PTCR stands for Process Temperature Control Ring and is a ceramic temperature indicator which records the true heat treatment received by the fired product.    

Originally developed for critical firing processes for electronic ceramic components, our process temperature control rings (PTCRs) now provide easy and accurate heat measurement using for batch and continuous tunnel kilns in different atmospheres across a temperature range from 850°C to 1750°C.

Our technical service team can also provide tailored PTCR solutions for kilns that utilize vacuum, reductive or nitrogen atmospheres.