Molded Rubber Parts OEM Manufactuer, Custom Rubber Molding Services

Rely on Hebei Shida Seal Group to Meet Your Custom Molded Rubber Parts Needs!

If you’re looking for a professional molded rubber parts manufacturer, contact us. Our highly skilled staff can assist you with parts design, prototyping, production, finishing, and assembly, so you don’t have to work with multiple companies. Hebei Shida Seal Group is your one stop resource for all your custom rubber molding needs.

We combine rubber-molding expertise with state-of-the-art rubber injection molding technology to produce molded rubber parts with precision and efficiency. Whether you need rubber caps, seals, mounts, bellows, or other molded rubber parts, we can take your part from design to prototype to finished product.

Types of Molded Rubber Parts

Molded rubber parts are used for an immense range of applications across a wide range of industries. Some examples of the products manufactured include:

• Rubber Bellows
• Rubber Grommets
• Rubber Diaphragms
• Rubber Expansion Joints
• Hoses & Ducting
• O-Rings and Gaskets
• Plug/Caps/Stoppers
• Vibration Isolators
• Custom Rubber Molded Bumpers & Feet
• Electrical Insulator Gaskets And Shields

Types of Rubber Molding

Hebei Shida Seal Group produces custom rubber molded parts at a greater rate than other rubber injection molding companies through the use of applicable state-of-the-art  technology. The types of rubber molding techniques we use include:

• 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 molding 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.

Rubber Molding Materials

Choosing the right material is an essential part of the engineering process. Our skilled staff will assist you in determining which compound is best suited to your needs while keeping costs in mind. Some of the most commonly used materials for molded rubber parts are:

• EPDM – A type of synthetic rubber that is weather resistant even under extremely severe conditions. It’s resistant to color fade, heat and electricity.
• Nitrile (Buna-N) – A widely used elastomer that is especially resistant to aromatic hydrocarbons, gasoline, petroleum oils, mineral and vegetable oils.
• Silicone – High performance materials that can withstand extreme heat or cold and retain flexibility with a normal temperature range of -150 F to 550 F.

Markets of Molded Rubber Parts