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7495 with HydraCrowd
Brand: Caterpillar CorporateElectric rope shovels have been successfully removing overburden and ore on mine sites around the world for more than a century.
Driven by a vision to make these highly productive machines safer, more reliable and even more productive, we challenged the status quo and built an electric rope shovel that's better.
FeaturesTRIED AND TRUE AC IGBT ELECTRIC DRIVE SYSTEM
You will experience greater machine uptime, lower operating costs, and faster cycle times via our AC electric rope shovel designs that leverage institutional knowledge built on 30 years of experience commissioning more than 200 AC equipped machines worldwide.
A SIMPLER SYSTEM
A streamlined AC system design that runs smoother, has fewer parts, and is easier to maintain, are the benefits you will realize, and the result of three decades of continuous improvement.
- A single, centralized control rack reduces parts requirements, eliminates communication issues between racks, and simplifies maintenance
- A single, compact drive cabinet houses the controller and drives to simplify assembly, troubleshooting, and maintenance
- Fuses, circuit breakers, and line filters have been eliminated reducing potential points of failure and overall parts requirements
- Parallel inverters have been removed to prevent uneven loading and to reduce the number of inverters required by the system
- The IGBT modules have been designed to be interchangeable between inverters and Active Front Ends (AFEs) and between motions and machines
A SAFER SYSTEM
Your safety remains our highest priority, and is evident in our AC system design.
- The high voltage DC bus is located in the back of the drive cabinet and is never exposed during maintenance or troubleshooting
- The centralized control rack keeps maintenance personnel away from high voltage components when troubleshooting the controller
- Shielding blocks induced currents eliminates the need for high frequency bonding
A ROBUST SYSTEM
Helping to ensure your rope shovel remains in service, our AC system is designed to perform in the toughest mining conditions.
- The robust, welded drive cabinet was designed to withstand severe and consistent vibration
- An isolated, positive-pressure room houses the drive/controller cabinet to protect it from dust and debris
- Mine-grade components are used to ensure system performance and long, trouble-free life
Specifications
Brand
Dipper Payload
- 120 t
Dipper Capacity
- 30.6-62.7 m³ (40-82 yd3)
Dipper Payload (Available Dipper Payloads Up to 109 Tonnes (120 tons) when Specified)
- 120 t
Working Weight - with Dipper and Standard Links
- 3066000 lb
Ballast - Furnished By Customer
- 667150 lb
Crawler Dimensions - Overall Width 259.1 cm (102 in) Treads
- 38 ft
Crawler Dimensions - Overall Width 200.7 cm (79 in) Treads, Standard
- 36 ft
Hoist
- A planetary gearbox with dual-output pinions provides the hoist torque transfer from the electric motor to the hoist drum gear.
Ground Bearing Pressure - Note
- Ground bearing pressure is dependent upon many factors
Upper Works Overall Width - Including Standard Walkways
- 41.9 ft
Ground Bearing Pressure - Total Effective Bearing Area (259.1 cm/102 in) Treads
- 46.6 m2 (298 kPa), 501.7 ft2 (43 psi)
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.
Planetary Propel
- Dual-motor independent drive
Ground Bearing Pressure - Total Effective Bearing Area (200.7 cm/79 in) Treads - Standard
- 36 m2 (382 kPa), 386 ft2 (55 psi)
Lube System Type
- Automatic, single-line system for open gear lubricant and grease
Lube System Components (1)
- Six pumps (four for open gear lubricant and two for grease) located in an insulated, heated, double-walled lube room
Lube System Components (2)
- External FastFil from lower level
Power Requirements - Note
- Other voltage options available to suit customer requirements
Drive
- IGBT Acutrol drive system
Power Requirements - 50 Hz
- 6,000 V, 6,600 V, 7,200 V, 11,000 V
Power Requirements - Average Power Demand
- 945-1322 kW
Power Requirements - Voltage
- 3-Phase, 50/60 Hz, 7,200 V
Power Requirements - 60 Hz
- 7,200 V, 13,800 V
System Voltage - Nominal
- 50/60 Hz, 7,200 V
Power Requirements - Peak Power
- 3778 kW
Rope Data - Boom Suspension - No.
- 4
Rope Data - Boom Suspension - Diameter
- 3.25 in
Front End Type
- One piece, forged, seamless tubular dipper handle and wide-spread boom point sheaves equipped with hoist ropes and dipper padlocks to stabilize dipper handle.
Rope Data - Note
- High impact ropes available as an option
Rope Data - Dipper Trip - No.
- 1
Rope Data - Hoist - No.
- 2
Rope Data - Hoist - Diameter
- 2.75 in
Rope Data - Dipper Trip - Diameter
- 0.75 in
Front End Crowd (1)
- HydraCrowd, hydraulic power skid, located at the front center of the revolving frame deck, powers a large hydraulic cylinder to move the dipper handle fore and aft.
Front End Crowd (2)
- (Optional) Rope Crowd, the crowd machinery is located at the front center of the revolving frame, consisting of motor, brake, drum and gearing. Plastic-impregnated crowd and retract ropes are used to move the dipper handle fore and aft.
Dipper Capacities Working Ranges
- 30.6-62.7 m³ (40-82 yd3)
Maximum Dumping Height Working Ranges
- 28.9 ft
Dipper Payload Working Ranges
- 120 ton (US)
Operating Weight Working Ranges
- 3066000 lb
Cutting Radius - Maximum
- 80 ft
Revolving Frame Tail Swing Radius
- 30.5 ft
Cutting Height - Maximum
- 53.5 ft
Radius of Level Floor
- 56.1 ft
Dumping Height - with Clearance to Open Dipper Door
- 28.9 ft