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Specialty Product Technologies (SPT, legal entity Dynapar) is a group of core technology companies based in Elizabethtown, NC consisting of 6 product brands. SPT designs, manufactures and markets innovative products, services and technologies to the industrial automation marketplace.

Every SPT brand is best in class within its respective segment and built on a strong foundation of performance and reliability over many decades of experience. Our brands provide essential components to the daily lives of millions around the world.


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Explore Our World-Class Brands

Heavy Duty Limit Switches

Heavy Duty and Nuclear Qualified Switches and Solenoids for Extreme Environments 

Vacuum Contactors & Starters | Joslyn Clark

Vaccum Contactors and Motor Starting Solutions for a High-Tech World

Variable Transformer

Variable voltage transformers, power conditioning and power quality solutions


A Name You Can Count On: Electronic, Electromechanical & Mechanical Counters  

Straight Sleeve Bearings | Thomson Nyliner

Low Cost, Long Lasting Plastic Bearing and Custom Polymer Components 


The Most Reliable Industrial Preset, Percentage and Multi-Function Timers on the Market