Explore our premier collection of hand-crafted acetate and ultra-light titanium optical frames engineered for global optical brands, distributors, and private labels.
Integrating technological innovation, 5-axis CNC machining, and rigorous quality assurance in Shenzhen's optical core.
Located in the state-of-the-art industrial park at Fuji Land Building, our facility is equipped with fully automated production lines, multi-axis CNC machining centers, and Class 10,000 cleanrooms, ensuring stable volume output and zero-defect consistency.
Supported by over 200 dedicated employees, including a specialized 10-member R&D technical elite squad that continuously advances CAD/CAM precision tooling, ergonomic temple distribution, and bio-compatible surface plating processes.
From raw Mazzucchelli acetate procurement and mold tooling development to manual barrel hinge assembly, color tumbling, and final packaging, vertical integration yields controllable costs and 30% faster production lead times.
Understanding why 80% of world-class prescription and luxury frames originate from Shenzhen's specialized optical ecosystem.
Shenzhen optical factories leverage direct supply chains with premier raw material vendors including Italian Mazzucchelli 1849 cellulose acetate, Japanese beta-titanium wire, and German OBE hinges. This ensures structural elasticity, rich color depth, anti-allergenic skin contact, and long-term frame retention without warping.
Unlike lower-tier injected plastic factories, custom ODM acetate frames undergo precision 5-axis CNC router carving. This process achieves intricate beveling, custom lens groove bevel depth (groove angle 115°), and exact bridge dimension control within ±0.05mm tolerance, critical for seamless prescription lens fitting.
Each high-end acetate optical frame undergoes 72 hours of continuous wooden-barrel tumbling in specialized walnut shell abrasive media, followed by hand buffing by senior artisans. This achieves an indestructible mirror gloss and silk-touch tactile feel demanded by luxury eyewear labels.
Ensuring frictionless clearance across North American, European, and Asia-Pacific regulatory jurisdictions.
| Target Region | Mandatory Compliance Certificate | Key Mechanical & Material Testing Requirements | Yintai Assurance Standard |
|---|---|---|---|
| European Union (EU) | CE Marking, REACH (EC 1907/2006), EN ISO 12870 | Nickel release test (EN 16128), ISO flame resistance, bridge deformation resistance. | 100% REACH compliant, non-toxic bio-acetate option, fully certified CE documentation. |
| United States (FDA) | FDA Medical Device Registration (21 CFR 801.410) | Drop Ball Impact Resistance test for sun lenses & optical demos, Device Listing. | FDA owner-operator registered factory, drop ball certified, DDP customs clearance. |
| United Kingdom | UKCA Certification | UK BS EN ISO 12870 spectacle frame compliance, structural endurance 5000 cycles. | Complete UKCA technical file provision and pre-shipment laboratory audit reports. |
| Australia / NZ | AS/NZS 1067.1 / TGA Standards | UV400 lens spectral transmission, sweat exposure coating durability, non-allergenic test. | Lab-tested anti-corrosion plating, zero lead & cadmium hardware assembly. |
From conceptual sketch to global retail delivery in 6 streamlined engineering phases.
Our 10-member design engineering team transforms hand sketches, mood boards, or reference samples into precise 3D CAD files within 48 hours, specifying pantoscopic tilt, bridge width, and temple core thickness.
Using high-precision CNC rapid acetate machining or 3D SLA printing, physical prototypes are crafted within 7–10 business days for ergonomic fitting tests and client sign-off.
Selection of custom color laminations, wire core pattern embossing, custom titanium vacuum IP plating (Rose Gold, Gunmetal, Matte Black), and personalized acetate block extrusions.
Stamping dies, rim bending jigs, and multi-axis CNC programs are locked in. Mass production commences across automated slicing, milling, and temple wire inserting stations.
Stringent IQC on raw acetate sheets, IPQC during temple riveting, and 100% FQC checking frame symmetry, hinge tension force (min 1.5 kgf), and optical center clarity.
Custom private-label box packaging, micro-fiber cloth bundling, barcode labeling, and door-to-door (DDP) express or air-freight shipment directly to client distribution centers.
Positioning your optical brand at the intersection of material innovation, sustainability, and market demand.
Global consumers increasingly demand plasticizer-free, biodegradable cellulose bio-acetate derived from cotton seeds and wood pulp. Yintai offers 100% eco-friendly bio-acetate frames that decompose naturally within 180 days in industrial compost setups.
Combining thick-rim acetate fronts with Japanese Beta-Titanium temples (weighing under 12 grams total) delivers the perfect balance of bold retro aesthetics and featherlight all-day wearing comfort.
Our custom frames serve diverse commercial models: boutique optical chains needing exclusive store-brand collections, Direct-to-Consumer (DTC) fashion e-commerce brands, medical prescription optometry chains, and luxury accessory labels.
Clear, authoritative answers to common commercial, engineering, and manufacturing inquiries.
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