SKY Hydraulic U-shaped Dust Seal Ring | Superior Contamination
Protection & Longevity
Engineered to shield your hydraulic cylinders from abrasive
contaminants, reduce downtime, and extend component life. The first
line of defense for your critical machinery.
Product Overview: The Ultimate Defense for Your Cylinders
The SKY Hydraulic U-shaped Dust Seal Ring is a precision-engineered
component designed as the primary sealing element in hydraulic and
pneumatic cylinders. Its robust U-cup design acts as a formidable
barrier against dirt, dust, moisture, and other abrasive particles
that cause internal damage, wear, and fluid contamination.
By effectively excluding contaminants, it protects the more
sensitive main piston seals and rod seals, significantly extending
the service life of your entire hydraulic system and maintaining
optimal performance.
Key Features & Unmatched Benefits
- Advanced Lip Geometry: Our proprietary U-shaped profile ensures a wiping and scraping
action that actively removes debris during rod retraction,
preventing ingress.
- Abrasion-Resistant Material (Sakagami RN906): Manufactured from high-grade, fortified Sakagami RN906, offering
exceptional tear strength and outstanding wear resistance, even in
the harshest environments (e.g., mining, agriculture,
construction).
- Excellent Compatibility: Performs reliably with a wide range of hydraulic fluids
(mineral-based, synthetic, HFA/HFB), water-glycol mixtures, and
lubricants.
- Easy Installation & Replacement: The simple, one-piece U-cup design allows for quick and tool-free
installation, minimizing maintenance time and costs.
- Temperature Resilience: Maintains sealing integrity and elasticity across a broad
operating temperature range.
| Parameter | Specification |
|---|
| Standard Material | Sakagami RN906 |
| Temperature Range | -10 °C to +80°C |
| Working pressure | ≤25MPA |
| Working medium | General Purpose Mineral-based Hydraulic Oil,Water,Water-Oil
Emulsion Working Fluid |
Where It Matters: Critical Applications
Our SKY U-shaped Dust Seal is trusted across industries to protect
valuable equipment:
- Heavy Machinery: Excavators, bulldozers, loaders, backhoes, crane cylinders.
- Agricultural Equipment: Tractors, combines, balers, plows, and harvester hydraulics.
- Industrial Applications: Injection molding machines, metal presses, steel mill equipment.
- Mining & Forestry: Drilling rigs, log splitters, and other high-contamination
machinery.
- Mobile Equipment: Garbage trucks, aerial work platforms, and material handlers.
Quality Assurance & Reliability
- 100% Dimensional Inspection: Every seal is laser-measured to ensure perfect conformance to
specifications.
- Rigorous Material Testing: Batch testing for hardness, tensile strength, and fluid
resistance.
- Performance Validation: Samples are tested in simulated real-world conditions for wear and
exclusion efficiency.
