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Cat Rock Straight System Rock Straight System

Cat Rock Straight System Rock Straight System

Operating Weight:
45200kg
Rated power:
60.0 r/min
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Product Feature

Product Parameter

Overview

The Cat® Rock Straight System is a fully mechanized longwall system adopted to hard rock conditions for continuous mining of low seam hard rock deposits. The Rock Straight System combines the use of a hard rock shearer (Hard Rock Miner HRM220), a hard rock chain conveyor (Hard Rock Conveyor HRC30) and hydraulic roof support (Hard Rock Roof Support HRS1220). It features the unique adaptation of Caterpillar “Activated Undercutting Technology” and has been specifically designed for the extraction of bedded hard rock deposits (e.g. platinum, copper, gold). The Rock Straight System provides economical cutting in the mining of thin seams and narrow veins, especially when selective mining of ore is required.

Conveyor System

Units:

Conveyor Capacity - Approximate176.0 tonnes/hr | 160.0 tonnes/hr
Note100 m (328 ft) conveyor length/varies with rock density. | 100 m (328 ft) conveyor length/varies with rock density.

Dimensions (Approximate) - HRC30 Hard Rock Conveyor

Apron Plate Chain Diameter30 mm × 108 mm (1.18 in × 4.25 in) | 30 mm × 108 mm (1.18 in × 4.25 in)
Apron Plate Spacing4 × 108 mm (4 × 4.25 in) | 4 × 108 mm (4 × 4.25 in)
Capacity per Hour176.0 t | 160.0 t
Chain Length - Up To328.0 ft | 100.0 m
Chain Speed2.3 ft/min | 0.7 m/s
Line Pan Height11.02 in | 280.0 mm
Line Pan Length102.95 in | 2615.0 mm
Line Pan Width69.13 in | 1756.0 mm

Dimensions (Approximate) - HRM220 Hard Rock Miner

Body Height47.2 in | 1200.0 mm
Cutting Depth - Up To3.9 in | 100.0 mm
Cutting Drum Speed60.0 r/min | 60.0 r/min
Cutting Head Diameter50.0 in | 1270.0 mm
Cutting Units2 | 2
Installed Power Electrical System427.6 HP | 319.0 kW
Installed Power Hydraulic System73.7 HP | 55.0 kW
Installed Power per Cutting Unit177.0 HP | 132.0 kW
Machine Weight - Approximate45.2 t | 41.0 t
Operating Voltage1,000 V; 50 Hz; 3 AC | 1,000 V; 50 Hz; 3 AC
Seam Range1.3-2.0 m (4.2-6.6 ft) | 1.3-2.0 m (4.2-6.6 ft)
Typical Machine Length22.3 ft | 6.8 m

Dimensions (Approximate) - HRS1220 Hard Rock Roof Support

Base Width51.18 in | 1300.0 mm
Bearing Surface Base38.061 ft² | 35360.0 cm²
Canopy Extension Length59.05 in | 1500.0 mm
Canopy Width62.99 in | 1600.0 mm
DA (Double Acting) Ram Stroke24.6 in | 625.0 mm
Distance Roof Support Centers69.29 in | 1760.0 mm
Height - Closed41.73 in | 1060.0 mm
Height - Extended84.64 in | 2150.0 mm
Leg Centers Distance - Vertical to Face1440/1660 mm (56.69 in/65.35 in) | 1440/1660 mm (56.69 in/65.35 in)
Main Canopy Length166.93 in | 4240.0 mm
Support Resistance (at Height 1600 mm/62.99 in) - Load at the End of Swivel Canopy14.5 psi | 100.0 kN
Support Resistance (at Height 1600 mm/62.99 in) - Setting Load at 320 bar (4,641 psi)320.38 psi | 2209.0 kN
Support Resistance (at Height 1600 mm/62.99 in) - Yield Load at 415 bar (6,019 psi)376.95 psi | 2599.0 kN
Swivel Canopy Length59.05 in | 1500.0 mm
Weight10.25 t | 9.3 t

Hard Rock Conveyor HRC30

Conveyor System Length - Approximate328.0 ft | 100.0 m

Hard Rock Miner HRM220

Miner - Typical Machine Length22.3 ft | 6.8 m

Hard Rock Roof Support HRS1220

Roof Support - Height Extended84.64 in | 2150.0 mm

Miner Machine Weight

Weight - Total45.2 t | 41.0 t

Power

Miner Haulage Speed0-6 m/min (0-19.7 ft/min) | 0-6 m/min (0-19.7 ft/min)
Total Installed Power - Approximate938.0 HP | 700.0 kW

Roof Support System

NoteAt height of 1600 mm (62.99 in) and setting load at 320 bar (4,641 psi). | At height of 1600 mm (62.99 in) and setting load at 320 bar (4,641 psi).
Support Resistance320.38 psi | 2209.0 kN

Seam Height

Minimum to Maximum Cut1.3 to 2.0 m (4.2 to 6.6 ft) | 1.3 to 2.0 m (4.2 to 6.6 ft)

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