Eyewear Frame Quality Verification & MOQ Guide 2026: Acetate, Titanium & TR90 | SCM Group HK

Eyewear frame OEM sourcing from China in 2026 offers buyers access to three dominant material platforms—acetate, titanium, and TR90—each with distinct quality verification requirements and MOQ structures. China manufactures over 60% of global optical frames, concentrated in Wenzhou for metal frames, Shenzhen for fashion and acetate, and Danyang for lenses and complete eyewear. Understanding quality verification protocols and realistic MOQ expectations is essential for brands placing first or repeat orders. Acetate CNC frames typically require 50–100 pieces per style for initial sampling and 200–500 pieces for production runs. Pure titanium frames carry higher per-unit tooling and material costs, with MOQ starting at 100–200 pieces. TR90 injection-molded frames have the lowest MOQ threshold, often starting at 300–600 pieces per style with strong cost advantages on larger runs. SCM Group HK manages eyewear frame custom orders from Shenzhen, coordinating material sourcing, tooling, sampling, and QC inspection for global optical brands.

Quality Verification Protocol for Each Material

Acetate frames should be verified for: thickness consistency (±0.1mm tolerance), color and pattern alignment across batches, temple hinge strength (minimum 50,000 open/close cycles), and absence of surface voids or bubbles. Titanium frames require: purity documentation (Grade 1 or Grade 5 titanium), electroplating adhesion test via cross-hatch method, corrosion resistance by salt spray test for at least 96 hours, and precise nose pad fitting measurements. TR90 frames should be tested for: impact resistance at 1.5J drop test, UV resistance after 500 hours xenon lamp aging, color fastness, and hinge screw torque retention. SCM Group HK coordinates independent third-party inspection through SGS or Bureau Veritas prior to each shipment.

MOQ Negotiation and Sample Strategy

For new brand launches or product line extensions, ordering strategy matters significantly. A proven approach for 2026: begin with a prototype run of 3–5 sample pairs per colorway (no MOQ minimum, charged at prototype pricing); confirm material, hinge mechanism, and fitting comfort; then place a pilot order at reduced MOQ—50–100 pieces for acetate, 100–200 pieces for titanium, 300 pieces for TR90—for market testing before committing to full production quantities. Factories increasingly accept lower pilot MOQs from verifiable wholesale buyers and established brands with audit history. SCM Group HK's supplier relationships allow buyers to access factory MOQ terms 15–30% below open-market minimums due to our consolidated order volumes and long-term factory partnerships.

Documentation and Compliance Requirements

For CE marking under EU optical directive EN ISO 12870, buyers must ensure factories provide frame and lens conformity documentation. For FDA 21 CFR 886 compliance in the US market, importers may require factory SGS test reports on all materials. All shipments via SCM Group's Hong Kong entity include commercial invoice, packing list, and factory test certificates. Customs compliance documentation is managed through our Shenzhen company for smooth export clearance. Brands requiring private-label packaging, anti-counterfeit tags, or CE declaration of conformity can request these services as part of our integrated order management workflow.

Contact SCM Group

SCM Group HK specializes in custom eyewear frame OEM orders—acetate, titanium, TR90, and metal alloy—from Shenzhen-based factories. Our minimum engagement includes a free DFM review and 3 prototype samples. Contact us at scmgroup@scmgroup.online or WhatsApp +86-198-7525-3287 to discuss your frame project.