Used Caterpillar 307E2 Excavator

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CATERPILLAR 307E2 Compact Excavator Detailed Introduction

The Caterpillar 307E2 is a 7-ton class small hydraulic excavator in Caterpillar’s E2 series of construction equipment, engineered to balance high operation efficiency, low total cost of ownership, and strong adaptability for diverse light-to-medium duty work scenarios. It is widely deployed in global emerging markets (including China, Southeast Asia, Latin America, and Africa) and compliant with regional non-road emission standards such as China Non-road Stage III and EU Stage IIIA.

Core Technical Specifications

Parameter	Specification
Operating Weight (standard configuration with dozer blade)	6,800 kg – 7,200 kg
Engine Model	Cat C2.4 DI 4-cylinder turbocharged diesel engine
Net Rated Power	41.8 kW (56 hp) @ 2200 rpm
Bucket Capacity Range	0.22 m³ – 0.52 m³
Max Digging Depth (standard boom/arm)	4,080 mm (optional long reach configuration: 4,500 mm)
Max Digging Radius (standard configuration)	6,610 mm
Max Dump Height (standard configuration)	4,460 mm
Swing Speed	11 rpm
Travel Speed (low/high)	2.8 km/h / 4.7 km/h
System Hydraulic Working Pressure	28 MPa
Fuel Tank Capacity	135 L
Hydraulic Oil Tank Capacity	90 L
Gradeability	30°

Key Performance & Design Features

1. High Fuel Efficiency & Reliable Power Output

The proprietary Cat C2.4 engine adopts direct injection technology and optimized combustion design, delivering stable power even under high altitude, high temperature, or heavy load conditions:

Equipped with ECO working mode and automatic idle function, which cuts fuel consumption by up to 12% compared to the previous 307E model without sacrificing digging force
500-hour long interval for engine oil and filter replacement, reducing daily maintenance cost
Compliant with mainstream non-road emission standards, with lower exhaust emission level

2. Precise & Smooth Hydraulic System

The 307E2 is fitted with a load-sensing hydraulic system with pressure compensation valves, ensuring consistent movement speed regardless of load size:

Smooth compound operation of boom, arm, swing and travel functions, suitable for fine operation scenarios such as pipe laying and landscape trimming
Standard auxiliary hydraulic circuit with adjustable flow, supporting adaptation of more than 10 types of working attachments
Hydraulic oil replacement interval reaches 4,000 hours under normal working conditions, greatly reducing maintenance time and cost

3. Operator Comfort & Safety Compliance

The cab is designed in line with Caterpillar’s global ergonomic standards, and passes ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certification:

Fully sealed, low-noise cab with interior noise controlled below 75 dB(A), effectively isolating external dust and noise
Adjustable suspension seat with ergonomic armrests, and high-performance air conditioning system for stable temperature control in extreme weather
Large-area tempered glass design provides 360° panoramic vision, eliminating operation blind spots
High-definition LCD monitor displays real-time operation data, fault warning and maintenance reminders, reducing operation difficulty

4. High Durability & Easy Maintenance

All structural and core components are tested for extreme working conditions to ensure long service life:

Boom and arm are made of high-strength wear-resistant steel with reinforced welding points, able to withstand long-term heavy load impact
Sealed and lubricated track chassis system, with extended service life of rollers, idlers and track links
All daily maintenance points are arranged on the side of the fuselage, accessible on the ground without climbing onto the machine, which greatly improves maintenance efficiency
Standard on-board diagnostic interface, supporting fast fault detection by after-sales technicians

5. Strong Versatility

The 307E2 supports a wide range of optional configurations and attachments to meet diversified work demands:

Optional quick coupler, realizing replacement of different attachments within 3 minutes
Available attachments include general purpose buckets, rock buckets, hydraulic breakers, grapples, augers, rippers and hydraulic shears
Standard dozer blade with floating function, supporting site leveling and improving operation stability on sloped ground
Optional configurations: long reach boom, heated seat, centralized automatic lubrication system, Cat Product Link telematics system for remote fleet management (real-time monitoring of working hours, fuel consumption, location and fault information)

Typical Application Scenarios

Urban municipal works: Trench excavation for pipe and cable laying, road maintenance, urban green space construction
Residential and small commercial construction: Foundation excavation, construction waste removal, site leveling
Landscaping and agricultural works: Tree planting pit digging, farmland water conservancy construction, orchard management, greenhouse construction
Small demolition works: Demolition of low-rise buildings, concrete crushing with hydraulic breakers
Industrial and mining works: Small bulk material handling, workshop internal construction and maintenance