Grading Productivity — Volume Per Hour (7299)

Capacity and Productivity Calculator

Capacity and productivity answer different questions. Nominal bowl capacity describes a planning load; production depends on load factor, cycle time, soil condition and the volume state being measured.

Before moving material

Identify capacity, realistic load factor and a complete cycle.

Receiving operation and checks

Use the estimate for planning and revise it from observations. Record whether the result is loose, bank or compacted volume.

The calculator produces an operating estimate, not a Dugong performance guarantee.

Area and Depth Volume Calculator

An area-and-depth volume estimate is useful for a uniform layer. Length multiplied by width multiplied by average depth gives geometric volume; irregular terrain needs more detailed measurement.

Before moving material

Confirm dimensions and the volume state used.

Receiving operation and checks

Reconcile the estimate with material suitability and placement requirements. For example, 100 by 300 metres at an average 0.01 metre change gives 300 cubic metres.

That example does not establish the volume caused by changing an entire bay's slope.

Bank, Loose and Compacted Volumes

Bank, loose and compacted volumes describe material in different states. A surveyed excavation volume, a carried scraper load and an accepted fill volume should not be compared as if they were identical.

Before moving material

Choose the volume basis for quantities and production estimates.

Receiving operation and checks

Reconcile placed quantities with survey and material records. Keep nominal capacity, load factor and compacted quantity separate.

No universal soil bulking or shrinkage factor is assumed.

Record the job inputs

Use this checklist to turn the scenario into a specific brief. Retain the design revision and agree who accepts each completed layer.

• Existing condition, extent and the reason for intervention
• Required finished purpose, receiving operation and acceptance criteria
• Material type, layer role, source, receiving area and volume state
• Reference levels, datum, survey method and issued design revision
• Available tractor, implement configuration, travel route and turning space
• Checks before work, stopping points and evidence retained at handover

Checklist ticks apply only while this page is open. Include the completed brief in your project records.

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