Mining Vehicle & Underground Equipment calculator
Spare Parts Inventory Calculator
Estimate spare parts inventory for mining vehicle and underground equipment using production-ready inputs so teams can plan replenishment and safety stock using actual usage and lead time. On-hand divided by daily usage, then divided by safety multiplier, gives a protected days of supply.
What this calculator does
- Estimate spare parts inventory for mining vehicle and underground equipment using production-ready inputs so teams can plan replenishment and safety stock using actual usage and lead time.
- Use it when spare parts inventory in mining vehicle and underground equipment is being sized for a buffer or safety stock review.
- Turns spare parts inventory daily usage, spare parts inventory lead time, spare parts inventory safety stock into a protected days of supply for spare parts inventory in mining vehicle and underground equipment.
Formula used
- Spare parts inventory cycle stock = spare parts inventory daily usage × spare parts inventory lead time
- Required spare parts inventory = cycle stock + spare parts inventory safety stock
Inputs explained
- Spare parts inventory daily usage: Use recent consumption, demand history, service usage, production schedule, or MRP issue rate.
- Spare parts inventory lead time: Enter supplier, internal replenishment, repair, transit, or planning lead time.
- Spare parts inventory safety stock: Add buffer for demand variation, supplier risk, quality holds, downtime, or service-level requirements.
How to use the result
- Use it when spare parts inventory in mining vehicle and underground equipment is being reviewed for stockout risk.
- Lead time variability and supplier reliability are not in the formula. Adjust safety multiplier to compensate.
Common questions
- What does the spare parts inventory calculator give me? Estimate spare parts inventory for mining vehicle and underground equipment using production-ready inputs so teams can plan replenishment and safety stock using actual usage and lead time. You get a protected days of supply you can defend before quoting, scheduling, or sign-off.
- What numbers should I focus on first? spare parts inventory daily usage, spare parts inventory lead time, spare parts inventory safety stock usually move the protected days of supply most. Pull from measured mining vehicle and underground equipment runs, supplier data, and recent quotes rather than memory.
- How should I use the result? Use protected days to set the next reorder point or buffer level for mining vehicle and underground equipment.
- What can throw the result off? Confirm daily usage is a real recent average, not a quarterly mean that hides a spike.
Last reviewed 2026-05-12.