High efficiency Japan Kobelco sk75-8 Used hydraulic crawler excavators 7ton sk75 Second-hand bucket diggers

The Kobelco 75 excavator is a small and medium-sized excavator. With its stable performance, efficient operation ability and good user reputation, it occupies an important position in the construction machinery market. The following is a comprehensive description:

1. Technical parameters and core configuration

Basic parameters

Working weight: about 6,850-7,600kg (different models vary slightly, such as Kobelco 75-8 is 6,850kg, other versions may reach 7,600kg).

Bucket capacity: standard bucket capacity 0.15-0.4m³ (common configuration is 0.3-0.35m³, some models such as 75-8 can reach 0.4m³).

Engine: Different models are equipped with different engines, for example:

Isuzu 4LE2XCUA engine (75-8 model): rated power 41kW (55 horsepower), displacement 2.175L, known for low fuel consumption and reliability.

Hydraulic system: It adopts a single-pump load sensing hydraulic system, equipped with a variable displacement axial piston pump, with a flow rate of 132L/min, low energy loss, and good coordination of movements.

Operation performance

Digging depth: The maximum digging depth is 4,170-4,940mm, which can meet the needs of various working conditions.

Travel speed: 3-5.2km/h (the high-end version can reach 35km/h, but attention should be paid to the power performance of different gears).

Fuel economy: The fuel consumption is about 28-30L/h (with air conditioning on), and some users report that its energy saving is better than that of competing products of the same tonnage.

2. Performance characteristics

Efficient operation

Strengthen the design of structural parts (such as forearms, buckets and walking devices), improve durability, and adapt to harsh working conditions.

The load sensing hydraulic system is adopted, the compound operation is smooth, and the digging force is strong (the digging force of the forearm reaches 44kN, and the digging force of the bucket is 66kN).

Driving comfort

The cab design is based on large excavators, with a wide field of vision and good sealing. It is equipped with a suspended seat and a high-power air conditioner, and has high operating comfort.

Maintenance convenience

The hydraulic oil replacement cycle is extended to 5,000 hours, and the filter replacement cycle is 1,000 hours, reducing the maintenance frequency.

The hood adopts a fully open design, and maintenance parts are within reach (such as air filter, diesel pre-filter, etc.).

III. User feedback and advantages and disadvantages

Advantages

Good coordination of movements and fast operation speed, especially in scenes such as loosening and loading.

The engine runs stably (Isuzu model), has fewer oil leakage problems, and is recognized for its durability.

The value retention rate is high and the second-hand market performs well.

Disadvantages

Some users reported that the power is insufficient when traveling in low gear, and the cab's large field of vision makes it inconvenient to observe the crawler.

When the bucket capacity is large, throwing soil can easily cause the body to tilt, and attention should be paid to the balance of operation.