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About us

Since 1883, Duff-Norton has earned a reputation for reliable, high quality products that meet the industrial lifting, positioning and transfer needs of our worldwide customers. Both our standard and custom designed products are subjected to the same rigorous testing throughout the design process to assure maximum performance and quality. We have been ISO 9001 registered since 1994, and practice and conduct lean initiatives regularly.

Together, with our sister companies CM Engineered Products GmbH (brands Pfaff-silberblau and Alltec Antriebstechnik) and Duff-Norton Europe, we are the largest manufacture of motion technology products in the world, providing both motion technology and systems technology solutions. 

Motion Technology products

We pioneered the modern day Screw Jacks and many of the features others have often tried to imitate, such as Anti-Backlash, Ball Screw, and close mounted motorized and controlled options.

  • Our Linear Actuators and Electric Cylinder product lines are broad, comprehensive and packaged with the latest features.
  • Our large selection of Acme and Ball Screws & Nuts are uniquely and completely packaged with modern day drives and control components.
  • Our Rotary Unions product line offers first class media transfer functionality across a very broad application range.

All of our products are widely used throughout all the process and related industries such as metals, chemicals, mining, material handling, agriculture, satellite, defense, and many more. Should you have further questions regarding how our products are used please contact us. Nowhere else will you receive the un-paralleled customer and application support offered from Duff Norton. 

System Technology products

Including the design and manufacture of a wide range of equipment for Rail Maintenance, Steel and Aluminum, and many more vertical markets. Our Project Management teams specialize in providing "turn key" solutions combining our traditional motion technology products, customized mounting platforms, fully functioning controls and panels, and complete installation services upon demand. There's nowhere else you can go and receive first class service and support for your operations needs.

ISO9000 Certification

Duff-Norton's Quality Management System has been verified and fulfils the standards for the ISO9000 certification. You can view our certificate here.

Duff-Norton Awarded Environmental Excellence Award

Charlotte, North Carolina, June 2016
Duff-Norton has been selected as a recipient of the 2015 Charlotte Water Gold Award for Environmental Excellence in Industry. The Environmental Management Division-System Protection regulates the discharge of pollutants that enter into the municipal sewer system. Duff-Norton is subject to this program and is required to obtain wastewater permits which contain limits based upon the pollutants discharged. To be a recipient of the Environmental Excellence Award, Duff-Norton has complied with permit requirements, cooperated fully with System Protection, and has taken a proactive and innovative approach to protecting the quality of our water. This Award represents a team effort of the employees at Duff-Norton to provide good environmental stewardship to their community.


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Guide to choosing the right linear actuator
Guide to choosing the right linear actuator