The KACO Wiper Seal 72x84x18/8 QAN NBR is specifically designed as a hydraulic rod wiper (scraper seal) for hydraulic and pneumatic cylinders. Installed at the cylinder head, this seal continuously wipes the piston rod during every extension and retraction cycle, preventing external contaminants from entering the hydraulic system.

Unlike pressure seals, the primary function of a wiper seal is to remove dust, mud, moisture, sand, metal particles, and other abrasive contaminants from the rod surface before they reach the internal sealing components. This helps protect pressure seals, guide rings, bearings, and hydraulic components while significantly extending the service life of the entire cylinder assembly.

The QAN Profile features a precision-engineered scraping lip that delivers excellent wiping efficiency while maintaining low friction against the piston rod. This minimizes rod wear while ensuring reliable contamination exclusion even under severe operating conditions.

Manufactured from premium NBR (Nitrile Butadiene Rubber), this wiper seal provides excellent resistance to:

• Hydraulic oils
• Mineral oils
• Lubricating grease
• Petroleum-based lubricants
• Abrasion
• Dirt and environmental contaminants

NBR offers excellent flexibility, wear resistance, and durability, making it one of the industry's preferred materials for hydraulic sealing applications.

With dimensions of 72 × 84 × 18/8 mm, this wiper seal is commonly installed in hydraulic cylinders, excavators, cranes, forklifts, agricultural machinery, construction equipment, hydraulic presses, lifting equipment, industrial automation systems, and OEM hydraulic machinery.

⚙️ Applications

Hydraulic cylinders

Excavators

Hydraulic cranes

Forklifts

Agricultural machinery

Construction equipment

Hydraulic presses

Material handling equipment

Industrial automation systems

OEM hydraulic equipment

🎯 Benefits

✔ Prevents contaminants from entering hydraulic systems

✔ Protects piston rods from dirt and moisture

✔ Excellent abrasion resistance

✔ Low friction operation

✔ Extends hydraulic seal life

✔ Reduces maintenance costs

✔ OEM quality replacement

✔ Long service life

✔ Reliable rod cleaning performance

🧠 Technical Insight

QAN Wiper Seal Profile

Rod Scraper Design

Premium NBR Material

High Abrasion Resistance

Excellent Dirt Exclusion

Hydraulic Cylinder Protection

Low Friction Operation

Reliable Rod Cleaning Performance

✅ Key Features

KACO Premium Quality

QAN Wiper Profile

Hydraulic Rod Scraper

Premium NBR Material

Excellent Wear Resistance

Easy Installation

OEM Replacement Ready

Long Service Life

📊 Specifications

Brand: KACO

Model: QAN

Size: 72 × 84 × 18/8 mm

Type: Hydraulic Rod Wiper Seal

Material: NBR (Nitrile Butadiene Rubber)

Profile: QAN

Construction: Precision Molded Elastomer

Seal Function: Rod Wiper / Scraper

Spring: None

Rod Diameter (ID): 72 mm

Housing Diameter (OD): 84 mm

Width: 18/8 mm

Pressure Capability: Non-Pressure Wiper

Lubrication: Hydraulic Oil Compatible

Temperature Range: -40°C to +100°C

Application Class: Hydraulic & Pneumatic Equipment

Standard: Metric Wiper Seal

🔁 Equivalent

Suitable replacement for:

SKF Hydraulic Wiper Seal

NOK Wiper Seal

Freudenberg Wiper Seal

Simrit Wiper Seal

Hallite Wiper Seal

Parker Wiper Seal

Trelleborg Wiper Seal

DICHTOMATIK Wiper Seal

HUNGER Wiper Seal

OEM Hydraulic Wiper Seal

(Always verify dimensions, profile, material, and application before ordering.)

📦 Availability

✅ In Stock

🚚 Fast Delivery Available

🌎 Worldwide Shipping Available

📦 MOQ: 1 Piece

🏭 Suitable for hydraulic cylinder repair, excavator maintenance, crane servicing, agricultural machinery maintenance, industrial hydraulic systems, and OEM replacement applications.

📲 Contact via LINE ID: dusitrea

📧 Email: sales@seal4go.com

💬 Technical support available before ordering.

🔍 Assistance available for cross-reference and equivalent part identification.