Used Caterpillar 306EExcavator

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📌 1. OVERVIEW

Item	Detail
Manufacturer	Caterpillar Inc.
Series	E-Series (2nd Generation Compact Excavator)
Class	Mini / Compact Excavator (~6-ton class)
Successor	306E2 (upgraded version)
Production Era	~2012 – Present
Target Market	Landscaping, utility, residential construction, small civil works

The CAT 306E is one of Caterpillar's most popular mini excavators, designed for versatility, fuel efficiency, and operator comfort in tight job sites. The upgraded 306E2 version further improved emissions compliance (Tier 4 Final / EU Stage V), fuel economy, and hydraulics.

📌 2. ENGINE SPECIFICATIONS

Parameter	306E	306E2
Engine Model	Cat® C1.1 ACERT®	Cat® C1.1 ACERT®
Type	3-cylinder, turbocharged diesel	3-cylinder, turbocharged diesel
Displacement	1.1 L	1.1 L
Rated Power	~42.8 hp (31.9 kW) @ 2,200 rpm	~42.8 hp (31.9 kW) @ 2,200 rpm
Emissions	Tier 3 / EU Stage IIIA	Tier 4 Final / EU Stage V
Fuel Tank	~85 L (22.5 gal)	~85 L (22.5 gal)
Fuel Consumption	~8–10 L/hr (varies by application)	Improved ~7–9 L/hr

✅ The ACERT® technology provides excellent fuel efficiency and reduced emissions.

📌 3. OPERATING WEIGHT & DIMENSIONS

Parameter	Specification
Operating Weight	~6,060 kg (13,360 lbs)
Overall Length (w/ stick)	~5,850 mm (19.2 ft)
Width (rubber tracks)	~1,800 mm (5.9 ft)
Width (steel tracks)	~1,780 mm (5.8 ft)
Height (to canopy top)	~2,500 mm (8.2 ft)
Ground Clearance	~320 mm (12.6 in)
Track Gauge	~1,400 mm (55 in)
Tail Swing	Zero Tail Swing (standard) ✅

✅ Zero Tail Swing = the upper structure doesn't swing beyond the track width, making it ideal for tight spaces and near walls/buildings.

📌 4. HYDRAULIC SYSTEM

Parameter	Specification
System Pressure	210 bar (3,045 psi)
Pump Flow	~83 L/min (22 US gal/min)
Auxiliary Flow (2nd circuit)	~45 L/min (12 US gal/min)
Hydraulic Thumb Ready	✅ Yes
Quick Coupler Ready	✅ Yes (hydraulic)
Boom/Arm/Bucket Cylinders	Piston-type with regenerative circuit

✅ The 2-speed travel and regenerative circuit provide fast cycle times and efficient operation.

📌 5. DIGGING PERFORMANCE

Parameter	Specification
Max Digging Depth	~3,920 mm (12.86 ft)
Max Digging Reach	~5,900 mm (19.36 ft)
Max Dumping Height	~4,100 mm (13.45 ft)
Max Digging Force (Bucket)	~37 kN (8,320 lbf)
Max Digging Force (Arm)	~26 kN (5,845 lbf)
Bucket Capacity	0.13 – 0.23 m³ (0.17 – 0.30 cu yd)
Blade Capacity (if equipped)	1,500 mm (59 in) wide

📌 6. UNDERCARRIAGE OPTIONS

Option	Description	Best For
🔩 Steel Tracks (400mm)	Standard, durable	General construction, demolition
🛞 Rubber Tracks (450mm)	Wider, road-friendly	Urban work, landscaping, indoor use
🔧 Extendable Undercarriage	Wider track stance	Stability on soft ground

📌 7. CAB & OPERATOR COMFORT ⭐ (E-Series Highlights)

The E-Series was a major leap in operator comfort:

Feature	Detail
🪑 Seat	Fully adjustable air-suspension seat with armrests
🌡️ Climate Control	Heater + A/C (enclosed cab)
🖥️ Display	LCD monitor with machine info, diagnostics, camera
📷 Rear-View Camera	Standard
🔇 Noise Level	~73 dB(A) — very quiet for its class
🚪 Entry/Exit	Wide-open door, anti-slip steps, grab handles
🔦 LED Work Lights	Front & rear
📻 Radio/USB/Bluetooth	Available
ROPS/FOPS	Fully certified canopy (open) or enclosed cab

⭐ The 306E2 further improved with auto-idle, Eco-mode, and an upgraded touchscreen monitor.

