Bellows
Your Professional Bellows Supplier
Tianjin Maojie Rubber Products Co., Ltd. is a private enterprise specializing in the integrated design and manufacturing of rubber products. Currently, the company provides customized processing services for rubber and plastic products across various industries. Its main product portfolio includes a wide range of rubber components—such as O-rings, seals, mechanical seals, and gaskets—plastic parts, molded hardware packaging, metal-plastic composites, rubber shafts, rubber rollers, and other specialized rubber products.
Customized Services
The company offers tailored manufacturing solutions based on technical drawings and specifications provided by clients. Upon submission of required documentation, we provide detailed cost estimates. Production proceeds upon client confirmation of pricing and technical requirements.
Free Sample Provision
For products requiring mold development, we offer free sample production following mold fabrication. Samples are delivered to clients for evaluation and approval. Mass production commences only after formal confirmation of sample compliance with specifications.
Advanced Production Equipment
Our production line is equipped with state-of-the-art facilities, including raw material pre-treatment systems, mixing equipment, molding machines, vulcanization units, and post-processing apparatus, ensuring consistent product quality and process efficiency.
High-Quality After-Sales Service
We provide long-term mold maintenance and repair services. Our customer support team maintains regular communication with clients, promptly addresses inquiries, and ensures comprehensive after-sales support throughout the product lifecycle.
Parameter
|
Color |
Black,White,Red,Green,Transparent or Any Color |
|
Main Material |
EPDM,Silicone,FKM,NBR,SBR,Cr etc. |
|
Size |
As Per Customer′s Requirements |
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Tolerance |
+/-0.05mm |
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Technology |
Hot Pressing Molding,Injection Molding |
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Hardness |
Shore a |
|
Working Temperature |
-60~350 ºC |
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Density |
1.0-2.0g/cm3 |
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Service |
OEM or ODM |
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Certification |
ISO,SGS,RoHS,FDA,etc |
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Drawing Format |
Step/Pdf |
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Logo |
Debossed, Embossed, Printing |
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Advantage |
Flexible,Heat Resistant,Oil Resistant,Corrosion Re |
|
Service Life |
1-30Years |
|
Sample |
Free Sample Available |
|
More Color |
Red, Green, Blue, Black, Any Color Is Avaliable |
Types of Bellows
The bellows produced by our company mainly include the following types:
U-Shaped Bellows
U-shaped bellows are tubular elastic elements with a wavy shape. It is composed of several ripples, each of which is made up of two arcs with opposite normal curvatures.
Toroidal (Ω-Shaped) Bellows
The toroidal (Ω -shaped) bellows is a flexible pressure vessel with a circular ring structure and is often used in high-pressure applications. Compared with traditional U-shaped corrugated pipes, they exhibit lower stress caused by internal pressure, longer fatigue life and better resistance to pressure instability.
Rectangular Rubber Bellows
Rectangular rubber bellows (also known as rectangular rubber compensators or rectangular expansion joints) are a type of pipe fitting with flexibility and pressure resistance, playing a significant role in mechanical systems.
Advantages of Bellows
Flexibility and movement absorption
Rubber bellows, made of high-quality material like Ditec bellows, can accommodate lateral, axial, and angular movement. This reduces the stress on fixed components and extends the pipeline’s lifespan.
Corrosion resistance
Rubber bellows are resistant to chemical attack and corrosion, which makes them ideal for transporting abrasive and corrosive fluids.
Dampening vibration
Pipelines in industrial environments are exposed to vibration from equipment and machinery. However, rubber bellows act as excellent shock absorbers, thus reducing vibration and noise levels.
Easy installation
Rubber bellows come in various configurations and sizes. This allows for a customised fit in any pipeline system. The ease of installation minimise downtime during system expansion or maintenance.
Cost effective
Reduced electricity costs, extended pipeline life, and improved safety make rubber bellows cost-effective pipeline solutions. It can lead to long-term savings for industries.
Automotive
Protect steering racks, CV joints, ball joints, and exhaust systems from dirt, moisture, and mechanical stress.
HVAC Systems
Provide weather-resistant seals in ducting and expansion joints.
Industrial Machinery
Seal and protect moving parts in hydraulic and pneumatic cylinders, pumps, and valves.
Aerospace
Silicone and Viton bellows withstand extreme temperatures and chemical exposure in aircraft systems.
Chemical Processing
Seal pumps and pipelines, preventing leaks of corrosive fluids.
Pharmaceuticals
Ensure sterile environments by protecting equipment from contaminants.
Oil & Gas
Custom rubber bellows made of Viton withstand harsh chemicals and high temperatures in refineries.
Natural Rubber
Offers excellent flexibility, tear resistance and abrasion resistance but limited heat and chemical resistance. Ideal for general industrial and automotive uses.
Neoprene
Good weathering and moderate oil resistance, often used in HVAC ducting.
Nitrile Rubber
Known for outstanding oil and fuel resistance, commonly used in automotive fuel systems and hydraulic applications.
EPDM
Excellent resistance to weathering, ozone, UV and chemicals, making it suitable for outdoor HVAC and chemical processing environments.
Silicone
Provides high flexibility and heat resistance, used in aerospace and medical devices.
Viton
Withstands aggressive chemicals and high temperatures, ideal for oil and gas applications.
Notes on Installation of Bellows
Remove Debris:
Get rid of loose debris with a brush or compressed air.
Align Correctly:
Place the bellows over the mated parts.
Avoid Twisting:
Verify the bellows are not twisted or distorted during installation.
Check Clearance:
Clearance around bellows should allow for movement.
Clean Surfaces:
Remove grease and grime with a clean cloth and suitable cleaning solution.
Inspect for Damage:
Check the cleaned area for damage or wear that might affect installation.
Use Proper Clamps or Fasteners:
Select compatible clamps or fasteners for the bellows and system.
Tighten Evenly:
Lever the clamps/fasteners loosely to avoid creating pressure points that damage the bellows.
Packaging and Shipping
|
Packaging |
Inner plastic bag and cardboard cartons outside |
|
Shipping |
Air freight, Sea freight, Train Express |
Our Factory
The company is located in Tianjin. Since its establishment, the company has continuously cultivated new employees and absorbed innovative ideas.
