Free tool
How Critical Is This Equipment, Really?
Assess equipment criticality across 6 weighted factors and get a concrete maintenance strategy recommendation.
Result: equipment criticality
Recommended maintenance approach
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Request a maintenance strategy consultationHow the calculation works
A machine is rated on six factors on a 1–5 scale: impact on production (25%), safety (20%), environment (10%), failure probability and history (15%), repair duration and complexity (15%), and redundancy and spares (15%). The result is a score of 0–100 and a class: A (80+, critical), B (60+, important), C (40+, normal) or D (below 40, low priority), each with a matching maintenance strategy recommendation.
Example: if all factors are rated 5, the result is 100/100, class A; if all are 1, the result is 20/100, class D.
Frequently asked questions
Why assess equipment criticality?
To direct maintenance time and money to the machines whose failure harms production and safety the most.
How often should the assessment be updated?
At least once a year and after major changes in production or the equipment fleet.
Is it suitable for the whole factory?
Assess machines one by one and compare the results. This gives you a priority order for the fleet.
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Methodology and limitations
Methodology based on standard industry calculations and Maintest’s practical industrial experience. This tool provides a planning estimate and does not replace project-specific engineering assessment. This tool is a screening and planning aid developed by Maintest. Results are indicative and depend entirely on the figures and answers you enter. They are not an engineering calculation, a safety assessment or a substitute for the manufacturer’s instructions, applicable standards or professional judgement. Weights, benchmarks and default values are Maintest planning assumptions and can be adjusted to your situation. Do not use this tool as the only basis for safety-critical decisions such as lifting, electrical work or lockout procedures.
Tool version 1.0 · Updated October 2026
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