A leading manufacturer of rubber sealing solutions in China
Backed by Decades of Experience and offers the most diverse material options in the market. We supply o-rings and seals in any size, material, durometer, and performance requirements.
Quality Parts On-Time and On-Budget, From Prototype to Production.
Custom Sealing Solutions Built for Performance, Reliability, and Long-Term Success
Every industrial product depends on one small but critical detail: sealing performance.
A leaking gasket, failed O-ring, or poorly designed molded component can stop production, damage equipment, contaminate systems, and increase warranty costs. That is why more global OEM brands are investing in engineered custom sealing solutions instead of standard off-the-shelf parts.
At Xiamen Jinshun Sealing Technology, we help manufacturers solve complex sealing challenges with custom-designed rubber components, precision molded seals, FDA-grade silicone products, and engineered sealing systems tailored to real-world operating conditions.
Since 2002, we have supported customers across automotive, food & beverage, medical, water treatment, electronics, industrial equipment, and energy industries with reliable OEM and ODM sealing solutions manufactured to international quality standards.
Why Custom Sealing Solutions Matter
Standard sealing products do not always fit modern industrial demands.
Today's equipment often requires:
- Higher pressure resistance
- Better chemical compatibility
- Extreme temperature stability
- Food-grade compliance
- Longer service life
- Tighter dimensional tolerances
- Faster production cycles
Custom sealing solutions are designed specifically for your application instead of forcing your equipment to adapt to generic parts.
The result:
- Better sealing performance
- Lower maintenance costs
- Reduced leakage risk
- Longer equipment lifespan
- Improved product reliability
Complete Custom Sealing Solutions from One Manufacturing Partner
Xiamen Jinshun Sealing Technology provides full-service sealing manufacturing support - from material selection and engineering consultation to tooling, testing, production, and logistics.
Our Main Product Categories
| Product Type | Applications |
|---|---|
| Rubber O-Rings | Hydraulic systems, pumps, valves |
| Custom Gaskets & Seals | Industrial machinery, water systems |
| Silicone Tubes | Food equipment, coffee machines |
| Molded Rubber Parts | Automotive and industrial components |
| Rubber Bellows & Boots | Dust protection and movement compensation |
| Diaphragms | Pumps, valves, fluid control |
| Metal Bonded Rubber Parts | Automotive and vibration systems |
| FDA Silicone Components | Beverage, dairy, medical equipment |
| RO Membrane Seals | Water purification systems |
| Custom Assemblies | OEM integrated sealing systems |
Over 3,600 Material Options for Customized Sealing Projects
Material selection is one of the most important parts of any sealing solution.
Different applications require different properties:
- Heat resistance
- Oil resistance
- Chemical compatibility
- Compression set performance
- Food-grade compliance
- UV and ozone resistance
Our engineering team helps customers select the most cost-effective and reliable material based on actual working conditions.
Available Rubber & Polymer Materials
| Material | Key Advantages |
|---|---|
| Silicone | FDA food-grade, high temperature resistance |
| EPDM | Water, steam, UV, ozone resistance |
| NBR / Nitrile | Oil and fuel resistance |
| FKM / Viton® | Chemical and high temperature resistance |
| FFKM | Extreme chemical resistance |
| Neoprene | Balanced industrial performance |
| Fluorosilicone | Fuel and low temperature resistance |
| PTFE | Low friction and chemical inertness |
| TPU & Thermoplastics | Wear resistance and flexibility |
FDA, NSF & Global Compliance Support
For food, medical, and drinking water applications, compliance matters just as much as performance.
Our materials can meet international standards including:
| Certification | Application |
|---|---|
| FDA | Food contact safety |
| NSF | Drinking water systems |
| LFGB | European food-grade compliance |
| WRAS | UK water applications |
| ACS | French water certification |
| KTW-W270 | German drinking water approval |
| ROHS | Environmental compliance |
| REACH | Chemical safety compliance |
This makes our custom sealing solutions ideal for:
- Coffee machines
- Beverage dispensers
- Water filtration systems
- Medical devices
- Sanitary fittings
- Food processing equipment
Our Custom Sealing Process
We follow a structured engineering process to ensure every sealing component performs reliably in real operating conditions.
Step 1
- Consultation
We begin by understanding:
- Your operating environment
- Failure points
- Temperature range
- Pressure conditions
- Chemical exposure
- Compliance requirements
Step 2
Material & Design Analysis
Our engineers evaluate:
- Material compatibility
- Seal geometry
- Compression performance
- Tooling feasibility
- Production cost optimization
Step 3
Engineering & Prototype Development
We create:
- CAD drawings
- Prototype tooling
- Sample production
- Material validation
Step 4
Testing & Validation
We test for:
- Compression set
- Tensile strength
- Temperature resistance
- Chemical compatibility
- Dimensional accuracy
Step 5
Mass Production & Ongoing Support
After approval, we move to:
- Stable mass production
- Quality inspection
- Packaging support
- Logistics coordination
- Post-launch technical support
Manufacturing Capabilities
Our factory combines advanced molding technology with strict quality control systems to support both low-volume and high-volume OEM projects.
