Heavy machinery diesel and production estimator.
Estimate excavator or earthmover hourly production and diesel use from bucket capacity, cycle time, fill factor and engine load.
Heavy machinery diesel and production estimator inputs
Planning estimate only. Include site downtime, material density, haul distance, swing angle, operator technique, weather and actual engine telemetry before costing a job.
Method: Hourly bucket cycles equal 3,600 divided by cycle seconds. Production is cycles × bucket capacity × fill factor; diesel use is rated engine kW × load factor × entered specific fuel use.
Inputs used: Bucket capacity = 1 m³; Cycle time = 30 seconds; Bucket fill factor = 80 %; Rated engine output = 120 kW; Average engine load = 65 %; Specific fuel consumption = 0.22 L/kWh
Assumptions: The result uses the values, units and options shown in the input snapshot.
Scope and warnings: Planning estimate only. Include site downtime, material density, haul distance, swing angle, operator technique, weather and actual engine telemetry before costing a job. Rounding and excluded real-world terms can make an external result differ.
How this heavy machinery diesel and production estimator works
Hourly bucket cycles equal 3,600 divided by cycle seconds. Production is cycles × bucket capacity × fill factor; diesel use is rated engine kW × load factor × entered specific fuel use.
A worked example
A 1 m³ bucket, 30-second cycle and 80% fill factor produces 96 m³/h before site losses.
Can this set a contractor’s production guarantee?
No. Material density, swing angle, operator skill, haul distance, downtime, weather and machine condition can materially change actual output and fuel use.
Calculations run on your device. Review your results before exporting or sharing them.
Use actual site-cycle observations
Time complete bucket cycles including the part of the work cycle you are pricing. Bucket fill factor and engine load are assumptions, so use a range if material and working conditions vary.
The result is a planning screen, not a production guarantee. Actual output depends on haul distance, operator, swing angle, density, downtime, weather and machine condition.
Published by ToolMitra — methods and editorial approach.