Caterpillar 320C:
Operating weight: 20,500 kg
Engine power: 103 kW
Max digging depth: 8,020 mm
Bucket capacity: 1.0 - 1.3 m³
Caterpillar 320D:
Operating weight: 21,900 kg
Engine power: 103 kW
Max digging depth: 8,220 mm
Bucket capacity: 1.0 - 1.5 m³
Caterpillar 321C:
Operating weight: 22,700 kg
Engine power: 106 kW
Max digging depth: 8,490 mm
Bucket capacity: 1.0 - 1.6 m³