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318 Series: Dirt Wiper – Double Acting – Special – OR Energized
The 318 Series Heavy-Duty, Double-Acting wiper is one of the most popular mill-duty wipers in the steel industry.
318 Series
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.
Installation Drawing
Material Ranges
The 318 Series wiper consists of a custom-blended PTFEÂ that provides ultra-low friction and high-speed performance with minimal wear. The standard compound is PTFEÂ 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 |
| Fluroelastomer FPM | MF01 |
Temperature Ranges
MT23
MT26
°C
°F
hydraulic oil
-30…+100
hydraulic oil
-22…+212
Speed
5 m/s (16.5 ft/sec)
Speed
5 m/s (16.5 ft/sec)
hydraulic oil
-10…+200
hydraulic oil
+15…+392
polyol esters (HFD)
-10…+200
polyol esters (HFD)
+15…+392
Speed
5 m/s (16.5 ft/sec)
Speed
5 m/s (16.5 ft/sec)
CAD File
Engineered Performance
Built to Perform
The 318 Series Heavy-Duty, Double-Acting Wiper prevents contamination ingress in harsh environments, while maintaining low friction.
Benefits
- Protects the hydraulic cylinder internals
- Self-lubricating
- Works in short stroke applications
- Works in high-temperature environments
Applications
- Steel and aluminum processing
- Cold and hot strip mills
- Automatic Gauge Control cylinders
