Wholesale glasses manufacturers

Buyers should prioritize materials based on target market needs. For high-end markets, Acetate (Cellulose Acetate) is preferred for its durability and deep color patterns. For sports or budget lines, TR90 (Thermoplastic) offers superior flexibility and lightweight properties. For metal frames, ensure the use of Monel, Stainless Steel, or Titanium to prevent corrosion and skin allergies. Always verify that the hinge quality (e.g., OBE or Comotec hinges) meets a minimum of 20,000 fold cycles for longevity.

Compliance is non-negotiable in the eyewear industry. For the US market, products must be FDA registered and meet ANSI Z80.3 standards for impact resistance and UV protection. For the EU market, a CE Marking is required, ensuring compliance with ISO 12312-1 (for sunglasses) or EN ISO 12870 (for optical frames). Additionally, ensure materials are REACH compliant to avoid hazardous substances like lead or nickel.

Request a spectrophotometer test report to confirm UV400 protection, which blocks 99-100% of UVA and UVB rays. For polarized lenses, ask for a polarization efficiency test. It is highly recommended to use third-party inspection services to perform a Drop Ball Test (21 CFR 801.410) to ensure lens impact resistance before the final shipment leaves the factory.

A top-tier supplier should provide private labeling via laser engraving or silk-screen printing on the temples and lenses. They should support CAD/3D design services for custom frame shapes and offer a variety of lens coatings, such as Anti-Reflective (AR), Anti-Scratch, and Blue Light Blocking filters. Ensure the supplier can also provide customized packaging (cases, microfiber cloths, and boxes) to maintain brand consistency.

Utilize Secured Trading Services provided by reputable platforms like Made-in-China.com to ensure payment is only released upon confirmation of receipt. Always conduct a factory audit or request a Verified Supplier report to check the manufacturer's production capacity and business license validity. Avoid making full payments upfront; a standard 30% deposit and 70% balance against the Bill of Lading (B/L) is the industry norm.

Eyewear MOQs often range from 300 to 500 pieces per style. To lower costs, negotiate based on total order volume across multiple SKUs rather than a single model. Ask for tiered pricing (e.g., 500, 1000, and 5000 units) to understand the supplier's margin. If you are a startup, look for suppliers with 'Ready to Ship' inventory, which often allows for MOQs as low as 12 to 50 pieces.

Since glasses are lightweight but high-volume (due to cases), Air Freight is ideal for high-value optical frames to ensure fast turnover. For large wholesale orders of sunglasses, Sea Freight (LCL) is more economical. Ensure the supplier uses double-walled corrugated export cartons and individual polybags to prevent scratches and frame deformation during transit. Always clarify the Incoterms (FOB vs. DDP) to avoid unexpected customs clearance fees.