Industrial Rubber Spares

Wiper Seals are a type of wiper seal used in hydraulic and pneumatic cylinders, specifically designed to remove dirt, debris, and contaminants from the rod as it moves in and out of the cylinder. These seals are crucial for protecting the internal sealing components, such as rod seals, from wear and damage caused by external contaminants. 

DHS green wiper seals are widely available in numerous sizes, typically made from durable polyurethane (PU) material. The specific dimensions are identified by their inner diameter (ID), outer diameter (OD), and thickness/height. 

• Material: Most commonly made from Polyurethane (PU), which provides high abrasion resistance and durability.
• Color: The standard color for these PU seals is often green or blue.
• Hardness: They typically have a hardness rating of 90-93 Shore A, making them suitable for heavy-duty applications.
• Application: Used in hydraulic cylinders for industrial machinery.
• Design: The DHS profile is a double-lip wiper with a slightly rounded sealing edge to effectively scrape off dirt while leaving a residual oil film for lubrication. 

• Material: Polyurethane (PU) / TPU
• Hardness: Typically 90 to 93 Shore A
• Temperature Range: Generally around -35°C to +100°C (specifics may vary by product variant)
• Max Speed: Around 1 m/s
• Media Compatibility: Suitable for hydraulic oils (mineral oil-based) 

• Material: Polyurethane (PU) / TPU
• Hardness: Typically 90 to 93 Shore A
• Temperature Range: Generally around -35°C to +100°C (specifics may vary by product variant)
• Max Speed: Around 1 m/s
• Media Compatibility: Suitable for hydraulic oils (mineral oil-based) 

• Function: The primary function of the SOG GA Metal Wiper seal is dirt exclusion in hydraulic and pneumatic systems, protecting internal components from contaminants.
• Material: It typically features a metal core or retaining ring (often iron or mild steel) combined with a flexible sealing lip, which is commonly made of nitrile rubber (NBR) or polyurethane (PU).
• Design: These are generally single-lip, round, press-in style seals designed for open housings.
• Application: Common applications include various types of industrial machinery like excavators, lift trucks, and hydraulic presses.
• Brand: "SOG" is the brand name, and "GA" is the specific model or type designation for this style of wiper seal. 

• Contamination Elimination: The primary function is to scrape external contaminants from the reciprocating ram rod as it retracts into the cylinder, thus preventing damage to the rod, cylinder walls, and other seals.
• Material: The seal is made from polyurethane (PU), a durable polymer known for its high lubricity and resilience. This material contributes to low friction and a long operational life.
• Double-Edged (Optional): Some designs, often called "double-edged wipers", may feature a secondary lip to capture any small amount of oil that might have bypassed the main seal, while also removing bonded contaminants from the rod surface.
• Application: These seals are widely used in hydraulic machines for industrial use. 

• Temperature Range: Typically suitable for temperatures ranging from approximately -40°C to +100°C (-40°F to +212°F).
• Maximum Pressure: Capable of handling pressures up to ≤40 MPA (megapascals).
• Maximum Speed: Designed to operate effectively at speeds of up to ≤0.5 m/s. 

Hydro Motor Wipers are premium sealing components designed to protect hydraulic motors and cylinders from dirt, dust, moisture, and other contaminants. By wiping off external impurities from the rod surface, these wipers prevent damage to primary seals and extend the life of hydraulic systems. Manufactured from high-quality elastomer materials, Hydro Motor Wipers ensure smooth operation, reduced wear, and enhanced efficiency in hydraulic machinery.

Available Sizes (Outer Diameter × Inner Diameter × Thickness):

• 27×33×3 mm

• 28×35×3 mm

• 28×35×4 mm

• 35×42×3 mm

• 35×42×4 mm

• 45×52×4 mm

• 60×67×4 mm

Key Features:

• Durable elastomer material for long-lasting performance

• Protects rods from dirt, dust, and moisture

• Increases seal life and prevents leakage

• Low friction design for smooth operation

• Suitable for hydraulic motors, cylinders, and industrial machinery

Usage/Application:

• Hydraulic motors and cylinders

• Automotive and industrial hydraulic systems

• Heavy-duty machinery requiring effective contamination protection

Packaging Type: Box / Bulk (as per order requirement)

The W17 Wiper Seal is a high-performance sealing solution designed to prevent the entry of dirt, dust, and other contaminants into hydraulic and pneumatic cylinders. Engineered for durability and reliability, it ensures smooth operation of rods and shafts while maintaining optimal performance under varying conditions.

Material:

• Seal Material: NBR (Nitrile Butadiene Rubber) / PU (Polyurethane)

• Color: Black

• Hardness: 70–90 Shore A (depending on application)

Design & Functionality:

• Seal Type: Single-lip wiper seal

• Function: Wipes off dirt, dust, and moisture from the rod surface to protect internal components

• Temperature Range: -30°C to +100°C (for NBR), up to +120°C (for PU)

• Operating Pressure: Suitable for standard hydraulic and pneumatic systems

• Friction: Low friction design for smooth rod movement

Additional Details:

• Outer Diameter Material: Reinforced PTFE/Nylon for smooth sliding (optional)

• Application: Hydraulic cylinders, pneumatic cylinders, and other reciprocating machinery

• Finish: Smooth surface finish to prevent wear on rods

• Country of Origin: India / OEM available

Advantages:

• High wear resistance for long service life

• Excellent contamination protection

• Easy installation and maintenance

• Compatible with hydraulic fluids and lubricants

• Available in all standard sizes to suit various applications

A DKB PU Metal Wiper is a type of wiper seal used in hydraulic and pneumatic systems, combining the durability of Polyurethane (PU) and the strength of metal to protect against contamination and ensure the longevity of the system. The DKB designation generally refers to a specific model or series from a manufacturer, often used for high-demand applications where harsh conditions and high pressures are involved. These wiper seals are designed to prevent dirt, dust, and other contaminants from entering the cylinder and causing damage to internal seals, which is crucial for the smooth operation of the system.

• Material: The wiping lip is commonly made from Nitrile Butadiene Rubber (NBR), typically rated at 90 Shore A hardness, which offers excellent resistance to oils, hydraulic fluids, and abrasion. The outer case is usually made of carbon steel or stainless steel for secure, press-fit installation in open housings.
• Design: It has a dual-lip (G-type) profile that aggressively cleans the piston rod during both extension and retraction, effectively scraping away contaminants. The metal case ensures a firm fit in the assembly hole.
• Performance: According to sources like eBay sellers TTO, these seals deliver outstanding endurance under difficult operating conditions and help reduce maintenance costs by protecting internal components.
• Application: They are widely used in industrial applications, including agricultural equipment, construction machinery (excavators, loaders), mining equipment, and hydraulic presses.