Our range of hydraulic cylinder rod seals includes PU U-cup seals, BS Series seals, H605 and UPR profiles, PTFE step seals, and buffer seals. Available specifications include sizes from 6 × 12 × 5 mm to 55 × 65 × 7 mm, with different pressure, speed, temperature, and material configurations across individual designs. We offer standard and customized rod seal sizes for hydraulic cylinder applications.

 
 

1. Rod Seal Types and Available Specifications

The following hydraulic rod seal products have different sealing profiles and operating parameters. Each specification applies to its corresponding product design.

Rod Seal Type Size (mm) Material / Construction Maximum Pressure Maximum Speed Temperature Range
BS Series Rod Seal 6 × 12 × 5 PU, asymmetric lip with auxiliary sealing lip ≤40 MPa ≤0.5 m/s -35°C to +110°C
U Cup Rod Seal 14 × 20 × 5 PU or NBR ≤31.5 MPa ≤0.5 m/s -35°C to +100°C
Double Lip U Cup Rod Seal 55 × 65 × 7 PU, double-lip structure ≤31.5 MPa ≤0.8 m/s -35°C to +100°C
H605 Rod Seal 34.93 × 44.45 × 7.92 PU ≤35 MPa ≤0.5 m/s -40°C to +100°C; short-term maximum +120°C
UPR H601 Rod Seal Standard or customized size PU ≤40 MPa ≤1.0 m/s -45°C to +110°C
PTFE Step Rod Seal Product-specific dimensions Bronze-filled PTFE sliding ring + NBR 70 Shore A O-ring energizer ≤40 MPa ≤5.0 m/s -35°C to +110°C
Buffer Rod Seal Product-specific dimensions High-modulus PU + POM/Nylon support ring ≤50 MPa ≤1.0 m/s -35°C to +110°C

The listed pressure and speed values are maximum product specifications, not confirmed continuous operating ratings. Dimensions and operating limits apply only to their respective product designs.

2. Materials and Sealing Configurations

Available material and structural configurations for our hydraulic rod seals include:

PU Rod Seals: Used in BS Series, H605, UPR H601, and selected U-cup designs.

NBR Options: Available alongside PU for the 14 × 20 × 5 mm U Cup Rod Seal.

PTFE Step Seals: Bronze-filled PTFE sliding ring combined with an NBR 70 Shore A O-ring energizer in a single-acting sealing structure.

Buffer Seals: High-modulus PU sealing element with a POM/Nylon support ring and an asymmetric buffer profile.

BS Series: Asymmetric lip profile with an auxiliary sealing lip.

Double Lip U Cup: PU construction with a double-lip sealing profile.

3. Standard Sizes and Customization

We provide standard hydraulic cylinder rod seal specifications and customized options for selected product series.

Customization Item Available Options
Dimensions Standard sizes and customized sizes for UPR H601 and BS Heavy-Duty designs
Material NBR, FKM, PTFE, and PU
Color Blue or customized for UPR H601; green, blue, or customized for BS; blue, black, or customized for selected U-cup seals
Product Development CAD design, material customization, and rapid prototyping

Customization options vary by product series. Material and color availability should be confirmed for the specific profile being ordered.

We also accept drawings and samples for customized sealing products.

4. Manufacturing and Quality Control

Our manufacturing facilities are equipped with automatic injection molding machines, precision CNC machining centers, and vulcanizing presses. The production base also includes injection molding and compression molding equipment.

Our manufacturing and quality management activities include:

  • Raw material procurement and inspection.
  • Precision molding and machining.
  • Dimensional and finished-product inspection.
  • Material analysis and pressure testing using available testing equipment.
  • Warehousing and logistics management.

These facilities support our broader hydraulic sealing product manufacturing and supply operations.

5. Request a Rod Seal Quotation

Send us your existing hydraulic rod seal specifications, a dimensional drawing, or photos of the original seal. Include the required quantity and any known operating conditions.

We will review the available product specifications and provide a quotation for the corresponding standard or customized rod seal.

Contact us with your dimensions, sample information, or product requirements to discuss your rod seal order.

Hebei Jinwo Machinery Technology Co., Ltd. is one of the most professional rod seal manufacturers and suppliers in China, featured by quality products and good price. Welcome to buy bulk advanced rod seal in stock here and get pricelist from our factory. We also accept customized orders.

Buffer Rod Seal, cylinder rod seal, rod seal types
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