Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of shock absorber/damper customized rubber parts in China. If you're going to buy shock absorber/damper customized rubber parts made in China, welcome to get more information from our factory. We also accept customized orders.
Product Description
Shock Absorber/Damper Customized Rubber Parts
Description
| Material | NR, NBR, SBR, EPDM, FKM, Silicone, HNBR, Viton etc. |
| Size | According to drawing |
| Color | Black/White/Blue/Red/Yellow, etc |
| Temperature | Commom: -40~230 Celsius Degrees |
| Special features /Working environment |
Non-toxic; oil-resistance; heat resistance; abrasion-resistance; aging resistance; insulation; acid and alkaline resistancel airtight; shock absorption, etc. |
| Application | Used in household, fitting, pipes and other industry accessories and auto parts. |
| Certification | SGS, RoHS and FDA. |
| Delivery time | 20-35days after prepayment received |
| MOQ | 100-1000pcs |
| Packing details | According to your request |
| Shipment | By express(DHL/UPS/FEDEX)/By sea/By air |
| Port | FOB SHANGHAI OR NINGBO |
Rubber material solution
Rubber parts within a shock absorber serve multiple critical functions. They act as buffers to prevent metal-to-metal contact during full compression, serve as dust and moisture seals to protect the piston rod, and function as mounting points that isolate vibration from the chassis or machinery frame.
Because every suspension system operates under different loads, frequencies, and environmental conditions, standard off-the-shelf rubber components are not always sufficient. Our manufacturing process is built around customization, ensuring that every grommet, bushing, buffer, and seal is engineered to match the specific physical requirements of your damper design.
The foundation of a durable rubber part lies in its material composition. Different operating environments require different polymer bases. We work with a variety of raw materials, selecting the compound based on the end-use application of the shock absorber.
Natural Rubber (NR): Often selected for suspension bushes and engine mounts due to its superior tear strength and excellent resistance to dynamic fatigue. It provides high elasticity, which is essential for absorbing heavy shock loads.
Nitrile Rubber (NBR): The standard choice for sealing applications, particularly in oil-filled dampers. NBR offers exceptional resistance to petroleum-based oils, greases, and fuels, ensuring that internal fluids remain contained and external contaminants are kept out.
Ethylene Propylene Diene Monomer (EPDM): Ideal for components exposed to the elements, such as external dust covers or outdoor machinery mounts. EPDM provides strong resistance to ozone, weathering, and steam, maintaining flexibility even in fluctuating temperatures.
Silicone (VMQ): Used in specialized applications requiring extreme temperature resistance. Silicone maintains its physical properties in both very high and very low thermal environments, though it is generally not suitable for high-pressure dynamic sealing in hydraulic systems.
Polyurethane (PU): When higher load-bearing capacity and abrasion resistance are required, polyurethane offers a harder, more durable alternative to standard rubber, often used for heavy-duty bump stops.
Our facility is equipped to handle various molding processes to produce customized rubber parts. The choice of manufacturing method depends on the complexity of the part design, the required tolerances, and the volume of the order.
1. Compression Molding
This is a widely used method for producing medium-to-large volume parts. Pre-measured rubber blanks are placed into a heated mold cavity, and pressure is applied to force the material into shape. This process is cost-effective for producing robust components like bump stops and simple grommets. It allows for the use of a wide range of rubber compounds and is suitable for parts with relatively simple geometries.
2. Injection Molding
For shock absorber parts requiring tight tolerances and complex geometries, injection molding is the preferred method. The rubber compound is injected into the mold under high pressure. This process ensures a high degree of repeatability and dimensional accuracy, which is critical for sealing elements and precision-molded bushings. It also allows for faster cycle times, making it suitable for larger production runs.
3. Rubber-to-Metal Bonding
Many damper components require a rigid structure combined with a flexible interface. We specialize in bonding rubber directly to metal inserts during the vulcanization process. This creates a permanent, chemical bond between the elastomer and the metal substrate (such as steel or aluminum). Common applications include the inner sleeves of bushings and mounting eyes for shock absorbers. Proper surface preparation of the metal and the use of specialized adhesives ensure that the bond withstands high shear and tensile stresses without separating.
Quality Control and Testing
In the production of damping components, consistency is key. A variance in rubber hardness or a microscopic flaw in a seal can lead to premature failure of the shock absorber. Our quality control protocols are integrated into every stage of production.
Raw Material Inspection: Every batch of raw rubber compound is tested for viscosity and cure characteristics before entering production.
Dimensional Checks: We utilize calipers, micrometers, and optical measuring systems to verify that parts meet the specified drawings and tolerances.
Hardness Testing: Shore A durometers are used to ensure the rubber has been cured to the correct hardness specification.
Physical Property Testing: We conduct regular tests for tensile strength, elongation at break, and compression set to ensure the material performs as expected over time.
Design Support and Customization
We understand that the development of a new shock absorber often requires iterative prototyping. Our team works with clients to refine part designs for manufacturability. This includes advising on draft angles, parting lines, and material selection to optimize performance and reduce production costs.
Whether the requirement is for a protective dust boot to keep debris off a piston rod, a rebound bumper to limit extension travel, or a complex mounting bushing to dampen road noise, we approach each project with a focus on technical precision. By controlling the compounding, molding, and finishing processes in-house, we ensure that the final rubber part delivers the necessary durability and resilience for your specific damping application.
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