Production Capabilities
| Capability | Details |
|---|---|
| Compression Molding | Large and medium rubber parts |
| Injection Molding | Precision high-volume production |
| Transfer Molding | Complex sealing geometries |
| Rubber-to-Metal Bonding | Structural sealing components |
| Extrusion | Silicone tubing and sealing strips |
| Die Cutting | Precision gasket manufacturing |
| Water Jet Cutting | High-accuracy custom parts |
Precision Matters in Industrial Sealing
A seal that is only slightly out of tolerance can cause:
- Fluid leakage
- Premature wear
- Pressure instability
- Equipment downtime
That is why we focus heavily on:
- Tight dimensional tolerances
- Material consistency
- Surface finish quality
- Compression recovery
- Batch traceability
Our quality systems comply with:
- ISO9001:2015
- ISO14001:2015
Industries We Serve
Our custom sealing solutions are widely used across demanding industrial sectors
Our custom sealing solutions are widely used across demanding industrial sectors.
Automotive Industry
- Air intake systems
- Brake systems
- Cooling systems
- Wiring harness seals
- Suspension systems
Food & Beverage Industry
- Coffee machine seals
- FDA silicone tubing
- Beverage dispensing systems
- Dairy processing equipment
Water Filtration & Sanitary Systems
- RO membrane seals
- Faucet valve seals
- Water purification components
Medical & Life Science
- FDA-grade silicone components
- Sterile sealing systems
- Medical device gaskets
Semiconductor & Electronics
- High purity sealing systems
- Heat resistant seals
- Precision molded elastomers
Energy & Chemical Processing
- Chemical resistant gaskets
- High pressure seals
- Heat resistant sealing systems
Why Global Buyers Choose Xiamen Jinshun Sealing Technology
More Than 20 Years of Industry Experience
Established in 2002, we have extensive experience supporting international OEM and industrial customers.
Flexible OEM & ODM Manufacturing
We support:
- Drawings
- Samples
- Reverse engineering
- Material optimization
- Private labeling
Fast Development Cycles
Rapid tooling and sampling help reduce product development time.
Strong Cost Control
Efficient manufacturing and global supply chain management help customers reduce procurement costs without sacrificing quality.
Engineering Support
Our technical team works directly with customers to improve:
- Seal life
- Production efficiency
- Material performance
- Assembly reliability
Value-Added Services
We provide more than manufacturing.
Additional Services Include
| Service | Benefit |
|---|---|
| Vendor Managed Inventory (VMI) | Reduced inventory pressure |
| Private Label Packaging | Brand-ready delivery |
| Laser Marking | Traceability and identification |
| Custom Kitting | Faster assembly operations |
| Technical Consulting | Material and design optimization |
| Compliance Testing | Faster project approval |
| Just-In-Time Delivery | Improved supply chain efficiency |
Real-World Custom Sealing Success Stories
High Pressure Water Jet Sealing
We engineered a custom sealing system capable of handling:
- 60,000 PSI operating pressure
- Continuous reciprocating movement
- Long-term durability under extreme stress
Extreme Heat PTFE Seal
Our engineering team developed a spring-energized PTFE seal operating at:
- 600°F (315°C)
- 1,000 PSI pressure
- The result was improved sealing reliability and reduced downtime.
Metal Over-Molded Safety Components
We helped an industrial customer rapidly scale production of multi-cable locking components with:
- Improved safety performance
- Faster assembly
- High-volume manufacturing support
Frequently Asked Questions (FAQs)
What are custom sealing solutions?
Custom sealing solutions are specially engineered sealing components designed for unique equipment, pressure, temperature, or chemical conditions.
Can you manufacture based on drawings or samples?
Yes. We support full OEM and ODM manufacturing based on customer drawings, samples, or specifications.
What industries use your sealing products?
Our products are widely used in automotive, food processing, medical, water treatment, industrial equipment, energy, and electronics industries.
What materials do you offer?
We offer silicone, EPDM, NBR, FKM, FFKM, PTFE, fluorosilicone, neoprene, and many specialty compounds.
Do your products comply with FDA and NSF standards?
Yes. Many of our compounds comply with FDA, NSF, WRAS, LFGB, ACS, and KTW-W270 standards.
Can you support small and large production volumes?
Absolutely. We support both prototype projects and large-scale OEM production.
How fast can you provide samples?
Most prototype samples can be completed within 1–2 weeks depending on tooling complexity.
Your Reliable Partner for Custom Sealing Solutions
Choosing the right sealing partner is about more than just price.
You need:
- Consistent quality
- Engineering expertise
- Fast communication
- Reliable lead times
- Long-term technical support
At Xiamen Jinshun Sealing Technology, we combine advanced manufacturing, flexible customization, and global compliance expertise to help OEM buyers reduce risk and improve product reliability.
Whether you need custom O-rings, FDA silicone tubing, molded rubber components, or complete engineered sealing systems, our team is ready to support your project from concept to production.
Contact Xiamen Jinshun Sealing Technology Today
Xiamen Jinshun Sealing Technology Co., Ltd.
Website: Xiamen Jinshun Sealing Technology Official Website
Blog & Industry Insights: Custom Sealing Solutions Blog Center
Email: ywb6@jinshunxm.com
Tel: +86-592-7155518
Contact Us For:
- OEM & ODM sealing projects
- Free material recommendations
- Custom mold development
- FDA-grade sealing solutions
- Prototype sampling
- Bulk manufacturing quotations