Hydraulic & Pneumatic Systems
Protect hydraulic cylinders, piston rods, pneumatic actuators and sealing components during repeated compression and extension.
Precision molded rubber bellows engineered for hydraulic systems, automation, robotics and industrial machinery.





Explore our custom molded rubber bellows, protective boots and engineered elastomer components. Every product can be manufactured according to your drawing, sample, material and operating requirements.
Long-stroke protective bellows for industrial equipment.
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Flexible protection for rods, shafts and moving assemblies.
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Compact bellows for pneumatic and mechanical applications.
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Multi-convolution protection with flexible axial movement.
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Custom sizes for hydraulic, pneumatic and machine systems.
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Protective boot for joints, shafts and moving connections.
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Precision molded protection for compact equipment assemblies.
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Flexible molded diaphragm for sealing and pressure control.
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Flexible silicone component for heat-sensitive applications.
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Small molded bellows for precision instruments and mechanisms.
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Heavy-duty molded protection for large industrial components.
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Extended travel protection for cylinders, rods and actuators.
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| Material | Temperature Range | Oil Resistance | Weather Resistance | Typical Applications |
|---|---|---|---|---|
| NBR Nitrile Rubber | -40°C to +120°C | Excellent | Limited | Hydraulic systems, oil-resistant bellows and industrial seals |
| EPDM Ethylene Propylene Rubber | -50°C to +150°C | Limited | Excellent | Outdoor equipment, water systems and weather-resistant components |
| VMQ Silicone Rubber | -60°C to +230°C | Fair | Excellent | Food equipment, electronics, medical and high-temperature systems |
| FKM Fluoroelastomer | -20°C to +250°C | Excellent | Very Good | Automotive, chemical processing and high-temperature sealing |
| HNBR Hydrogenated Nitrile Rubber | -40°C to +150°C | Excellent | Very Good | Heavy-duty equipment, automotive, oil and gas applications |
| CR Neoprene Rubber | -40°C to +120°C | Good | Very Good | Marine equipment, industrial machinery and protective bellows |
| PU Polyurethane | -40°C to +90°C | Very Good | Fair | Wear-resistant parts, machinery components and protective covers |
Available from 30 to 95 Shore A
Selected according to your working conditions
RoHS, REACH and FDA-grade materials available
Material recommendations based on drawings or samples
Not sure which material to choose? Send us your operating temperature, medium, pressure, movement frequency and application environment. Our engineers will recommend a suitable rubber compound.
Get a Material RecommendationTemperature ranges and performance values are general references. Actual performance may vary depending on compound formulation, hardness and operating conditions.
Custom rubber bellows protect moving components from dust, oil, water, chemicals and environmental contaminants across demanding industrial applications.
Protect hydraulic cylinders, piston rods, pneumatic actuators and sealing components during repeated compression and extension.
Shield guide rods, linear rails, lead screws, shafts and moving mechanical components from dust, chips, oil and moisture.
Protect robotic joints, linear actuators, cables and precision motion systems without restricting movement or positioning.
Protect excavators, agricultural machinery, lifting equipment and outdoor hydraulic systems from mud, dust, water and abrasion.
Flexible protection for medical lifting systems, laboratory equipment and specialized machinery requiring clean operation.
Used in steering, suspension, transmission and control systems requiring resistance to oil, wear, weather and continuous motion.
Send us your drawing, sample or operating requirements for engineering review and material recommendations.
UB Elastomer is a professional manufacturer of custom rubber bellows and molded elastomer components based in Shenzhen, China.
With 16 years of rubber bellows production experience, we provide engineering support, tooling development, material selection, prototyping and stable mass production for customers worldwide. We have successfully supported more than 10,000 custom projects across a wide range of industrial applications.
Explore our rubber molding facilities, tooling equipment, production workshops, inspection areas and warehousing environment in Shenzhen, China.
Automated molding equipment for stable and repeatable rubber component production.
Controlled molding processes for custom rubber bellows and engineered elastomer parts.
Organized tooling management for custom molds and repeat production projects.
Production lines for molding rubber components under controlled temperature and pressure.
Elastomer compounds prepared according to hardness, temperature and resistance requirements.
Finished parts are trimmed and inspected for appearance, dimensions and consistency.
Vulcanization equipment ensures stable curing, elasticity and dimensional performance.
Organized storage for raw materials, tooling and finished products before shipment.
Every custom rubber bellows project is engineered, molded and inspected under controlled production conditions to ensure dimensional accuracy, reliable performance and consistent quality.
Our engineers review your drawing, sample and application conditions to confirm dimensions, material, hardness, movement and environmental requirements.
Custom tooling is developed with appropriate draft angles, shrinkage allowance, parting lines and flash control for stable repeatable molding.
CNC machining, EDM, wire cutting, fitting and polishing are used to produce accurate molds designed for dependable production and long service life.
NBR, EPDM, silicone, FKM and other elastomers are selected and compounded according to oil, temperature, weather, chemical and durability requirements.
Compression, transfer or injection molding is performed under controlled temperature, pressure and curing time to achieve consistent bellows geometry and elasticity.
Finished products are trimmed, cleaned and inspected for appearance, dimensions, hardness and performance before protective export packing and shipment.
Learn more about our customization capabilities, materials, production process, lead times and quality control.
Yes. We manufacture fully customized rubber bellows based on 2D drawings, 3D CAD files, technical specifications or physical samples.
Our engineering team can support product evaluation, reverse engineering, material selection, mold development, prototyping and mass production.
We commonly manufacture rubber bellows using NBR, EPDM, silicone, CR neoprene, natural rubber, HNBR, FKM and polyurethane.
Material selection is based on operating temperature, oil, chemicals, ozone, weather exposure, movement frequency and expected service life.
Please provide a drawing or sample, dimensions, material, hardness, estimated quantity, application and operating conditions.
Information about temperature, medium, pressure, movement and environmental exposure helps us recommend the correct compound and molding process.
Actual lead times depend on the product structure, tooling complexity, material requirements and order quantity.
Quality control covers raw material verification, mold inspection, molding parameters, appearance, critical dimensions, hardness and final inspection before shipment.
Functional, movement, sealing or performance testing can also be arranged according to the application and technical requirements.
UB Elastomer is a custom rubber bellows manufacturer based in Shenzhen, China, with 16 years of manufacturing experience and more than 10,000 completed custom projects.
We support OEM and ODM customers from engineering review and mold development through prototyping, production, inspection and global delivery.
UB
UB Elastomer is a professional custom rubber bellows manufacturer based in Shenzhen, China.
With 16 years of manufacturing experience, we support global OEM and ODM customers from drawing review, material selection and tooling development through sampling, mass production and quality inspection.
Custom Manufacturing From Drawing or Sample
Engineering, Tooling and Material Support
Stable Production for Global Industrial Customers
Send your drawing, sample or specifications. Our engineering team will review your requirements and respond shortly.