8 Ton Excellent Condition Cat 308cr Japan Cat Original Mini- Sized Crawler Cat308cr Used Excavator Caterpillar 308cr for Sale

Comprehensive description of Caterpillar 308C excavator:

1. Equipment positioning and basic information

Tonnage and type:

The Caterpillar 308C is a small crawler backhoe excavator with a working weight of about 7.16 tons to 8.04 tons (different configurations), a standard bucket capacity of 0.26-0.38 cubic meters, and is mainly used for small and medium-sized earthworks, municipal construction and agricultural water conservancy scenes.

Production background:

Designed and produced by Caterpillar, it is known for its compact design and high cost performance.

2. Core parameters and performance

Power system

Engine:

Mainly equipped with Cat C3.3 DI Turbo engine (displacement 3.33L, cylinder diameter 94mm), rated power 53.1-54kW (about 72-73 horsepower), meeting ISO 9249/EEC 80/1269 emission standards. Some imported versions may use other models (such as 4M40-E1 engine, power 41kW).

Fuel and maintenance:

The fuel tank capacity is 125-135L, the engine oil replacement volume is 11.2L, the maintenance cycle is long, and it is suitable for continuous operation.

Hydraulic system

Main pump flow:

The maximum flow of the main pump is 147L/min (some models are 64L/min), the main overflow pressure is 27460-31380kPa (due to different systems), and an open hydraulic design is adopted to take into account stability and operational response.

Cylinder configuration:

Boom cylinder (110mm×985mm), dipper cylinder (90mm×932mm) and bucket cylinder (80mm×742mm), providing basic digging force (bucket digging force 57.1kN, dipper digging force 57.1kN).

Operation performance

Digging range:

The maximum digging depth is 4.09-4.21 meters, the maximum digging height is 7.33 meters, and the maximum unloading height is 5.3 meters, which is suitable for narrow spaces and conventional earthwork operations.

The travel speed is divided into high and low gears (5.1/3.2 km/h), the rotation speed is 10.8 rpm, and the climbing ability is 30%-35%.

Stability:

The track width is 450mm, the ground contact pressure is low, and the tail rotation radius is 1.75 meters, which is suitable for urban roads and soft ground.

3. Structure and design features

Dimensions and layout:

The dimensions in the transport state are about 6,080mm (length) × 2,320mm (width) × 2,560mm (height), the minimum ground clearance is 370mm, and the whole machine is compact and flexible.

Cab and operation:

The basic cab design is mainly mechanical control interface. Some later models may be upgraded to closed cabs, but with less intelligent configuration.

4. Application scenarios and market positioning

Applicable fields:

Foundation construction, earthwork leveling, pipeline laying and municipal maintenance, especially suitable for urban or township projects with limited space.

Economy: Fuel efficiency optimization, low maintenance cost (such as hydraulic oil tank capacity 51L, coolant 12.1L)