Caterpillar® is the global market leader and supplier of complete underground longwall systems. All over the world, CAT equipment and systems are meeting the demands of underground mining under the most stringent conditions. Adapted to the mining challenges faced by our customers today, CAT customized systems range from hydraulic roof supports, automated plow systems, shearers, face conveyors and drive systems to automation and roof support carriers. Caterpillar delivers your system of choice, from low- to high-seam heights, for the longest longwalls and highest production demands.
Contact us today to talk with one of our representatives about our CAT underground – longwall systems.
Armored Face Conveyors
Model
Top Plate Thickness
Bottom Plate Thickness
Dogbone Breaking Force
Top Plate Thickness
40 mm (1.57 in)Bottom Plate Thickness
0.98 in / 25.0 mmBottom Plate Thickness
0.98 in / 25.0 mmDogbone Breaking Force
809312.0 lb / 3600.0 kNTop Plate Thickness
50 mm (1.96 in)Bottom Plate Thickness
1.18 in / 30.0 mmBottom Plate Thickness
1.18 in / 30.0 mmDogbone Breaking Force
1011640.0 lb / 4500.0 kNTop Plate Thickness
30 plus 25 mm (1.18 plus 0.98 in)Bottom Plate Thickness
1.18 in / 30.0 mmBottom Plate Thickness
1.18 in / 30.0 mmDogbone Breaking Force
1011640.0 lb / 4500.0 kNTop Plate Thickness
30 + 25 mm (1.18 + 0.98 in)Bottom Plate Thickness
1.18 in / 30.0 mmBottom Plate Thickness
1.18 in / 30.0 mmDogbone Breaking Force
1011640.0 lb / 4500.0 kNCST Drive Systems
Model
Maximum Output Torque for a Short Duration (3 sec.)
Maximum Input Speed (motor speed)
Weight (without oil) - In-line Drive System
Maximum Output Torque for a Short Duration (3 sec.)
848196.0 ft-lb / 1150000.0 N·mWeight (without oil) - In-line Drive System
36165.0 lb / 16400.0 kgMaximum Output Torque for a Short Duration (3 sec.)
221269.0 ft-lb / 300000.0 N·mWeight (without oil) - In-line Drive System
8600.0 lb / 3900.0 kgMaximum Output Torque for a Short Duration (3 sec.)
331858.0 ft-lb / 450000.0 N·mWeight (without oil) - In-line Drive System
13007.0 lb / 5900.0 kgMaximum Output Torque for a Short Duration (3 sec.)
331858.0 ft-lb / 450000.0 N·mWeight (without oil) - In-line Drive System
15873.0 lb / 7200.0 kgMaximum Output Torque for a Short Duration (3 sec.)
331858.0 ft-lb / 450000.0 N·mWeight (without oil) - In-line Drive System
13000.0 lb / 5900.0 kgMaximum Output Torque for a Short Duration (3 sec.)
479415.0 ft-lb / 650000.0 N·mWeight (without oil) - In-line Drive System
16094.0 lb / 7300.0 kgMining Controls
Model
Operating System
Processor
RAM Memory
Operating System
Windows 7Processor
Intel Core i7, 2.1 GHzRAM Memory
4 GBOperating System
µITRON RTOSProcessor
32Bit RISC Microcontroller TX1940CYAF, 32MHz, internal RAM 10Kbytes, ROM 256KbytesRAM Memory
4Mbytes CMOS Static RAM, 4Mbytes FlashOperating System
µITRON RTOSProcessor
16Bit Microcontroller TMP91CW12AF, 27MHz, internal RAM 4Kbytes, ROM 125KbytesRAM Memory
2Mbytes CMOS Static RAM, 4Mbytes FlashOperating System
µITRON RTOSProcessor
32Bit RISC Microcontroller TX1940CYAF, 32MHz, internal RAM 10Kbytes, ROM 256KbytesRAM Memory
4Mbytes CMOS Static RAM, 4Mbytes FlashPlows
Model
Coal Hardness
Maximum Installed Power
Maximum Cutting Depth
Coal Hardness
Medium to extremely hard coalMaximum Installed Power
2 × 800 kW (2 × 1,080 hp)Maximum Installed Power
2 × 800 kW (2 × 1,080 hp)Maximum Cutting Depth
8.27 in / 210.0 mmMaximum Cutting Depth
8.27 in / 210.0 mmCoal Hardness
Soft - hard coalMaximum Installed Power
2 × 400 kW (2 × 540 hp)Maximum Cutting Depth
7.0 in / 180.0 mmCoal Hardness
Soft-hard CoalCoal Hardness
Soft-hard coalMaximum Installed Power
2 × 400 kW (2 × 536 hp)Maximum Installed Power
2 × 400 kW (2 × 536 hp)Maximum Cutting Depth
0.67 ft / 205 mmMaximum Cutting Depth
0.67 ft / 205 mmCoal Hardness
Soft - hard coalMaximum Installed Power
2 × 400 kW (2 × 536 hp)Maximum Cutting Depth
7.48 in / 190.0 mmMaximum Cutting Depth
0.62 ft / 190.0 mmRoof Support Carriers
Model
Carry Capacity
Vehicle Length
Vehicle Width
Carry Capacity
22.0 tons / 20.0 tonnesVehicle Length
31.17 ft / 9.5 mVehicle Width
9.35 ft / 2.85 mCarry Capacity
36.0 tons / 33.0 tonnesVehicle Length
35.7 ft / 10.88 mVehicle Width
9.51 ft / 2.9 mCarry Capacity
44.0 tons / 40.0 tonnesVehicle Length
30.18 ft / 9.2 mVehicle Width
8.69 ft / 2.65 mCarry Capacity
50.0 tons / 45.0 tonnesVehicle Length
38.58 ft / 11.76 mVehicle Width
9.94 ft / 3.03 mCarry Capacity
60.0 tons / 55.0 tonnesVehicle Length
33.04 ft / 10.07 mVehicle Width
10.17 ft / 3.1 mCarry Capacity
66.0 tons / 60.0 tonnesVehicle Length
33.04 ft / 10.07 mVehicle Width
10.17 ft / 3.1 mCarry Capacity
88.0 tons / 80.0 tonnesVehicle Length
45.28 ft / 13.8 mVehicle Width
12.96 ft / 3.95 mRoof Supports
Model
Height (Extended)
Shield Centers
Shield Density
Height (Extended)
1100-6100 mm (43.3-240.2 in)Shield Centers
1500-2050 mm (59-80.7 in)Shield Density
up to 111 tonne/m2 (12.5 ton/ft2)Shearers
Model
Typical Machine Length
Installed Power
Haulage System
Typical Machine Length
45.1 ft / 13.75 mInstalled Power
2548 hp / 1900 kWInstalled Power
Up to 1780 kW (Up to 2,387 hp)Installed Power
Up to 1780 kW (Up to 2,387 hp)Haulage System
ACHaulage System
AC inverter driveHaulage System
AC inverter driveTypical Machine Length
49.9 ft / 15.20 mInstalled Power
3078 hp / 2295 kWHaulage System
ACVariable Frequency Drives
Model
Rated Power
Input Voltage
Maximum Operational Torque