Quick Answer
Prism Calibration Centre (NABL CC-2480) provides NABL-certified torque wrench calibration in Ahmedabad per ISO 6789-2:2017. We calibrate click-type, beam, digital, and hydraulic torque wrenches from 0.1 N·m to 5000 N·m with same-day turnaround available.
Key Takeaways
- Torque wrench calibration per ISO 6789-2:2017 — the internationally recognised standard.
- Range: 0.1 N·m (micro torque screwdrivers) to 5000 N·m (hydraulic wrenches).
- Same-day torque calibration available for Ahmedabad factories with production-critical tools.
- Calibration certificates accepted by IATF 16949, ISO 9001, and aerospace auditors (AS9100).
- Prism also calibrates torque multipliers, torque transducers, and click-type indicators.
Why Torque Wrench Calibration Matters for Ahmedabad Industries
A torque wrench that applies 20% more torque than specified can stretch or snap a bolt; one that applies 20% less leaves a joint under-tightened. For Ahmedabad's automotive, aerospace, pressure vessel, and structural steel industries, improper torque is a safety hazard and a quality failure. IATF 16949 (automotive) and AS9100 (aerospace) both mandate annual torque tool calibration from NABL-accredited labs.
Torque Wrench Calibration at Prism Ahmedabad
Incoming Check
Inspect the tool for damage, contamination, and setting mechanism function. Record make, model, serial, and rated range.
Conditioning Cycles
Apply 5 conditioning cycles at maximum torque per ISO 6789-2 to relieve internal stresses before measurement.
5-Point Measurement
Measure at 20%, 40%, 60%, 80%, 100% of rated torque in clockwise direction (and counter-clockwise for bi-directional tools).
Repeatability
Repeat the measurement at each set point 3 times (minimum 5 times for Type I click-type) and calculate mean and standard deviation.
Pass/Fail Decision
Compare results against ISO 6789-1 accuracy class (Class I: ±4%, Class II: ±6%). Tools outside tolerance are flagged for repair or replacement.
Certificate
Issue NABL certificate with measurement data, expanded uncertainty, pass/fail status, and next calibration due date.
Ahmedabad Industries We Serve for Torque Calibration
- Automotive OEM suppliers (Sanand, Changodar auto cluster)
- Aerospace & defence contractors (Ahmedabad / Gandhinagar)
- Pressure vessel and heat exchanger manufacturers (Vatva GIDC)
- Structural steel fabricators
- Railway workshops and maintenance facilities
- Wind turbine assembly and service (Gujarat wind belt)
- Oil & gas pipeline maintenance contractors
Frequently Asked Questions
Can I get same-day torque wrench calibration in Ahmedabad?
Yes. Prism offers same-day torque wrench calibration at Vatva GIDC for clients who drop instruments before 10 AM. Certificate dispatch by 6 PM.
What is the torque calibration range at Prism Ahmedabad?
Prism calibrates torque tools from 0.1 N·m to 5000 N·m, covering all hand-operated torque wrenches, torque screwdrivers, and hydraulic torque wrenches.
Is Prism's torque calibration certificate valid for IATF 16949 audits?
Yes. Prism's NABL CC-2480 torque calibration certificates are accepted by all IATF 16949, ISO 9001, and AS9100 auditors.
Does Prism provide calibration stickers for torque wrenches?
Yes. Calibration stickers with the instrument tag number, calibration date, next due date, and Prism NABL logo are affixed to every calibrated torque tool.
How many torque wrenches can Prism calibrate per day?
Prism can handle 50+ torque wrench calibrations per day. For large batch orders (100+ tools) from automotive plants, pre-scheduled batch processing is recommended.
Written by
Er. Parthiv Kinariwala
Managing Director · Prism Calibration Centre · NABL CC-2480 · Ahmedabad
Er. Parthiv Kinariwala founded Prism Calibration Centre in 2004 and has over 20 years of hands-on experience in calibration engineering, NABL accreditation, and industrial compliance. His team performs 10,000+ calibrations annually from the Vatva GIDC laboratory, serving 5000+ industries across Gujarat.
Prism Calibration Centre — Vatva GIDC, Ahmedabad
Prism Calibration Centre
F-101, Rudraksh Complex 2, Phase 3, GIDC Vatva, Near Jasoda Nagar Cross Road, Ahmedabad — 382445, Gujarat, India
Phone: +91 98245 26444
Email: info@prismcalibration.com
NABL: CC-2480 · ISO/IEC 17025:2017
Hours: Mon–Sat, 9:00 AM – 7:00 PM