CAT 7495 with Rope Crowd Mining Excavator

Dimensions

Overall Width 43.0 ft in (13.11 m)
Height of A-frame 46.0 ft in (14.0 m)
Height of Boom Point Sheaves 68.6 ft in (20.87 m)
Overall Length 113.3 ft in (34.54 m)
Length of Boom 67 ft in (20.4 m)
Effective Length of Dipper Handle 35.1 ft in (10.9 m)
Overall Length of Dipper Handle 47.0 ft in (14.3 m)

CAT 7495 Dimensions and Weight

Weights

These weights will vary slightly depending upon dipper and optional equipment selection. All specifications are based on a 73 yd3 (56 m3) dipper and standard 79 in (2007 mm) treads

Max. Operating Weight 3066000 lb (1390714 kg)
Operating Weight (with dipper and standard links) 3047670 lb (1382400 kg)
Net Weight (domestic, without ballast or dipper) 2202820 lb (999182 kg)
Ballast (furnished by customer) 667150 lb (302614 kg)
GP Dipper Weight (73 yd3 / 56 m3) 177700 lb (80603 kg)

Working Ranges

Optimal working ranges based on loading a Cat 797F truck.

Dipper Payload 220000 lb (110000 kg)
Dipper Capacity 40 – 80 yd3 (30.6 – 61.2 m3)
Maximum Dumping Height 28.9 ft in (8.9 m)
Maximum Cutting Height 53.5 ft in (16.4 m)
Maximum Cutting Radius 80 ft in (24.4 m)
Radius Of Level Floor 56.1 ft in (17.1 m)
Revolving Frame Tail Swing Radius 30.5 ft in (9.3 m)

CAT 7495 with Rope Crowd Mining Excavator Specs

Front End Boom

Boom Type Welded, impact-resistant steel boom
Boom Point Sheaves Twin-grooved, flame-hardened
Point Sheave Diameters 96 in (2438.4 mm)
Handle Diameter 34 in (863.6 mm)
Wall Thickness (nominal) 3 in (76.2 mm)

Front End Rope Data

Diameter Construction
Hoist (2 x twin dual) 2.75 in (69.8 mm) 8 × 37
Boom Suspension (4 x equalized) 3.25 in (82.6 mm) struct. strand
Dipper Trip (1 x single) 0.75 in (19.1 mm) 7 × 25

Front End Crowd

Rope Crowd Type Rope Crowd, the crowd machinery is located at the front center of the revolving frame, consisting of motor, brake, drum and gearing. Plastic-coated crowd and retract ropes are used to move the dipper handle fore and aft.
Hydraulic Cylinder Bore Diameter 14 in (356 mm)
Hydraulic Cylinder Rod Diameter 10 in (254 mm)

Lube System

Lube System Type Automatic, single-line system for open gear lubricant and grease. External FastFil from lower level
Lube System Pumps 6 pumps (4 for open gear lubricant +2 for grease) located in an insulated, heated, double-walled lube room

Electrical Power Requirements

Other voltage options available to suit customer requirements. Distribution System Requirements (machine on separate system) – 4000 kVA.

Voltage 3 phase, 50/60 Hz, 7,200 V
Nominal System Voltage 50/60 Hz, 7,200V
Power Requirements (50 Hz) 6,000 V, 6,600 V, 7,200 V, 11,000 V
Power Requirements (60 Hz) 7,200 V, 13,800 V
Average Power Demand 945-1322 kW
Peak Power 3737 kW
Drive IGBT Acutrol drive system
Trail Cable (furnished by customer) SHD-3-#1/0 at 8,000 V
Transformer, Auxiliary 350 kVA, 7,200V primary
Lighting transformer 25 kVA, 120/240V secondary

CAT 7495 Specifications

Main Structures

Planetary Propel Dual-motor independent drive
Crawler Mounting Overall Length 37.6 ft in (11.43 m)
Crawler Mounting Overall Width (79″) Treads, Standard 36 ft in (11.0 m)
Crawler Mounting Overall Width (102″) Treads 44.3 ft in (13.5 m)
Total Effective Bearing Area (79″) Treads / Ground Pressure 386.6 ft2 / 54.2 psi (36.1 m2 / 374 kPa)
Total Effective Bearing Area (102″) Treads / Ground Pressure 501.7 ft2 / 50.0 psi (46.6 m2 / 289 kPa)
Number and Diameter of Lower Rollers 16 x 30.7 in (78 cm)
Number and Diameter of Lower Rear Rollers 2 x 42 in (106.7 cm)
Take-up Tumblers Diameter 63.8 in (162 cm)
Number and Pitch of Treads 94 x 20 in (50.8 cm)

CAT 7495 Swing – Two planetary gearboxes, each driven by a vertically mounted motor, are located on either side of the revolving frame. Dual-output pinion shafts from each gearbox engage the swing rack. CAT 7495 Hoist – A planetary gearbox with dual-output pinions provides the hoist torque transfer from the electric motor to the hoist drum gear.

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