Used Caterpillar 320DLExcavator

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📌 Overview

The Caterpillar 320DL is a mid-size hydraulic excavator (20-ton class) manufactured by Caterpillar Inc. It is one of the most popular and versatile machines in the Cat excavator lineup, designed for general construction, road building, utility work, landscaping, and material handling. The "L" designation stands for Long Reach, making it ideal for deeper digging and demolition applications.

It sits between the smaller 315/318 models and the larger 320/323 series, offering an excellent balance of power, reach, and fuel efficiency.

🔧 Key Specifications

Parameter	Details
Model	320DL (Long Reach)
Manufacturer	Caterpillar Inc.
Engine	Cat® C7.1 ACERT®
Engine Type	6-cylinder, turbocharged, aftercooled diesel
Displacement	7.1 liters (434 cu in)
Net Power	~162 hp (120 kW) @ 2,000 rpm
Emissions	EPA Tier 4 Final / EU Stage V
Operating Weight	~20,500 – 21,000 kg (45,200 – 46,300 lbs)
Bucket Capacity (Standard)	0.75 – 1.0 m³ (1.0 – 1.3 yd³)
Max Digging Depth	~6,600 mm (21.7 ft)
Max Reach (Ground Level)	~9,900 mm (32.5 ft)
Max Dumping Height	~7,200 mm (23.6 ft)
Breakout Force	~120 kN (27,000 lbf)
Hydraulic Flow	~300 L/min (79 gal/min)
Working Pressure	350 bar (5,075 psi)
Fuel Tank Capacity	~400 L (106 gal)
Track Width	600 mm (24 in) – Triple grouser option available

🏗️ Engine – Cat C7.1 ACERT®

Feature	Detail
Configuration	Inline 6-cylinder, direct injection
Turbocharger	Single turbo with aftercooler
Emission Tech	Diesel Particulate Filter (DPF) + Selective Catalytic Reduction (SCR) – NO Urea/DEF required on some markets
Fuel Efficiency	Advanced combustion + electronic fuel injection
Maintenance Intervals	Extended service intervals (up to 1,000 hours for oil change)

✅ The ACERT technology ensures lower emissions, better fuel economy (~5-10% improvement), and reduced maintenance costs.

💪 Hydraulic System & Performance

The 320DL features a high-efficiency hydraulic system with:

Feature	Specification
Pump Type	Variable displacement axial piston
Total Flow	~300 L/min (79 US gal/min)
System Pressure	350 bar (5,075 psi)
Boom/Arm/Bucket Cylinders	Heavy-duty, with cushioning
Swing System	10 RPM, with auto-deceleration
Travel Motor	Variable displacement, pilot-controlled

📊 Performance Highlights:

Task	Performance
Digging Force (Boom)	~110 kN (24,700 lbf)
Digging Force (Arm)	~80 kN (18,000 lbf)
Bucket Breakout Force	~120 kN (27,000 lbf)
Swing Torque	~85 kNm
Gradeability	70% (35°)
Max Speed	~5.0 km/h (3.1 mph)

🎛️ Operator Environment & Technology

The 320DL offers one of the best cabs in its class:

Feature	Description
🪑 Air Suspension Seat	Fully adjustable with armrests
🖥️ 7" Touchscreen Display	Cat VisionLink / Information Display
🌡️ Climate Control	Auto A/C with heating
🔇 Noise Level	~72 dB(A) – very quiet for its class
📡 Cat Link™ Telematics	Real-time machine tracking, diagnostics, fleet management
📐 Cat GRADE	2D/3D grade control with GPS (optional)
🔄 Attach Ready	Quick coupler ready – fast tool changes
🛡️ ROPS/FOPS	Fully certified rollover & falling object protection
🔦 LED Work Lights	Excellent visibility for night operations

🛠️ Work Tool Attachments (Versatility)

The 320DL can be equipped with a wide range of attachments:

