Hospital Equipment & Clinical Furniture worked example
Spare Parts Inventory with average daily spare parts consumption of 30 units / day: a worked example in hospital equipment & clinical furniture
What does the result look like when average daily spare parts consumption reaches 30 units / day? The full calculation is worked below with real intermediate numbers. Use it when setting reorder points for spare parts used in hospital equipment production or when reviewing spare parts inventory adequacy for a service contract.
The inputs for this scenario
- Average daily spare parts consumption (casters, actuators, gas struts): 30 units / day (raised for this scenario; the documented default is 12)
- Warehouse or supplier lead time: 14 days (unchanged)
- Safety stock for demand variation: 50 units (unchanged)
Working through the calculation
- Applying the documented formula (Cycle stock = average daily consumption × warehouse or supplier lead time) to the inputs above produces each figure below.
- At this operating point the engine returns 0.04 days for protected days of supply, the number this scenario is built around.
- At this operating point the engine returns 2.14 days for unprotected days.
- At this operating point the engine returns 30 pieces for inventory.
- At this operating point the engine returns 14 pieces / day for daily usage.
How this compares with the baseline
- Against the tool's baseline example, where average daily spare parts consumption sits at 12 units / day and the headline result is 0.02 days, this scenario comes in 150% above the baseline at 0.04 days.
- A figure at this level is achievable when average daily spare parts consumption is genuinely sustained, not just peaked for a shift. It assumes steady average daily consumption and a fixed lead time — for parts with lumpy, seasonal, or recall-driven demand spikes you need a statistical safety-stock model, not a flat buffer.
Results at a glance
- Protected days of supply: 0.04 days (headline result)
- Unprotected days: 2.14 days
- Inventory: 30 pieces
- Daily usage: 14 pieces / day
Run it with your numbers
- Every input above is editable in the live Spare Parts Inventory calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.