Mobile Equipment Seal Solutions by Polypac
Mobile Equipment Seal Solutions
Why Polypac
Polypac is a scientific and technical hydraulic seal manufacturer and oil seal supplier with decades of combined expertise. Since 2008 we have specialized in high-performance sealing materials and custom solutions for demanding mobile equipment applications, combining advanced production equipment with collaborative R&D partnerships.
Comprehensive Product Range
Our Mobile Equipment Seal portfolio includes hydraulic seals, oil seals, and precision O-rings in a wide range of sizes and compounds. Starting from filled PTFE variants to elastomeric options like NBR, FKM, silicone, EPDM and FFKM, Polypac supplies seals optimized for both off-the-shelf and bespoke mobile equipment needs.
Advanced Materials & Performance
We manufacture bronze-filled, carbon-filled, graphite-filled, MoS2-filled and glass-filled PTFE to deliver superior wear resistance, low friction and temperature stability. Combined with High Quality elastomers, our materials resist abrasion, chemical attack and harsh operating conditions commonly found in construction, mining, and agricultural machinery.
Custom Sealing & Rigorous Testing
Polypac’s custom rubber ring and O-ring factory spans over 10,000 square meters with advanced testing capabilities. We provide rapid prototyping, tailored compound selection and endurance testing to validate Mobile Equipment Seal performance under shock, vibration and contaminant exposure.
Applications & Operational Benefits
Designed for mobile hydraulic cylinders, steering units, axles and powertrain systems, our seals reduce leakage, extend service intervals and lower total cost of ownership. Robust sealing improves reliability in off-highway vehicles, loaders, excavators and specialty mobile platforms.
Quality Assurance & Support
With industry-leading production controls and long-term cooperation with universities and research institutes, Polypac ensures consistent quality and continuous improvement. We offer technical support, custom material development and global supply capabilities to keep your mobile equipment operating at peak performance.
Mobile Equipment Seal Display
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 can I prevent seal damage during installation?
Use Tools: Always use dedicated installation tools (e.g., picks, cones, guides). Lubricate: Always lubricate the seal and the contact surface. Protect Sharp Edges: Cover sharp threads and edges with tape or use an installation sleeve. Check the Groove: Ensure the installation groove is clean, deburred, and undamaged.
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.
When should I use a spring-energized seal instead of a standard elastomeric seal?
Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.
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.
What is the difference between a piston seal and a rod seal? | Insights by Polypac
Pan-Plug Seals: The Complete Guide to Reliable Port Sealing | Polypac
Press Machine Seals: The Ultimate Guide to Reliable Performance | Polypac
Top 10 Most Common Questions About PTFE Seals (Answered)
This comprehensive guide answers the top 10 most common questions about PTFE seals, helping engineers, technical buyers, and equipment designers understand their performance, applications, and advantages. Whether you’re evaluating sealing options for hydraulic systems, chemical processing equipment, or high-speed rotary machinery, this article provides clear, expert-level explanations to support your decision-making.
HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders
HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders
DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings
DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings
FSK-X Series Piston Seal | Enhanced Performance with Special Profile
FSK-X Series Piston Seal | Enhanced Performance with Special Profile
FSK-V Bidirectional Piston Seal for Construction and Industrial Machinery
FSK-V Bidirectional Piston Seal for Construction and Industrial Machinery
FSK-O Series Piston Seal | Low-Friction PTFE Seal for Hydraulic Cylinders
FSK-O Series Piston Seal | Low-Friction PTFE Seal for Hydraulic Cylinders
DDKK Piston Seal | Double-Lip Bidirectional U-Cup for Hydraulic Cylinders
DDKK Piston Seal | Double-Lip Bidirectional U-Cup for Hydraulic Cylinders
UKH Piston Seal Kit | Single-Acting U-Cup with Anti-Extrusion Ring
UKH Piston Seal Kit | Single-Acting U-Cup with Anti-Extrusion Ring
HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders
HPT Piston Seal | High-Performance Hydraulic Seal for Heavy-Duty Cylinders
DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings
DSJK Piston Seal Kit | Bidirectional Step Seal with Anti-Extrusion Rings
FSK-X Series Piston Seal | Enhanced Performance with Special Profile
FSK-X Series Piston Seal | Enhanced Performance with Special Profile
FSK-V Bidirectional Piston Seal for Construction and Industrial Machinery
FSK-V Bidirectional Piston Seal for Construction and Industrial Machinery
FSK-O Series Piston Seal | Low-Friction PTFE Seal for Hydraulic Cylinders
FSK-O Series Piston Seal | Low-Friction PTFE Seal for Hydraulic Cylinders
DDKK Piston Seal | Double-Lip Bidirectional U-Cup for Hydraulic Cylinders
DDKK Piston Seal | Double-Lip Bidirectional U-Cup for Hydraulic Cylinders
DPM Piston Seal | General Purpose Hydraulic and Pneumatic Seal
DPM Piston Seal | General Purpose Hydraulic and Pneumatic Seal
SPGW Piston Seal Kit | Bidirectional PTFE Seal with Anti-Extrusion Rings
SPGW Piston Seal Kit | Bidirectional PTFE Seal with Anti-Extrusion Rings
GSF-W Piston Seal Kit | Bidirectional PTFE Seal with Anti-Extrusion Rings
GSF-W Piston Seal Kit | Bidirectional PTFE Seal with Anti-Extrusion Rings
DAQ2 Piston Seal Kit | Enhanced U-Cup with Anti-Extrusion Rings
DAQ2 Piston Seal Kit | Enhanced U-Cup with Anti-Extrusion Rings
DAQ Series Piston Seal | Urethane U-Cup Kit for Heavy-Duty Applications
DAQ Series Piston Seal | Urethane U-Cup Kit for Heavy-Duty ApplicationsStay Updated with Industry Insights
Subscribe to our articles and receive the latest news, expert guidance, and technical updates directly in your E-mail.
Rest assured that your privacy is important to us, and all information provided will be handled with the utmost confidentiality.
Polypac is a trusted global supplier of high-performance sealing solutions, providing OEM & ODM services for industries worldwide.
E-mail:
Phone/WhatsApp:
© 2025 Polypac Seals. All Rights Reserved.
dms
DMS
DMS