Hebei Shida Seal Group is a leading supplier of molded rubber products & parts to industrial OEMs (original equipment manufacturers) worldwide. With custom injection molding process and state-of-the-art technology, Hebei Shida Seal Group is able to produce custom rubber molded products with greater speed and efficiency than conventional rubber molding equipment. Utilizing superior engineering, we have the ability to work with a variety of OEM companies to design and craft customized solutions to meet the most difficult specifications with unparalleled accuracy. Our team will work with you from product concept, to prototype and design development including rubber compound selection, compression and stack-up recommendations through the ongoing production of precision custom rubber components.
There are a variety of compounds available for molded rubber parts, including:
- EPDM: EPDM exhibits excellent ozone and UV resistance in temperatures ranging from -60° F to 250° F, all of which makes it popular for use in the manufacture of outdoor equipment. However, it is vulnerable to oils, aromatic hydrocarbons, and petroleum products.
- Silicone Rubber: When processed, silicone achieves high purity levels, enabling it to be used in sensitive applications, such as food processing, medical, and pharmaceutical operations. It exhibits excellent durability—including resistance to ozone and UV radiation—but is vulnerable to grease/oil, fuel, solvents, abrasion, and tearing.
- Nitrile: Nitrile demonstrates excellent resistance to grease/oil, fuel, and solvents. However, it has poor resistance to chlorinated hydrocarbons and ketones.
With the most up-to-date computerized testing equipment, our materials undergo a full battery of tests, including:
Tensile strength- Elongation
- Compression set
- Tear strength
- Ozone Resistance
- Bond strength
- Specific gravity
We offer a variety of custom molded rubber parts designed to your specifications, including:
- Rubber seals
- Rubber gaskets
- Rubber bellows
Rubber anti-vibration grommets- Manifold grommets
- Molded seals
- Panel grommets
- Refrigeration compressor grommet
- Rubber caps
- Rubber plugs
- Bushings
- Vibration mounts
- Bumpers
- Rubber washers
- Rubber tubes
Types of Rubber Molding Methods
Our team employs different molding methods to suit different part and production specifications, including the following:
- Compression Molding: Compression molding relies on compressive force and heat to form uncured rubber into the desired shape and size. The process involves enclosing a rubber preform—i.e., a set amount of rubber material—into the mold cavity. Within the mold, the material heats up and cures, which allows it to maintain its form even once it is removed from the mold. Compared to other molding methods, compression molding holds a number of advantages. For example, it offers the lowest tool cost, fastest lead times, easiest prototyping stages, and broadest part size suitability. However, it is limited in the precision and complexity achievable in its parts; designs with complicated configuration or tight tolerance requirements are better suited for other molding methods.
- Injection Molding: Similar to compression molding, injection employs the use of high pressure and heat to force rubber into a mold. However, in these operations, the material is heated until it reaches a plastic state and then injected under high pressure into the mold cavity. Within the mold, the material is subjected to high heat and pressure, which initiates the vulcanization process. Compared to other molding methods, the injection molding process accommodates high precision, consistency, and design complexity requirements. Additionally, it readily accepts the use of automation technology to facilitate operations. However, these advantages come with a higher price tag. Since the initial and long-term equipment investment costs for injection molding operations are high, the process is better suited for high-volume runs.
Contact Hebei Shida Seal Group Today!
We have a choice of manufacturing processes to produce your highly customized OEM Molded Rubber Products efficiently and effectively, and has the ability to reverse engineer your product for you directly from a sample or develop for specific application with a wide selection of rubber compound available to satisfy your molding needs.
Our IATF 16949:2016 certified facility is fully equipped with the latest equipment and technology, providing us with the capability to manufacture precision OEM Molded Rubber Products in quantities from short run to full production runs. We have 60 vulcanizing presses and also provide value-added finishing services giving us the capability to deliver a diverse set of molded rubber parts. In addition, we offer in-house tool and mold design and manufacturing to ensure that your parts are manufactured to the most exacting requirements.
To meet customers’ exacting needs, our team of rubber experts strive to provide a cost competitive solution, within a short lead time from the design to production. If you want to contact us about any issue please call (+86)319 8032626 or send us an e-mail. If you would like to submit a proposal for consideration simply submit a quote.