Attachment	Application
🪣 Standard Bucket	General digging, loading
🦷 Ripper	Hard ground, rock breaking
' Hydraulic Shear	Demolition, scrap metal
🔨 Hydraulic Breaker (Hammer)	Concrete, rock breaking
🪵 Grapple	Log handling, waste management
🔧 Thumb	Pipe, log, bulk material handling
🪣 Tiltrotator	Precise grading, pipe laying
🏗️ Compactor Wheel	Backfill compaction
🔌 Pile Driver	Foundation work

🏗️ "L" – Long Reach Advantage

The "DL" (Dig Long) version has:

Feature	Standard 320	320DL
Boom Length	~5,800 mm	~6,300 mm
Arm Length	~2,950 mm	~3,200 mm
Max Dig Depth	~6,200 mm	~6,600 mm
Max Reach	~9,500 mm	~9,900 mm
Best For	General work	Deep digging, demolition, dredging

✅ The Long Reach configuration is perfect for trench digging, deep foundation work, river/canal dredging, and building demolition.

💰 Operating Costs & Fuel Efficiency

Parameter	Value
Fuel Consumption	~18–25 L/hr (4.8–6.6 gal/hr) depending on load
Daily Fuel Cost	~$150–$250 USD (at $1.20/L)
Service Interval (Oil)	1,000 hours
Track Life	~3,000–5,000 hours
Undercarriage Life	~5,000–8,000 hours

✅ Cat's ACERT engine + efficient hydraulics make the 320DL one of the most fuel-efficient machines in the 20-ton class.

✅ Key Advantages

Advantage	Detail
⭐ Fuel Efficiency	Best-in-class consumption
⭐ Power & Reach	162 hp + long reach = deep digging capability
⭐ Operator Comfort	Premium cab, low noise, excellent visibility
⭐ Technology	Cat Link, GRADE, VisionLink – smart machine
⭐ Durability	Cat-built = long life, high resale value
⭐ Versatility	Works with 10+ different attachments
⭐ Low Emissions	Tier 4 Final / Stage V compliant
⭐ Resale Value	⭐⭐⭐⭐⭐ – Cat holds value exceptionally well

🏭 Applications

Industry	Use Case
🏗️ Construction	Foundation, trenching, road building
🛣️ Infrastructure	Utility trenching, pipe laying
🏚️ Demolition	Building teardown (with shear/breaker)
🌊 Dredging	River/canal dredging (long reach)
🌲 Landscaping	Grading, tree planting, grading
🗑️ Waste Management	Sorting, loading with grapple
🪨 Mining	Light quarrying, loading trucks
🌾 Agriculture	Drainage, pond digging

📊 Competitor Comparison

Machine	Weight	Power	Dig Depth	Fuel Eff.
Cat 320DL	20.5t	162 hp	6.6m	⭐⭐⭐⭐⭐
Komatsu PC200-11	20.5t	134 hp	6.4m	⭐⭐⭐⭐
Hitachi ZX200-6	20.8t	136 hp	6.3m	⭐⭐⭐⭐
Volvo EC200E	20.2t	148 hp	6.2m	⭐⭐⭐⭐
JCB JS200LC	20.5t	155 hp	6.5m	⭐⭐⭐⭐

🏆 The Cat 320DL wins on power, reach, technology, and resale value.

🎯 Summary


Best For	Deep digging, demolition, general construction, dredging
Power	162 hp – strong for 20-ton class
Reach	Up to 9.9m – excellent long reach
Efficiency	Top-tier fuel economy
Technology	Cat Link + GRADE ready
Price (New)	~$170,000 – $220,000 USD (varies by region/options)
Price (Used)	~$80,000 – $150,000 USD (depending on hours)

The Caterpillar 320DL is widely considered one of the best mid-size excavators in the world – combining power, efficiency, technology, and durability in a single package. It's a workhorse that delivers maximum productivity with minimum operating cost. 🚜💪