power, kW, including:	420
- cutter assembly drive	2×180
- outboard feed system drive	2×30
Feed mechanism type	buil in with frequency control
Max. operating feed rate, m/min	10.0
Traction force at max. operating feed rate, kN	200
Length along the cutter assembly axes, mm	7480
Body height in lining area, mm	535 ... 620
Weight, ton	22
80-per cent service life between overhauls, ton	600 ... 800