Made In USA Quality That Makes A Difference!

Why Choose A Greenco or Duramaster Air Cylinder?

Greenco Mfg/Duramaster Cylinders was founded in 1970 and has been continuously engaged in the design and manufacture of quality industrial pneumatic products for over 45 years.

Greenco/Duramaster consists of several related divisions that make use of a common manufacturing facility, machine shop and corporate headquarters, all based in Tampa, FL.

Greenco manufactures pneumatic (air) cable cylinders. The cable cylinder is a mechanical device that uses the power of compressed air or hydraulic fluid to produce linear motion. Unlike a conventional cylinder, which makes use of a rod extending from the cylinder, the cable cylinder is a specialty product that moves a load on a coated steel cable that extends the length of the cylinder.

At Duramaster Cylinders, we believe that a high quality cylinder can make all the difference at an economical price. That is why we are known for manufacturing high quality, long lasting designs that stand the test of time. We know that there are many brands of rod cylinders to choose from, but they are not all created equal. For example, it is standard on our NFPA rod cylinders to provide the long-style 660 bronze bushing which provides maximum wear resistance for increased durability and lowest friction. Some other manufacturers use ductile iron or even plastic bushings. Another high quality standard, our NFPA cylinders include graphite impregnated wear bands and extra wide pistons for added support. Some manufacturers do not include wear bands. Another unique quality, our headcaps are machined from 6061-T6 aluminum for high strength, low weight, and then black anodized to resist corrosion and oxidation. Other manufacturers use die cast heads, which can have low strength issues, and porosity problems. Our bushing retainer plate is removable with standard allen wrenches (hex keys). This allows the bushing to be replaced easily, without disassembling the cylinder. Some manufacturers retain their bushing with snap rings, or do not have removable bushings at all. Our Full Duramount™ series provides internal tie rod nuts for maximum space savings and interchangeability of mounting styles. Other manufacturers have exposed tie rod nuts which can create space problems, and can prevent interchanging mounts.

Duramaster’s product line offers a variety of NFPA rod cylinders including NFPA interchangeable tie rod cylinders, NFPA round pneumatic air cylinders and also a complete line of double-acting pneumatic cylinders. Our air-over-oil cylinders create smooth, predictable motion by converting pneumatic pressure into hydraulic pressure. At Duramaster, we take pride in the fact that all of our products are MADE IN THE USA. In addition, we are ISO 9001:2008 certified (Certification No. 50471494). Customer satisfaction is our priority and we are committed to continuous improvement of services and products. If you are looking for a high quality cylinder, contact Duramaster Cylinders today 813-882-0040.

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