Custom Rubber & Silicone O-Rings
Precision sealing rings from -70°C to 232°C, FDA/USP Class VI options, ID 1–2000 mm.
Overview
O-Rings are precision-engineered sealing components that prevent leakage of liquids and gases between mating surfaces. Rubbrother manufactures custom rubber and silicone O-Rings in a wide range of sizes, materials, hardness levels and specifications — from standard sizes to fully custom profiles based on your drawings or samples.
Key Features
- Wide temperature stability from -70°C to 232°C
- Excellent chemical, ozone and UV aging resistance
- Food-grade and medical-grade compounds available
- Solid, hollow and FEP/PFA overjacketed options
- Compression, injection, extrusion-splicing and cutting processes
Applications
- Automotive: cylinder seals, cooling systems, fuel injectors, A/C lines
- Medical devices: syringe seals, ventilator circuits, pump fittings
- Food & pharma: filling machines, fermenters, reactor manway seals
- Electronics: IP67/IP68 waterproof seals for controllers and connectors
- Energy: wind turbine main-shaft seals, solar trackers, pipe flanges
Specifications
- Material
- Silicone / FKM / NBR / EPDM
- Hardness
- Shore A 30–90
- Temperature
- -70°C ~ 232°C
- Standards
- FDA 21 CFR 177.2600 · USP Class VI · NSF 51 · RoHS · REACH
- Size range
- ID 1–2000 mm, cross-section 0.5–50 mm
Customization & Manufacturing
Material compounding by medium and temperature; Pantone color matching; ID 1–2000 mm; non-standard cross-sections (square, X-shape, custom profiles); compression molding for volume, extrusion-splicing for large diameters, injection molding for micro parts.
Need this part customized?
Send your drawing or sample — samples in 7-12 working days, AI-assisted quote within 24 hours.