A wiper seal excludes contaminants from entering the cylinder. Along with direct wear to the rod seal, external contamination accessing a hydraulic system can have disastrous consequences. Contaminated hydraulic fluid can quickly clog filters, wear out seals and damage machined surfaces. However, a wiper can induce a pressure difference between it and the main rod seal, causing either the wiper or rod seal to be ejected from its groove.
High Performance Seals offers many different types of wipers, from relatively low pressure solid nitrile up to heavy-duty metal clad ones. Several are also available in a variety of materials depending on what fluid type or operating conditions the wiper experiences.
These wipers retrofit MS-33675 grooves. They’re normally numbered for the MS-28776 design guide. More
High Performance Seals offers four styles of D wipers, which offer Improved performance without wiper gland modifications. More
This wiper's lip is energized by a stainless steel spring for heavy-duty applications and scraping environments. More
This combination wiper/rod seal can eliminate the need for a separate wiper and a rod seal, reducing costs. More