Permaculture Earthworks

Excavator Cost Calculator

There are a lot of factors that influence the efficiency of excavators. The most important factor is going to be an efficient operator who knows how to minimize cycle times for machines without sacrificing load volumes. To following chart offers the average cycle time for common Caterpillar excavators that you are likely to encounter.

Caterpillar Cycle Time Estimating Chart
ModelAverage cycle time (seconds)
30713.2
311B12.6
312B/BL12.6
315B/BL12.6
32013.8

You will also need to find the heaped bucket capacity for the bucket on your machine. There is a single rating for this which is then modified using a fill factor based on soil type.

Fill factor by soil type
Soil typeFill factor
Clay80 ~ 90%
Loam100 ~ 110%
Sand95 ~ 110%

For the calculator you will need:

Input numbers only.

Result