| Reliable, Powerful, and Efficient
The Cat 320D is one of Caterpillar’s most popular 20-ton class excavators, known worldwide for its durability, strong performance, and low operating costs. It’s designed to deliver maximum productivity in earthmoving, construction, quarrying, and general excavation applications.
Key Features
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Proven Cat Engine Power:
Powered by the reliable Cat C6.4 ACERT™ engine, delivering around 103 kW (138 hp) of net power, ensuring high efficiency and low emissions. -
Advanced Hydraulic System:
The load-sensing hydraulic system provides smooth, precise control and excellent digging performance while saving fuel. -
Outstanding Productivity:
High digging forces and fast cycle times make the 320D ideal for heavy digging and truck loading operations. -
Comfortable Operator Station:
Spacious, pressurized cab with excellent visibility, adjustable seat, and ergonomic controls help reduce operator fatigue during long working hours. -
Durable Construction:
Reinforced boom, stick, and undercarriage components ensure long life, even under harsh job site conditions. -
Easy Maintenance:
Ground-level access to service points and extended maintenance intervals reduce downtime and increase uptime.
Main Specifications
| Item | Specification |
|---|---|
| Operating Weight | 21,000 – 22,000 kg |
| Engine Model | Cat C6.4 ACERT™ |
| Net Power | 103 kW (138 hp) @ 2,000 rpm |
| Bucket Capacity | 0.8 – 1.2 m³ |
| Maximum Digging Depth | 6,670 mm |
| Maximum Reach (Ground Level) | 9,850 mm |
| Maximum Digging Height | 9,760 mm |
| Bucket Digging Force | 149 kN |
| Arm Digging Force | 111 kN |
| Swing Speed | 11 rpm |
| Travel Speed | 3.5 – 5.5 km/h |
| Fuel Tank Capacity | 410 L |
| Hydraulic Oil Capacity | 200 L |
| Overall Dimensions (L×W×H) | 9,540 × 2,800 × 3,050 mm |










