Here are some of the main differences between a bucket-wheel excavator and a single-bucket excavator.
What sets BWEs apart from other large-scale mining equipment, such as bucket chain excavators, is their use of a large wheel consisting of a continuous pattern of buckets used to scoop material as the wheel turns.
Equipped with one bucket, working in an intermittent cycle i.e between each working stage there are supporting stages such as moving a loaded bucket, emptying it and getting back to work.
Used in surface mining. The primary function of BWEs is to act as a continuous digging machine in large-scale open-pit mining operations, removing thousands of tons of overburden a day. They rank among the largest vehicles (land or sea) ever produced.
Smaller machines from this type are used for digging ditches.
Widely used in ground works, structural and shipping.
With the use of exchangeable equipment they are used for different purposes such as:
- for lifting loads
- as a loader
- as pile driver
Single-bucket excavators can be divsioned in many ways, these are only few of them:
- By the scale of work they can get done:
- mini excavators (up to 0,16 m³)
- small (>0,16 to 0,50 m³)
- medium (>0,50 to 5 m³)
- large (>5 m³)
- By the engine:
- By the power source:
- Internal combustion
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