Coordinate Measuring Machine (CMM)
Calibrate Coordinate Measuring Machines to ISO 10360 for 3D dimensional inspection.
Standards
ISO 10360-2, VDI/VDE 2617, ISO/IEC 17025
Typical Interval
12 months
Uncertainty Range
±0.002–0.005 mm
What Is Coordinate Measuring Machine (CMM)?
CMMs are the most complex dimensional measuring instruments, used in automotive, aerospace, and precision parts industries. ISO 10360 calibration verifies length measurement error (E) and probing error (R) to confirm the machine meets its specification.
Applicable Standards
Primary standards: ISO 10360-2, VDI/VDE 2617, ISO/IEC 17025
ISO/IEC 17025-accredited laboratories must maintain an unbroken traceability chain from the calibration result back to NIMT (Thailand's national metrology institute) or another internationally recognised NMI.
Typical Measurement Uncertainty
Expanded uncertainty is typically ±0.002–0.005 mm, depending on the measurement range, reference equipment used, and environmental conditions. The actual uncertainty will be stated on your calibration certificate.
Recommended Calibration Interval
A calibration interval of 12 months is generally recommended. The appropriate interval for your specific instrument depends on usage frequency, environmental exposure, and any applicable regulatory or customer requirements.
What Your Calibration Certificate Will Include
- Calibration results — instrument indication vs. reference value at each test point
- Error and expanded uncertainty (U) at k=2 (95% confidence level)
- Traceability chain to NIMT or a recognised NMI
- Environmental conditions during calibration (temperature, humidity)
- Calibration date, certificate number, and authorised signature
Find a Coordinate Measuring Machine (CMM) Calibration Lab in Thailand
ThaiLabHub lists ISO 17025-accredited calibration laboratories across Thailand. Search our directory to find labs that offer coordinate measuring machine (cmm) services, with scope details, location, and contact information.
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Frequently Asked Questions
Why is it important to calibrate a Coordinate Measuring Machine (CMM)?+
Dimensional measurements directly affect product conformance. A Coordinate Measuring Machine (CMM) that is out of tolerance can cause reject rates to rise or allow non-conforming parts to pass inspection. Calibration verifies the instrument reads within ±0.002–0.005 mm and maintains traceability per ISO 10360-2, VDI/VDE 2617, ISO/IEC 17025.
How often should a Coordinate Measuring Machine (CMM) be calibrated?+
Most Coordinate Measuring Machine (CMM)s should be calibrated every 12 months under normal operating conditions. High-use environments, harsh conditions (vibration, temperature extremes), or regulatory requirements (FDA, GMP, ISO 17025) may necessitate more frequent calibration. Always follow the manufacturer's recommended interval as a baseline and consult your lab's quality plan.
What does a Coordinate Measuring Machine (CMM) calibration certificate show?+
A calibration certificate issued under ISO/IEC 17025 includes: the instrument identification (make, model, serial number), the reference standards used (with their own traceability chain), the measurement points tested, before/after correction values, the expanded measurement uncertainty (±0.002–0.005 mm), the environmental conditions during calibration, the calibration date and next-due date, and the signature of the authorized calibration engineer. This certificate is the evidence required for audits and accreditation.
Labs offering dimensional calibration
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