Flatness Verification
Precise flatness measurement using advanced metrology equipment and Moody Plot analysis to verify surface plate accuracy and identify wear patterns that could affect measurement reliability.
Maintain inspection accuracy and measurement confidence with professional surface plate calibration services. Sarkinen Calibrating provides expert leveling, flatness verification, and Moody Plot analysis to ensure your surface plates deliver reliable reference planes for precision work. As surface plates wear over time, unchecked degradation can compromise part quality and measurement repeatability. Our NIST-traceable calibration services help manufacturing facilities maintain consistent inspection results and prevent costly accuracy issues before they impact production.
Comprehensive calibration solutions to maintain surface plate accuracy and extend equipment service life.
Precise flatness measurement using advanced metrology equipment and Moody Plot analysis to verify surface plate accuracy and identify wear patterns that could affect measurement reliability.
Professional leveling services to ensure your surface plate provides a true reference plane, eliminating angular errors that compromise inspection accuracy and part layout work.
Comprehensive evaluation of surface plate condition, including wear analysis, surface integrity checks, and recommendations for maintenance or replacement to maintain measurement confidence.
Full certification documentation with measurements traceable to NIST and International Standards, providing proof of accuracy for quality audits and customer requirements.
Verification of measurement repeatability across the entire surface plate to ensure consistent inspection results and reliable reference plane performance for critical quality control operations.
Convenient on-site calibration services that minimize equipment downtime and eliminate the costs and risks associated with transporting heavy surface plates to calibration facilities.
Initial Condition Assessment
We begin with a thorough visual inspection and preliminary evaluation of your surface plate's condition, checking for obvious wear, damage, or contamination that could affect calibration results. This assessment helps us understand the plate's service history and current state.
Precision Leveling & Setup
Flatness Measurement & Moody Plot Analysis
Documentation & Certification
Manufacturing facilities across Portland and SW Washington trust our surface plate calibration expertise.
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
"I have worked with Mr Sarkinen on a job in Portland He is a Highly Skilled, Knowledgable Professional. I would definitely recomend him for all your Machine Tool Calibration Metrics. Sincerely Curtis Page Naughtellis CNC Service"
"As plant manager at Triad, I am always looking for ways of testing and measuring the condition of our large machines. Our outside repair tech suggested that I have Sarkinen Calibrating run their Ball Bar Test on all of our machines to show if we had any critical wear issues..."
"This guy knows his stuff. Would definately recommend! Friendly good people!"
We deliver precision calibration services with faster response times and comprehensive solutions.
Faster response times serving Portland OR and SW Washington than out-of-area providers, minimizing your equipment downtime.
All measurements traceable to NIST and International Standards, providing verified accuracy and audit-ready documentation.
Founded by a former machine operator who understands real-world production challenges and calibration impact on quality.
Beyond basic calibration, we evaluate condition and provide actionable insights to maintain consistent inspection accuracy.
Led by professionals who understand precision manufacturing.
Founder
Larry brings a unique perspective to calibration services, having started his career as a machine operator before founding Sarkinen Calibrating. This hands-on production background gives him deep insight into how calibration directly impacts manufacturing quality and efficiency—it's never been just equipment maintenance for Larry. He understands the real-world challenges that production teams face when surface plates drift out of specification or measurement tools lose accuracy. Larry built Sarkinen Calibrating on the principle that calibration services should provide comprehensive solutions that increase production quality and minimize unexpected downtime. His approach combines technical precision with practical operational knowledge, helping Portland OR and SW Washington manufacturing facilities maintain the accuracy they need to deliver consistent results. Larry's commitment to customer service and his focus on eliminating production disruptions have made Sarkinen Calibrating the trusted local choice for precision calibration services.
How are surface plates calibrated?
Surface plates are calibrated through a multi-step process that includes precision leveling, comprehensive flatness measurement across the entire surface, and data analysis using Moody Plot methodology. Measurements are taken at specific grid points to identify high and low spots, wear patterns, and overall deviation from flatness specifications. Results are compared against industry standards and documented with NIST-traceable certification.
What does surface calibration do?
How often should surface plates be calibrated?
What is a Moody Plot and why is it important?
Can you calibrate surface plates on-site?
What documentation do you provide after calibration?
How do I know when my surface plate needs calibration?
What happens if my surface plate fails calibration?
Our calibration experts can assess your needs and recommend the right solution.
Serving manufacturing facilities throughout Portland OR and SW Washington with fast, reliable on-site calibration.
Portland & SW Washington
Primary Service Area
Faster Than Out-of-Area
Response Time
On-Site Calibration
Service Coverage
Contact us to schedule on-site service with minimal downtime.
All calibrations traceable to national standards
Consistently rated excellent by local manufacturers
Trusted by Portland area production facilities
Get fast, accurate calibration service with minimal downtime. Fill out the form and we'll respond promptly to discuss your needs.
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at
For immediate assistance, feel free to give us a direct call at (360) 907-3058 You can also send us a quick email at