Kaman announces ThreadChecker™ with inspection capabilities 31 October 2022

The Measuring Division of Kaman Precision Products has announced the availability of its improved ThreadChecker™, a teachable eddy current inspection tool, widely used for thread detection, material sorting, plating presence, as well as the absence of heat treatment.

Kaman explains that this line of non-contact application specific sensors provides rugged, reliable verification of thread presence or absence in nearly any electrically conductive material. Any physical property difference that relates to material conductivity is also readily detected. Kaman points out these sensors are available from stock and ready to ship immediately.

The ThreadChecker™ is ideal for use in any automated inspection process in the fastener industry. Consisting of a single electronics module compatible with any probe/material combination, the ThreadChecker™ can check threads regardless of part cleanliness, reducing the cost of implementation.

With Kaman’s proven eddy current technology at its core, the ThreadChecker™ is designed specifically for in-die use. It features four internal probes, ranging from 4mm – 10mm and two external probes, 6mm and 8mm. Available with a DIN rail mounting option, ThreadChecker™ is CE-compliant and features IP-67 rated probes and electronics.

The ThreadChecker™ is also available with both switched and analogue outputs. With the switched output option, the sensor is wired to a PLC or other controller and programmed to alarm when no thread is detected. As an alternative, users can monitor the analogue voltage and programme the PLC or other control device with limits suitable for the application. 

Deputy Editor

Claire Aldridge Deputy Editor t: +44 (0) 1727 743 889


Having spent a decade in the fastener industry experiencing every facet – from steel mills, fastener manufacturers, wholesalers, distributors, as well as machinery builders and plating + coating companies, Claire has developed an in-depth knowledge of all things fasteners.

Alongside visiting numerous companies, exhibitions and conferences around the world, Claire has also interviewed high profile figures – focusing on key topics impacting the sector and making sure readers stay up to date with the latest developments within the industry.