Quick Answer
Prism Calibration Centre (NABL CC-2480) at Vatva GIDC, Ahmedabad is the top NABL-certified torque wrench calibration lab in Gujarat. We calibrate click-type, beam-type, digital, and hydraulic torque wrenches per ISO 6789-1:2017, with NABL certificates accepted by IATF 16949, ISO 9001, and aerospace auditors.
Key Takeaways
- Torque wrench calibration per ISO 6789-1:2017 and ISO 6789-2:2017 standards.
- Covers click-type, beam-type, dial-type, digital, and hydraulic torque wrenches (1 N·m to 5000 N·m).
- NABL CC-2480 certificates accepted for IATF 16949, ISO 9001, and aerospace audits.
- Same-day and urgent calibration available for automotive production lines.
- Calibration stickers, tags, and calibration history maintained for 3 years.
Types of Torque Tools We Calibrate
- Click-type torque wrenches (most common in automotive)
- Beam-type torque wrenches
- Digital electronic torque wrenches
- Dial (indicating) torque wrenches
- Hydraulic torque wrenches (high-torque, oil & gas)
- Torque screwdrivers (electronics assembly)
- Torque multipliers
- Torque transducers and sensors
Calibration Standards for Torque Tools
| Standard | Application |
|---|---|
| ISO 6789-1:2017 | Torque tool design and quality conformance |
| ISO 6789-2:2017 | Calibration and determination of measurement uncertainty |
| DIN EN ISO 6789 | European equivalent |
| ASME B107.28 | US standard for adjustable torque tools |
| VDI/VDE 2583 | Torque screwdriver calibration |
How We Calibrate Torque Wrenches
Pre-calibration Check
Visual inspection, cleaning, and functional check. Identify range and resolution of the tool.
Conditioning Cycles
Per ISO 6789-2, apply 5 conditioning cycles at 100% capacity before taking measurements.
Measurement at 5 Points
Measure at 20%, 40%, 60%, 80%, 100% of rated capacity in clockwise and counter-clockwise directions.
Uncertainty Calculation
Calculate expanded measurement uncertainty (k=2, 95% confidence level) and compare with manufacturer specs.
NABL Certificate Issue
Issue NABL-accredited certificate with as-found / as-left data, uncertainty, and traceability statement.
Serving Gujarat's Automotive Belt
Gujarat is India's automotive capital, home to Tata Motors (Sanand), Suzuki (Manesar), Ford (Sanand), Honda, Hero MotoCorp, and hundreds of Tier 1–2 suppliers across Rajkot, Ahmedabad, and Gandhinagar. All automotive OEMs require IATF 16949 compliance, which mandates torque tool calibration by NABL-accredited labs.
Frequently Asked Questions
How often should torque wrenches be calibrated?
ISO 6789-2:2017 recommends calibration every 12 months or after 5,000 operations, whichever comes first. Automotive plants with high-volume production often calibrate every 6 months.
What is the torque calibration range at Prism?
Prism calibrates torque tools from 0.1 N·m to 5000 N·m, covering hand tools, pneumatic tools, and hydraulic torque wrenches.
Is Prism's torque calibration accepted for IATF 16949 audits?
Yes. Prism's NABL CC-2480 certificates are accepted by all IATF 16949, ISO 9001, and aerospace auditors as they meet ISO/IEC 17025:2017 requirements.
Can Prism calibrate torque wrenches on-site at our Rajkot factory?
Yes. Prism offers on-site torque wrench calibration services across Gujarat including Rajkot, Surat, Vadodara, and Ahmedabad.
What information is on a Prism NABL torque calibration certificate?
The certificate includes: equipment details (make, model, serial, range), calibration date and due date, measurement results at 5 points, expanded uncertainty, traceability statement, NABL accreditation logo, and authorized signatory.
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