Precision CNC turning demands machine accuracy you can trust. Sarkinen Calibrating delivers NIST-traceable calibration services that verify your turning centers maintain sub-micron precision across every axis. From verification of new equipment to ongoing performance monitoring, we eliminate unexpected downtime and ensure your turned components meet spec—every time. Our comprehensive approach goes beyond maintenance to optimize your entire machining operation.
Comprehensive calibration solutions ensuring your turning centers deliver consistent, traceable accuracy for precision component manufacturing.
Verify positioning accuracy, repeatability, and straightness of Z-axis and X-axis travel using Renishaw Laser Interferometry with 1.0 ppm precision. NIST-traceable measurements identify alignment errors affecting turned part geometry before they impact production quality.
Ensure C-axis and live tooling rotary components maintain angular positioning accuracy using Renishaw's Rotary Calibration System. Detect encoder drift, mechanical wear, and alignment issues that compromise multi-axis turning operations.
Evaluate turning center health with Renishaw QC20-W Ballbar testing. Quickly identify backlash, servo mismatch, and axis reversal errors affecting circularity. Ideal for validating service work or troubleshooting accuracy problems on turning equipment.
Correct pitch and roll errors using electronic leveling to ensure proper spindle alignment and bed geometry. Essential after installation, relocation, or when foundation settling affects turning accuracy and surface finish quality.
Maintain inspection accuracy with flatness verification and Moody Plot analysis of granite surface plates used for turned part layout and measurement. Prevent measurement drift that compromises quality control processes.
Hands-on training for operators and programmers covering turning center setup, calibration data interpretation, and best practices that maximize machine capability. Tailored to your equipment and skill level for immediate production improvements.
CNC turning centers operate in microns—and even minor axis deviations multiply across diameter calculations and thread pitches. Our calibration services provide the measurement accuracy and documentation manufacturers need to trust their equipment. With NIST-traceable precision to 1.0 parts per million, we verify that your turning centers can deliver the tight tolerances critical components demand. Portland-area manufacturers benefit from faster response times and a service approach rooted in real machine shop experience, ensuring minimal disruption to production schedules.
Leading manufacturers trust Sarkinen Calibrating to keep their turning operations running accurately with minimal downtime.
"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 more than calibration reports—we provide solutions that increase production quality and eliminate costly surprises.
Measurements accurate to 1.0 ppm exceed the 10:1 ratio requirement, providing documentation you can trust and customers accept.
Founded by a former machine operator, we understand production realities. Our service focuses on practical solutions that improve efficiency, not just equipment maintenance.
Serving Portland OR and SW Washington with response times significantly faster than out-of-area providers. We minimize downtime when your turning centers need attention.
From laser interferometry to training programs, we address the full range of factors affecting turning center accuracy and operator capability.
Experience from the shop floor to calibration expertise.
Founder
Larry's journey from machine operator to calibration specialist gives Sarkinen Calibrating a unique perspective on precision manufacturing. He started on the shop floor, operating CNC equipment and understanding firsthand how machine accuracy affects production quality, efficiency, and operator confidence. That experience shaped his approach to calibration—looking beyond equipment maintenance to provide comprehensive solutions that improve machining operations. Larry built Sarkinen Calibrating on the principle that calibration should eliminate unexpected downtime and give manufacturers proof their machines can deliver as promised. His operator background means he understands production schedules, the cost of rejected parts, and why fast, reliable service matters. Today, he applies that same practical focus to serving Portland OR and SW Washington manufacturers, helping them achieve highly predictable operations with minimal disruption.
How often should CNC turning centers be calibrated?
Most manufacturers calibrate annually, but high-precision operations or machines experiencing accuracy issues may benefit from semi-annual or quarterly calibration. New machines should be calibrated immediately after installation to verify they meet specifications while under warranty.
What accuracy level can I expect from your calibration services?
How long does typical turning center calibration take?
Can you calibrate turning centers at our facility?
What documentation do you provide after calibration?
Do you service areas outside Portland and SW Washington?
How much does CNC turning center calibration cost?
Can calibration identify why my turned parts are out of tolerance?
Our team is ready to discuss your turning center accuracy needs and recommend the right calibration approach.
Fast, local calibration service with NIST-traceable accuracy for precision turning operations throughout the Pacific Northwest.
Portland OR & SW Washington
Primary Service Area
5-Star Rated
Service Quality
Faster Than Regional Competitors
Response Time
Get faster response times and expert service from your local precision calibration specialist.
All calibrations fully traceable to national standards
Consistently excellent service reviews on Google
Including Triad Speakers and other precision operations
Fill out the form below and we'll contact you promptly to discuss your calibration needs and schedule service at your convenience.
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