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For heavy duty applications, Star offers spring-loaded "Lock & Roll" tailgate lock cylinders. These spring-loaded cylinders come in 4" and 6" bore sizes and provide the added safety of a heavy duty spring designed to keep the tailgate securely locked under the most rugged conditions.

Star "Lock & Roll" pneumatic cylinders are ideal for Tailgate Lock systems in short and long-haul trailers, dump trucks, gravel haulers and related applications. They are built for rugged performance and dependability to meet the demands of the rugged environment in which these trucks operate.
Unit of Measure


Bore Size

N/A 4 in

Stroke Length

N/A 4.65 in

Rod Diameter

N/A 3/4 in

Port Size

N/A 3/8 in

Port Thread Type

N/A National Pipe Thread (NPT)

Thread Size

N/A 1/2 in. - 20

Thread Type

N/A Unified National Fine Thread (UNF)

Working Pressure

N/A 150 psi

Industry Standards

N/A ISO 9001 (International Organization for Standardization)


Superior Reliability

N/A "Less is best" design using minimal parts for maximum reliability.

Balance of Toughness and Weight

N/A Rugged high-tensile steel rods and mounting bracket combined with an aluminum cylinder body to provide toughness where it is needed while reducing overall weight.

All Weather Performance

N/A Seals and other components selected for the best performance over a wide temperature range.

Easy To Install

N/A Valve, Clevis Designed for Fast, Easy Installation.

Additional Information

Additional Information

N/A We take our ISO 9001 certification very seriously so that you can rely on consistently excellent quality. We take pride in our customer service and our ability to reduce lead-times on production orders as well as meet promised delivery dates.