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High-Performance Type BA Rod Seals for Hydraulic Cylinders | Durable Piston Rod Seal Solutions
Introducing the Type BA Hydraulic Cylinder Rod Seal—a revolutionary advancement in sealing technology engineered for extreme conditions. Combining the high elasticity of O-rings with the wear-resistant properties of premium polyurethane, this rod seal delivers unmatched reliability in mobile equipment and heavy-duty hydraulic systems. Its unique dual-material design ensures consistent preload retention under low pressure, vacuum, or temperature fluctuations (-35°C to +90°C). Unlike conventional piston rod seals, the Type BA's O-ring core dynamically adjusts sealing force as system pressure rises, transmitting energy through compressive deformation to maintain optimal lip contact. This innovation guarantees leak-free performance even after partial wear, making it ideal for shock loads, pressure spikes (≤350 bar), and abrasive environments.
Technical Advantages & Specifications
Designed for plungers, multi-stage cylinders, forging presses, and travel equipment, the Type BA rod seal excels in critical metrics:
Pressure Range: ≤350 bar (5,076 psi)
Surface Speed: ≤0.5 m/s (19.7 in/s)
Material: Imported 93 Shore polyurethane lip + nitrile rubber O-ring (Shore hardness tailored for compression resilience)
Wear Resistance: 3x industry average, validated in high-cycle testing
Installation: Requires axial clearance (refer to H/L groove dimensions)—closed-groove fit recommended; use guides for large diameters/cross-sections.
Engineered for Critical Applications
As a premium piston rod seal, the Type BA addresses common failure points in hydraulic systems. Its O-ring ensures precise preload calibration under no-load or cold-start conditions (-35°C), eliminating micro-leakage risks. The ultra-hard polyurethane lip resists crushing and extrusion during pressure surges while maintaining forehead density at minimal friction. Compatible with ISO 6020/1 and NFPA standards, it’s widely adopted in construction machinery, mining rigs, and agricultural hydraulics where rod seals face dirt ingress, side loads, and uneven wear.
Installation & Longevity Best Practices
To maximize the hydraulic cylinder rod seal’s 10,000+ hour service life:
Avoid sharp edges during installation—use chamfered tools or tapered sleeves.
Select the largest feasible cross-sectional area for your rod diameter.
Pair with chromium-plated/polished rods (Ra ≤0.4μm).
Lubricate with phosphate-free grease compatible with NBR O-rings.
Trust the Type BA to outperform standard rod seals in durability, pressure handling, and temperature resilience. Contact us for OEM sizing charts and failure-mode analysis tailored to your equipment.
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Main Product:
Hydraulic Seals,
Rod seals ,
Piston Seals,
Wiper Seals,
Hydraulic Seals Manufacturer,
Seals Supplier
