7295 Electric Rope Shovel

Dimensions

Dipper payload: 50 tons
Dipper capacity: 19.1-38.2 m3 (25-50 yd3)
Length of boom: 59.0 ft
Overall length of dipper handle: 41.5 ft
Note: Dependent on application and material density.

Weights

Working weight, with dipper and standard links: 1748837 lb
General purpose dipper – 25.2 m3 (33 yd3): 110000.0 lb
Ballast (furnished by customer): 352000 lb
Note: These weights will vary slightly depending upon dipper and optional equipment selection.
Note: All specifications are based on a 19 m3 (25 yd3) dipper and standard 182.9 cm (72 in) treads.

Main Structures

Crawler Mounting – Total effective bearing area (139.7 cm/55 in treads): 20.81 m2 (224 ft2); 371.6 kPa (53.9 psi)
Crawler Mounting – Total effective bearing area (182.88 cm/72 in treads): 27.2 m2 (293 ft2); 284.1 kPa (41.2 psi)
Hoist: Hoist machinery consists of a motor coupled to two gear reductions, which drive the 137 cm (54 in) hoist drum.
Planetary Propel: Dual-motor independent drive.
Revolving Frame – Welded, impact-resistant steel: Length: 22.7 ft
Revolving Frame – Welded, impact-resistant steel: Width: 10.5 ft
Swing: Two parallel shaft units mounted to either side of the revolving frame. Each unit is driven by a vertically mounted motor.
Turntable – Cast alloy steel swing rack pitch diameter: 14.34 ft
Turntable – Number of tapered rollers: 54
Turntable – Tapered rollers diameter: 7.38 in
Turntable – Tapered, forged alloy steel roller rails diameter: 12.86 ft
Turntable – Teeth external cut (face): 8.0 in
Upper works overall width (including standard walkways): 41.33 ft
Crawler Dimensions – Overall width 182.9 cm (72 in) treads, standard: 28.22 ft
Ground Bearing Pressure – Total effective bearing area: 315.6 ft2
Ground Bearing Pressure – 182.9 cm (72 in) treads: 39 psi
Ground Bearing Pressure: Ground bearing pressure is dependent upon many factors.
Planetary Propel: Dual-motor independent drive.
Swing: Parallel shaft gear cases, driven by a vertically mounted motor, are located on either side of the revolving frame.
Hoist: A motor coupled to two gear reductions drives a 137 cm (54 in) hoist drum.

Optimal Working Ranges

Dumping height: 30.25 ft
Dumping height at maximum electric crowd limit: 23.0 ft
Dumping radius (maximum): 61.32 ft
Height of A-frame: 39.17 ft
Operator’s eye level: 26.9 ft
Overall width: 40.65 ft
Radius of level floor: 51.12 ft

Optimal Working Ranges*

Dumping height – with clearance to open dipper door: 27.56 ft
Cutting height (maximum): 45.00 ft
Cutting radius (maximum): 67.59 ft
Radius of level floor: 48.88 ft
Revolving frame tail swing radius: 25.59 ft
Note: Optimal working ranges based on loading a Cat® 785D truck.
Note: *All specifications are based on a 19 m3 (25 yd3) dipper and standard 182.9 cm (72 in) treads.

Lube System

Components: 6 pumps (4 for open gear lubricant and 2 for grease) located in an insulated, heated, double-walled lube room.
Type: Automatic, single-line system for open gear lubricant and grease.
Components: External fast fill from lower level.

Electrical

Power Requirements – Average 15-minute demand: 538-753 kW
Power Requirements – Peak power: 2152 kW
Power Requirements – Voltage: 3 phase, 50/60 Hz, 7,200V (Other voltages available to suit customer requirements.)
Drive: IGBT Acutrol drive system.
Power Requirements – Voltage: 3 phase, 50/60 Hz, 7,200V
Power Requirements – 50 Hz: 6,000V, 6,600V, 7,200V
Power Requirements – 60 Hz: 4,160V, 7,200V
Power Requirements – Average power demand: 538-753 kW (721-1,010 hp)
Power Requirements – Peak power: 2886 hp
Note: Other voltages available to suit customer requirements.

Front End

Rope Data – Dipper trip – Construction: 7 x 25
Rope Data – Dipper trip – Diameter: 0.63 in
Rope Data – Dipper trip – No.: 1
Rope Data – Dipper trip – Type: single
Rope Data – Hoist – Construction: 6 x 41
Rope Data – Hoist – Diameter: 2.25 in
Rope Data – Hoist – No.: 2
Rope Data – Hoist – Type: twin dual
Rope Data – Retract – Construction: 8 x 37
Rope Data – Retract – Diameter: 2.38 in
Rope Data – Retract – No.: 1
Rope Data – Retract – Type: single dual
Components: One piece, forged, seamless tubular dipper handle and wide-spread boom point sheaves equipped with hoist ropes and dipper padlocks to stabilize dipper handle.
Standard Rope Data: Hoist – No.: 2
Standard Rope Data: Hoist – Diameter: 2.375 in
Standard Rope Data: Crowd – No.: 1
Standard Rope Data: Crowd – Diameter: 2.25 in
Standard Rope Data: Retract – No.: 1
Standard Rope Data: Retract – Diameter: 2.25 in
Standard Rope Data: Boom susp. – No.: 4
Standard Rope Data: Boom susp. – Diameter: 2.75 in
Standard Rope Data: Dipper trip – No.: 1
Standard Rope Data: Dipper trip – Diameter: 0.625 in
Note: High impact ropes available as an option
Crowd: Rope Crowd: the crowd machinery is located at the front center of the revolving frame; consisting of a motor, brake, drum and gearing. Plastic-impregnated crowd and retract ropes are used to move the dipper handle fore and aft.

Lights

Types: Incandescent lights on ground lights, walkways and operator’s cab.
Types: HPS lights on boom feet, top of A-frame, machinery house, lube room, control room, utility room and flood lights.

Crowd

Components: Rope Crowd with crowd machinery located at front center of the revolving frame; consisting of a motor, brake, drum and gearing.
Components: Plastic-coated crowd and retract ropes are used to move the dipper handle fore and aft.