Torque Calibration Services

ISO/IEC 17025 Accredited, NIST-Traceable Torque Calibration

Every torque calibration we perform is backed by a documented ISO/IEC 17025:2017 scope and full measurement uncertainty analysis. Our accredited torque calibration certificates carry traceability to national standards through NIST and are accepted for IATF 16949, ISO 13485, and AS9100 quality system audits. When accuracy is non-negotiable, accreditation is your proof.

What is torque calibration?

Torque calibration is the process of measuring a torque tool’s output against a certified reference standard and adjusting it so its readings stay within a defined tolerance. Accredited torque calibration confirms that a torque wrench, transducer, or screwdriver delivers the correct rotational force, with results traceable to national standards through NIST.

Where Accurate Torque Calibration Matters

Under- or over-torqued fasteners cause field failures, recalls, and safety incidents. Regular torque calibration keeps critical assemblies within specification.

Automotive and Aerospace

Engine bolts, wheel fasteners, and airframe joints depend on exact clamping force. Calibrated torque wrenches and transducers ensure every fastener meets specification, supporting IATF 16949 and AS9100 traceability requirements.

Medical Devices

Surgical instruments, implant assemblies, and device housings require validated torque values. Accredited torque calibration supports ISO 13485 documentation and patient-safety compliance.

Energy and Manufacturing

Pipeline flanges, turbine fasteners, and structural bolting rely on high-range torque multipliers and transducers. Calibration prevents joint failure under pressure and load.

Assembly and Production

High-volume assembly lines use torque screwdrivers and powered tools that drift with use. Scheduled torque calibration keeps production within tolerance and reduces scrap and rework.

Torque Instruments We Calibrate

Our torque calibration laboratories handle the full range of hand torque tools and torque measurement systems, in both clockwise and counter-clockwise directions.

Torque Wrenches

click, dial, beam, and digital torque wrench calibration to ISO 6789:2017

Torque Screwdrivers

adjustable and preset torque screwdriver calibration for low-range assembly.

Torque Transducers & Sensors

static and rotary torque transducer calibration for test benches and production lines.

Torque Multipliers

high-range torque multiplier calibration with verified ratio accuracy.

Torque Analyzers & Testers

calibration of torque testers, torque analyzers, and reference torque meters.

Torque Wrench Testers

verification devices used to check torque wrenches on-site.

How Our Service Works

How Our Torque Calibration Process Works

A documented, repeatable workflow from receipt to certified return.

Receive & Inspect

Incoming torque tools are logged, inspected for damage, and matched to their calibration history.

Calibrate

Instruments are calibrated across multiple set points against traceable reference standards in both directions.

Documenting

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Return

Tools are returned on your schedule, with lab, on-site, and expedited turnaround options available

Record all test results, calibration adjustments, and measurement data.

We generate a NIST-traceable calibration certificate with a detailed report on the data.

Features

Possibility of performing all types of earth measurements with a single instrument.
Earth measurements on pylons with protective earth cable connected.
Measurement of HF-earth resistance.
Measurement of earthing impedance with simulation of a 10/350 µs lightning strike impulse.
Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band (55 Hz … 15 kHz).
Sweep mode Z(f) with graphical presentation of the results.
Measurement of earth potential and step and contact voltages.
Checkbox: different self-check methods.
Measurement of earth resistance (2 / 3 / 4–pole).
Measurement of selective earth resistance (1 x clamp).
Measurement of earth resistance (2 x iron clamps).
Measurement of specific earth resistance (Wenner and Schlumberger method).
Measurement of HF-earth resistance (25 kHz).
Measurement of earth resistance of mono pylons with 10 m flex clamp.
Measurement of earth resistance of multi–leg pylons with up to four flex clamps.
Measurement of earth potential.
Measurement of step and contact voltages.
Impulse Earth measurement 10/350 µs.
Measurement of DC resistance.
Built-in help screens for referencing on site.
Support for AUTO SEQUENCE®s and visual tests for advanced users.
Bluetooth communication with PC, Android tablets and smart phones.

Applications

Power generation.
Using disconnected transmission lines in measurements.
Renewable power plants.
Hydroelectric power.
Photovoltaic installations.
Wind power generation.
Power distribution.
Earthing resistance of pylons.
Remote antenna tower earthing resistance.
Specific earth resistance measurement methods.
Earthing measurement with fall of potential method.
Hospital earthing measurement with fall of potential method.

Torque Calibration Service Levels Offered

Type of Service	Traceable	Traceable with Data	Accredited (ISO:IEC 17025:2017, Z540.3)
Calibrated to manufacturers specifications traceable to SI Units
ISO 9000 Compliant
Calibration certificates, data, maintained on secure web based tool (CDM)
Detailed calibration certificates and calibration stickers
Instrument adjustment (if found out of tolerance)
ANSI/NCSL Z540-1 compliant
Calibration Data
Logo from Accreditation body, Expanded Measurement Uncertainty
ANSI/NCSL Z540.3 compliant

Frequently Asked Questions

How often should a torque wrench be calibrated?

A torque wrench should be calibrated at least once every 12 months, or after roughly 5,000 cycles — whichever comes first. Tools used in high-volume production, safety-critical assembly, or after any drop or overload should be recalibrated more frequently to stay within tolerance and maintain ISO 6789 compliance.

Do you provide accredited torque calibration certificates?

Yes. Micro Precision issues ISO/IEC 17025:2017 accredited calibration certificates with full measurement uncertainty statements and documented NIST traceability, accepted for IATF 16949, ISO 13485, and AS9100 quality system audits.

Can you calibrate torque transducers and torque multipliers?

Yes. Our torque calibration services cover torque transducers, rotary torque sensors, torque multipliers, torque analyzers, and static and dynamic torque testers across a broad measurement range, in both clockwise and counter-clockwise directions.

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