Engine: Caterpillar 3066TA diesel engine
Net power: 138 hp (103 kW)
Operating weight: 45,750 lb (20,750 kg)
Bucket capacity range: 0.72-1.57 cubic yards (0.55-1.20 cubic meters)
Max digging depth: 21.2 ft (6.45 m)
Max reach along ground: 31.4 ft (9.58 m)
Caterpillar 320D Excavator:
Engine: Caterpillar C6.4 ACERT diesel engine
Net power: 148 hp (110 kW)
Operating weight: 52,910 lb (24,005 kg)
Bucket capacity range: 0.81-2.0 cubic yards (0.62-1.53 cubic meters)
Max digging depth: 21.9 ft (6.67 m)
Max reach along ground: 32.2 ft (9.81 m)
Note that these specifications can vary depending on the specific model year and configuration of the excavator. Additionally, there may be different options and attachments available for these machines that can affect their specifications.