Bucket-wheel excavator vs single-bucket excavator

Here are some of the main differences between a bucket-wheel excavator and a single-bucket excavator.

Short informations:

Bucket-wheel 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.

Single-bucket excavator

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.

Usage:

Bucket-wheel excavator

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.

Single-bucket excavator

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

Division:

Bucket-wheel excavator

1.trencher

• transverse
• longitudinal

2. wheel

• spatial
• longitudinal

Single-bucket excavator

Single-bucket excavators can be divsioned in many ways, these are only few of them:

1. 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)
2. By the engine:
   • mechanical
   • hydraulic
3. By the power source:
   • steam
   • Internal combustion
   • Diesel-electric
   • electric

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