Spliced and vulcanized O-rings are made from the extruded cord stock that has been cut and bonded together, as opposed to molded O-rings that have been compression or injection molded as one piece. Vulcanized O-rings are an excellent choice for static sealing applications when molded O-rings cannot be used due to large or non-standard dimensions. Vulcanized O-rings can be made from a range of elastomers and in virtually any size or length.

Markets

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AEROSPACE AGRICULTURE

MANUFACTURING MARITIME

Advantages of Spliced & Vulcanized O-Rings

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CUSTOMIZATION

Continuous length cord is cut to a bespoke length and then hot vulcanized with a specialized bonding agent in a mold at a high temperature. This process forms the molecular bond necessary to ensure a strong joint.

PRODUCTION FLEXIBILITY

Spliced & vulcanized O-rings offer versatility in production, enabling Hercules OEM to quickly produce O-rings in various sizes and materials without the need for specialized tooling or unique molds.

INCREASED STRENGTH

The splicing & vulcanization process creates a strong bond between the ends of the cord, resulting in enhanced strength and durability. This makes spliced & vulcanized O-rings suitable for applications where a higher degree of resilience in a static application is required.

COST-EFFECTIVENESS

Spliced & vulcanized O-rings are created by joining the ends of extruded cords or extrusions, allowing for efficient production of O-rings in non-standard sizes. This can be a cost-effective solution for applications that require O-rings in unique dimensions or large sizes.

Additional Benefits of Vulcanized O-rings

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• • Molds are not required resulting in huge cost savings
• • Shorter lead times
• • Short run cost savings vs long run
• • No upper diameter restrictions like molding
• • Tolerances can be tighter than molding tolerances
• • No parting lines
• • Custom and wandering groove shapes are possible

Materials

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• • Silicone (VMQ)
• • FKM (Viton)
• • NBR (Buna)
• • EPDM

Cord Sizes

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• 0.070” • 0.103” • 0.139” • 0.210” • 0.250”

• 0.275” • 0.312” • 0.375” • 0.500” • 0.625”