Why this matters
Machine hour rate should reflect the cost base assigned to the machine divided by a clearly defined number of productive hours. Using nominal shift hours instead of realistic productive hours can understate the true cost.
A practical decision framework
Start with verified project data: the product, process flow, required quality, target good output, operating hours and site conditions. Separate confirmed facts from assumptions, and use the same basis when comparing alternatives.
Key inputs
Define the annual cost pool assigned to the machine and divide it by a realistic productive-hour base. Keep available, planned and productive hours clearly separated.
What to include in the calculation or review
Use current supplier data and actual factory assumptions. Include the items that materially affect the decision, document exclusions, and test conservative, base and growth scenarios instead of relying on one optimistic number.
Common mistakes
Common errors include using theoretical capacity instead of saleable output, ignoring setup and ramp-up, omitting utilities or lifecycle costs, mixing assumptions with verified facts, and comparing alternatives on different scopes.
Before making the decision
Review the model with production, technical and finance stakeholders. Update variable prices, tariffs, financing terms and supplier quotations at the date of decision. For machinery, confirm the actual model manual, supply scope and acceptance criteria.
Frequently asked questions
Should one number be used as the final answer? No. Industrial decisions are stronger when the main assumptions are tested as ranges and scenarios.
Can SAKKARY MACHINERY help? SAKKARY MACHINERY can support the technical side of process definition, machinery selection, capacity planning, installation, training and lifecycle support based on verified project requirements.
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