Used Caterpillar 320DExcavator

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📌 1. OVERVIEW

Item	Details
Manufacturer	Caterpillar Inc. (USA)
Series	D-Series Next Generation (D2)
Class	Mid-size / 20-tonne class hydraulic excavator
Production	~2006 – Present
Predecessor	CAT 320C / 320DL
Successor trend	Evolved into CAT 320 GC (next gen)
Global Reputation	One of the best-selling excavators worldwide 🌎

The CAT 320D is a workhorse of the construction industry — reliable, productive, fuel-efficient, and versatile. It sits in the 19–21 tonne operating weight range and is used across construction, road building, mining, demolition, landscaping, and utility work.

🔧 2. ENGINE SPECIFICATIONS

Specification	Details
Engine Model	Cat C4.2 ACERT®
Type	4-cylinder, turbocharged, aftercooled diesel
Displacement	4.2 Liters (256 cu in)
Rated Power	129 kW (173 hp) @ 2,000 rpm
Peak Torque	665 Nm (490 lb-ft) @ 1,400 rpm
Emissions	EPA Tier 4 Final / EU Stage IV / China Non-road Stage IV
Fuel Tank	~400 L (106 gal)
DEF Tank	~20 L (SCR system)

✅ The ACERT® technology combines Aftercooling, Exhaust Gas Recirculation (EGR), and Selective Catalytic Reduction (SCR/DEF) for clean emissions without sacrificing performance.

⚖️ 3. OPERATING WEIGHT & DIMENSIONS

Specification	Value
Operating Weight	19,900 – 21,300 kg (43,900 – 47,000 lbs) (varies by config)
Transport Length	~9,470 mm (31 ft 1 in)
Transport Width	~2,990 mm (9 ft 10 in)
Transport Height	~3,000 mm (9 ft 10 in)
Ground Clearance	~450 mm (17.7 in)
Tail Swing Radius	~2,740 mm (9 ft)

🪣 4. HYDRAULIC SYSTEM & PERFORMANCE

Specification	Details
Max Hydraulic Flow	2 × 295 L/min (78 GPM)
System Pressure	350 bar (5,076 psi)
Swing Speed	11 rpm
Swing Torque	~75 kNm
Travel Speed	5.0 km/h (3.1 mph)
Gradeability	70% (35°)
Max Dig Depth	~6,530 mm (21 ft 5 in)
Max Reach (Ground Level)	~9,760 mm (32 ft 0 in)
Max Dump Height	~7,030 mm (23 ft 1 in)
Max Dig Force	~135 kN (30,350 lbf)
Max Breakout Force	~123 kN (27,650 lbf)

🔩 5. BUCKET CAPACITIES

| Bucket Type | Capacity (m³) | Capacity (yd³) ||-------------|--------------|----------------|| Standard | 0.8 – 0.96 m³ | 1.0 – 1.25 yd³ || Heavy Duty | 1.0 – 1.1 m³ | 1.3 – 1.4 yd³ || Grading / Tilt | 0.9 – 1.1 m³ | 1.2 – 1.4 yd³ || Thumb Ready | Yes ✅ |

🎛️ 6. UNDERCARRIAGE OPTIONS

Option	Width
Standard	2,990 mm (9 ft 10 in)
Wide	3,200 mm (10 ft 6 in)
Shoe Options	Single grouser / Triple grouser / Extreme duty

💻 7. TECHNOLOGY & SMART FEATURES 🧠

Feature	Description
🖥️ Next-Gen Monitor	Large LCD display with intuitive touchscreen interface
📡 Product Link™ Telematics	Remote machine monitoring, diagnostics, fleet management
🔄 Auto-Idle / Auto-Swing	Reduces fuel consumption during idle & swing
🚗 Auto Two-Speed Travel	Automatic gear shifting for fuel efficiency
💪 Power Modes	Power / Eco / Smart — operator can select performance level
🎯 Grade with Assist	Helps operator achieve grade accuracy
🔧 Cat ET (Electronic Technician)	Full diagnostic capability
📶 Cat Payload (Optional)	Real-time payload weighing system
🧭 Grade Control Ready	Compatible with GPS/laser grade systems

