Expert Machine Tool Calibration Services in Washington

Machine tool calibration is the process of verifying and adjusting a CNC machine's positioning accuracy against known standards. It involves measuring how precisely the machine moves along its axes, checking for geometric errors, and ensuring that programmed movements match actual machine motion. Calibration helps identify wear, alignment issues, and accuracy drift before they affect part quality.

The primary standards for machine tool calibration are ISO 230-2 for linear axes and ASME B5.54 for performance evaluation. These standards define testing methods, environmental conditions, and acceptance criteria. At Sarkinen Calibrating, we provide measurements traceable to NIST and International Standards with accuracy to 1.0 parts per million, exceeding the required 10:1 ratio for proper calibration.

Calibration frequency depends on machine usage, part tolerances, and production requirements. New machines should be calibrated immediately after installation to verify specifications while under warranty. Production machines typically benefit from annual calibration, though high-precision operations may require more frequent verification. Ballbar testing can provide quick health checks between full calibrations.

A comprehensive laser interferometer calibration of a 3-axis machine typically takes 4-8 hours depending on machine size and travel distance. Ballbar testing is much faster, usually completed in 1-2 hours. Surface plate verification and electronic leveling vary based on size and complexity. We work efficiently to minimize your production downtime while ensuring thorough, accurate measurements.

Sarkinen Calibrating provides machine tool calibration services throughout Washington, with primary coverage in SW Washington and the Portland metro area. We serve manufacturing facilities across the state with faster response times than out-of-area providers. We also accommodate customers beyond our primary service area when needed.

Calibration identifies accuracy problems but doesn't automatically fix them. Our detailed reports show exactly where errors exist and what's causing them—whether mechanical wear, alignment issues, or electronic problems. Based on results, we recommend specific corrections such as compensation adjustments, mechanical repairs, or component replacement. Many issues can be corrected through software compensation without mechanical work.

Yes, we provide comprehensive calibration certificates with all services. Our certificates include complete measurement data, NIST traceability documentation, test conditions, equipment specifications, and comparison to acceptance criteria. These certificates satisfy quality audit requirements, customer documentation requests, and AS9100 or ISO certification standards.

If measurements exceed acceptable tolerances, we provide a detailed report showing specific problem areas and recommended corrections. We'll explain whether issues can be resolved through compensation adjustments, mechanical repairs, or component replacement. Our goal is to give you clear options and help restore your machine to specification with minimal production impact and cost.