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Xiamen Dezhengkai Sealing Technology Co., Ltd

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China Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer
China Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer

  1. China Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer
  2. China Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer

Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer

  1. MOQ: 100PCS
  2. Price: Negotiations
  3. Get Latest Price
Temperature -30℃~120℃
Sealed form Double-sided static seal / Reciprocating dynamic seal
Color Blue + Black
Hardness range Shaw A 70~90°
Materials PU + NBR
Product Name Hydraulic oil seal
Work pressureWork pressure 0~40MPa
Function Oil-resistant, wear-resistant, and high-pressure resistant
Payment Terms L/C,T/T
Supply Ability 10000PCS/MONTH
Delivery Time 7-10 days
Packaging Details 100pc/bag
Brand Name DZK
Model Number MPS
Certification ROHS
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Temperature -30℃~120℃ Sealed form Double-sided static seal / Reciprocating dynamic seal
Color Blue + Black Hardness range Shaw A 70~90°
Materials PU + NBR Product Name Hydraulic oil seal
Work pressureWork pressure 0~40MPa Function Oil-resistant, wear-resistant, and high-pressure resistant
Payment Terms L/C,T/T Supply Ability 10000PCS/MONTH
Delivery Time 7-10 days Packaging Details 100pc/bag
Brand Name DZK Model Number MPS
Certification ROHS Place of Origin CHINA
High Light MPS MPI U Hydraulic Oil SealReinforced Main Oil Seal
Hydraulic Oil Seal MPS/MPI/U + S Reinforced Main Oil Seal Excavator Bulldozer Seal Ring
Product Overview

Hydraulic Star-shaped U-ring MPS Combination Seal | Advanced U + S Sealing System

The Hydraulic Star-shaped U-ring MPS Combination U + S Seal is a precision sealing component developed specifically for high-pressure hydraulic systems. It innovatively integrates the bidirectional sealing capability of the U-shaped seal structure with the elastic compensation advantages of the star-shaped S-ring, forming a core design of 'dual sealing + elastic self-adaptation'.

Manufactured from imported high-quality elastomeric materials through precise molding and secondary vulcanization processes, this seal maintains excellent performance under extreme pressure, temperature fluctuations, and complex medium environments. It effectively addresses industry challenges such as wear, leakage, and short service life of traditional sealing components.

Hydraulic oil seal product overview
Core Structure and Technical Advantages
Dual-structure compound design, doubled sealing performance
  • U-shaped main seal layer: Optimized lip angle design automatically adheres to sealing surface under pressure, forming bidirectional sealing barrier that withstands up to 40MPa working pressure
  • S-shaped star elastic ring: Embedded inside U-shaped structure, provides continuous elastic compensating force, adapts to minor deformations and wear, reduces friction coefficient and power loss
Selection of high-end materials for complex working conditions
  • Main material composed of PU + NBR with wear-resistant and high-pressure resistant properties
  • Excellent tear resistance (≥15kN/m), compression set resistance (≤20%), and temperature resistance range (-30℃~120℃)
Precision manufacturing process with stable and reliable quality
  • Formed using CNC precision molds with dimensional tolerance controlled within ±0.02mm
  • Extensive testing including 24-hour high-temperature aging, 100,000-cycle pressure test, and medium immersion test
  • Product pass rate reaches 99.8% with service life 3~5 times longer than traditional seals
Key Performance Parameters
Product Name Hydraulic oil seal Materials PU + NBR
Color Blue + Black Function Oil-resistant, wear-resistant, and high-pressure resistant
Standard or non-standard Standard product Temperature -30℃~120℃
Work Pressure 0~40MPa Sealed Form Double-sided static seal / Reciprocating dynamic seal
Hardness Range Shaw A 70~90° Applicable Media Mineral oil, hydraulic oil, emulsion, ethylene glycol solution, etc.
Applicable Scenarios and Industry Applications

Thanks to its excellent sealing performance and wide adaptability, this product has been successfully applied to hydraulic systems in multiple fields:

  • Industrial Machinery: Hydraulic cylinders and hydraulic valve groups in machine tools, injection molding machines, presses, and cranes
  • Construction Machinery: Hydraulic executive components and hydraulic pipe fittings in excavators, loaders, and bulldozers
  • Automotive Industry: Hydraulic braking systems and hydraulic power steering systems in commercial vehicles
  • Energy Equipment: Wind power hydraulic systems, hydraulic pump stations, and hydraulic motors
  • Other Fields: Aerospace hydraulic components, ship hydraulic systems, and agricultural machinery hydraulic devices
Product Real Shot
Close-up view of hydraulic oil seal Hydraulic oil seal side profile Hydraulic oil seal installation demonstration Hydraulic oil seal technical specifications

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2018

  • Total Annual:

    200-300

  • Employee Number:

    50~100

  • Ecer Certification:

    Verified Supplier

DZK seal Established in 2015, Xiamen De Zheng Kai Sealing Technology Co., Ltd. is a professional manufacturer of high-quality precision sealing components.Specializing in the production of various hydraulic and pneumatic sealing products. Its quality system certification has passed ISO 9001:201... DZK seal Established in 2015, Xiamen De Zheng Kai Sealing Technology Co., Ltd. is a professional manufacturer of high-quality precision sealing components.Specializing in the production of various hydraulic and pneumatic sealing products. Its quality system certification has passed ISO 9001:201...

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  • Xiamen Dezhengkai Sealing Technology Co., Ltd
  • No55 north pingcheng road.Haicang district,Xiamen City,Fuiian Province.China.
  • https://www.rubberringseals.com/

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