Used Caterpillar 307 Excavator

Reading: 2207

Detailed Introduction to Caterpillar 307 Compact Excavator

The Caterpillar 307 (officially designated as the 307 CR in its latest next-generation iteration) is a 7-ton class compact hydraulic excavator produced by Caterpillar Inc., the world’s leading construction equipment manufacturer. It is positioned as a high-versatility, cost-effective small excavator that balances power, maneuverability and durability, making it one of the best-selling models in the global 6-8 ton compact excavator segment.

1. Core Specifications (Latest 307 CR Model)

Parameter	Details
Operating Weight	6,900 – 7,400 kg (varies by configuration and attachment)
Gross Power	43 kW / 57 hp (at 2,200 rpm)
Standard Bucket Capacity	0.18 – 0.34 m³
Maximum Digging Depth	4,080 mm
Maximum Digging Reach	6,290 mm
Maximum Dumping Height	4,350 mm
Bucket Digging Force	50.6 kN
Arm Digging Force	36.2 kN
Swing Speed	11 rpm
Travel Speed	2.8 km/h (low) / 4.8 km/h (high)
Tail Swing Radius	1,780 mm (compact radius design, suitable for narrow workspaces)
Emission Standard	Meets EU Stage V / U.S. EPA Tier 4 Final / China National IV requirements, applicable for most global markets

2. Core Performance Features

Power System

It is equipped with a Caterpillar proprietary C2.4 4-cylinder turbocharged diesel engine, featuring high low-end torque output, excellent fuel efficiency and strong reliability. The engine adopts an electronically controlled high-pressure common rail injection system and a maintenance-free aftertreatment system, requiring no manual intervention for diesel particulate filter (DPF) regeneration, effectively reducing downtime. The standard automatic idle and auto engine shutdown functions reduce fuel consumption by 5-10% compared to the older 307E2 model, greatly lowering long-term operating costs.

Hydraulic System

The advanced load-sensing hydraulic system with independent flow distribution ensures precise operation and strong power output even during compound actions (simultaneous swinging, boom lifting and bucket curling). The optimized main control valve reduces pressure loss, and the 307’s digging force matches the performance of many 8-ton class excavators. Operators can switch between two hydraulic modes: smooth mode for fine work (landscaping, pipe laying) and power mode for heavy-duty digging tasks, to adapt to different work scenarios.

Structural Durability

All core structures (upper frame, undercarriage frame, boom and arm) are made of high-tensile thick steel plates, and have passed 10,000 hours of extreme working condition fatigue tests. The heavy-duty undercarriage is equipped with forged track links, reinforced idlers and high-wear-resistant track shoes, which can adapt to rocky, muddy and other harsh construction sites. Reinforced plates are installed at high-stress positions of the boom and arm, covered by Caterpillar’s standard long-term structural warranty.

3. Operator Experience

The 307 is fitted with a ROPS/FOPS certified pressurized cab to guarantee operator safety:

Large panoramic glass provides a 360° unobstructed view, greatly reducing operation blind spots;
The fully adjustable suspension seat with lumbar support, ergonomic low-position joysticks and viscous damping cab mounts reduce vibration by 20% compared to older models, lowering fatigue during long shifts;
Standard configurations include automatic climate control, Bluetooth audio and a 10-inch high-definition touchscreen that displays real-time equipment operating data, fault alerts and maintenance reminders.

4. Maintenance & Total Cost of Ownership

All routine maintenance points (engine oil check port, coolant port, hydraulic oil filter, air filter) are arranged at ground level, eliminating the need to climb onto the upper frame for daily checks, and cutting routine maintenance time by 30%;
Extended service intervals for consumables: hydraulic oil and filter replacement at 3,000 working hours, engine oil and filter replacement at 500 working hours, fuel filter replacement at 1,000 working hours, greatly reducing long-term maintenance costs;
Caterpillar’s global 24/7 after-sales network provides fast parts supply and technical support, and the 307 has a very high residual value in the second-hand equipment market, further lowering total ownership cost.

5. Applicable Scenarios

Thanks to its compact size and strong versatility, the 307 is suitable for a wide range of work scenarios:

Urban construction: small building foundation construction, trench digging, sidewalk repair;
Municipal and landscaping work: pipe laying, tree planting, green belt sorting;
Agricultural engineering: farmland renovation, greenhouse construction, irrigation ditch digging;
Small demolition work, material handling in quarries and logistics yards.It can also be matched with a variety of Caterpillar original attachments, including hydraulic breakers, augers, grapples, rippers and tilt buckets, to meet diversified work demands.

Note: Earlier generations of the 307 series (including 307D, 307E, 307E2) have slightly different parameters and configurations, designed to meet different emission standards for regional markets. The above introduction applies to the latest next-generation 307 CR sold in most global markets.

Non flooded

No accident

Original product

Used Caterpillar 307 Excavator

RELATED PRODUCTS

Caterpillar 303.5E

Caterpillar 349D2L

Caterpillar 330BL

Caterpillar 320DL