Eyewear Frames Quality Verification & MOQ Guide for OEM Importers 2026 | SCM Group HK

For optical buyers, brand owners, and distributors sourcing custom eyewear frames from China in 2026, understanding quality verification protocols and minimum order quantities (MOQ) is essential to building a reliable supply chain. China remains the world's dominant eyewear manufacturing hub, producing over 60% of global optical frames, with Shenzhen, Wenzhou, and Dongguan as key production centers. MOQ requirements vary significantly by frame material and customization level: stock frames with logo printing start from 100 pieces per style; OEM orders with custom shapes require 300–600 pieces; full ODM development with proprietary molds demands 800–1,200 pieces depending on complexity. Understanding these thresholds—and the quality verification checkpoints associated with each tier—enables buyers to plan procurement efficiently, manage cash flow, and avoid costly rework or returns on overseas orders.

Quality Verification Stages for OEM Eyewear Frames

A robust quality verification process for OEM eyewear frames covers four key stages. First, pre-production sample review: approved samples must match specifications for dimensions (within ±0.3 mm), hinge torque (2–4 N·cm for standard hinges), temple length, and color against Pantone reference. Second, in-process inspection at 30–50% production completion checks for consistent lens aperture dimensions, hinge alignment, and surface finish uniformity. Third, pre-shipment inspection (PSI) on finished goods uses AQL 2.5 for critical defects and AQL 4.0 for major defects across a 100-unit sampling plan. Fourth, materials testing verifies compliance with EN ISO 12870 (ophthalmic requirements) and nickel content limits per EU REACH regulations for all metal frame components.

Material-Specific MOQ and Production Lead Times

Different frame materials carry distinct MOQ thresholds and production lead times. Acetate frames cut from sheet material require 300–500 pieces MOQ per color per style, with 35–45 day lead times due to CNC cutting, polishing, and barrel finishing processes. Titanium frames—both full titanium and beta-titanium—have MOQs from 200 pieces but higher unit tooling costs, with lead times of 40–60 days including electroplating. TR90 (nylon memory) frames offer the most flexible MOQ starting at 200 pieces with 25–35 day lead times due to injection molding efficiency. Mixed-material frames (acetate with metal inserts, TR90 with metal core) typically require 400+ pieces with 45–55 day production cycles.

How SCM Group Manages Eyewear Quality Verification

SCM Group's eyewear sourcing operation manages end-to-end quality verification for OEM frame orders. Our pre-production sample approval process includes dimensional verification using calibrated optical comparators and Pantone color matching against buyer-approved references. In-factory inspections are conducted by our Shenzhen-based team at key production milestones. Pre-shipment inspections follow AQL sampling standards with full photographic documentation provided to buyers before shipping approval is granted. For new suppliers, we conduct factory audits covering quality management systems, equipment calibration records, and material certifications for acetate sheets, titanium alloys, and TR90 compounds, ensuring every order shipped meets agreed specifications.

Contact SCM Group

For custom eyewear frame sourcing, sample requests, factory audit reports, and MOQ consultation, contact SCM Group HK. Our Shenzhen office manages production closely for reliable delivery. Email: scmgroup@scmgroup.online | WhatsApp: +86-198-7525-3287