The Caterpillar CAT 320D is a reliable 20-ton-class hydraulic crawler excavator designed for excavation, earthmoving, road construction, mining, quarrying, infrastructure projects and general material handling applications.
Known for its durability, powerful digging performance and stable operation, the CAT 320D combines a robust structure, efficient hydraulic system and reliable crawler undercarriage to deliver consistent productivity in various working environments.
Equipped with a Caterpillar diesel engine featuring a mechanical direct injection system, the CAT 320D provides strong power output, stable torque performance and excellent reliability. The simple mechanical injection design offers easier maintenance, lower service requirements and strong adaptability to challenging working conditions.
Key Specifications & Component Layout
- Brand & Model: Caterpillar CAT 320D
- Machine Category: Hydraulic Crawler Excavator
- Operating Weight: Approx. 20 Tons
- Engine Type: Caterpillar Diesel Engine with Mechanical Direct Injection System
- Rated Power: Approx. 103–110 kW (depending on production year and configuration)
- Bucket Capacity: Approx. 0.9–1.0 m³
- Drive System: Hydraulic Crawler Travel System
- Undercarriage: Heavy-Duty Crawler Structure for Improved Stability and Durability
- Boom & Arm: Reinforced Heavy-Duty Boom and Arm Assembly
- Hydraulic System: High-Efficiency Hydraulic System for Smooth Operation
- Cabin: Enclosed Operator Cab with Comfortable Controls and Good Visibility
- Attachments: Compatible with Buckets, Hydraulic Breakers, Grapples, Rippers and Other Attachments.
Operational Features & Advantages
Reliable Mechanical Direct Injection Engine
The CAT 320D is equipped with a reliable Caterpillar diesel engine featuring a mechanical direct injection system. Compared with complex electronic systems, the mechanical injection structure offers excellent durability, easy troubleshooting and convenient maintenance, making it highly suitable for areas requiring reliable and practical equipment.
Strong Digging Performance
The combination of powerful engine output, efficient hydraulic performance and durable working equipment provides strong digging force and breakout capability. The CAT 320D performs effectively in excavation, trenching, loading and earthmoving operations.
Efficient Hydraulic System
The advanced hydraulic system ensures smooth and responsive control of the boom, arm and bucket. Optimized hydraulic power distribution helps improve working efficiency while maintaining stable performance during continuous operation.
Durable Crawler Undercarriage
The heavy-duty crawler undercarriage provides excellent traction and stability on uneven, muddy and challenging terrain. Its robust design supports long-term operation in construction sites, mines and earthmoving projects.
Strong & Durable Working Equipment
The reinforced boom, arm and bucket structure are designed for demanding working conditions. Durable components provide reliable digging performance when handling soil, gravel, rock and other construction materials.
Balanced 20-Ton Class Performance
With its practical 20-ton-class configuration, the CAT 320D achieves an excellent balance between digging force, lifting capability, working range and transportation convenience, making it a popular choice for contractors worldwide.
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