800 590-3367

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Thorndike Corporation is a leading design and precision manufacturer of microwave absorbing dielectrics supplying the military, commercial and industrial fields with over 60 years of continuous service. We manufacture our own line of high loss absorbers to fit hundreds of old requirements and customize parts for new designs. Our current formulas include the exact equivalents to the old standard materials used in microwave applications over the past 40 years. Our materials are used in many components such as terminations, attenuators, mode suppressors, EMI suppressors, filters, couplers, and virtually anywhere microwave frequency suppression is desired.


Our customers range from large world-wide commercial industries, military and government institutions, scientific companies, to private and small leading-edge entrepreneurs.

We manufacture based on the customer's needs; from a one-piece sample prototype and finished product to a production run exceeding one million pieces. For new designs, prototypes, or engineering upgrades, we provide the electrical and mechanical design for many types of microwave products, from system specifications.

Machine Shop

The machining capabilities at Thorndike Corporation are extensive; many of which are housed on-site in our 25,500 sq. ft. facility.

At Thorndike we mold, machine, die cut and grind raw stock materials into precise engineering prototypes or full production runs. Our machine shop includes C.N.C. lathes, C.N.C. millers, lathes, millers, surface grinding, Blanchard grinding, 10 and 00 grinding and grinders capable of machine all types of dielectrics, plastics, and silicon carbide. We also can centerless grind rod stock to almost any length and diameter. Our machine shop manufactures to print, finished components using either our own materials or yours.

Engineering Staff

Our engineering and technical staff work closely with our partner company, Engineering Specialties Service. E.S.S. supports our company in providing high quality design and complete testing services. This partnership and coordination with your technical staff allows us to very efficiently produce materials and provide services for your needs.

Our engineering department works with your designers to integrate the right material into your components. We provide the optimum shapes, materials and design for high power applications, low cost, special frequency and wide band applications. Out products are designed into coaxial, waveguide, strip and coplanar waveguide applications. Contact our technical support department for particular requirements.

Engineering Specialties Service