Used Caterpillar 307E2 Excavator

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📌 1. OVERVIEW

The Caterpillar 307E2 is a mini hydraulic excavator (7-ton class) manufactured by Caterpillar Inc. It belongs to the E2 Series of mini excavators, which succeeded the popular E1 Series (307E). It is designed for versatility, fuel efficiency, and operator comfort in tight workspaces such as urban construction, landscaping, utility work, road building, and residential excavation.

Parameter	Detail
Model	307E2
Series	E2 (Next-Gen Mini Excavator)
Class	7-ton / Mini Excavator
Manufacturer	Caterpillar Inc.
Production	~2011–Present
Key Markets	North America, Europe, Asia-Pacific, Middle East

📌 2. ENGINE & POWERTRAIN

Specification	Detail
Engine Model	Cat® C2.4 ACERT® Turbo Diesel
Engine Type	4-cylinder, in-line, turbocharged, aftercooled
Displacement	2.4 L (146 in³)
Net Power	37.6 kW (50.4 hp) @ 2,200 rpm
Emission Standards	EPA Tier 4 Final / EU Stage V (no DPF required — cleaner & simpler)
Fuel Tank Capacity	~80 L (21.1 gal)
Hydraulic Pump Type	Variable displacement piston pump
Hydraulic Flow	~116 L/min (30.6 gal/min)
Operating Pressure	34.5 MPa (5,000 psi)

✅ The ACERT engine provides excellent fuel efficiency and meets the strictest emission regulations without a Diesel Particulate Filter (DPF), reducing maintenance complexity.

📌 3. DIMENSIONS & WEIGHT

Parameter	Value
Operating Weight	~7,010 kg (15,454 lb)
Transport Length	~5,940 mm (234 in)
Transport Width	~2,120 mm (83.5 in)
Transport Height	~2,580 mm (101.6 in)
Tail Swing Radius	~1,470 mm (57.9 in) — Zero Tail Swing (ZTS) option available
Ground Clearance	~340 mm (13.4 in)
Track Width	Adjustable: ~1,000–1,800 mm (39.4–70.9 in)

🔄 The Zero Tail Swing (ZTS) version swings the upper structure within the track width footprint, making it ideal for working near walls, fences, and buildings.

📌 4. DIGGING PERFORMANCE

Parameter	Value
Max Digging Depth	~4,220 mm (13.8 ft)
Max Reach (Ground Level)	~6,070 mm (19.9 ft)
Max Dump Height	~4,420 mm (14.5 ft)
Max Digging Force (Boom)	~32.5 kN (7,300 lbf)
Max Digging Force (Arm)	~23.8 kN (5,350 lbf)
Bucket Capacity Range	0.16 – 0.34 m³ (0.21 – 0.45 yd³)
Boom Options	Standard boom or Long Reach boom available
Arm Options	Standard arm or Long Reach arm available

Configuration	Dig Depth	Reach
Standard Boom + Standard Arm	4.22 m (13.8 ft)	6.07 m (19.9 ft)
Long Reach Boom + Standard Arm	5.38 m (17.6 ft)	7.30 m (24.0 ft)
Standard Boom + Long Reach Arm	4.80 m (15.7 ft)	7.60 m (24.9 ft)

📌 5. UNDERCARRIAGE

Option	Details
Rubber Tracks	300 mm (11.8 in) wide — low ground pressure (~33 kPa), road-friendly, less damage to paved surfaces
Steel Tracks	400 mm (15.7 in) wide — more durable for rocky/abrasive terrain
Track Adjustment	Hydraulic — adjustable width from cab

Undercarriage	Width	Ground Pressure
Rubber Tracks (300mm)	1,000–1,800 mm	~33 kPa (4.8 psi)
Steel Tracks (400mm)	1,200–2,000 mm	~39 kPa (5.7 psi)

📌 6. CAB & OPERATOR COMFORT

The 307E2 features one of the best cabs in its class:

Feature	Detail
ROPS/FOPS	✅ Rollover & Falling Object Protective Structure certified
Cab Type	Enclosed, pressurized, air-conditioned
Seat	Suspended, adjustable, heated (optional)
Controls	Joystick controls with proportional hydraulic flow
Display	LCD monitor with diagnostic info, fuel level, engine hours
Noise Level	~72 dB(A) — very quiet for its class
Visibility	Excellent all-around visibility with large glass area
Climate Control	Heater + A/C standard
Radio/USB	Standard audio system with AUX/USB input

🏆 The E2 cab is a major upgrade from the E1 series — significantly quieter, more spacious, and better ergonomics.

