Refractories, Furnace Linings & Foundry Consumables worked example

Ramming Mix Usage at 98% installation transfer efficiency: a worked example

Push installation transfer efficiency up to 98% and the picture changes. This example computes every intermediate figure at that operating point. Use it when ramming mix usage in refractories, furnace linings and foundry consumables needs a buy quantity for the next refractories, furnace linings and foundry consumables run and you do not want to short the line.

The inputs for this scenario

  • Lining volume or surface area to cover: 500 units (unchanged)
  • Ramming mix consumption per unit of coverage: 0.08 units (unchanged)
  • Installation transfer efficiency (yield): 98 % (raised for this scenario; the documented default is 85)

Working through the calculation

  • Applying the documented formula (Required ramming mix usage = covered amount × use per unit ÷ transfer efficiency) to the inputs above produces each figure below.
  • At this operating point the engine returns 40.82 units for required quantity, the number this scenario is built around.
  • At this operating point the engine returns 40 units for theoretical amount.
  • At this operating point the engine returns 0.82 units for loss allowance.
  • At this operating point the engine returns 98 % for efficiency.

How this compares with the baseline

  • Against the tool's baseline example, where installation transfer efficiency sits at 85% and the headline result is 47.06 units, this scenario comes in 13.27% below the baseline at 40.82 units.
  • It divides the theoretical mix needed (coverage x consumption per unit) by the transfer efficiency to give the real quantity to order, then isolates the loss allowance. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Required quantity: 40.82 units (headline result)
  • Theoretical amount: 40 units
  • Loss allowance: 0.82 units
  • Efficiency: 98 %

Run it with your numbers

  • Every input above is editable in the live Ramming Mix Usage calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.