Rod wiper seals are critical sealing components used in hydraulic cylinders and industrial equipment to prevent contaminants from entering the hydraulic system. Installed at the outer end of the cylinder, rod wipers remove dirt, dust, water, and other particles from the piston rod during operation.

Key Features

Effective Contaminant Protection: Rod wiper seals remove dust, dirt, and moisture from the piston rod, preventing contamination of the hydraulic system.
High Abrasion Resistance: Polyurethane material provides excellent wear resistance under repeated rod movement.
Durable Scraping Edge: The precision-designed edge ensures effective cleaning of the rod surface without damaging it.
Oil and Chemical Resistance: PU materials maintain stable performance when exposed to hydraulic oils and industrial fluids.
Long Service Life: Polyurethane rod wipers offer longer lifespan compared with conventional rubber seals.
Easy Installation: Designed for simple installation and replacement in standard hydraulic cylinder grooves.

Technical Specifications

Item	Specification
Material	Polyurethane (PU)
Hardness	85 – 95 Shore A
Inner Diameter	Custom
Outer Diameter	Custom
Temperature Range	-30°C to 100°C
Color	Blue, Yellow, Red, Custom
Type	Single Lip / Double Lip

Applications

Rod wiper seals are widely used in hydraulic systems and industrial equipment.

Common applications include:

Hydraulic cylinders
Construction machinery
Agricultural equipment
Mining machinery
Industrial automation equipment
Material handling systems
Heavy-duty mechanical equipment

They help maintain clean hydraulic systems and reliable equipment operation.

Advantages of Polyurethane Rod Wiper Seals

Feature	Polyurethane Wiper Seal	Rubber Wiper Seal
Abrasion Resistance	Excellent	Moderate
Service Life	Long	Medium
Scraping Performance	Excellent	Good
Oil Resistance	Excellent	Good
Durability	High	Medium

Polyurethane rod wipers provide superior protection and durability for hydraulic cylinder systems.

Custom Rod Wiper Seal Solutions

We provide custom polyurethane rod wiper seals designed for different hydraulic cylinder requirements.

Customization options include:

Custom inner and outer diameters
Different lip structures
Various hardness levels
Molded polyurethane sealing components
Production based on drawings or samples

Our engineering team can help develop sealing solutions tailored to your equipment specifications.

FAQ

What is a rod wiper seal?

A rod wiper seal is a sealing component installed on hydraulic cylinders to remove contaminants from the piston rod and protect the internal sealing system.

Why use polyurethane rod wiper seals?

Polyurethane provides superior wear resistance, flexibility, and longer service life compared with standard rubber sealing materials.

Where are rod wiper seals used?

They are commonly used in hydraulic cylinders, construction machinery, agricultural equipment, and industrial automation systems.

Can rod wiper seals be customized?

Yes. Rod wiper seals can be manufactured in various sizes, lip structures, and hardness levels according to application requirements.