Xingtai Oubei

Precision engineering

Custom O-Ring Sets & OEM/ODM Solutions

Tailored sealing solutions for demanding environments. From material selection and tooling to private-label packaging, our team supports the complete design-to-production cycle.

Custom engineered O-rings arranged by color and compound in a technical laboratory
Compound + geometry + finishDrawing controlled

Engineering workflow

Design-to-Production Workflow

A structured development path keeps application requirements, samples, tooling, and production release aligned.

  1. 01

    Consultation

    We review the application, operating media, temperature, pressure, drawing tolerances, and target volume.

  2. 02

    Prototyping

    CAD/CAM review, mold development, and rapid samples verify geometry and fit before production tooling is released.

  3. 03

    Compounding

    NBR, HNBR, FKM, FFKM, EPDM, and silicone formulations are selected around the required service conditions.

  4. 04

    Mass production

    Controlled molding, batch inspection, traceable packing, and documented release support repeatable supply.

Compound engineering

Advanced Material Selection Guide

Seal life depends on the complete service environment. These ranges are starting points; final selection is confirmed against media, pressure, motion, and regulatory requirements.

Custom sealing material temperature ranges and typical resistance
MaterialTypical rangeCommon fit
NBR (Nitrile)-40 to +120°COil and hydraulic fluids
HNBR-40 to +150°CHeat, wear, and refrigerants
FKM-20 to +250°CChemicals, fuels, and heat
FFKM-20 to +320°CAggressive chemicals and vacuum
VMQ (Silicone)-60 to +200°CFood, medical, and low temperature
Compare material families

Mold design

In-house tooling review for complex profiles, insert-molded parts, and precision sealing geometries.

Private labeling

Custom kits, identification, labels, and export-ready packaging aligned with your brand and channel.

Quality control

Material, dimensional, and visual checks are documented against agreed drawings and acceptance criteria.

Global logistics

Consolidated shipments, repeat-order planning, and flexible lot sizes support international supply programs.

Selected programs

Case Studies

Representative development paths for engineered sealing and repeat-order fulfillment.

Engineer fitting a custom blue seal into a precision metal assembly

Industrial equipment

High-pressure sealing development

A custom FKM sealing set was developed around a compact metal housing, combining dimensional review, compound selection, and fit verification before volume release.

Drawing-controlledPressure validated
Clean automated line packing custom OEM sealing components

OEM kit fulfillment

Clean, traceable private-label supply

A repeat-order program combines application-specific silicone components with controlled inspection, labeled inner packs, and export-ready outer packaging.

Lot traceabilityCustom packaging

Ready to Engineer Your Custom Solution?

Send a drawing, operating conditions, or a sample reference. Our team will review feasibility and prepare the next technical step.

Drawing reviewMaterial recommendationProduction quotation