📌 7. HYDRAULIC ATTACHMENTS & VERSATILITY

The 307E2 is designed as a multi-purpose platform:

Feature	Detail
Quick Coupler	✅ Ready (hydraulic quick coupler for tool changes in seconds)
Auxiliary Hydraulics	2nd & 3rd auxiliary lines available for breakers, grapples, augers
Hydraulic Thumb Ready	✅ Thumb-in bucket coupler ready
Blade Ready	✅ Dozer blade available
Common Attachments	Bucket, hydraulic breaker, hydraulic thumb, auger, grapple, ripper, compactor, brush cutter

Attachment	Use Case
🪣 Standard Bucket	General digging, trenching
🫳 Hydraulic Thumb	Grappling logs, pipes, debris
🔨 Hydraulic Breaker	Concrete/rock demolition
🔩 Auger	Post-hole drilling
🌿 Brush Cutter	Land clearing, vegetation
🪨 Grapple	Material handling, sorting
🔪 Ripper	Breaking hard ground, frozen soil

📌 8. TECHNOLOGY & SMART FEATURES

Technology	Description
Cat Product Link™	Remote machine monitoring — location, hours, fuel usage, diagnostics via satellite/cellular
Cat Grade with 2D (Optional)	GPS-guided digging to a design grade — reduces rework
E-Fence (Optional)	Geofencing — alerts if machine leaves designated area
Security System	Engine immobilizer, alarm system
Auto-Idle	Engine automatically reduces RPM when not working — saves fuel
Auto-Swing Dampening	Smooths swing motion for precise placement
Slope Assist (Optional)	Helps maintain stability on slopes

📌 9. FUEL EFFICIENCY

Metric	Value
Fuel Consumption	~8–12 L/hr (2.1–3.2 gal/hr) depending on workload
Fuel Tank	~80 L (21.1 gal)
Typical Working Time	~6–8 hours per tank

💰 The 307E2 is one of the most fuel-efficient excavators in the 7-ton class thanks to the ACERT engine + auto-idle system.

📌 10. MAINTENANCE

Item	Interval
Engine Oil Change	500 hrs or 6 months
Hydraulic Oil Change	2,000 hrs or 1 year
Fuel Filter	500 hrs
Air Filter	1,000 hrs
Track Tension Check	Every 250 hrs
Grease Points	Every 8 hrs (daily)

🔧 The E2 series features improved service access compared to E1 — ground-level check points, easy-access filters, and a tilt-up engine hood.

📌 11. COMPARISON: 307E2 vs 307E (E1) vs Competitors

Feature	307E2 (E2)	307E (E1)	Komatsu PC78US-11	John Deere 75G
Power	50.4 hp	48.4 hp	52.4 hp	51.7 hp
Weight	7,010 kg	7,150 kg	7,850 kg	8,200 kg
Max Dig Depth	4.22 m	4.09 m	4.27 m	4.27 m
Emissions	Tier 4 Final	Tier 3	Stage V	Tier 4 Final
Cab Noise	72 dB	76 dB	74 dB	73 dB
Quick Coupler	✅ Std	❌ Optional	✅ Std	✅ Std
Product Link	✅	✅	✅ (KOMTRAX)	✅ (JDLink)

📌 12. APPLICATIONS

Industry	Use Cases
🏗️ Construction	Trenching, foundation work, utility installation
🌳 Landscaping	Tree planting, grading, pool excavation
🔌 Utility	Pipe laying, cable trenching, manhole work
🛣️ Road Building	Drainage, curb work, patching
🏠 Residential	Driveways, septic systems, backyard excavation
🏭 Demolition	Small demolition with hydraulic breaker
🌾 Agriculture	Drainage ditches, fence line work

📌 13. PRICING (Approximate — 2024)

Configuration	Approx. Price (USD)
307E2 — Rubber Tracks	$75,000 – $90,000
307E2 — Steel Tracks	$80,000 – $95,000
307E2 ZTS (Zero Tail Swing)	$85,000 – $100,000
307E2 with Long Reach	$90,000 – $110,000
With Quick Coupler + Aux Hyd	$95,000 – $115,000

💡 Prices vary by region, dealer, and configuration. Used models (2015–2020) range from $45,000 – $70,000.

📌 14. SUMMARY — WHY CHOOSE THE 307E2?

✅ Pros	❌ Cons
Excellent fuel efficiency	Higher purchase price than some competitors
Best-in-class operator cab	Limited lift capacity vs larger mini excavators
Zero Tail Swing option	Track width still wider than some ultra-compact models
Tier 4 Final — no DPF maintenance	Rubber tracks wear faster on rocky terrain
Huge attachment versatility
Strong resale value
Cat dealer network & parts availability

🏆 BOTTOM LINE

The Caterpillar 307E2 is widely regarded as one of the best 7-ton mini excavators on the market. It combines fuel efficiency, operator comfort, digging performance, and attachment versatility in a compact package. Whether you're a contractor, landscaper, or utility company, the 307E2 delivers reliability, productivity, and low operating costs — backed by the legendary Cat dealer network and Product Link technology.

🔑 "If you want the best cab, best fuel economy, and best resale value in the 7-ton class — the 307E2 is the gold standard."

Sources: Caterpillar Official Specs, Cat Product Link, Equipment Watch, Rental Yard Data (2024)

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Used Caterpillar 307E2 Excavator

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Used Caterpillar 307E2 Excavator

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We guarantee the quality of each machine and promise
to offer you the most favorable price.