Xingtai Boshuo Auto Technology Co., Ltd. is one of the leading manufacturers and suppliers of hydraulic pistion and rod seal in China. If you're going to wholesale bulk hydraulic pistion and rod seal made in China, welcome to get pricelist and free sample from our factory. All customized products are with high quality and low price.
Product Attributes
|
Name |
Hydraulic Piston and Rod Seal |
|
Place of origin |
Hebei,China |
|
Material |
Polyurethane (PU) |
|
Certificates |
ISO 9001 |
|
Color |
Blue (standard PU), Green, Brown, Black/customizable |
|
Size |
any |
|
Feature |
Sealing Performance |
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Available Profiles |
UHS, UHR, UN, UNS, UNP, IDU, IDI, ODU, OSI, DHS, DH, DKBI |
|
OEM / ODM |
Accpetable |
|
Packing Details |
Plastic Bags +Carton |
|
Quality |
High Quality |
|
Application |
Sealing for piston and rod in hydraulic cylinders; prevents oil leakage and maintains system pressure |
|
Suitable Equipment |
Construction machinery (excavators, loaders), agricultural machinery (tractors, harvesters), industrial equipment (presses, injection molding machines), mining equipment, forklifts, lifting platforms |
|
MOQ |
1000pcs |
|
Hardness |
80-95 Shore A (PU) |
|
Service |
Customize Special Sizes |
Product Type
Polyurethane oil seals are available in a wide range of profiles to suit different sealing applications.
Common types include:
- UN / UNS / UNP – U-cup seals for rod and piston applications, designed for reciprocating motion in hydraulic cylinders
- UHS – U-cup rod seal with a compact cross section, ideal for high pressure rod sealing
- UHR – U-cup piston seal for heavy duty cylinder applications
- IDU / IDI – Double acting piston seals with excellent sealing performance in both directions
- ODU / OSI – Heavy duty piston seals for large diameter cylinders
- DH / DHS / DKBI – Dust wiper seals for excluding contaminants from hydraulic systems
- PU O-Ring – General purpose static and dynamic sealing
- Backup Rings – Used with O-rings and U-cups to prevent extrusion under high pressure
These profiles are available in various sizes and can be customized for specific cylinder dimensions, offering reliable sealing solutions for construction, agricultural, mining, and industrial hydraulic equipment.
Comparison: This Product vs. Competitor Products
|
Comparison Dimension |
Xingtai Boshuo Hydraulic Seals |
Ordinary Economy Seals |
Imported High-End Precision Seals |
|
Material & Formulation |
Uses high-quality imported polyurethane, NBR, or FKM. Balanced performance in wear resistance, hydrolysis resistance, and extrusion resistance. Customized formula recommendations available for specific applications. |
Mostly made from recycled rubber or low-purity materials. Narrow temperature range; prone to early hardening, cracking, or swelling in water. |
Uses specialty high-performance materials, like extreme-temperature HNBR or self-lubricating composites, delivering ultimate performance. |
|
Dimensional Accuracy & Installability |
Strictly manufactured to ISO/DIN/GB groove standards. Precisely controlled lip interference ensures smooth installation and reliable static sealing. |
Large dimensional fluctuations; often causes internal leakage from looseness or seal damage from excessive interference during installation. |
Micron-level precision; suitable for precision servo cylinders, with extremely high first-time fit rates. |
|
Break-away Friction & Dynamic Sealing |
Lip surface treated for low break-away friction, preventing stick-slip. Works with guide rings to maintain a stable oil film. |
Rough surface, high friction, likely to cause stick-slip, vibration, and noise. |
Features ultra-low-friction design, suitable for very low-speed and high-frequency-response demanding applications. |
|
Service Life |
In normal maintenance for general construction machinery, machine tools, and metallurgical cylinders, life reaches approximately 2,000–3,000 hours. |
Often shows leakage or plastic deformation within 500–1,000 hours. |
Can achieve 4,000–6,000 hours or longer under good working conditions. |
|
Working Condition Coverage |
Temperature range -30°C to +110°C (standard materials), compatible with most mineral oils and water-glycol. High-pressure customization available. |
Narrow temperature range, incompatible with water-containing media, easy to fail by extrusion under high pressure. |
Covers -50°C to +230°C or wider, resistant to virtually all hydraulic media, withstands pressures above 80 MPa. |
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Price & Service |
Extremely cost-effective, about 1/3 to 1/2 the price of imported high-end products. Supports small-to-medium batch customization, rapid response, and technical selection guidance. |
Low price but unreliable quality, no technical support, high return risk. |
Expensive, long lead times, less flexible for small batch orders. |
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Typical Application Scenarios |
General hydraulic cylinders, construction machinery, agricultural machinery, machine tools, metallurgical cylinders, forklifts, etc., where a balance of reliability and cost is sought. |
Low-load, non-critical, short-run applications where frequent replacement is acceptable. |
Extreme environments, high-precision servo systems, critical equipment where downtime is unacceptable. |
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