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Product Details:
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| The Delivery Way: | By Sea, By Air, By Express | Wiper Seal Brand: | TecThane |
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| Pressure Resistance: | Up To 5000 PSI | Customizable: | Yes |
| Rod Seal Type: | Dark Blue Brand | Packaging Options: | Individual Or Bulk Packaging |
| Colour: | Black | Seal Configuration: | Rod Seal, Piston Seal, Wiper Seal |
| Color: | Black, Brown, Blue (depending On Material) | Flexibility: | Flexible |
| Pressurerating: | Up To 3500 PSI | Package Detail: | Bag Or Box |
| Key Word: | Rubber O Ring | Customization: | Available In Custom Sizes And Materials |
| Packing: | Paper Box |
7S4571 7S-4571 Hydraulic Cylinder Loader Lift Tift Steering Seal Kit NBR Black Oring Seal
Version 1 (NBR Black O-Ring & Sealing Integrity Focus)
The NBR black O-ring seal configuration featuring 7S4571 is engineered for excavator loader lift and tilt steering hydraulic cylinders. This 7S-4571 hydraulic cylinder seal kit utilizes premium nitrile butadiene rubber to maintain compression force under fluctuating pressures. When tilt steering response becomes inconsistent, installing 7S4571 restores proper gland compression and eliminates internal fluid bypass. The loader lift circuit benefits from 7S-4571 because the black NBR compound resists swelling from petroleum-based hydraulic oils. Excavator operators choose 7S4571 for steering applications because it maintains dimensional stability across temperature swings from -30°C to +105°C. Part number 7S-4571 complements the kit by sealing both static flange interfaces and dynamic piston zones with consistent contact pressure. Every seal kit containing 7S4571 and 7S-4571 undergoes extrusion resistance testing at 3600 PSI operating pressures to verify groove fill ratios.
Version 2 (Application & Loader Hydraulic Compatibility Focus)
Heavy equipment workshops specify 7S4571 as the preferred NBR black O-ring for excavator loader lift and tilt cylinders. The 7S-4571 hydraulic cylinder loader kit pairs effectively with 7S4571 for complete gland and piston sealing coverage. When servicing a steering cylinder, always include 7S4571 to match OEM groove dimensions precisely for optimal sealing force. Part number 7S-4571 addresses common leakage points in loader lift valve blocks and piston seal interfaces. Excavator loaders equipped with 7S4571 and 7S-4571 demonstrate smoother transition between lift and tilt functions without pressure spikes. The NBR black O-ring configuration using 7S4571 reduces fluid consumption by 28 percent compared to conventional seal materials. Field data confirms that 7S-4571 and 7S4571 extend steering cylinder service intervals by 1400 operating hours in demanding excavation environments.
Contact Person: SUNNY
Tel: 86 18605253464
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