Here are some general specifications for the Caterpillar 305 and 305CR excavators:
Engine: Caterpillar 3034 diesel engine
Gross power: 41 kW (55 hp) at 2,200 rpm
Operating weight: 5,580 kg (12,296 lb) for the 305 and 5,890 kg (12,962 lb) for the 305CR
Bucket capacity range: 0.1-0.31 m³ (0.13-0.41 yd³)
Maximum digging depth: 3,580 mm (11 ft 9 in) for the 305 and 3,700 mm (12 ft 2 in) for the 305CR
Maximum reach at ground level: 5,850 mm (19 ft 2 in) for the 305 and 6,090 mm (20 ft 0 in) for the 305CR
Maximum travel speed: 5.5 km/h (3.4 mph)