The Hercules Fluid Power Group (“HFPG”) supplies to the Aftermarket through the Hercules and HKX businesses and to Industrial OEM’s (“Original Equipment Manufacturers”) through the RT Dygert, All Seals and J Royal businesses.

Aftermarket Businesses


Hercules is the core Aftermarket business based in Clearwater, Florida and provides a next day delivery service throughout the US for seals and seal kits used in the repair of hydraulic cylinders. The products are used in a range of heavy mobile machinery applications, including heavy construction equipment, dump trucks and refuse collection, lift trucks and fork lifts.

Hercules also supplies a range of replacement tie-rod cylinders to a similar customer base. The US business also services Central and South American and other selected markets through in‑country sub‑distributors.

Hercules in Canada offers a similar range of products from its branch operations located in the provinces of Ontario and Quebec.

HKX is based near Seattle, Washington State and supplies hydraulic kits used in the installation of attachments on excavators. HKX’s colour coded kit systems, with "lego-logic" instructions, substantially reduce the time and engineering expertise required to install attachments.

Read more about Hercules US, Hercules CanadaHKX

Aftermarket locations: US (Clearwater, FL; Monroe, WA), Canada (Barrie, ON; Montreal, QC)


Industrial OEM businesses

The Industrial OEM businesses in North America supply seals, gaskets, O-rings and custom moulded and machined parts to a range of Industrial OEM customers.

The businesses work closely with customers to select the most appropriate seal design, material and manufacturer for the application, provide technical support and guidance during the product development process and deliver the logistics capabilities to supply from inventory to support small to medium sized production runs.

J Royal has facilities in North Carolina and Alabama, supplying seals, O‑rings and custom moulded and machined parts to a range of Industrial OEM customers, cylinder manufacturers and sub‑distributors. J Royal has a strong established presence in the Eastern states.  HFPG owns 10% of J Royal Precision Products Inc. (“JRPP”), a related supplier to J Royal located near Shanghai in China.

RT Dygert supplies Seals, O-rings and custom moulded and machined parts to a range of Industrial OEM customers, cylinder manufacturers and sub distributors. RT Dygert has a strong established position in the Mid-Western and Northern states in the US.

All Seals is a long established supplier of O-rings and custom manufactured parts to Industrial OEM customers across a range of specialised applications in aerospace, medical, filtration and general manufacturing industries. All Seals has a strong position in the important Californian market and the adjacent South Western states. In April 2017, All Seals acquired PSP, a small bolt-on acquisition based in Denver, Colorado which supplies O-rings and customer moulded products. 

Read more about the Hercules OEM Group

Hercules OEM Group locations: US (Winston-Salem, NC; Tallassee, AL; Minneapolis, MN; Chicago, IL; Seattle, WA; Lake Forest, CA; Denver, CO), China (Shanghai)