Name: Customized molded O Rings
Brand: Xian Meridian Material Tech Inc
Availability: InStock
Rating: 5 (1 reviews)

Description

When the standard catalogue of O-rings doesn’t satisfy size, shape, material, environment, or application requirements, a custom or non-standard O-ring becomes the necessary solution.

Customized or non-standard O-rings are engineered to meet specific application needs that cannot be addressed by standard off-the-shelf sizes. Key differences include:

Dimensions: They feature non-standard inside diameters (ID), cross-sections (CS), or both—designed when standard sizing systems such as AS568 or ISO 3601 do not offer a suitable option.
Shape and Design: These O-rings may incorporate non-circular cross-sections, large diameters, or specialized groove finishes to accommodate unique sealing geometries.
Material Composition: They are often made from specialty elastomers or compounds, selected to perform under demanding operating conditions such as extreme temperatures, aggressive chemicals, or specific hardness and color requirements.
Production Volume: Typically manufactured in smaller quantities for OEM, specialized machinery, or custom repair work, their production may involve dedicated tooling and setup processes distinct from those used for mass-produced standard O-rings.

Production Methods
We can produce molded O-rings through Traditional Fully Molded, Continuous Molding, and Serpentine Fully Molded. The following is a comparison of the three production methods.

Evaluation Criteria	Traditional Fully Molded	Continuous Molding	Serpentine Fully Molded
Production Efficiency	High	Low	High
Product Yield	High	Low	High
Unit Cost	Low	High	Low
Tolerance (per ISO 3601)	M2-M3	M2-M4	M2-M3
Static Sealing	✅ Suitable	✅ Suitable	✅ Suitable
Dynamic Sealing	✅ Suitable	✅ Suitable	❌ Not Recommended
Gas Sealing	✅ Suitable	✅ Suitable	❌ Not Recommended
Vacuum Sealing	✅ Suitable	✅ Suitable	❌ Not Recommended
High-Pressure Sealing	✅ Suitable	✅ Suitable	❌ Not Recommended
FDA / Food Grade	✅ Suitable	✅ Suitable	✅ Suitable
Key Advantages	• Highest & most consistent quality • Lowest unit cost at volume • Suitable for ALL sealing applications	• Low mold cost • Performance similar to fully molded • Suitable for all sealing applications	• Can produce IDs larger than the press plate • Single-piece construction with no joint
Key Limitations / Disadvantages	• Very high mold cost • Long lead time • High MOQ is often required	• Highest unit cost • Low production efficiency • Longer lead times due to the process	• High mold cost • Curved shape memory can increase leak risk • Not for dynamic, gas, vacuum, or high-pressure