MOQ
What is the Minimum Order Quantity (MOQ) for wholesale optical frames?
Our standard MOQ for wholesale in-stock optical frames is 100 pcs per style. Within the 100 pcs, you can mix 2–3 frame colorways. For bespoke ODM projects with exclusive 3D toolings and molds, the MOQ starts at 300 pcs per model.
RX-Ready
Are your optical frames compatible with cold-insert prescription lenses?
Yes. All Mellume optical frames feature precision CNC-milled V-grooves with a standard 0.6mm depth. They are fully compatible with cold lens insertion, progressive lenses, high-index (1.67/1.74) lenses, and standard edgers without risk of frame distortion.
Branding
Can I customize my private label logo on optical frames with 100 pcs?
Yes. We provide high-precision laser engraving on inner/outer temples, pad printing on demo lenses, and engraved metal tip end-caps starting from 100 pcs. The one-time mold fee is only $15 per style, with digital 2D/3D mockups ready within 24 hours.
Certificates
What medical device and safety standards do your optical frames comply with?
All frames comply with international standards: US FDA Class I Medical Device regulations, European CE EN 14139 / ISO 12870 (Ophthalmic Optics), UKCA, and REACH nickel-release compliance (<0.5 µg/cm²/week) for complete hypoallergenic skin safety.
Materials
What frame materials and stress-relief processes do you utilize?
We craft optical frames using Italian Mazzucchelli & Bio-Acetate, Japanese Grade-5 Beta Titanium, German stainless steel, natural buffalo horn, aerospace carbon fiber, and Swiss EMS TR90. All acetate frames undergo 45–50°C 72h stress-relief baking to prevent shrinkage or warping.
Engineering
How do you ensure hinge durability and optical frame tolerance?
Our frames utilize imported German OBE spring hinges and reinforced multi-barrel rivets, tested for >10,000 opening/closing cycles (20x industry baseline). Frame bridge and temple curvature deviation is strictly held within ≤1° tolerance (Ferragamo supplier benchmark).
Delivery
What are your sample turnaround times and bulk shipping schedules?
Blank in-stock optical samples ship in 2–3 working days. Custom logo samples take 7 working days. In-stock ready-to-ship bulk orders dispatch in 7–15 days, while newly manufactured custom production takes 30–45 days with worldwide DDP delivery.
Packaging
Can you provide custom optical hard cases and boutique packaging sets?
Yes. We offer complete boutique packaging starting from 100 pcs: clamshell protective hard cases, foldable magnetic triangle cases, high-density microfiber cleaning cloths, warranty cards, and retail barcode gift boxes.
