Rod Wiper Seals: Essential Protection for Hydraulic and Pneumatic Systems
Rod wiper seals, also known as scraper seals or excluders, are critical components in hydraulic and pneumatic cylinders. Their primary function is to prevent contaminants such as dirt, dust, moisture, and debris from entering the system while retaining lubrication on the rod. By maintaining a clean rod surface, they extend the life of other seals (e.g., rod seals and buffer seals) and ensure smooth, efficient operation.
Key Features:
Contaminant Exclusion: Wiper seals remove particles from the rod as it retracts, protecting internal components.
Material Options: Common materials include polyurethane (PU), nitrile rubber (NBR), and PTFE, chosen for durability and compatibility with operating conditions.
Design Variants: Single-lipped, double-lipped, or multi-stage designs for varying contamination levels.
High-Pressure & Speed Compatibility: Some wipers are engineered to withstand extreme pressures and dynamic movements.
Applications:
Hydraulic cylinders (construction, agriculture, industrial machinery)
Pneumatic systems (automation, robotics)
Marine and off-road equipment (harsh environments)
Installation & Maintenance:
Proper installation is crucial-ensure the sealing lip faces outward to scrape contaminants effectively. Regular inspection prevents seal wear and system failure.
By selecting the right rod wiper seal, you enhance system reliability, reduce downtime, and minimize maintenance costs.
Kintowe K842 rod wiper seals are designed to prevent the ingress of external particles and moisture into the cylinder. The profile has been specially developed for harsh environments, in particular the longwall mining industry.
The special feature is the flap on wiping which covers the gland housing, preventing the water/slurry trap so common with conventional wipers and thus ingress of contamination around the outside of the wiper. The internal ribs on the inside diameter prevent the possibility of pressure trapping between the gland seal and the wiper and ensure correct support and guidance of the wiping lip, even in cases of high eccentricity as can occur between the outer stage gland and the inner cylinder of a roof support leg.
Product Consultation Contact：vanessa@kintowe.com