TRD manufactures cylinders that are renowned for their durability, high-quality construction and long-lasting performance. TRD maintains an industry leading delivery schedule--standard delivery in 2-3 days. Every cylinder is proudly made-to-order in the USA with the highest quality components, and all product lines have a wide variety of options and modifications available.

Learn more about our industry leading delivery schedule.

Hollow Center

  • Hollow center or through hole cylinders can be provided in several designs.
  • Double Rod End Cylinders- Are typically gun-drilled and can have internal or external rod threads, complicated machining or plain rod ends. Typical uses are for filling applications (liquid or gas), test fixtures or charging stations. Some customers have added internal shaft bearings and drive shafts that rotate polishing heads while the cylinder provides a variable polishing force depending on supply pressure to the cylinder.
  • Large through holes- Can be provided in large bore cylinders. TRD has designed several hollow-center, triple rod cylinders with single rod ends and also double rod end models. The larger through hole will allow for greater design flexibility and use.

Stainless steel cylinder with extra larger rod, gun drilled