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Bucket Fill Factors – Bucket Selection Chart

Bucket Fill Factor

ISO / SAE calculates with a perfect horizontal position of the bucket. The buckets mounted on loaders will lean forward in carry position , with the angle varying depending upon the manufacturers type.

When selecting a bucket remember that 

  • Choose your bucket in accordance to the wheel loaders rated capacity and consider
    • The material,
    • The density of the material ( see our material density check sheet )
    • The actual transported volume
  • Some manufacturer wheel loaders with different Linkage systems will give a larger heap than the same size competitor wheel loader in the same material
Bucket Fill Factor TP Linkage general B. A. Caulkett buckets v2
Bucket Fill Factor TP Linkage Rock B. A. Caulkett buckets v2

Rock

The bucket fill factor in rock is close to 100%

Bucket Fill Factor TP Linkage Rock B. A. Caulkett buckets v2

Aggregate

The bucket fill factor in aggregate ( crushed material ) is  100%

Bucket Fill Factor TP Linkage Sand and Gravel B. A. Caulkett buckets v2

Sand & Gravel

The bucket fill factor in sand and gravel is close to 105%

Bucket Fill Factor TP Linkage Clay and Earth B. A. Caulkett buckets v2

Clay and Earth

The bucket fill factor in clay and earth is close to 110%

Bucket Selection Chart

The choice of bucket is determined by the density of the material and the expected bucket fill factor.

The actual bucket volume is often larger than the rated capacity, depending on the material being transported. Other considerations include

  • Open bucket design
  • Roll back performance in all positions
  • The bucket fill performance

Bucket Selection Sand & Gravel Example

  • Fill Factor ~ 105%
  • Density 1.65 t/m3 – 2695 lb/yd3
  • For a bucket with capacity 3.1m3 – 4.1yd3 bucket carries 3.3m3 – 4.3yd3
  • For a bucket with capacity 3.3m3 – 4.3yd3 bucket carries 3.5m3 – 4.6yd3
  • For optimum stability and bucket selection  always consultB A Caulkett who will be able to advise
Bucket Fill Factor bucket Selection Chart Variety of Materials B. A. Caulkett example bucket

To request a downloadable version of the chart please click here

Bucket Selection

As well as loading capacity there are other factors to consider . For example the size of rock buckets is optimised for optimal penetration and filling capability rather than the density of the material.

For more information on bucket selection please call on 01440 706429, click here to see our complete range of loading shovel attachments or to see them in action click here 

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