Over time, a machine’s performance degrades due to the wear and tear of industrial use. Vibrations, repetitious movements and pollutants can have a negative impact on the accuracy of machinery; calibration readjusts it so that it operates at the same level that is identified by the dial, screen, gauge or other indicator. Read More…
Leading Manufacturers
Custom Calibration Inc.
North Haven, CT | 203-484-3707Custom Calibration Inc. specializes in on-site and laboratory calibration which will keep costly equipment downtime to a minimum and maximize your overall productivity. We have over 30 years of experience providing calibration services for mechanical, dimensional, scale, torque, humidity, and many more applications. Our company’s mission is to achieve total customer satisfaction by providing prompt, precise, tailor-made calibration solutions to fit your specific needs.

Calibration Laboratory, LLC
Merrillville, IN | 800-373-1759ISO/IEC 17025:2017 & ANSI/NCSL Z540.3 Accredited Laboratory. Electronic, dimensional, physical and thermodynamic calibrations performed onsite and in our lab. Professional ASQ Certified Calibration Technicians. We support the manufacturing and service sectors including; aerospace, automotive, chemical, electronic equipment, energy, food, industrial, machinery, medical, metal, military, nuclear, pharmaceutical, plastics, and transportation. Free local pickup and delivery. In business since 1977.

Essco Calibration Laboratory
Chelmsford, MA | 800-325-2201Essco Calibration Laboratory provides calibration services for commercial test equipment. Our capabilities include electronic, fiber optic, mechanical, temperature, pressure, mass and torque instrumentation. ISO 17025:1999 accredited by A2LA.

Sierra Instruments
Monterey, CA | 831-373-0200Sierra provides accurate calibration services for mass flow meters and controllers, insertion thermal flow meters, vortex, and ultrasonic flow meters. With more than 40 years of expertise in gas, air, or liquid flow calibration, you can count on our team to make sure your flow meter operates with efficiency and pinpoint accuracy. We believe in providing personalized and customized service, and doing everything we can to maintain credibility with our clients. To get started, contact Sierra today!

National Calibration Inc.
Scottsdale, AZ | 602-437-0114National Calibration Inc. (NCI) is a regional calibration and repair service company covering the southwestern United States and expanding into adjacent western states. NCI is based in Phoenix, Arizona and has additional service locations in Durango, Colorado; Albuquerque, New Mexico; Las Vegas, Nevada; Salt Lake City, Utah and San Antonio, Texas.

Measurement & Machine Technology
Roseville, MI | 313-530-5083Measurement & Machine Technology provides laser alignment, calibration measurement and laser calibration services on a wide variety of machine tools. We offer many years of experience and can service almost any make or model of machine. See our website for more.

Calibration is a comparison between a measurement of a known magnitude and a measurement taken from the machine that is being calibrated. The difference is observed and then the technician makes the necessary changes and adjustments before measuring again to ensure that the values are identical. The calibration process is important to many industries and companies because the accurate functioning of the machine is central to their business.
A machine that incorrectly displays the speed or applied weight may damage the operator, the product or itself. A mistake in one machining process may impact many others because equipment is often used in total systems. Machine calibration is performed on the vast majority of machines and equipment in every industry.
Machine calibration, alignment and adjustment keep production costs low because they help ensure that the machine will perform as it is supposed to. If a boring machine makes a hole that is not centered correctly, the bolt and nut that are meant to hold the pieces together will be off and then the part could be structurally unsound. In other instances, the sides of a product may not be square or the top and bottom are not parallel. In these cases, machine calibration is the solution.
A trained technician performs the calibration by attaching a device that is able to produce a correct reading to contrast the measurement of the machine. Precision step gauges, ball bars or lasers are used to perform linear accuracy, straightness and angularity checks for calibration. Because of the wide variety of machines that are used to perform hundreds of tasks, many different kinds of calibration services and calibration devices exist including subgroups like pressure or load cell calibration.
Machines can be calibrated to correct linear, rotary and trunnion positioning, axial straightness, diagonal laser performance, surface flatness, servo response, geometrical rolling, spindle squareness and more. The technician who performs the calibration usually completes a summary report and certificate to show that the machine has been calibrated to industrial and national standards.