Automotive & Auto Components

The automotive industry demands the highest standards of measurement accuracy, repeatability, and traceability across every stage of the manufacturing process. Every fastener, bushing, spring, weld joint, and crimped terminal must meet strict quality specifications — and the instruments verifying them must be dependable, calibrated, and audit-ready.

JRAGRAU has been a trusted partner to automotive OEMs and Tier-1 component suppliers across India for over 24 years. Our load cells, torque sensors, testing machines, and calibration systems are built to withstand the rigors of production-floor environments while delivering the accuracy required for R&D laboratories.

From bush stiffness characterization to torque wrench calibration, from spring rate verification to crimping force monitoring — our instruments and Special Purpose Machines (SPMs) cover the full spectrum of automotive testing requirements.

Automotive component testing requires precise force and torque measurement across a wide range of applications. JRAGRAU provides complete testing solutions for:

Bush Stiffness Testing — Rubber and polyurethane bushings are critical to vehicle ride quality, NVH performance, and suspension durability. Our servo-controlled Bush Stiffness Testing Machines measure axial, radial, torsional, and conical stiffness with integrated load cells and displacement sensors, capturing viscoelastic behavior at frequencies up to 50 Hz.

Spring Testing — Every suspension spring, valve spring, and clutch spring must meet exacting rate and free-length specifications. JRAGRAU's Computerized Spring Testing Machines measure spring rate, free length, solid height force, and parallelism — with automated data logging for batch testing on production lines.

Crimping Force Monitoring — Wire harness terminals must be crimped within a tight force window. Our Crimping Force Testing Machine uses high-speed load cells to capture the complete crimp force profile in milliseconds, ensuring connection reliability.

Every critical fastener in an automobile — from cylinder head bolts to wheel nuts — must be tightened to a specified torque value. JRAGRAU provides the instruments to verify, calibrate, and monitor fastener tightening:

Torque Wrench Calibration — Our calibration systems verify torque wrench accuracy per ISO 6789, with ranges from 1 Nm to 2000 Nm. Factory and production-floor models are available.

Rotary Torque & Angle Measurement — For torque-to-yield (TTY) fastening strategies, both torque and angle must be captured simultaneously. Our Rotary Torque & Angle Measuring System provides real-time dual-parameter capture.

End-of-Line Verification — Torque verification systems installed on the production floor allow operators to verify tool accuracy between shifts without sending tools to the calibration lab. This reduces downtime and ensures every fastener is tightened correctly.

Automotive R&D laboratories rely on Universal Testing Machines (UTMs) to characterize the mechanical properties of metals, polymers, composites, and elastomers used in vehicle construction.

JRAGRAU's Computerized Tensile Testing Machines deliver programmable test sequences with integrated data logging for: • Tensile strength and elongation of sheet metals (IS 1608 / ISO 6892) • Flexural and compression testing of polymer components • Peel and adhesion testing of bonded assemblies • Weld strength verification of resistance and MIG/TIG welds

Our Dual Range Tensile Testing Machine allows both high-force metal testing and low-force polymer testing on a single frame, maximizing laboratory efficiency.