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

Launching or expanding a private-label eyewear line through Chinese OEM manufacturers in 2026 demands a structured quality verification process to protect brand reputation and ensure regulatory compliance. China accounts for over 70% of global eyewear frame production, with the Wenzhou and Danyang clusters leading in volume output across acetate, TR90, titanium, and mixed-material frame categories. However, the quality range across factories is wide: CE certification and ISO 12870 (spectacle frames — requirements and test methods) compliance separate professional eyewear manufacturers from general-purpose accessory factories. Minimum order quantities (MOQ) have also shifted in 2026 — most factories quoting acetate frames require 100–300 pieces per style per color, while TR90 injection-molded frames have higher tooling cost amortization and typically require 300–600 pieces minimum. Titanium frames, due to CNC machining or laser cutting setup costs, range from 50–150 pieces per design with sample lead times of 20–35 working days. Understanding these parameters before entering supplier negotiations dramatically improves outcome predictability and reduces rework risk.

Quality Verification Steps Before Mass Production

The OEM quality verification process for eyewear frames should follow four stages: first, material inspection — request mill certificates for acetate (cellulose acetate or mazzucchelli grade), Grilamid TR90 resin lot numbers, or titanium alloy grade (Grade 1 pure titanium or Ti-6Al-4V); second, pre-production sample (PPS) review — check hinge action, nose pad fit, temple flex, color match to Pantone reference, and surface coating adhesion using ASTM cross-hatch tape test; third, in-process inspection — temples, fronts, and hinges should be checked at 30% and 70% completion milestones; fourth, final random inspection (AQL 2.5 for major defects, AQL 4.0 for minor) — verify dimensions against approved tech pack and confirm CE marking placement for EU markets. Each stage should be documented with photos and signed inspection reports.

Understanding MOQ and How to Negotiate Effectively

MOQ in Chinese eyewear OEM is driven by material setup, tooling amortization, and production line changeover cost. For new buyers testing a style, several tier-1 factories now offer sample orders at 1–12 pieces for prototype evaluation before committing to mass production. To negotiate MOQ reduction effectively: consolidate colorways — ordering 3 colors of the same frame shape often lets you negotiate a combined MOQ of 150 total versus 100 per color; offer a repeat order commitment in writing; pay tooling upfront, as factories are more flexible on MOQ when mold costs are separated from unit pricing. Average tooling cost for an acetate mold is USD 300–800 per style; TR90 injection molds run USD 800–2,500 depending on complexity and cavity count.

Key Certifications and Compliance for Eyewear Exporters

For frames entering the EU, CE marking per EN ISO 12870 is mandatory for optical frames and EN ISO 12312-1 applies to sunglasses. The US market requires ANSI Z80.3 compliance for sunglasses and ANSI Z87.1 for safety eyewear. Australian and NZ buyers need AS/NZS 1337 compliance. Many Chinese factories hold BSCI social compliance audits and ISO 9001:2015 QMS certification — both are worth requesting during supplier qualification. SCM Group works with eyewear factories in Wenzhou and Guangzhou that carry CE and ISO documentation and can facilitate third-party pre-shipment inspection for orders over 200 pieces, ensuring your products clear customs without delays.

Contact SCM Group

Looking for a reliable eyewear OEM partner in China? SCM Group handles sourcing, quality inspection, and logistics for custom frame orders from prototype to mass production. Reach us at scmgroup@scmgroup.online or on WhatsApp at +86-198-7525-3287. Our team in Shenzhen is ready to support your product launch from material selection through final shipment.