CAT 320D Excavator (2010-2016)
The CAT 320D is a highly versatile and reliable 20-ton class hydraulic excavator, renowned for its fuel efficiency, robust performance, and operator comfort in demanding South African conditions.
Overview
The CAT 320D excavator series, produced between approximately 2010 and 2016, established itself as a workhorse in the South African earthmoving sector. Known for its powerful C6.4 ACERT engine, the 320D delivers excellent digging forces and lift capacity while maintaining impressive fuel efficiency. Its hydraulic system is designed for precision and speed, making it suitable for a wide range of applications from general construction to more specialised tasks like trenching and material handling. Operators appreciate the comfortable cab, intuitive controls, and good visibility, contributing to higher productivity on site. The 320D's robust construction ensures durability and reliability, critical for the challenging environments found across South Africa.
- Proven reliability and durability from Caterpillar.
- Optimised for fuel efficiency with the ACERT engine.
- Versatile for various applications with strong hydraulic performance.
- Operator-friendly cab design for enhanced productivity.
Key specs
- Operating Weight
- 20,500 - 22,000 kg (est.)
- Engine Model
- Cat C6.4 ACERT
- Gross Power
- 110 kW (148 hp)
- Bucket Capacity Range
- 0.8 - 1.2 m³ (est.)
- Max Digging Depth
- 6.7 m (est.)
- Max Reach at Ground Level
- 9.8 m (est.)
- Swing Speed
- 11.5 rpm (est.)
- Travel Speed (Max)
- 5.5 km/h (est.)
Specifications may vary based on specific configuration, region, and year of manufacture. Always consult the machine's data plate.
Applications
- General Construction
- Road Building
- Trenching and Excavation
- Demolition (light to medium)
- Material Handling
- Land Clearing
- Mining Support
Features
- Cat C6.4 ACERT Engine for power and fuel efficiency
- Advanced Hydraulic System for precise control
- Robust Undercarriage for stability and durability
- Comfortable and spacious operator cab
- Automatic climate control
- Low-effort joystick controls
- High-visibility design
- Heavy-duty boom and stick options
- Integrated diagnostic system
Operating requirements
- Competent and certified excavator operator
- Daily pre-operation checks and fluid level monitoring
- Appropriate personal protective equipment (PPE)
- Clear and safe working area free from overhead and underground obstructions
- Regular refuelling with clean diesel
- Adherence to load limits and stability guidelines
Attachments and options
Common attachments
- General Purpose Buckets
- Heavy Duty Buckets
- Rock Buckets
- Hydraulic Breakers (Hammers)
- Grapples
- Shears
- Compactors
- Quick Couplers
- Rippers
Options
- Various track shoe widths
- Different boom and stick configurations
- Auxiliary hydraulic lines for attachments
- Cab guards and falling object protective structures (FOPS)
- Specialised lighting packages
- Cold weather starting aids
- Product Link™ telematics system
Maintenance and inspections
- Daily greasing of pivot points
- Regular engine oil and filter changes (every 250-500 hours)
- Hydraulic oil and filter changes (as per manufacturer schedule)
- Fuel filter replacement
- Coolant level and quality checks
- Undercarriage inspection for wear
- Track tension adjustment
- Air filter cleaning/replacement
- Battery checks and maintenance
Adherence to Caterpillar's recommended maintenance schedule is crucial for optimal performance and longevity. Use genuine Cat parts and fluids.
Safety notes
- ROPS/FOPS certified cab
- Emergency stop button
- Seat belt interlock system
- Backup alarm
- Mirrors for enhanced visibility
- Anti-skid plates on walking surfaces
- Hydraulic lockout lever
- Fire extinguisher (recommended)
Buying checklist
- Verify service history and maintenance records.
- Inspect the engine for leaks, smoke, and unusual noises.
- Check hydraulic system for leaks, cylinder condition, and smooth operation.
- Examine the undercarriage for excessive wear on tracks, rollers, and sprockets.
- Test all functions: boom, stick, bucket, swing, and travel.
- Assess cab condition, controls, and electronics.
- Confirm all safety features are functional.
- Obtain a professional inspection if possible.
- Check for any outstanding recalls or technical bulletins.
FAQ
What is the typical fuel consumption of a CAT 320D?
Fuel consumption for a CAT 320D can vary significantly based on application, operator technique, and load, but typically ranges from 15 to 25 litres per hour under normal operating conditions. (est.)
Is the CAT 320D suitable for heavy rock excavation?
While capable, for continuous heavy rock excavation, a larger class excavator or one specifically configured with a heavy-duty rock bucket and breaker might be more efficient and durable in the long run. The 320D can handle moderate rock work with the right attachments.
What is the average lifespan of a CAT 320D excavator?
With proper maintenance and regular servicing, a CAT 320D can achieve 10,000 to 15,000 operating hours or more before major overhauls are typically required. Some units exceed 20,000 hours. (est.)