📌 8. ATTACHMENTS & VERSATILITY 🔧

The 306E is extremely versatile with a wide range of attachments via the hydraulic quick coupler:

Attachment	Application
🪣 Standard Bucket (200–600mm)	General digging
👍 Hydraulic Thumb	Grappling, demolition, material handling
🔨 Hydraulic Breaker (Hammer)	Concrete, rock breaking
🔧 Auger / Earth Drill	Post holes, fencing, piling
🪵 Grapple (Sorting/Log)	Log handling, demolition debris
🧹 Rake	Landscaping, leveling
🪚 Trenching Bucket (narrow)	Utility trenching
🏗️ Dozer Blade	Grading, backfilling (available)
🔄 Rotating Grapple	Demolition, recycling

📌 9. SAFETY & TECHNOLOGY

Technology	Description
🛑 Auto Engine Idle	Engine slows when not working → saves fuel
📊 Cat Product Link™	Telematics — track location, hours, diagnostics remotely
🔐 Anti-Theft System	CAT Security (immobilizer)
⚠️ Backup Alarm	Standard
🔄 Two-Speed Travel	High speed for transport / Low speed for precision
🧠 Eco Mode (306E2)	Optimizes engine & hydraulic output for fuel savings
🛡️ ROPS/FOPS Certified	Rollover & falling object protection

📌 10. COMPARISON WITH COMPETITORS

Feature	CAT 306E2	Komatsu PC55	Kubota KX057	John Deere 50G
Weight	6,060 kg	5,270 kg	5,470 kg	5,360 kg
Power	42.8 hp	42.5 hp	38.7 hp	45 hp
Dig Depth	3.92 m	3.57 m	3.50 m	3.47 m
Tail Swing	Zero ✅	Zero ✅	Zero ✅	Zero ✅
Emissions	Tier 4 Final ✅	Stage V ✅	Stage V ✅	Tier 4 Final ✅
Brand Strength	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐	⭐⭐⭐⭐

🏆 The CAT 306E2 stands out for resale value, dealer network, durability, and overall build quality.

📌 11. COMMON APPLICATIONS 🏗️

🏠 Residential	🏙️ Urban/Utility	🌿 Landscaping	🔨 Demolition
Foundation excavation	Utility trenching	Grading & leveling	Concrete breaking
Septic/drainage	Pipe laying	Planting & tree work	Debris handling
Driveway work	Cable installation	Sod installation	Interior demolition
Pool excavation	Road repair	Retaining walls	Material sorting

📌 12. APPROXIMATE PRICING (2024, USD)

Configuration	Price Range
306E2 — Open Canopy (ROPS)	$65,000 – $75,000
306E2 — Enclosed Cab (HVAC)	$80,000 – $95,000
With Hydraulic Thumb	+$5,000 – $8,000
With Quick Coupler	+$3,000 – $5,000
With Dozer Blade	+$4,000 – $6,000
Used (2018–2021, ~3,000 hrs)	$45,000 – $60,000

💡 Prices vary by region, dealer, and configuration.

📌 13. PROS & CONS ✅❌

✅ PROS	❌ CONS
Excellent fuel efficiency	Higher purchase price vs. some competitors
Zero tail swing — great for tight sites	Limited to ~6-ton class (can't do heavy work)
Outstanding dealer/parts network worldwide	Steel track version can damage paved surfaces
Very comfortable cab (E-Series)	Maintenance can be costly (CAT parts)
Strong resale value	Rubber tracks wear faster than steel
Versatile with many attachments	Smaller bucket capacity vs. midi excavators
Low noise & vibration	—
Advanced telematics (Product Link)	—

📌 14. SUMMARY 🎯


Best For	Contractors who need a versatile, fuel-efficient, compact excavator for urban/residential/utility work
Not Ideal For	Heavy demolition, large-scale earthmoving (go for 308/312 instead)
Bottom Line	⭐⭐⭐⭐⭐ — The CAT 306E2 is arguably the BEST mini excavator in its class for reliability, comfort, resale value, and versatility. It's the "gold standard" of 6-ton compact excavators.