Caterpillar 307E2 Mini Hydraulic Excavator - Equipment Parameters

[MikePhua]

The CAT 307E2, a robust and reliable machine from Caterpillar, is part of the company's compact hydraulic excavator lineup. Designed to combine efficiency with versatility, this model is widely used in a variety of small-scale construction and digging projects. Below is a comprehensive breakdown of the machine's key features, performance, and technical specifications.
Basic Information

• Brand: Caterpillar
  
• Model: 307E2 Compact Hydraulic
  
• Manufacture Year: 2017
  
• Operating Hours: 7,700 hours
  
• Storage Location: Yiyang, Hunan, China
  

Engine and Power System
The CAT 307E2 is equipped with the Cat C2.6 DI Turbo engine, a turbocharged diesel power unit designed to meet the demands of smaller construction sites while maintaining fuel efficiency and reliability.

• Engine Model: Cat C2.6 DI Turbo
  
• Rated Power: 41.5 kW
  
• Bore × Stroke: 87 × 110 mm
  
• Displacement: 2.6 L
  
• Cooling Method: Water-cooled
  

This engine offers smooth, reliable power, providing a balance between fuel economy and the strength needed for digging, lifting, and other heavy-duty tasks. Caterpillar’s focus on efficiency ensures that the 307E2 performs well while using minimal fuel, which is crucial for projects with tight operational costs.
Performance and Capability
The 307E2 excels in performance, especially for a compact excavator in its weight class. It boasts impressive digging force and stability, making it suitable for a wide range of tasks from trenching to loading and grading. Its performance metrics are as follows:

• Machine Weight: 6,900 kg
  
• Bucket Capacity: 0.33 m³
  
• Boom Length: 3,700 mm
  
• Stick Length: 1,665 mm
  
• Swing Speed: 10.8 rpm
  
• Gradeability: 60%
  
• Bucket Digging Force: 50.6 kN
  
• Arm Digging Force: 37.1 kN
  
• Maximum Traction Force: 56.9 kN
  
• Travel Speed: High: 5.1 km/h | Low: 3.2 km/h
  
• Swing Torque: 16.3 Nm
  

The 307E2's ability to handle various terrains with ease is highlighted by its gradeability of 60%, allowing it to operate on steep inclines. The digging forces are strong enough to handle challenging soil conditions, making it ideal for tasks requiring deep digging or heavy lifting in compact spaces.
Hydraulic System
The hydraulic system of the 307E2 is equipped with a load-sensing, variable-displacement piston pump system. This hydraulic configuration enhances the machine’s fuel efficiency by adjusting the flow of hydraulic oil based on load requirements. The key hydraulic specifications are:

• Main Relief Pressure: 28 MPa
  
• Main Pump Flow: 147 L/min
  
• Travel Hydraulic Circuit Pressure: 28 MPa
  
• Swing Hydraulic Circuit Pressure: 24 MPa
  
• Hydraulic Oil Capacity: 94 L
  
• Pilot Oil Pressure: 3.9 MPa
  

The system is designed to operate with a range of attachments, ensuring versatility for different worksite requirements. Its high pump flow rate ensures rapid response times for the machine’s various digging, lifting, and swinging functions, making it an efficient performer even under challenging conditions.
Fuel and Fluid Capacity
The CAT 307E2 is built to operate efficiently for long hours without frequent refueling or maintenance:

• Fuel Tank Capacity: 135 L
  
• Hydraulic Tank Capacity: 51 L
  
• Engine Oil Capacity: 10.2 L
  
• Cooling Liquid Capacity: 11.9 L
  

These capacities allow the 307E2 to stay operational for longer periods, minimizing downtime for refueling and fluid changes—important for ensuring productivity on construction sites.
Dimensions and Size
The compact size of the 307E2 makes it an ideal choice for projects in tight or urban spaces. Its smaller footprint allows it to maneuver in areas that would be difficult for larger machines. The machine’s dimensions are:

• Total Transport Length: 6,070 mm
  
• Total Transport Width: 2,300 mm
  
• Cab Height: 2,540 mm
  
• Ground Clearance: 370 mm
  
• Rear Swing Radius: 1,750 mm
  
• Track Length: 2,760 mm
  
• Track Width: 450 mm
  
• Track Ground Length: 2,120 mm
  

With a rear swing radius of just 1,750 mm, the 307E2 is perfect for confined spaces where larger excavators cannot maneuver, providing flexibility and adaptability on smaller job sites.
Working Range
The machine’s working range is impressive for a compact excavator, allowing it to dig deep and reach out over significant distances. These capabilities are important for tasks such as trenching, deep digging, and loading:

• Max Digging Radius: 6,300 mm
  
• Max Digging Depth: 4,070 mm
  
• Max Digging Height: 7,240 mm
  
• Max Unloading Height: 5,190 mm
  
• Max Vertical Digging Depth: 3,730 mm
  
• Max Digging Radius at Ground Level: 6,180 mm
  
• Dozer Blade Lift/Push Depth: 390/350 mm
  

The 307E2 offers excellent vertical digging depth, allowing operators to dig trenches with greater precision. Its extended reach ensures that it can perform tasks such as lifting or loading material from greater distances, which increases efficiency on the job site.
Conclusion
The CAT 307E2 is a compact and highly capable machine, designed to meet the demands of a wide range of construction and excavation tasks. With its powerful engine, efficient hydraulic system, and impressive performance, it is well-suited for urban construction, utility work, and other small-scale projects. Whether you’re working in tight spaces or tackling deep digging jobs, the 307E2 ensures that the work gets done efficiently, with minimal downtime.