Loader Productivity Calculator

Audit actual weighed loader deliveries, productive time and independent fuel ledger, not bucket-capacity/density/fill predicted shovel productivity. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.

Description

Observed loader productivity relates weighed deliveries to matched productive time.

Observed loader productivity relates weighed deliveries to matched productive time.^[1]

A separate fuel ledger provides litres per delivered tonne.

When to use Loader Productivity Calculator

Use this tool to calculate or review the supplied observations under the stated rules. Match completed survey or ledger observations by block, segment or stage and confirm their units and boundaries.

How to use Loader Productivity Calculator and understand its results

Match completed survey or ledger observations by block, segment or stage and confirm their units and boundaries.
Enter observedLoaderWeighedPayloadTonnes, observedMatchedProductiveMinutes, observedCycleMachineFuelLitres, using the field meanings and rules below, then run the tool.
Read observedLoaderTonnesProductiveHour, observedFuelLitresPerDeliveredTonne. Inspect nested result fields where present, and review unknown records separately from known matches.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
observedLoaderWeighedPayloadTonnes	Observed loader weighed payload tonnes	list of number	Required
observedMatchedProductiveMinutes	Observed matched productive minutes	list of number	Required
observedCycleMachineFuelLitres	Observed cycle machine fuel litres	list of number	Required

Use aligned payload tonnes≥0, productive minutes>0 and fuel litres≥0. Require positive total payload. Return 60×total tonnes/total minutes and total fuel/total tonnes. These are ratios of totals, not averages of per-cycle ratios.

tonnesPerHour=60Σpayload/Σminutes; litresPerTonne=Σfuel/Σpayload

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
observedLoaderTonnesProductiveHour	Observed loader tonnes productive hour	number
observedFuelLitresPerDeliveredTonne	Observed fuel litres per delivered tonne	number

json

{
  "input": {
    "observedLoaderWeighedPayloadTonnes": [
      2,
      3
    ],
    "observedMatchedProductiveMinutes": [
      1,
      2
    ],
    "observedCycleMachineFuelLitres": [
      0.5,
      1
    ]
  },
  "output": {
    "observedLoaderTonnesProductiveHour": 100,
    "observedFuelLitresPerDeliveredTonne": 0.3
  }
}

Limitations and assumptions

Units, ledger boundaries, survey interpretation and model applicability must be independently established. These summaries do not assign reserve/resource classifications or establish support adequacy, ventilation safety or an operating setting.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above.

Alternative or Complementary methods

For a related step, use Loader Bucket Capacity Calculator: Payload, loose density and fill factor can infer an equivalent heaped loader-bucket volume. For a complementary comparison, use Shovel Bucket Fill Factor Calculator: Bucket fill compares observed payload volume with a matched heaped bucket volume.

References

Loader Productivity Calculator — tool.io

Similar or alternative tools

Loader Bucket Capacity Calculator
Payload, loose density and fill factor can infer an equivalent heaped loader-bucket volume.
Shovel Bucket Fill Factor Calculator
Bucket fill compares observed payload volume with a matched heaped bucket volume.