TRD Manufacturing combines twenty-seven years of precision machining and engineering with an unmatched selection of options and modifications to deliver the highest quality customizable NFPA cylinders on the market. At TRD Manufacturing, your specials are our specialty.

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ISO 6431

Conforming to ISO 6431 standard specifications, TRD’s ISO cylinders are designed to be easily interchangeable throughout the world. These cylinders are pre-lubricated for longer, maintenance free operation and feature cushions and a magnetic piston as standard options.
  • Dimensionally interchangeable with all other manufacturer’s ISO 6431 cylinders.
  • Variety of mounting kits available.
  • Stroke lengths up to 2800mm.
  • 6 Bore sizes available: 32mm, 40mm, 50mm, 63mm, 80mm, and 100mm.
  • Custom modifications available.
  • Permanent lubrication design provides outstanding service life. Click here to learn more!


Basic ISO 6431 cylinder