Used Caterpillar 320D2Excavator

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📋 OVERVIEW

The Caterpillar 320D2 is a medium-class hydraulic excavator (20-ton class) manufactured by Caterpillar Inc. It was introduced as a successor to the popular 320D model, featuring improved fuel efficiency, enhanced operator comfort, advanced technology, and reduced emissions (meeting Tier 4 Final / EU Stage V standards). It is one of the best-selling excavators worldwide, widely used in construction, mining, demolition, and general earthmoving.

Parameter	Specification
Manufacturer	Caterpillar Inc.
Model	320D2 (D2 = "Dig Deep" 2nd generation)
Class	20-ton (Medium) Excavator
Production	2015 – Present
Engine	Cat C4.4 ACERT™ (or C7.1 in some markets)
Net Power	130 hp (97 kW) @ 2,000 rpm
Operating Weight	~20,000 – 21,000 kg (44,090 – 46,300 lbs)
Bucket Capacity	0.75 – 1.0 m³ (1.0 – 1.3 cu yd)
Emission Standard	Tier 4 Final / EU Stage V

& 1. ENGINE & POWERTRAIN

Feature	Detail
Engine Model	Cat C4.4 ACERT™ 4-cylinder Turbo Diesel
Displacement	4.4 Liters
Power Output	130 hp (97 kW)
Torque	~520 Nm (384 lb-ft) @ 1,400 rpm
Emissions	Tier 4 Final (US) / Stage V (EU) via SCR + DPF (Selective Catalytic Reduction + Diesel Particulate Filter)
Fuel Tank	~400 Liters (106 US gal)
Cooling System	Pressurized, with auto-reversing fan
Air Filtration	Dual-stage with pre-cleaner (desert-friendly option available)

🔑 The ACERT™ technology combines Air Management, Combustion, Emission Reduction, and Turbocharging for optimal fuel efficiency and clean emissions.

🔧 2. HYDRAULIC SYSTEM

Feature	Detail
Main Pump Type	Variable Displacement Axial Piston Pump
System Pressure	348 bar (5,047 psi)
Total Flow	~2 × 230 L/min (60.8 US gpm)
Swing System	Closed-center load-sensing
Travel Motors	Variable displacement axial piston with brakes
Hydraulic Oil Capacity	~190 Liters (50 US gal)

The hydraulic system is designed for smooth, precise operation with load-sensing technology that matches flow and pressure to demand — saving fuel.

📐 3. DIMENSIONS & WEIGHT

Specification	Metric	Imperial
Operating Weight	20,000 – 21,000 kg	44,090 – 46,300 lbs
Transport Length	9,520 mm	31 ft 3 in
Transport Width	2,990 mm	9 ft 10 in
Transport Height	2,990 mm	9 ft 10 in
Ground Clearance	445 mm	17.5 in
Track Width	600 mm (standard)	23.6 in
Track Shoe Width	600 mm	23.6 in
Tail Swing Radius	2,870 mm	9 ft 5 in

🏗️ 4. PERFORMANCE (DIGGING SPECIFICATIONS)

Specification	Value
Max Digging Depth	6,570 mm (21 ft 7 in)
Max Reach (Ground Level)	9,770 mm (32 ft 1 in)
Max Vertical Wall Digging	5,910 mm (19 ft 5 in)
Max Dumping Height	7,160 mm (23 ft 6 in)
Max Digging Radius	9,430 mm (30 ft 11 in)
Drawbar Pull	135 kN (30,347 lbf)
Swing Speed	11.5 rpm
Travel Speed	5.4 km/h (3.4 mph)
Gradeability	70% (35°)
Bucket Breakout Force	116 kN (26,078 lbf)
Arm Crowd Force	85 kN (19,108 lbf)

🎮 5. OPERATOR ENVIRONMENT (CAB)

The 320D2 features a spacious, pressurized, and air-conditioned cab with significant upgrades:

Feature	Detail
Cab Type	ROPS/FOPS certified, pressurized
Seat	Fully adjustable air-suspension seat with heating
Climate Control	Auto-climate air conditioning
Display	7" (178 mm) color LCD touchscreen monitor
Controls	Electronic joystick controls with auto-return
Sound Level	72 dB(A) (reduced by ~5 dB vs. 320D)
Vibration	Significantly reduced via isolation mounts
Visibility	Large windows, rear-view camera standard
Lighting	LED work lights (front, rear, sides)
USB/Bluetooth	Available for connectivity