🛋️ 8. OPERATOR COMFORT (CAB)

Feature	Details
ROPS/FOPS	Certified Rollover & Falling Object Protection ✅
Climate Control	Auto A/C with heater
Seat	Air-suspension, heated, adjustable
Noise Level	~73 dB(A) — one of the quietest in class
Visibility	Excellent all-around visibility with large glass
Controls	Pilot-operated joysticks with adjustable settings
USB / Bluetooth	Audio connectivity available
Camera System	Rearview & side-view camera options

📊 9. FUEL EFFICIENCY

Metric	Value
Fuel Consumption	~15–22 L/hr (varies by application)
Eco Mode Savings	Up to 15% fuel savings vs. full power mode
Auto-Idle Savings	Up to 10% fuel savings

🏆 The 320D is recognized as one of the most fuel-efficient excavators in its class.

🏗️ 10. APPLICATIONS

Application	Suitability
✅ General Excavation	Excellent
✅ Road Construction	Excellent
✅ Pipeline / Utility	Excellent
✅ Mining (Small-Medium)	Very Good
✅ Demolition	Very Good (with hydraulic breaker)
✅ Landscaping	Very Good
✅ Foundation Work	Excellent
✅ Material Handling	Good (with grapple/magnet)

🔄 11. ATTACHMENT COMPATIBILITY

Attachment	Compatible?
🔨 Hydraulic Breaker	✅ Yes
🪓 Hydraulic Thumb	✅ Yes
🧲 Magnetic Grapple	✅ Yes
🪓 Orange Peel Grapple	✅ Yes
🔩 Hydraulic Shear	✅ Yes
🔄 Quick Coupler	✅ Yes
🪣 Tiltrotator	✅ Yes
🧹 Brush Cutter	✅ Yes
🔩 Pile Driver	✅ Yes (with carrier)

📈 12. KEY COMPETITORS

Competitor	Model	Operating Weight
🇯🇵 Komatsu	PC200-11	~20,000 kg
🇯🇵 Hitachi	ZX200-6	~20,000 kg
🇰🇷 Doosan	DX225LC-5	~22,500 kg
🇰🇷 Hyundai	R220LC-9S	~21,800 kg
🇸🇪 Volvo	EC200E	~20,000 kg
🇨🇳 SANY	SY215C	~21,500 kg

The CAT 320D competes fiercely with all of these, but Caterpillar's dealer network, parts availability, and resale value give it a strong edge globally. 💪

💰 13. APPROXIMATE PRICING (2024)

Configuration	Price Range (USD)
New Machine	$180,000 – $260,000
Used (2015–2020)	$80,000 – $150,000
Used (2006–2010)	$45,000 – $80,000

Prices vary by region, condition, hours, and configuration.

⭐ 14. SUMMARY — WHY THE 320D IS A LEGEND

✅ Strength	Description
🏆 Reliability	Proven over 15+ years of production
⛽ Fuel Efficiency	Class-leading with Eco/Smart modes
🔧 Low Maintenance	Long service intervals (500/2000 hr)
💰 Resale Value	Highest in class — holds value exceptionally well
🌐 Dealer Network	Largest heavy equipment dealer network in the world
📦 Parts Availability	Easy to source parts globally
🧠 Technology	Telematics, auto-idle, grade assist
🔇 Low Noise	One of the quietest cabs in its class

🎯 Bottom Line:
The Caterpillar 320D is arguably the most popular mid-size excavator ever made. It delivers the perfect balance of power, efficiency, comfort, and durability — making it the go-to choice for contractors worldwide. Whether you're digging trenches, breaking rock, or loading trucks, the 320D gets the job done right, every time. 🚜🔥

Would you like me to go deeper into any specific area — like hydraulic circuit, maintenance schedule, or comparison with a specific competitor? 😊