Used Caterpillar 320DLExcavator

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📌 1. OVERVIEW

The Cat 320DL (DL = Dig Long) is a mid-size hydraulic excavator from Caterpillar's L-Series lineup. It sits between the smaller 315/318 models and the larger 323/325 models. It is one of the most popular and versatile excavators in the 20-ton class, widely used in construction, mining, road building, and utility work.

Parameter	Specification
Series	Cat L-Series (DL — Dig Long)
Operating Weight	~20,700 – 21,500 kg (45,600 – 47,400 lbs)
Engine	Cat C7.1 ACERT®
Power Output	~130–134 hp (97–100 kW) @ 2,000 rpm
Bucket Capacity	0.75 – 1.0 m³ (1.0 – 1.3 yd³)
Max Dig Depth	~6.5 – 6.7 m (21.3 – 22.0 ft)
Max Reach	~9.7 – 9.9 m (31.8 – 32.5 ft)

🔧 2. ENGINE — Cat C7.1 ACERT®

Feature	Detail
Type	6-cylinder, in-line diesel, turbocharged & air-to-air aftercooled
Displacement	7.1 liters
Emissions	EPA Tier 4 Final / EU Stage V (using DPF + SCR)
Fuel System	Common rail direct injection
Fuel Tank	~400 L (106 gal)
Cooling System	Pressurized, with remote-mounted radiator

✅ The engine is designed for fuel efficiency, durability, and low emissions without the need for DEF in some configurations.

💧 3. HYDRAULIC SYSTEM

Feature	Specification
Pump Type	Variable displacement piston pumps (2 main pumps)
Total Flow	~275 – 283 L/min (73 – 75 gpm)
Operating Pressure	345 bar (5,000 psi)
Auxiliary Flow	~45 – 50 L/min (for attachments like breakers, thumbs)
Swing Motor	Axial piston, with swing boost function
Travel Motors	Axial piston with park brake

🔄 Work Modes:

Mode	Description
Power Mode	Full hydraulic flow — max performance for heavy digging
Eco Mode	Reduced RPM & flow — saves up to 15% fuel
Lifting Mode	Extra flow for lifting heavy loads at reach

📏 4. DIMENSIONS & WEIGHT

Parameter	Measurement
Transport Length	~9.6 m (31.5 ft)
Transport Width	~2.8 m (9.2 ft)
Transport Height	~3.1 m (10.2 ft)
Track Width	600 mm (24 in) — adjustable to 450/500/600 mm
Ground Clearance	~450 mm (17.7 in)
Tail Swing Radius	~2.7 m (8.9 ft)
Blade Width	3.2 m (10.5 ft)

🏗️ 5. DIGGING PERFORMANCE

Measurement	Value
Max Digging Depth	6,550 – 6,700 mm (21.5 – 22.0 ft)
Max Reach (Ground Level)	9,700 – 9,900 mm (31.8 – 32.5 ft)
Max Digging Height	9,500 – 9,700 mm (31.2 – 31.8 ft)
Max Dump Height	6,800 – 7,000 mm (22.3 – 23.0 ft)
Max Dig Force (Boom)	~120 kN (27,000 lbf)
Max Dig Force (Arm)	~82 kN (18,400 lbf)
Bucket Breakout Force	~95 kN (21,400 lbf)

🖥️ 6. CAB & OPERATOR ENVIRONMENT

Feature	Detail
Certification	ROPS/FOPS (Rollover & Falling Object Protection)
Seat	Air-suspended, heated, with armrests
Climate Control	Auto A/C with 4-vent system
Display	8" (203 mm) color touchscreen monitor
Controls	Joystick with auxiliary switch buttons
Visibility	Large front/side/rear windows, wiper & washer
Noise Level	~72 dB(A) inside cab
Lighting	LED work lights (front, rear, boom)

🤖 7. TECHNOLOGY & SMART FEATURES

Technology	Description
Cat Product Link™	Remote machine monitoring, diagnostics, location tracking
Cat GRADE with 2D	Optional GPS-ready grade control for precision digging
VisionLink®	Fleet management & telematics
Payload System	Optional onboard weighing (±1-2% accuracy)
Anti-Two-Block Valve	Prevents boom from hitting arm at full raise
Boom/Stick Regeneration	Recovers energy during lowering — saves fuel
Auto Idle	Engine auto-reduces RPM when not working
Swing Boost	Increases swing speed when load is light
Security	Cat coded immobilizer / PIN code start

