Exterior: Large articulated frame (for better maneuverability), powerful diesel engine, oversized tires or tracks, a large front bucket (often with teeth), lift arms, counterweight at the rear, and a protected operator cab on top. Common brands include Caterpillar, Volvo, Komatsu, Hyundai. Typical specs: engine power 100–500+ hp, bucket capacity 1–10+ cubic yards, operating weight 10,000–200,000+ lbs depending on size. 
• Interior (Cabin): Ergonomic operator station with joystick controls for bucket/lift, steering wheel or joystick steering, climate control, large windows for 360° visibility, digital displays for machine status, air suspension seat, and safety features like ROPS (Roll-Over Protective Structure). Low noise levels and good visibility are emphasized in modern models