Date post: | 04-Aug-2015 |
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797 Mining Truck Introduction
Critical Success Factors to 300+ Ton TrucksCritical Success Factors to 300+ Ton Trucks
Shovel sizing EngineHaul Roads
•Length•Construction•Maintenance
Tires•Capabilities•Life & cost
Repair & maintenance cost
Why 360 Ton Nominal?Why 360 Ton Nominal?
0.0%
0.5%
1.0%
1.5%
2.0%
2.5%
3.0%
3.5%
4.0%
4.5%
55 60 65 70 75 80 85 90 95 100 105 110 115
Bucket Payload (tons/pass)
Pe
rce
nt
of
Pa
ss
es
Scaled weights900 passes10 faces/5 minesCoal, Copper, Oil Sand
84.9 tons/pass avg.9.6 tons std. dev.
797 Mining Truck797 Mining Truck1,230,000 lb GMW360 lb/Gross HP = 793C3400 Gross HP = 3524B360 Nominal Payload29% Stall Grade40 mph Top Speed3700 HP Continuous RetardingDimensions
30’ Wide24’ High48’ Long
Steering Diameter - 105’
797 vs. 793 Profile797 vs. 793 Profile
797 vs. 793 Front797 vs. 793 Front
793 vs. 797793 vs. 797
797 Cast Frame797 Cast Frame
797 4-Bar Linkage797 4-Bar Linkage
797 Banjo/4-Bar Linkage797 Banjo/4-Bar Linkage
797 Engine Specification797 Engine Specification
• 3524B Engine
– 2x 3512B Blocks(s) Coupled Front to Back
– Long Stroke (20mm)
– 1750Rpm Rated Engine Speed
– Parallel Turbos (4)
– BMEP (rated psi) 216
– BSFC (g/kw-hr) 204
3524B Engine3524B Engine
797 Electronic System797 Electronic System
Future Future Future
Powertrain SpecificationsPowertrain Specifications
• Drive Train– New Torque Converter (More Efficient)
– New Transmission (7 spd - 27” Clutch-ECPC)
– New Differential (Rear Mt.-Dry Sump-Carrier)
– New Wheel Station (Gears-Bearings-Service)
– New Brakes (All Hydraulic - Improved Retarding)– Rims (Better Serviceability - Outer Tire)
797 Torque Converter797 Torque Converter
797 Transmission797 Transmission
797 Differential797 Differential
797 Braking System797 Braking System
• Oil Cooled (880 gal/min)
• All Hydraulic Controls
• Larger & Thicker Discs
• Larger & Thicker Plates
• Cooling is Electronically Controlled
Operator’s StationOperator’s Station
• Two Full Seats
• 14” Wider
• Electric Windows
• Tilt/Telescoping
• New VIMS
• Quieter
• More Storage
797 Body797 Body
Cat 797 Mining Truck Objective:Cat 797 Mining Truck Objective:
• Improve Haulage Cost Per Ton
• Longer Component Life
• Purpose Built Components
• Durable
• Clean Sheet Design