Used Caterpillar 307.5Excavator

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🏗️ Overview

The Caterpillar 307.5 is a next-generation mini (compact) hydraulic excavator in Cat's lineup, weighing approximately 7 metric tons. It is designed for versatility in tight spaces and is widely used in utility work, landscaping, construction, road building, and demolition. It replaces/complements the older 307 series with improved fuel efficiency, comfort, and technology.

📐 Key Specifications

Specification	Details
Operating Weight	~7,000 – 7,500 kg (15,432 – 16,535 lbs)
Engine	Cat® C3.3B ACERT® — 4-cylinder turbo diesel
Net Power	~49.5 HP (36.9 kW) @ 2,200 rpm
Max Digging Depth	~4,170 mm (13 ft 8 in)
Max Reach (Ground Level)	~5,900 mm (19 ft 4 in)
Max Digging Height	~5,900 mm (19 ft 4 in)
Bucket Capacity (Std.)	0.16 – 0.28 m³ (0.21 – 0.37 cu yd)
Hydraulic Flow	~83 L/min (22 gal/min)
Operating Pressure	210 bar (3,045 psi)
Tail Swing Radius	~1,850 mm (Zero Tail Swing)
Track Width	~400 mm (Rubber) / ~300 mm (Steel)
Ground Clearance	~340 mm (13.4 in)

& Engine & Performance

Feature	Detail
Engine Model	Cat C3.3B ACERT
Displacement	3.3 L
Emissions	Meets Tier 4 Final / Stage V emission standards
Fuel Tank	~120 L (31.7 gal)
Fuel Efficiency	Improved ~10-15% over previous 307 model
Cooling System	Heavy-duty with large-capacity radiator

🔧 Hydraulic System

Feature	Detail
Type	Open-center, load-sensing hydraulics
Pump Type	Variable displacement piston pump
Auxiliary Flow	Available (for attachments like breakers, augers, grapples)
Quick Coupler Ready	Yes — Cat SM coupler available
Hydraulic Pattern	2-function (boom/arm + swing) or 3-function (with auxiliary)

🚜 Undercarriage Options

Option	Details
Rubber Tracks	✅ Standard — Better for road travel, pavement protection, ~400 mm width
Steel Tracks	✅ Optional — Better for rocky/abrasive terrain, ~300 mm width
Blade	Dozer blade available for grading/leveling
Track Gauge	Adjustable (1,600 – 2,200 mm)

🖥️ Cab & Operator Comfort

Feature	Detail
ROPS/FOPS	✅ Fully certified rollover & falling object protection
Air Conditioning	✅ Standard
Heating	✅ Standard
Seat	Suspended, adjustable with armrests
Display	LCD monitor with machine info, diagnostics, camera
Sound Level	~72 dB(A) — relatively quiet for its class
Visibility	Excellent all-around visibility with large glass area
Controls	Joystick with programmable patterns (2-speed travel)

📡 Technology & Connectivity

Technology	Detail
Cat Product Link™	✅ Real-time machine tracking, utilization, maintenance alerts
Cat Payload (Optional)	Weigh-in-motion for bucket load accuracy
Cat Grade (Optional)	2D/3D grade control for precision grading
Rearview Camera	✅ Standard
USB Port	✅ For diagnostics & updates
Cat App	Remote monitoring via smartphone

🔩 Common Attachments

Attachment	Use
Hydraulic Breaker (Hammer)	Concrete, rock breaking
Auger / Drill	Post holes, fence posts
Grapple (Orange Peel)	Scrap handling, sorting
Thumb	Material handling, pipe loading
Compactor Plate	Soil/gravel compaction
Ripper (Single Shank)	Hard ground breaking
Bucket (Various sizes)	Digging, grading, trenching
Quick Coupler	Fast attachment changeover

✅ Advantages

Advantage	Explanation
🔹 Zero Tail Swing	Works extremely close to walls, buildings, and obstacles
🔹 Compact Size	Fits through standard gates (~1m), narrow passages
🔹 Fuel Efficient	Tier 4 Final engine saves fuel costs
🔹 Low Maintenance	Easy access service points, long service intervals (500/1000 hrs)
🔹 Versatile	Wide range of attachments makes it a "do-it-all" machine
🔹 Resale Value	Cat brand = strong residual value
🔹 Operator Comfort	One of the best cabs in the mini excavator class
🔹 Transport	Can be trailer-mounted (within 7.5T limits in many regions)

📊 Comparison with Competitors

Machine	Weight	Power	Dig Depth
Cat 307.5	~7,100 kg	49.5 HP	4,170 mm
Kubota KX080-4	~4,900 kg	47 HP	3,680 mm
John Deere 75G	~7,800 kg	51 HP	4,300 mm
Komatsu PC78US-11	~7,800 kg	52 HP	4,170 mm
Doosan DX75R-5	~7,400 kg	49 HP	4,300 mm

The Cat 307.5 is competitive in power and depth while offering superior technology and dealer network support.

💰 Approximate Pricing (2024-2025)

Configuration	Approximate Price (USD)
Rubber Tracks, Standard Bucket	$65,000 – $78,000
Steel Tracks	$68,000 – $82,000
With A/C + Tech Package	$75,000 – $90,000
(Prices vary by region, dealer, and configuration)

🎯 Ideal Applications

Application	Why 307.5?
🏡 Residential construction	Compact, quiet, zero tail swing
🌳 Landscaping	Versatile attachments, gentle on lawns
🛣️ Utility/Trenching	Precise digging, narrow bucket options
🏚️ Demolition	Hydraulic breaker capability
🚜 Agriculture	Fence post drilling, grading
🏗️ Urban/Infill sites	Works in tight spaces between buildings

🔧 Maintenance Intervals

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

📝 Summary

The Cat 307.5 is a highly capable, technologically advanced mini excavator that delivers:

✅ Excellent performance for its class
✅ Superior operator comfort
✅ Strong connectivity (Product Link)
✅ Wide attachment versatility
✅ Low operating costs & fuel efficiency
✅ Global Cat dealer support & parts availability

It is considered one of the top choices in the 7-ton mini excavator segment, especially for contractors who value reliability, technology, and resale value.

📌 For the most accurate and up-to-date specifications, always refer to the official Caterpillar Product Spec Sheet or contact your local Cat dealer.

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