Used Caterpillar 305.5E2Excavator

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📌 Overview

The Cat 305.5E2 is a 5-tonne class mini hydraulic excavator from Caterpillar's Next Generation mini excavator lineup. It was introduced to replace the popular 305E2 and is designed for versatility in construction, landscaping, utility work, and tight-space operations.

It is available in two configurations:

Version	Description
305.5E2	Standard (Long Radius)
305.5E2 CR	Compact Radius (shorter boom/arm for tighter areas)

🔧 Engine

Specification	Details
Engine Model	Cat C2.2 ACERT® Diesel
Type	4-cylinder, turbocharged, aftercooled
Power Output	34.5 HP (25.7 kW) @ 2,200 rpm
Emission Standards	EPA Tier 4 Final / EU Stage V (no DEF/AdBlue required — uses DOC + DPF)
Displacement	2.2 L (134 in³)
Fuel Tank Capacity	~50 L (13.2 gal)

✅ The ACERT engine delivers excellent fuel efficiency and low emissions without the need for diesel exhaust fluid (DEF), reducing operating costs.

📐 Dimensions & Weight

Specification	Standard (305.5E2)	CR Version (305.5E2 CR)
Operating Weight	~5,200–5,500 kg (11,460–12,125 lbs)	~5,200–5,500 kg
Transport Weight	< 6,000 kg (can be towed on standard trailer)	< 6,000 kg
Overall Length (w/ blade)	~5,750 mm (18 ft 10 in)	~5,000 mm (shorter)
Overall Width	~1,800 mm (5 ft 11 in)	~1,800 mm
Height (to cab roof)	~2,570 mm (8 ft 5 in)	~2,570 mm
Track Width	300 / 400 / 450 mm (adjustable)	300 / 400 / 450 mm

🏗️ Digging Performance

Specification	Standard (LR)	CR Version
Max Digging Depth	3,860 mm (12 ft 8 in)	~3,390 mm (11 ft 1 in)
Max Reach (Ground Level)	~6,100 mm (20 ft)	~5,200 mm (17 ft 1 in)
Max Dumping Height	~4,280 mm (14 ft 1 in)	~3,780 mm (12 ft 5 in)
Max Digging Reach	~6,180 mm (20 ft 3 in)	~5,200 mm (17 ft 1 in)
Bucket Capacity (Standard)	0.11–0.22 m³ (0.14–0.29 yd³)	0.11–0.18 m³
Bucket Digging Force	~33 kN (7,418 lbf)	~30 kN
Arm Digging Force	~24 kN (5,395 lbf)	~22 kN

& Hydraulic System

Specification	Details
Pump Type	Variable displacement piston pump
Max Flow Rate	~85 L/min (22.5 gpm)
Operating Pressure	35,000 kPa (5,076 psi)
Auxiliary Hydraulic Flow	~40 L/min (10.6 gpm) — for attachments
Hydraulic Quick Coupler	Available (Optional / Plus configuration)

🕹️ Operator Comfort & Cab

The 305.5E2 features Cat's Next Generation cab with significant upgrades:

Feature	Description
🪑 Suspension Seat	Air-suspended, heated, with armrests
🖥️ LCD Monitor	7-inch (18 cm) color touchscreen display
🎮 Multi-function Lever (JSM)	Single-lever joystick control for boom, arm, swing, and travel
❄️ Climate Control	Automatic A/C and heating
🔊 Low Noise	~73 dB(A) — one of the quietest in its class
🛡️ ROPS/FOPS	Fully enclosed cab with Roll-Over & Falling Object Protection
💡 LED Work Lights	Front and rear
🔑 Keyless Start	Available

🛠️ Key Features & Technology

Technology	Description
🔄 Auto-Idle	Engine automatically reduces RPM when not in use — saves up to 20% fuel
⚡ Eco Mode	Three power modes (Power, Smart, Eco) to match work demand
📊 Product Link™	Telematics-ready — remote monitoring of location, hours, fuel, diagnostics
🔧 S•O•S™ Samples	Oil analysis via Product Link for predictive maintenance
🔧 Cat Grade Ready	Optional 2D/3D grade control system
🔧 Cat Payload (Optional)	Real-time bucket payload weighing system
🛑 Security	Cat GAT (Guardian Anti-Theft) system available
🔩 Long Undercarriage	Optional — better stability for heavy work
🪚 Rubber Tracks	Optional — for road travel & sensitive surfaces

🔧 Common Attachments

Attachment	Application
🪣 Buckets (100–1200 mm)	General digging
🪤 Thumb (Hydraulic)	Grappling, demolition
🔨 Hydraulic Breaker	Concrete/rock breaking
🔩 Auger / Earth Drill	Post hole drilling
🪛 Hydraulic Quick Coupler	Fast attachment changeover
🪏 Dozer Blade	Grading, backfilling
🪚 Rake / Grapple	Material handling
🔧 Tiltrotator	360° rotation of attachment
🪓 Mulching Head	Landscaping, forestry

📊 Comparison: 305.5E2 vs Predecessor (305E2)

Feature	305E2 (Old)	305.5E2 (New)
Engine	C2.2 (Tier 3)	C2.2 ACERT (Tier 4 Final)
Power	37.4 HP	34.5 HP (slightly less, but more efficient)
Cab	Basic	Next Gen — much improved
Display	Basic gauge	7" touchscreen
Fuel Savings	—	Up to 20% with Auto-Idle
Telematics	Limited	Product Link ready
Noise Level	Higher	~73 dB(A) (quieter)
Service Access	Standard	Improved

💰 Approximate Pricing (2024 Estimates)

Configuration	Approximate Price (USD)
305.5E2 (Basic)	$55,000 – $65,000
305.5E2 CR (Basic)	$58,000 – $68,000
With Quick Coupler + Aux Hydraulics	$65,000 – $75,000
With Long Undercarriage + Rubber Tracks	$70,000 – $80,000+

(Prices vary by region, dealer, and configuration)

✅ Summary — Why Choose the 305.5E2?

✅ Strengths	Details
📦 Compact Size	Fits through standard gates, narrow spaces
⚖️ Transportable	Under 6 tonnes — no special permits in most areas
🔋 Fuel Efficient	Auto-idle + Eco mode = lower operating costs
🖥️ Modern Cab	Best-in-class operator comfort for a mini
🔧 Versatile	Wide range of attachments for any job
📡 Connected	Product Link telematics for fleet management
🛡️ Reliable	Cat C2.2 engine — proven durability

🎯 Ideal Applications

| 🏗️ Residential Construction | 🌳 Landscaping & Gardening || 🔌 Utility & Pipeline Work | 🏚️ Demolition (small scale) || 🛤️ Road & Pavement Work | 🌾 Agriculture || 🏢 Indoor/Tight-Space Work | 🏗️ Rental Fleets |

📌 Bottom Line: The Cat 305.5E2 is one of the best-in-class 5-tonne mini excavators, offering a perfect balance of power, comfort, technology, and versatility at a competitive price point. It's ideal for contractors who need a reliable, modern machine that can handle almost any small-to-medium job. 🚜💪