Metal-Cased Hydraulic Wiper Seals

A metal-cased hydraulic wiper seal is a rigid press-fit scraper with an elastomer or polymer wiping element. The case anchors the seal in an open housing bore, while the working edge removes packed dirt, moisture and debris from a rod entering demanding mobile or industrial cylinders.

Key facts

Family: Hydraulic Seals
Common types: Single-lip metal case, Double-lip metal case, Rubber-bonded case, Metal scraper with energiser
Materials: Zinc-plated steel, Stainless steel, Polyurethane, NBR, Brass
Used in: Earthmoving machinery, Steel mills, Mining vehicles, Forestry equipment, Concrete pumps

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Types

Single-lip metal case
Double-lip metal case
Rubber-bonded case
Metal scraper with energiser

Materials

Applications

Earthmoving machinery
Steel mills
Mining vehicles
Forestry equipment
Concrete pumps

What to send for a quote

rod diameter
press-fit bore diameter
housing depth
case material
contamination conditions

Questions about metal-cased hydraulic wiper seals

What should I send to identify metal-cased hydraulic wiper seals?

Send rod diameter, press-fit bore diameter, housing depth, case material, contamination conditions. State whether the old part has an exposed metal outside diameter and whether its bore is an open press-fit seat. A clear photograph, drawing or readable reference can resolve details that dimensions alone do not show.

How should I select metal-cased hydraulic wiper seals?

Match case interference and corrosion resistance to the housing, then choose the wiping edge for mud, scale, ice or general dust. Confirm the mating parts and operating environment before ordering, since an apparently similar size can use a different profile, material or internal arrangement.

Last updated: 2026-10-08