Used Caterpillar 320D2Excavator

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🏢 1. OVERVIEW

Item	Detail
Manufacturer	Caterpillar Inc. (USA)
Series	D2 Generation (D2 GC)
Class	Medium-sized Hydraulic Excavator (20–22 ton class)
Production Period	~2014 – Present
Successor To	CAT 320D / 320DL
Primary Market	Construction, Mining, Demolition, Infrastructure

The CAT 320D2 is one of the best-selling mid-size excavators in the world, known for its versatility, fuel efficiency, reliability, and low operating costs. It sits between the smaller 315/318 and larger 323/325 models in Cat's lineup.

⚙️ 2. ENGINE SPECIFICATIONS

Specification	Detail
Engine Model	Cat® C7.1 ACERT®
Engine Type	6-cylinder, in-line, turbocharged, aftercooled diesel
Displacement	7.1 L (433 cu in)
Emission Standard	Tier 4 Final (EPA) / Stage IV (EU) — using SCR (Selective Catalytic Reduction) + DOC + DPF
Net Power (ISO 9249)	~110 kW (147 hp) @ 2,000 rpm
Gross Power (ISO 14396)	~129 kW (173 hp)
Fuel Tank Capacity	~400 L (106 US gal)
AdBlue/DEF Tank	~20 L (5.3 US gal)

✅ The C7.1 ACERT engine is renowned for its fuel efficiency (up to 15% better than previous D-series) and lower emissions without sacrificing performance.

📐 3. DIMENSIONS & WEIGHT

Specification	Detail
Operating Weight	~20,700 – 21,500 kg (45,635 – 47,400 lb) (varies by configuration)
Transport Length	~9,620 mm (31 ft 7 in)
Transport Width	~2,990 mm (9 ft 10 in)
Transport Height	~3,140 mm (10 ft 4 in)
Ground Clearance	~460 mm (18 in)
Track Gauge	2,490 mm (8 ft 2 in)
Track Length on Ground	~3,200 mm (10 ft 6 in)
Tail Swing Radius	~2,860 mm (9 ft 5 in)

🔧 4. HYDRAULIC SYSTEM

Specification	Detail
Pump Type	Variable displacement piston pump (2 pumps)
System Pressure	34.5 MPa (5,000 psi)
Hydraulic Flow	~2 × 230 L/min (total ~460 L/min)
Swing Speed	~9.5 rpm
Swing Torque	~85 kN·m
Travel Speed	~4.8 km/h (3.0 mph)

🪣 5. DIGGING PERFORMANCE

Specification	Detail
Max Digging Depth	~6,540 – 6,800 mm (21 ft 5 in – 22 ft 4 in)
Max Digging Reach	~9,700 – 9,900 mm (31 ft 10 in – 32 ft 6 in)
Max Dumping Height	~7,000 mm (23 ft)
Max Digging Force (Boom/Stick)	~118 kN (26,500 lbf)
Bucket Capacity (SAE)	0.6 – 1.1 m³ (0.8 – 1.4 cu yd) (varies by boom/stick/bucket combo)
Teeth Force	~140 kN (31,500 lbf)

📋 Common Boom/Stick/Bucket Combinations:

Config	Boom (mm)	Stick (mm)	Bucket (m³)
Long Reach	5,650	2,950	0.60
Standard	5,650	2,450	0.84
Heavy Duty	5,650	2,450	1.00
Long Stick	5,650	2,950	0.78
Short Reach	5,000	2,450	1.10

🛋️ 6. CAB & OPERATOR COMFORT

The 320D2 GC features a spacious, pressurized, and sound-insulated cab:

Feature	Detail
ROPS/FOPS	Certified (Rollover & Falling Object Protection)
Air Conditioning	Fully automatic climate control
Suspension Seat	Air-suspended, heated, with armrests
Display	8" (203 mm) color LCD touchscreen monitor
Controls	Electronic joystick controls (optional), or lever controls
Camera System	Rearview & side-view cameras (optional)
Noise Level	~73 dB(A) (very quiet for its class)
Lighting	LED work lights (front, rear, cab)
USB/Bluetooth	Available for connectivity

💻 7. TECHNOLOGY & SMART FEATURES

Technology	Description
Cat Product Link™	Real-time machine monitoring, location tracking, fleet management, diagnostics
Cat GRADE with 2D	Optional GPS-guided grading system (single-boom slope control)
Cat Payload	Optional bucket-weighing system (accuracy ±1–2%)
Cat VisionLink®	Cloud-based fleet management platform
E-Fence / Geofence	Operational boundary alerts
Auto Engine Idle Shutdown	Saves fuel when idle
Auto Swing Assist	Reduces swing movement for precision work
Secure Flash (USB)	Software update capability
Engine Derating	Configurable for different fuel qualities

🔄 8. MAINTENANCE & SERVICEABILITY

Feature	Detail
Service Intervals	Engine oil: 500 hrs / 1,000 hrs (ECO mode)
Fuel Filter	500 hrs
Hydraulic Oil Filter	1,000 hrs
Track Tension	Adjustable from ground level
Ground Level Access	Most daily checks accessible from ground
Cat S·O·S Sampling	On-site oil analysis ports
Longer Intervals	Up to 1,000-hour service intervals reduce downtime

💰 9. OPERATING COST ADVANTAGES

Advantage	Detail
🛢️ Fuel Efficiency	Up to 15% less fuel than 320D
🔧 Low Maintenance	Extended service intervals
⏱️ High Uptime	>90% availability typical
📉 Low Cost/Hour	One of the lowest in its class (~$45–$65/hr depending on region)
♻️ Resale Value	Excellent — CAT machines hold value very well

🏗️ 10. APPLICATIONS

Application	Details
✅ General Excavation	Trenching, foundation, utility work
✅ Road Construction	Grading, paving, drainage
✅ Demolition	With hydraulic breaker/crusher
✅ Mining	Loading trucks, bench work
✅ Landscaping	Grading, ditch digging
✅ Pipeline Work	Trenching, pipe laying
✅ Material Handling	With grapple, magnet, or thumb

📊 11. COMPARISON WITH COMPETITORS

Model	Weight	Power	Bucket	Key Advantage
CAT 320D2 GC	~21,000 kg	147 hp	0.6–1.1 m³	⭐ Fuel efficiency & tech
Komatsu PC200-11	~20,500 kg	134 hp	0.5–1.0 m³	Good hydraulics
Hitachi ZX200-6	~20,700 kg	136 hp	0.5–1.0 m³	Comfort & precision
Volvo EC200E	~20,800 kg	145 hp	0.6–1.0 m³	Safety features
Doosan DX225LC-5	~22,000 kg	150 hp	0.6–1.1 m³	Value for money

🏆 12. SUMMARY — WHY THE 320D2?

✅ Strength	📋 Detail
🔧 Reliability	Proven C7.1 engine — millions of hours in the field
&Fuel Saving**	Best-in-class fuel efficiency (~15% over D-series)
🧠 Smart Tech	Product Link, Grade, Payload ready
🪑 Comfort	One of the best cabs in the 20-ton class
💵 Low TCO	Lowest total cost of ownership in segment
🔄 Resale	Exceptional residual value
🌍 Dealer Network	Largest global dealer/parts network

🎯 Bottom Line:
The CAT 320D2 GC is the gold standard in the 20-ton excavator class — offering the perfect balance of power, efficiency, technology, comfort, and low operating cost. It's the machine most contractors reach for when they need a versatile, dependable workhorse that makes money every hour it runs. 🚜💪

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