Used Caterpillar 320DLExcavator

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📌 OVERVIEW

The Caterpillar 320DL (DL = Digging Long) is a mid-size hydraulic excavator in Cat's 20-ton class. It is specifically designed with a long undercarriage for superior stability during heavy digging operations. It sits between the smaller 315/318 models and the larger 320/325 models in Cat's lineup.

Feature	Specification
Class	20-ton (Medium)
Manufacturer	Caterpillar Inc.
Production Years	~2006–Present (updated to 320DLN/GC)
Primary Use	General construction, excavation, road building, demolition, utility work

🔧 ENGINE SPECIFICATIONS

Parameter	C4.4 ACERT (Older)	C6.6 ACERT (Newer)
Engine Type	4-cylinder, turbocharged, aftercooled	6-cylinder, turbocharged, aftercooled
Displacement	4.4 L	6.6 L
Gross Power	118 kW (158 hp) @ 2,200 rpm	129 kW (173 hp) @ 2,200 rpm
Net Power	108 kW (145 hp)	123 kW (165 hp)
Emissions	Tier 4 Final / Stage V	Tier 4 Final / Stage V
Fuel Tank	~400 L (106 gal)	~400 L (106 gal)

✅ The engine meets Tier 4 Final / EU Stage V emissions using SCR (Selective Catalytic Reduction) with DEF (Diesel Exhaust Fluid) — no DPF required.

⚖️ OPERATING WEIGHT & DIMENSIONS

Parameter	Specification
Operating Weight	20,500 – 21,000 kg (45,200 – 46,300 lb)
Transport Length	9,920 mm (32.5 ft)
Transport Width	2,990 mm (9.8 ft)
Transport Height	3,120 mm (10.2 ft)
Ground Clearance	460 mm (18.1 in)
Track Width	600 mm (24 in) shoes
Track Gauge	2,490 mm (8.2 ft)
Undercarriage Length (Long)	~3,600 mm (vs ~3,200 mm standard)

🔑 The "L" (Long) undercarriage provides ~10-15% more stability than the standard 320D, making it ideal for deep digging and heavy lift work.

🪣 BUCKET & WORK TOOL SPECIFICATIONS

Bucket Type	Capacity	Width
General Purpose (GP)	0.6 – 0.84 m³ (0.8 – 1.1 yd³)	800–900 mm
Heavy Duty (HD)	0.84 – 1.0 m³ (1.1 – 1.3 yd³)	900–1,000 mm
Digging (Narrow)	0.3 – 0.5 m³ (0.4 – 0.65 yd³)	450–600 mm
Thumb Ready	Yes ✅	—
Hydraulic Quick Coupler	Optional ✅	—

📊 PERFORMANCE (DIGGING & REACH)

Parameter	Specification
Max Digging Depth	6,650 mm (21.8 ft)
Max Reach (Ground Level)	10,010 mm (32.8 ft)
Max Digging Height	9,750 mm (32.0 ft)
Max Dump Height	6,930 mm (22.7 ft)
Max Vertical Wall Dig	5,930 mm (19.5 ft)
Breakout Force	~130 kN (29,200 lbf)
Teeth Force	~100 kN (22,500 lbf)
Swing Speed	10.5 rpm
Swing Torque	~67 kNm
Travel Speed	5.5 km/h (3.4 mph)
Gradeability	70% (35°)
Max Drawbar Pull	~140 kN (31,500 lbf)

🏗️ HYDRAULIC SYSTEM

Parameter	Specification
System Type	Load-Sensing Hydraulic (LS)
Max System Pressure	350 bar (5,076 psi)
Pump Flow	2 × 108 L/min (28.5 gpm) or 2 × 130 L/min
Auxiliary Flow	70 L/min (18.5 gpm)
Auxiliary Pressure	350 bar
Circuit	Open Center / Closed Center (selectable)

🛡️ KEY FEATURES & TECHNOLOGY

Feature	Description
🖥️ Cat Product Link™	Remote machine monitoring, diagnostics, fleet management
📐 Cat GRADE with 2D/3D	GPS-guided grading technology (optional)
🪑 Comfortable Cab	ROPS/FOPS certified, air-suspension seat, climate control, 7" LCD monitor
🔇 Noise Level	~72 dB(A) — one of the quietest in class
🔋 Eco Mode	Auto-adjusts engine speed to save fuel (up to 15% fuel savings)
🔧 Long Service Intervals	Engine oil: 1,000 hrs / Hydraulic oil: 4,000 hrs
🧹 Easy Maintenance	Ground-level access to filters, drains, and check points
🚨 Rearview Camera	Standard on newer models
❄️ Cold Start	-25°C (-13°F) cold start capability

🆚 COMPARISON: 320D vs 320DL vs 320DLN

Feature	320D (Standard)	320DL (Long)	320DLN (Next Gen)
Undercarriage	Standard	Long (+400mm)	Long
Stability	Good	Excellent	Excellent
Weight	~19,500 kg	~20,500 kg	~21,000 kg
Dig Depth	6,450 mm	6,650 mm	6,700 mm
Engine	C4.4 / C6.6	C4.4 / C6.6	C6.6 (updated)
Technology	Basic	+ Product Link	+ Vision Link, Grade Control

💰 APPROXIMATE PRICING (2024)

Condition	Price Range (USD)
New (320DL)	$180,000 – $220,000
New (320DLN)	$210,000 – $260,000
Used (5,000–8,000 hrs)	$85,000 – $140,000
Used (8,000–12,000 hrs)	$65,000 – $100,000

(Prices vary by region, configuration, and market conditions)

✅ ADVANTAGES

✔️ Pros
✅ Excellent digging depth & reach for 20-ton class
✅ Long undercarriage = superior stability
✅ Fuel-efficient Eco mode
✅ Low maintenance costs
✅ Strong resale value (Cat brand)
✅ Versatile — works with buckets, thumbs, breakers, grapples, augers
✅ Operator comfort is top-tier

⚠️ LIMITATIONS

❌ Cons
❌ Heavier than standard 320D (transport costs higher)
❌ Not suitable for very tight spaces (longer tail swing)
❌ Higher purchase price than competitors (Komatsu PC200, Volvo EC200)
❌ DEF fluid required (additional operating cost)

🎯 IDEAL APPLICATIONS

Application	Suitability
🏗️ General Excavation	⭐⭐⭐⭐⭐
🛣️ Road Construction	⭐⭐⭐⭐⭐
🏚️ Demolition	⭐⭐⭐⭐
🕳️ Utility / Trenching	⭐⭐⭐⭐⭐
🪨 Quarrying	⭐⭐⭐⭐
🌲 Land Clearing	⭐⭐⭐⭐
🏗️ Foundation Work	⭐⭐⭐⭐⭐
❄️ Cold Climate Work	⭐⭐⭐⭐⭐

🏁 SUMMARY

The Cat 320DL is one of the most popular mid-size excavators in the world, prized for its balance of power, stability, and efficiency. The "Long" undercarriage makes it the go-to choice for contractors who need deep digging capability with maximum stability in the 20-ton class. With Cat's legendary durability, dealer network, and technology, it remains a top choice for rental companies, contractors, and fleet owners globally.

Would you like me to compare it with competitors (Komatsu PC200, Volvo EC200, Hitachi ZX200) or go deeper into any specific area? 🚜