The 318 Series Heavy-Duty, Double-Acting wiper is one of the most popular mill-duty wipers in the steel industry. It includes a reinforced PTFE-filled scraper ring and two energizing O-rings. The design incorporates a unique umbrella feature that wraps around the face of the cylinder to create an impenetrable barrier as well as an inner sealing lip to remove any oil film from the rod as it cycles. The O-rings individually energize the two wiper lips. In most applications, a pressure relief port between the wiper and the rod seal is recommended.
Protects the hydraulic cylinder internals
Works in short stroke applications
Works in high-temperature environments
The 318 Series wiper consists of a custom-blended PTFE that provides ultra-low friction and high-speed performance with minimal wear. The standard compound is PTFE with Bronze filler. The temperature range of the wiper can be increased by selecting an FPM energizer in place of the standard NBR energizer.
|PTFE-Bronze compound + NBR O-ring||MT23|
|PTFE-Bronze compound + FPM O-ring||MT26|
|water oil emulsions (HFA)||-||-||-||-|
|water-glycol fluids (HFC)||-||-||-||-|
|polyol esters (HFD)||-||-||-10…+200||+15…+392|
|Speed||5 m/s (16.5 ft/sec)|
Note:for other materials or fluids please contact our engineering department.