I forgot to add, holds 280 tons of rock

R280 AC Specifications
Engine
• Cummins QSK60-L or Detroit Diesel 16V4000
• 2013 kW (2700 hp)
Electric drive system
• Siemens motors and advanced ac control system
• Wheel motors
• 3430 kW (4600 hp) continuous driving (minimum)/trolley applications
• 4474 kW (6000 hp) continuous electrical retarding (to stop)
• High-speed/high-efficiency design with 3450-rpm top motor speed
Final drive system
• Euclid design
• 35.816:1 standard or 40.789:1 optional gear ratio (all Fairfield components)
• Top speed with Michelin 50/80R57 tires: 62 km/h (39 mph) standard; 54 km/h (34 mph) optional
• Loaded gradability: 30% standard; 35% optional
• Maximum tractive effort: (295,000 lb) standard; (336,000 lb) optional
Tires
• Michelin 50/80R57
• Rim diameter 57 in
• Outside diameter 3.6 m (12 ft)
Brakes
• Front Three-head dry disc (per wheel)
• Rear Multiple-plate, oil-cooled wet disc
• Park Two-head (per assembly) dry-disc spring apply (hydraulic release)

Mass
• Empty 147,100 kg (396,200 lb)
• Loaded 435,500 kg (960,000 lb)

I wonder how they bust those tires

It's a giant when it makes you look like an ant...