🔩 8. UNDERCARRIAGE

Feature	Detail
Type	Steel track with grouser bars
Width Options	450 / 500 / 600 mm (18 / 20 / 24 in)
Rollers	5 per side (top + bottom)
Shoes	48 shoes (24 per side)
X-Frame	Heavy-duty, reinforced for durability

🛠️ 9. COMMON ATTACHMENTS

Attachment	Use Case
🪣 General Purpose Bucket	Digging, loading, trenching
🪨 Rock Bucket	Hard rock, quarry work
🔨 Hydraulic Breaker (Hammer)	Demolition, concrete breaking
🤏 Thumb (Grapple)	Material handling, pipe laying
🔧 Quick Coupler	Fast attachment changeover
🪚 Hydraulic Shear	Metal cutting, demolition
🔩 Auger	Piling, drilling
🪣 Tiltrotator	360° rotation for versatility

📊 10. FUEL EFFICIENCY

Mode	Approx. Fuel Consumption
Idle	~5 – 6 L/hr (1.3 – 1.6 gal/hr)
Eco Mode (Working)	~12 – 15 L/hr (3.2 – 4.0 gal/hr)
Power Mode (Working)	~18 – 22 L/hr (4.8 – 5.8 gal/hr)

🟢 With Eco Mode + Auto Idle, the 320DL is one of the most fuel-efficient machines in its class.

✅ 11. KEY ADVANTAGES

✅ Advantage	Explanation
🎯 Versatile	Suitable for digging, loading, demolition, utility work
💪 Powerful	130+ hp with excellent dig force for 20-ton class
&Fuel Efficient**	Eco mode + regeneration saves significant fuel
🧠 Smart Tech	Product Link, grade control, payload ready
🔧 Low Maintenance	Long service intervals: 500/1000/2000/4000 hours
🏗️ Durable	Built for tough conditions — mining, construction, rental
🔄 High Resale Value	Cat brand = strong residual value worldwide

🆚 12. COMPARISON WITH COMPETITORS

Spec	Cat 320DL	Komatsu PC200-11	Hitachi ZX200-6	Volvo EC200E
Power	130 hp	130 hp	130 hp	127 hp
Operating Weight	~21,000 kg	~20,000 kg	~20,400 kg	~20,200 kg
Max Dig Depth	6.7 m	6.6 m	6.7 m	6.6 m
Bucket	0.75–1.0 m³	0.7–0.9 m³	0.75–0.93 m³	0.8–1.0 m³
Fuel Tank	400 L	360 L	360 L	340 L

🎯 13. TYPICAL APPLICATIONS

🏗️ Application	📋 Description
General Construction	Foundation, trench, backfill
Road Building	Grading, pipe laying, ditching
Mining	Loading trucks, bench digging
Demolition	With hydraulic breaker/shear
Utility Work	Water, sewer, gas pipe installation
Landscaping	Grading, ditching, material handling
Rental Fleet	Very popular in equipment rental companies

🔧 14. MAINTENANCE INTERVALS

Service	Interval
Engine Oil Change	500 hours (or 1 year)
Hydraulic Oil Change	2,000 hours (or 2 years)
Final Drive Oil	4,000 hours
Coolant Change	2,000 hours (or 2 years)
Fuel Filter	500 hours
Air Filter	1,000 hours
Track Tension Check	Every 250 hours

💰 15. APPROXIMATE PRICING (2024)

Configuration	Price Range (USD)
New Machine	$150,000 – $190,000
Used (3,000–5,000 hrs)	$80,000 – $130,000
Rental (Daily)	$500 – $800/day
Rental (Monthly)	$8,000 – $14,000/month

(Prices vary by region, configuration, and dealer)

🏅 SUMMARY


🏆 Best For	Mid-size construction, general purpose digging
⭐ Rating	⭐⭐⭐⭐⭐ (Industry benchmark)
🔑 Key Selling Point	Balance of power, efficiency, technology & durability
📈 Market Position	#1 best-seller in the 20-ton excavator class globally

The Cat 320DL is truly a workhorse — reliable, efficient, technologically advanced, and built to last. It's the go-to choice for contractors worldwide who need a versatile, mid-size excavator that can handle almost any job. 🚜💪

Would you like me to go deeper into any specific area — like comparisons, attachment options, or operating costs? 😊