Identifying and stocking critical spare parts

At a glance

Type
Guide
Industry
Mechanical engineering

Not every spare part has to be in your own store, but some do. A simple assessment shows which parts prevent downtime and which can be sourced when needed.

Neatly labelled spare part boxes on shelves in a tidy maintenance store room, labels without readable text
AI-generated illustration

Three questions per part

First: what happens if the part fails? If the whole line stops, the part is more critical than on a plant with redundancy. Second: how long does replacement take? Long lead times favour a stock. Third: how often does the part fail in practice?

Parts with a high failure impact and long replacement time belong in stock. Parts with a low impact and short sourcing time do not. For the range in between, framework agreements or a shared stock for identical parts in several machines help.

How to prepare a stocking request

  • list of critical parts with type and maker
  • number of installed parts and desired stock quantity
  • group identical parts across several machines
  • consider shelf life, for example of elastomers and batteries
  • delivery date or call-off in partial quantities

Read more

How sourcing works

Parts database mechanical engineering

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