Used Caterpillar 307E2 Excavator

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CATERPILLAR 307E2 Hydraulic Excavator Detailed Introduction

The Caterpillar 307E2 is a 7-ton class compact hydraulic excavator under Caterpillar’s E-series small excavator lineup, engineered to deliver high reliability, fuel efficiency and operational flexibility for small-to-medium construction projects. It is widely favored by rental fleets, individual contractors and municipal engineering teams for its adaptability to narrow working sites and versatile application scenarios.

1. Core Engine Specifications

Powered by the Caterpillar proprietary C2.4 DI turbocharged 4-cylinder diesel engine, the 307E2 delivers a net power output of 42.4 kW (56.8 hp) at 2200 rpm, with a displacement of 2.4 L.

Emission compliance: Meets different regional emission standards including EU Stage IIIA, US EPA Tier 4 Interim, and China Non-road Mobile Machinery Stage III/IV, to adapt to global market demands.
Fuel adaptation: The direct injection fuel system features strong tolerance to low-quality diesel, reducing failure risks in regions with unstable fuel supply, and is equipped with a two-stage fuel filter to effectively filter impurities.
Fuel efficiency: Optimized combustion system cuts fuel consumption by 10~15% compared with the previous generation 307D model, greatly lowering long-term operating costs.

2. High-performance Hydraulic System

The 307E2 adopts Caterpillar’s mature load-sensing hydraulic system with flow sharing technology, ensuring smooth compound movements even when multiple actions (digging, swinging, traveling) are performed simultaneously.

Main pump maximum flow: 148 L/min, system working pressure: 30.5 MPa, guaranteeing strong digging force.
Boom and stick regeneration function: Reduces unnecessary hydraulic oil circulation, cuts energy loss and improves operation speed.
Adjustable auxiliary hydraulic circuit: Supports 1-way/2-way hydraulic output for various attachments (breaker, grapple, auger, etc.), with adjustable flow to match different work requirements.
Optional fine operation mode: Lower operation speed for high-precision work such as pipe laying, landscape finishing, to avoid over-excavation.

3. Key Operating Parameters

Item	Specification
Operating weight	6800 kg ~ 7800 kg (varies with configuration: cab/canopy, track type, attachment fitment)
Standard bucket capacity	0.25 m³ ~ 0.34 m³
Maximum digging depth (standard boom/stick)	4170 mm
Maximum digging reach	6290 mm
Maximum dumping height	4340 mm
Swing speed	11 rpm
Travel speed (low/high)	2.6 km/h / 4.5 km/h
Gradeability	30° (58% slope)
Standard dozer blade width	2200 mm (optional floating function for ground leveling)

4. Structural Durability Design

Caterpillar’s industry-leading structural design ensures the 307E2 adapts to heavy-load and harsh working conditions:

X-type undercarriage frame: Welded with high-strength steel, excellent torsional resistance and load-bearing capacity, avoiding deformation under long-term heavy load.
Reinforced work group: Boom and stick are stress-relieved after welding, with thickened steel plates at high-stress positions, passing 10,000-hour extreme working condition tests.
Sealed and lubricated track system: Optional steel track or rubber track (for road protection), all rollers, idlers and carrier rollers are sealed for life, extending service life and reducing daily maintenance work.
Hard chrome-plated pins for work group: Effectively reduces wear and clearance, lowers operation noise and extends service intervals of connection parts.

5. Operator Comfort & Safety

The 307E2 cab meets international ROPS (Roll-over Protective Structure) and FOPS (Falling Object Protective Structure) certification, providing all-round safety protection for operators:

Sealed pressurized cab: Internal noise level is controlled at 75 dB(A), effectively isolating external dust and noise.
Ergonomic control layout: Pilot control joysticks with low operating force, adjustable suspension seat and armrests reduce fatigue during long-hour operation.
Full LCD monitor: Real-time display of fuel level, water temperature, fault codes, working hours and other operating parameters, convenient for operators to grasp equipment status.
Wide field of view: Large area front, side and rear glass reduces blind spots, equipped with rearview mirrors and reverse buzzer to improve operation safety.
High-efficiency air conditioning system: Fast cooling and heating, suitable for working in extreme temperature environments.

6. Maintenance & Cost Efficiency

The 307E2 is designed for easy maintenance to reduce downtime and operating costs:

Ground-level access to all routine maintenance points: Oil filters, fuel filters, air filters and hydraulic oil filters can be checked and replaced without climbing onto the upper frame, greatly improving maintenance efficiency.
Long maintenance intervals: Engine oil and filter replacement every 500 operating hours, hydraulic oil replacement every 4000 hours, hydraulic oil filter replacement every 2000 hours, air filter service interval up to 1000 hours (adjustable according to dust conditions).
Caterpillar Product Link telematics system (optional): Supports remote monitoring of equipment location, fuel consumption, working hours and fault warnings, helping fleet managers realize intelligent management and reduce unplanned downtime.
Global after-sales support: Caterpillar’s global dealer network provides timely parts supply, maintenance services and technical support, reducing worries during use.

7. Optional Configurations & Typical Applications

Optional Configurations

Quick coupler (for fast attachment switching), various capacity buckets, hydraulic breaker, log grapple, auger, rubber track pads, canopy (for low-height working sites), floating dozer blade, etc.

Typical Applications

Urban municipal works: Trenching, pipe laying, road repair, sidewalk construction
Landscaping: Site leveling, tree planting pit digging, garden terrain shaping
Small demolition: Small building demolition, concrete breaking with hydraulic breaker
Agricultural infrastructure: Irrigation ditch digging, farmland leveling, rural road construction
Material handling: Scrap sorting, timber handling, bulk material transfer with grapple
Narrow site operations: Indoor demolition, basement construction, urban renewal projects in limited space

Non flooded

No accident

Original product

Used Caterpillar 307E2 Excavator

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