🖥️ 6. TECHNOLOGY & SMART FEATURES

The 320D2 is packed with Cat Connect Technology:

Technology	Function
Cat Product Link™	Remote machine monitoring, diagnostics, location tracking
Cat Grade with 2D	Built-in 2D grading system (saves on survey costs)
Cat Payload	Real-time bucket payload weighing (±1% accuracy)
Cat Vision Link	Rear-view camera system (standard)
Cat Detect	Object detection radar system (optional)
E-Fence	Geofencing to prevent unauthorized use
Flashing Beacon	Standard for site safety
Automatic Engine Idle Shutdown	Saves fuel during idle
Auto Engine Speed Control	Matches engine RPM to hydraulic demand

🔩 7. UNDERCARRIAGE & ATTACHMENTS

Feature	Detail
Undercarriage	Heavy-duty X-frame with triple grouser shoes (standard)
Track Type	600 mm triple grouser OR 450 mm triple grouser (narrow option)
Boom Options	Standard boom OR Long Reach (LR) boom
Stick Options	Standard OR Long Reach stick
Quick Coupler	Available (hydraulic or mechanical)
Attachment Options	Thumb, hydraulic breaker, grapple, ripper, compactor, shears, auger, etc.
Pin-on Coupler	Standard on most models

📊 8. FUEL EFFICIENCY

Metric	Value
Fuel Consumption	~15 – 18 L/hr (4 – 4.8 US gal/hr) depending on application
Improvement vs. 320D	Up to 15% better fuel efficiency
Eco Mode	Available — reduces power when full performance isn't needed
Auto Idle Shutdown	Engine shuts off after preset idle time (4–10 min)

💰 This translates to significant cost savings over the machine's lifetime.

🏭 9. APPLICATIONS

The 320D2 is extremely versatile and used in:

Industry	Applications
🏗️ Construction	Excavation, trenching, foundation work, road building
& Mining & Quarrying	Loading trucks, bench working, material handling
🏚️ Demolition	Building tear-down, concrete breaking (with hydraulic breaker)
🚿 Utilities	Pipe laying, cable trenching
🌊 Dredging	Dredging canals, riverbeds (with long reach)
🌳 Landscaping	Grading, digging, tree planting
🗑️ Waste & Recycling	Material handling, sorting

✅ 10. KEY ADVANTAGES (WHY CHOOSE 320D2?)

Advantage	Detail
✅ Fuel Efficient	Up to 15% less fuel than 320D
✅ Low Emissions	Tier 4 Final / Stage V compliant
✅ Operator Comfort	Best-in-class cab with low noise & vibration
✅ Smart Technology	Cat Connect, Grade, Payload ready
✅ Reliable	Proven Cat C4.4 engine, 50,000+ hour life potential
✅ Versatile	Wide range of attachments & configurations
✅ Easy Maintenance	Extended service intervals, ground-level access points
✅ High Resale Value	Strong global demand = excellent residual value
✅ Dealer Network	Worldwide Cat dealer support (24/7 in many regions)

🔄 11. 320D vs. 320D2 — Quick Comparison

Feature	320D (Old)	320D2 (New)
Engine	C4.4 ACERT	C4.4 ACERT (improved)
Power	130 hp	130 hp (same)
Fuel Efficiency	Baseline	+15% better
Cab Noise	Higher	~5 dB quieter
Emissions	Tier 4 Interim	Tier 4 Final / Stage V
Technology	Basic	Cat Connect, Payload, Grade ready
Display	Basic LCD	7" Touchscreen
Weight	~20,100 kg	~20,000 kg (slightly lighter)
Service Intervals	Standard	Extended (up to 1,000 hrs)

💵 12. APPROXIMATE PRICING (2024)

Configuration	Approximate Price (USD)
Base Model (ROPS)	$130,000 – $145,000
Cab Model (AC, Radio)	$145,000 – $160,000
Long Reach Configuration	$170,000 – $185,000
With Cat Grade/Payload	$180,000 – $200,000+

(Prices vary by region, dealer, options, and market conditions)

🏁 SUMMARY

The Caterpillar 320D2 is a benchmark medium excavator that combines:

🛢️ Excellent fuel economy
🌍 Clean emissions compliance
👨‍✈️ Superior operator comfort
📡 Cutting-edge smart technology
💪 Reliable Cat powertrain
🔧 Low total cost of ownership

It is the go-to machine for contractors worldwide who need a reliable, efficient, and technologically advanced 20-ton excavator for general construction, mining, and earthmoving operations.