Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
S8 Compact Seal NBR Fabric Reinforced Hydraulic Seal
Suitable for hydraulic cylinder, machine tool, construction and agricultural machinery
- Category：Hydraulic Seal / Compact Combined Seal
- Temperature：-30℃ ~ +100℃
- Material：NBR Rubber + Fabric Reinforced
- Color：Rubber part blue, Fabric part black
- Hardness：70 Shore A
- Product description： S8 compact seal is one-piece fabric reinforced hydraulic seal, universal for shaft & rod, can be used as rod seal and piston seal. Fits ISO 5597 standard groove, features anti-extrusion, low friction, stable operation and easy installation. Suitable for medium-low pressure hydraulic cylinders, machine tools, construction machinery and agricultural machinery.
5.0
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
1. Basic Product Information
Product Name: S8 Compact Combined Seal
Brand: Freudenberg Merkel
Product Type: One-way compact main seal for hydraulic piston rod & piston
Application Position: Hydraulic cylinder main sealing, widely used for standard medium-low pressure cylinder replacement and aftermarket spare parts.
Brand: Freudenberg Merkel
Product Type: One-way compact main seal for hydraulic piston rod & piston
Application Position: Hydraulic cylinder main sealing, widely used for standard medium-low pressure cylinder replacement and aftermarket spare parts.
2.Structural Features
- Integrated one-piece composite structure.
- Sealing lip: NBR rubber for primary sealing.
- Backing layer: Fabric reinforced design for anti-extrusion, rigid support and low friction.
- Symmetrical cross-section, unidirectional pressure resistance.
- Fits ISO 5597 standard groove.
- asy installation, suitable for closed groove assembly without special tools.
3.Standard Material & Hardness
- Sealing compound: NBR
- Hardness: 70 Shore A
- Reinforcement layer: High-performance synthetic/cotton fabric
4.Working Parameters
- Max Working Pressure: 25 MPa (250 bar)
- Working Temperature: -30℃ ~ +100℃
- Reciprocating Speed: ≤ 0.5 m/s
- Suitable Media: Mineral hydraulic oil HL / HLP, clean water, HFA / HFB / HFC fire-resistant hydraulic fluid, glycol-based media.
5.Core Advantages
- Excellent anti-extrusion performance with fabric backing.
- Superior low-pressure sealing performance, low leakage.
- Low friction coefficient, stable operation without crawling.
- Standard universal groove, high interchangeability for replacement.
- Dual usage: applicable for piston rod seal and piston seal.
6.Application Fields
- Standard hydraulic cylinders, telescopic cylinders
- Machine tool hydraulic systems & hydraulic fixtures
- Construction machinery, agricultural machinery
- General mechanical equipment & hydraulic station maintenance
- Injection molding machines and light industrial hydraulic units
7.Size Specification
- Size marking: Inner diameter d × Outer diameter D × Height H
- Standard size range: 10mm ~ 200mm
- Common standard sizes: 18×25×6, 30×38×6.3, 56×66×7.5, 100×110×7.5
- Custom non-standard large sizes available.
8.Installation Instructions
- Follow ISO 5597 standard groove design.
- Install with rubber lip facing the pressure side.
- Recommended rod surface roughness: Ra ≤ 0.4μm.
- Groove must be burr-free to avoid lip damage.
- Suitable for medium-low pressure static and reciprocating dynamic sealing.
9.Application Limitations
- Not suitable for continuous temperature over 100℃.
- Not applicable for working pressure over 25MPa.
- Not recommended for strong acid, alkali and highly corrosive media.
{{item.score}} Stars
{{item.pre}}%
{{item.nickname ? (item.nickname.slice(0, 2) + '*****') : item.source === 1 ? 'mall buyer' : '--'}}
{{item.comment_time}}
Review in the {{item.country}}
{{itemAttr.params_key}}: {{itemAttr.params_value}}
Get In Touch With Us
We are committed to meeting the diverse needs of our global customers through innovation and continuous improvement.
Need more information?
If you didn't find what you need, you can send an inquiry through our contact form.
Please fill in the form below.
Quick Links
Products
Contact Us