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BS Series Dual-Lip Piston Rod Seals | Heavy-Duty Hydraulic Cylinder Seal Solutions
Introducing the BS Series Hydraulic Cylinder Rod Seal—a next-generation dual-lip design engineered to redefine reliability in extreme industrial environments. Combining two precision-molded sealing lips with a tightly fitted outer diameter, this rod seal eliminates dry friction by maintaining a consistent lubricant layer between its lips. Ideal for heavy-duty mobile machinery and static hydraulic systems, the BS series delivers performance comparable to expensive tandem seal configurations—at a fraction of the cost. Crafted from advanced polyurethane, it excels in high-pressure (≤400 bar), high-wear applications while adhering to ISO 5597/1 and ISO 3320 international standards.
Unmatched Technical Performance
Designed to outperform conventional piston rod seals, the BS Series features:
Pressure Range: ≤400 bar (5,802 psi)
Temperature Tolerance: -35°C to +90°C
Surface Speed: ≤0.5 m/s (19.7 in/s)
Material: 93 Shore imported polyurethane (enhanced heat/hydrolysis resistance, 15% lower compression deformation vs. standard PU)
Media Compatibility: Mineral oil-based hydraulic fluids
Key Advantages: 50% longer service life in abrasive environments, near-zero air ingress, and shock load resilience.
Built for Extreme Conditions
The BS Hydraulic Cylinder Rod Seal thrives where others fail. Its dual-lip design creates a self-sustaining lubrication zone, ensuring optimal sealing even under partial pressure or sudden load changes. Widely adopted in mining excavators, port cranes, and hydraulic presses, this seal prevents external contamination while resisting extrusion under 400 bar spikes. The upgraded polyurethane formulation retains elasticity at -35°C, outperforming competitors in cold-start scenarios, and reduces downtime by 30% in high-vibration equipment.
Installation & Material Innovation
To maximize performance:
Axial Clearance: Follow H/L column specifications to accommodate thermal expansion.
Groove Compatibility: Designed for ISO-standard grooves—avoid sharp edges during installation; use tapered sleeves for damage-free fitting.
Surface Prep: Pair with chrome-plated rods (surface roughness ≤0.3μm Ra) for optimal lip contact.
The BS seal’s proprietary polyurethane blend addresses common industry pain points:
Heat Resistance: Withstands 90°C continuous operation (20% improvement over generic PU).
Hydrolysis Stability: Resists moisture degradation in humid environments.
Compression Recovery: 98% shape retention after 10,000 pressure cycles.
Why Choose the BS Series?
Replace bulky tandem seals with a single, cost-effective solution that exceeds ISO benchmarks. Backed by a 24-month performance guarantee, it’s the go-to rod seal for OEMs and maintenance teams prioritizing durability. Request free sample kits or technical datasheets today!
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Main Product:
Hydraulic Seals,
Rod seals,
Piston Seals,
Wiper Seals ,
Hydraulic Seals Manufacturer,
Seals Supplier
