Corporate Profile

With more than 50 years of manufacturing precision machined parts for the OEM market, the Duny Group has gained a reputation as being a team of experts in the use of multiple types of automatic screw machines. With our state-of-the-art manufacturing equipment and full-service manufacturing facilities, we manufacture a wide variety of parts in an efficient and timely manner to meet the needs of our clients.

With three separate manufacturing facilities—Duny Machine, Herculock, and Rudy’s Machine —the Duny Group is uniquely positioned to provide our clients with the highest quality parts available. Our team is committed to offering exceptional customer service by maintaining communication throughout the manufacturing process and delivering the quality products needed for today’s markets.

Our Divisions​

The Duny Group has the engineering and precision manufacturing capabilities to meet the high demands of the OEM market.

Duny Machine

Duny Machine was established in 1970. Our 20,000 sq ft plant has more than 50 automatic screw machines, including Davenports, New Britains, and Wickmans, and a complete tooling facility on the premises. Duny Machine specializes in the efficient manufacturing of precision parts for a range of industries, including the automotive and aerospace industries. With more than five decades of manufacturing expertise, Duny Machine can ensure uninterrupted and efficient production of your parts from small production runs to million-piece runs.


Since 1944, Herculock has provided guaranteed metal locking services in Canada and the United States, offering repairs both on-site and in our state-of-the-art facility. Herculock of Niagara Falls specializes in repairing cracked or broken metal castings by securing the two disparate pieces of metal back together using a process called metal locking or metal stitching. Metal locking is ideal for repair because the process uses no heat, resulting in a repaired metal casting that is free of any distortion or shrinking.

Rudy’s Machine

Rudy’s Machine began in 1967 as a tool and die shop for local industries, and primarily uses CNC and other conventional machines to produce precision parts to customer specifications. Our dedicated team of machinists and technicians supply high-quality parts to meet the needs of the steel making, material handling, machinery manufacturing, health care, food, and hydraulic industries.

Special Capabilities

At the Duny Group, our focus on continued growth and commitment to serving the growing needs of our clients has enabled us to increase our capabilities beyond precision machined components. We also offer various forms of grinding, honing, and welding applications. Our capabilities include:

  • Prototype
  • Broaching
  • Custom Material Bending
  • ID Burnishing
  • Milling Work
  • Assembly Work
  • Custom Machining
  • CNC Grinding
  • Production Lathe
  • CAD/CAM Programming
  • Fixturing
  • Honing
  • Welding
  • Heat Treating
  • Plating

Contact Us to Get Started on Your Precision Part Project

At the Duny Group, we supply a variety of precision parts and services to meet the needs of our clients. Our expertise, combined with our commitment to customer service, ensures that our clients are consistently supplied with the high-quality products they need. To learn more about the Duny Group and the services we offer, contact us today and LET DUNY DO IT!


Duny is proud to celebrate 50 years in business!

That’s 50 years of experience providing precision component manufacturing excellence to our valued customers.

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