Excavator Rod Seal Solutions by Polypac

Excavator Rod Seal Solutions by Polypac

Overview

Polypac designs and manufactures High Quality Excavator Rod Seal products engineered for heavy-duty hydraulic cylinders. As a scientific and technical hydraulic seal manufacturer and oil seal supplier, Polypac combines decades of material science and application expertise to deliver rod seals that minimize leakage, resist abrasion, and extend service life under high pressure, contamination, and extreme temperatures.

Materials & Seal Types

We produce Excavator Rod Seal assemblies from advanced polymers and composites, including filled PTFE (bronze, carbon, graphite, MoS₂, glass), NBR, FKM, EPDM, silicone, and FFKM. Our material choices and blends are optimized for friction control, chemical resistance, and wear life—ensuring seals perform reliably across varied hydraulic fluids and operating environments.

Precision Manufacturing & Testing

Polypac's custom rubber ring and O-ring factory spans over 10,000 m² with 8,000 m² of production space and industry-leading equipment. Every Excavator Rod Seal undergoes strict dimensional control, compound verification, and dynamic testing to meet OEM tolerances and field durability requirements. Long-term collaborations with universities and research institutions reinforce our R&D and quality assurance processes.

Performance & Applications

Built for excavators, backhoes, and heavy construction machinery, our rod seals deliver exceptional sealing under shock loads, contaminated media, and rapid cycling. The Excavator Rod Seal solutions from Polypac reduce maintenance intervals, protect hydraulic systems from ingress, and improve uptime—translating to lower total cost of ownership for fleet operators.

Customization & Engineering Support

Polypac specializes in customized sealing solutions for special working conditions. From custom-profile rod seals to tailored compound formulations, our engineering team provides application assessment, prototype development, and on-site support to ensure optimal performance in your excavator systems.

Why Choose Polypac

With a heritage beginning in 2008 and continuous product expansion, Polypac is one of China’s largest dedicated seal manufacturers. Choose Polypac for Excavator Rod Seal expertise, robust material options, advanced testing, and responsive customization. Contact us to specify seals that protect your hydraulics and maximize machine reliability.

Excavator Rod Seal Display

FAQ:
What is the difference between NBR and FKM materials?

NBR (Nitrile/Buna-N): A general-purpose, cost-effective material with excellent resistance to petroleum-based oils and fuels. It has a standard temperature range of -30°C to +100°C (-22°F to +212°F). FKM (Fluoroelastomer/Viton®): A premium material with excellent resistance to high temperatures (up to 200°C+), chemicals, and oils. It is used in more severe environments but is more expensive than NBR.

What is the difference between a static seal and a dynamic seal?

A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.

How do I choose the right material for my sealing application?

Material selection depends on four key factors: Media: What fluid or gas will the seal contact? (e.g., petroleum oil, water, chemicals, steam) Temperature: What is the minimum and maximum operating temperature? Pressure: What is the system's operating pressure? Are there pressure spikes? Application: Is it a static, dynamic, or rotary seal? Example: NBR (Buna-N) is excellent for standard hydraulic oil, while FKM (Viton®) is needed for high temperatures or aggressive chemicals.

Why did my O-ring fail prematurely?

Common causes of O-ring failure include: Chemical Incompatibility: Swelling, softening, or cracking due to fluid exposure. Improper Sizing: Using an incorrect size leads to over-compression or inadequate sealing force. Abrasion: Wear and tear from rough surface finishes or contaminated fluid. Extrusion: The seal is forced into the gap between metal parts under high pressure. Installation Damage: Nicks, cuts, or twists during assembly.

Related Products
KZT Wiper & Dust Ring - Polypac

KZT Rod Seal Kit | High-Performance Piston Rod Seal with Anti-Extrusion Ring

Read More
KZT Rod Seal Kit | High-Performance Piston Rod Seal with Anti-Extrusion Ring
ORing-Kit 012 Hita sp - Polypac

Plumbing & HVAC O-Ring Kits012 HITACHI | Assortments for Water, Refrigerant & Gas Connections

Plumbing & HVAC O-Ring Kits012 HITACHI | Assortments for Water, Refrigerant & Gas Connections
ORing-Kit 011Sumt ou - Polypac

Mini O-Ring Kits-011 SUMITOM | Compact Assortments for Electronics, RC Models & Small Appliances

Mini O-Ring Kits-011 SUMITOM | Compact Assortments for Electronics, RC Models & Small Appliances
ORing-Kit 009 Hyud - Polypac

FKM O-Ring Kits | High-Temp & Chemical Resistant Seal Assortments

FKM O-Ring Kits | High-Temp & Chemical Resistant Seal Assortments
Kit008 - Polypac

Buna-N (Nitrile) O-Ring Kits-008 KOMATSU | Oil Resistant Seal Assortments for General Purpose Use

Buna-N (Nitrile) O-Ring Kits-008 KOMATSU | Oil Resistant Seal Assortments for General Purpose Use
ORing-Kit 007 Cat-A - Polypac

Metric O-Ring Kits-007 CAT-A | Precision Sized Assortments for European & Asian Machinery

