Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
PW Series PU Dust Seal for Hydraulic & Pneumatic Cylinders
Easy to install; ≤1.0m/s speed; protects cylinder internals.
A high-performance polyurethane seal tailored for hydraulic/pneumatic cylinders, built to shield internal components from dust, liquids, and contaminants—critical for equipment longevity in dusty/moist environments.
Boasts core strengths: excellent wear resistance for frequent friction, strong anti-extrusion to avoid deformation under ≤1.6MPa pressure, and low deformation for quick shape recovery. It operates reliably across -40℃ to +110℃ and ≤1.0m/s speed, with easy installation saving time.
By maintaining tight sealing and protecting cylinder parts, it ensures smooth equipment operation, reduces maintenance needs, and delivers long-term value for industrial use.
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Product Advantages
Superior Durability: Made of high-grade polyurethane, the PW Seal offers exceptional wear resistance to withstand frequent cylinder rod friction, and strong anti-extrusion performance to avoid deformation under pressure up to 1.6MPa.
Stable Performance: Operates reliably in a wide temperature range (-40℃ to +110℃) and at speeds ≤1.0m/s, with low deformation that ensures quick shape recovery and long-term sealing integrity.
Easy Installation: Designed with a user-friendly structure, it reduces installation time and labor costs, suitable for both professional technicians and on-site maintenance teams.
2. Working Principle
The PW Series PU Dust Seal acts as a "barrier" between the external environment and the cylinder interior. When installed on the cylinder rod port, its flexible polyurethane lip closely fits the rod surface—blocking dust, moisture, and external contaminants from entering the cylinder. Meanwhile, it maintains compatibility with cylinder movement, ensuring smooth rod reciprocation without compromising sealing efficiency, thus protecting internal components (e.g., pistons, seals) from abrasion or corrosion.
3. Product Details
Material: High-purity polyurethane (PU) with enhanced aging resistance, non-toxic and odorless, meeting industrial environmental standards.
Design: Precision-machined sealing lip for tight fitting; uniform thickness to ensure balanced pressure distribution; anti-cracking edge to adapt to long-term use.
Dimensions: Available in multiple standard sizes (customizable for non-standard cylinder models) to fit most hydraulic/pneumatic cylinder specifications.
4. Application Range
Ideal for equipment in dusty, moist, or harsh industrial environments, including:
Hydraulic/pneumatic cylinders in construction machinery (excavators, loaders).
Automation production lines (robotic arms, conveyor systems).
Agricultural machinery (tractors, harvesters).
Heavy-duty vehicles (trucks, engineering vehicles).
General industrial equipment (compressors, hydraulic presses).
5. FAQ
Q1: Can the PW Seal be used for high-pressure cylinders?
A1: It is optimized for pressure ≤1.6MPa. For higher-pressure applications, contact Forever Seals for customized high-pressure seal solutions.
Q2: How often should the PW Seal be replaced?
A2: Under normal working conditions (standard temperature, pressure, and low-contamination environment), it has a service life of 12–24 months. Replacement frequency may increase in extremely harsh environments.
Q3: Does Forever Seals provide custom sizes?
A3: Yes, we offer custom machining based on your cylinder drawings or sample specifications to ensure perfect compatibility.
6. Company Selling Points (Forever Seals)
15+ Years of Expertise: Specialized in R&D and production of industrial seals, with deep knowledge of hydraulic/pneumatic sealing solutions.
Quality Assurance: All products undergo strict testing (pressure resistance, temperature resistance, wear testing) before delivery, complying with ISO 9001 quality standards.
Global Service: Provide timely technical support, fast delivery (3–7 days for standard models), and after-sales service to solve installation or performance issues.
Customer-Centric: Focus on custom needs, offering one-stop sealing solutions to match different industrial application scenarios.
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