Hydraulic Rubber Piston Step Rod Seal Machines Part

• Customization: Available
• Material: NBR+Z20
• Application: Cylinder
• Model NO.: RU6
• Type: Rod Seal
• Performance: High Pressure
• Shape: O-Ring
• Standard: Standard
• Certification: ISO
• Usage: General Hydraulic Cylinders/Trucks/ Machines
• Pressure: Max. 25 MPa
• Speed: up to 0.5 M/S
• Temperature: Use in Mineral Oils:-35 °c to +110 °c
• Media: Mineral Oil-Based Hydraulic Fluids
• Transport Package: Customized
• Specification: Customizable
• Trademark: HSCO
• Origin: China
• Production Capacity: 50000

Product Description

Product Description

Product introduction

 APPLICATION EXAMPLES

Additional to the machined seals Stepseal and Rimseal for housings to ISO 7425/2 (rubber energised plastic seals) the U-Cup type RU6 has been developped as an injection molded seal of polyurethane material to fit in the same ISO housings. The integrated NBR O-Ring (only available for series RU62 - RU64) improves the performance at low pressure and low temperature applications. Polyurethane  is a proven material for U-cups due to their good mechanical  properties.

 The U-Cup type RU6 can be installed as a single seal for low to  medium duty applications; for sealing systems, the U-Cup RU6 shall be installed mainly as a secondary seal together with the stepseal as primary seals.
 

 METHOD OF OPERATION

 

The sealing effect of the U-Cup RU6 comes from the intrinsive preload of the seal body and from the compression of the seal lip and the O-Ring during installation. In operation conditions, the radial contact forces are superimposed by the system pressure. 
Due to the special design and the integrated O-Ring the RU6 U-Cups have an excellent sealing behavior with and without pressure activation. The short sealing lip gives better friction values compared to common U-Cups

Product Parameters and Materials 

-General hydraulic cylinders
 

-Injection molding machines

 -Lift trucks

 -Agricultural machines

MATERIAL
 The thermoplastic polyurethane material Z20 has a 
high abrasion resistance, a low compression set and exhibits a high resistance to clearance extrusion. The integrated O-Ring is an NBR with 70 shore A and a very low compression set.
 U-Cup:  polyurethane 93 shore A 
material code Z20
 O-Ring:  NBR 70 Shore A 
material code N
 Set code: Z20N

Installation 

Our Competitive Advantages

1. Our raw material is imported .

2. Top quality custom rubber products that can completely meet your needs.

3. Fast production & in-time delivery that never delay your project and usage.

4.OEM/ODM Services are available. We can design and produce various Non-standard
    Rubber Parts according to your PDF,3D or STEP drawing files.

Company Profile

About us

Shanghai Huifeng (HSCO) has been a trusted hydraulic system solution provider since its establishment in 2006, specializing in high-performance sealing components, precision hydraulic elements, and customized electro-hydraulic control systems.

In 2019, we expanded our capabilities with a dedicated manufacturing facility focused on the R&D and production of reliable hydraulic products and tailored system solutions. Our experienced engineering team continuously drives innovation, utilizing advanced machining techniques and premium imported materials to ensure superior product durability and performance, even in the most demanding operating conditions.

With strong technical expertise and commitment to quality, HSCO delivers robust hydraulic solutions that meet the evolving needs of modern industrial applications. Our products combine precision engineering with practical reliability, developed through close collaboration with customers to address their specific operational challenges.

Certifications

Factory enviroment

Our facility is equipped with 10 high-precision imported machining centers, including:

1.Doosan vertical machining centers (BT50 & BT40 spindle models)
2.Precision turning centers
3.Surface grinding machines
4.CNC milling machines
Complemented by complete auxiliary equipment such as ultrasonic cleaning machines and salt spray testers, ensuring machining accuracy and product quality reliability.

EXhibition

FQA

Q1. What's the payment term?
A: We accept T/T 30% deposit and 70% balance against copy of B/L, or L/C at sight. West Union, VISA, and PayPal are also available.

Q2. What is the normal lead time for product orders?
A: Usually 5-7 days if the goods are in stock. For out-of-stock items, it takes 15-20 days, depending on the order quantity.

Q3. What is your standard packing?
A: Standard packing is carton boxes with pallets. Custom packing options are available upon request.

Q4. Why should you buy from us instead of other suppliers?
A: We offer OEM & ODM services, high-quality products at competitive prices, strict QC control, and on-time delivery.

Q5. Can we get a sample for reference?
A: Yes, samples are available for quality checking. The buyer covers the shipping cost, which will be refunded upon bulk order confirmation.

Q6. How do you ensure the quality of bulk orders?
A: We provide pre-production samples before mass production and accept third-party inspections (SGS, TÜV, Intertek, BV, etc.).

Q7. Do you follow international standards for rubber products?
A: Yes, we comply with ASTM D2000 for rubber materials and ISO 3302/ISO 2768 for tolerances.

Q8. What materials do you offer?
A: We work with NBR, EPDM, Silicone, FPM (FKM), Neoprene (CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone (FVMQ), FFKM, Liquid Silicone, Sponge, and more.is street light features high brightness, energy saving, environmental protection, and easy installation. It has a waterproof rating of IP67 and has passed CE certification. It is suitable for schools, parks, roadsides, factories, squares, etc. It has a warranty period of 3 years. Moreover, we can provide various styles to meet your need