Metric O-Ring Kits-007 CAT-A | Precision Sized Assortments for European & Asian Machinery
ORing-Kit GM006 - Polypac

AS568 Standard O-Ring Kits-006 CAT-GM | SAE Dash Size Assortments for Hydraulics & Pneumatics

AS568 Standard O-Ring Kits-006 CAT-GM | SAE Dash Size Assortments for Hydraulics & Pneumatics
Top Selling Products
ORing-Kit 012 Hita sp - Polypac

Plumbing & HVAC O-Ring Kits012 HITACHI | Assortments for Water, Refrigerant & Gas Connections

Plumbing & HVAC O-Ring Kits012 HITACHI | Assortments for Water, Refrigerant & Gas Connections
ORing-Kit 011Sumt ou - Polypac

Mini O-Ring Kits-011 SUMITOM | Compact Assortments for Electronics, RC Models & Small Appliances

Mini O-Ring Kits-011 SUMITOM | Compact Assortments for Electronics, RC Models & Small Appliances
ORing-Kit 009 Hyud - Polypac

FKM O-Ring Kits | High-Temp & Chemical Resistant Seal Assortments

FKM O-Ring Kits | High-Temp & Chemical Resistant Seal Assortments
Kit008 - Polypac

Buna-N (Nitrile) O-Ring Kits-008 KOMATSU | Oil Resistant Seal Assortments for General Purpose Use

Buna-N (Nitrile) O-Ring Kits-008 KOMATSU | Oil Resistant Seal Assortments for General Purpose Use
ORing-Kit 007 Cat-A - Polypac

Metric O-Ring Kits-007 CAT-A | Precision Sized Assortments for European & Asian Machinery

Metric O-Ring Kits-007 CAT-A | Precision Sized Assortments for European & Asian Machinery
ORing-Kit GM006 - Polypac

AS568 Standard O-Ring Kits-006 CAT-GM | SAE Dash Size Assortments for Hydraulics & Pneumatics

AS568 Standard O-Ring Kits-006 CAT-GM | SAE Dash Size Assortments for Hydraulics & Pneumatics
Kit005 - Polypac

O-Ring Kits-005 CAT-Joint | Complete Assortments for Industrial Repair & Maintenance

O-Ring Kits-005 CAT-Joint | Complete Assortments for Industrial Repair & Maintenance
ORing-Kit Cat4C8253 - Polypac

Nitrile & Viton O-Ring Kits CAT 4C8253 | Chemical & Temperature Resistant Seal Assortments.

Nitrile & Viton O-Ring Kits CAT 4C8253 | Chemical & Temperature Resistant Seal Assortments.
ORing-Kit Cat4C4782 - Polypac

O-Ring Kits CAT 4C4782 | Assorted Seal Kits for Repair, Maintenance & DIY Projects

O-Ring Kits CAT 4C4782 | Assorted Seal Kits for Repair, Maintenance & DIY Projects
801 TUBE - Polypac

Tube-801 | Industrial & DIY Tubing for Plumbing, Pneumatics, Hydraulics & Protection

Tube-801 | Industrial & DIY Tubing for Plumbing, Pneumatics, Hydraulics & Protection
T01 TUBE - Polypac

Tubes-T01 | Flexible & Rigid Pipe for Fluid, Air & Electrical Applications

Tubes-T01 | Flexible & Rigid Pipe for Fluid, Air & Electrical Applications
GSF - Polypac

GSF Piston Seals for Straight Cylinders | Bidirectional Seals for Ram & Plunger Cylinders

GSF Piston Seals for Straight Cylinders | Bidirectional Seals for Ram & Plunger Cylinders
Related Search
Wear Resistant U-Cup
Wear Resistant U-Cup
Power Unit Seal Replacement
Power Unit Seal Replacement
U-Cup Seal Kit
U-Cup Seal Kit
Piston Rod Seal
Piston Rod Seal
Static Conductive Seals
Static Conductive Seals
Rod seals for heavy machinery
Rod seals for heavy machinery
Dual Lip Seal Design
Dual Lip Seal Design
Cylinder Seal
Cylinder Seal
Low Friction Piston Seal
Low Friction Piston Seal
Large Clearance Rod Seal
Large Clearance Rod Seal

Stay Updated with Industry Insights

Subscribe to our articles and receive the latest news, expert guidance, and technical updates directly in your E-mail.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Rest assured that your privacy is important to us, and all information provided will be handled with the utmost confidentiality.

Contact customer service
×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Request Your Custom Sealing Solution

Fill in your requirements and our team will provide a tailored solution with a quick response.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

×

Request Your Custom Sealing Solution

Fill in your requirements and our team will provide a tailored solution with a quick response.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

×
Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

×

How Can We Help You?

Whether you need product details, technical support, or a custom solution, we’re here to assist.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.

×

📩 Looking for sealing solutions?

Start a chat and get quick answers.

Have questions about our products or services? Let’s chat and find the best solution for you.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_1188 not exceed 150 characters
Please enter your content not exceed 3000 characters

Your privacy matters to us. We handle your data securely, in compliance with international quality and safety certifications.

With over 10 years of sealing expertise, we are ready to provide you with reliable solutions.