Engineered for high mechanical stability, featherweight comfort, and turnkey OEM/ODM customization across retail, sports, and safety sectors.
Navigating the transition from traditional full-rim assembly to ultra-precise half-frame mechanics requires specialized tooling, metallurgy, and stringent quality control protocols.
Semi-rimless eyeglasses rely heavily on the stability of lower-rim suspension. Our automated grooving systems ensure precision down to 0.55mm depth and 0.6mm width, pairing military-grade fluorocarbon wire with up to 18kg tensile breaking strength to prevent unexpected lens dropouts under dynamic impact.
Combining Mazzucchelli-grade acetate brow bars with aerospace beta-titanium chassis requires zero-tolerance cold working. Our 5-axis CNC facilities in Shenzhen maintain dimensional accuracy within ±0.02mm, mitigating stress concentrations along the lens periphery and extending life cycles.
Eliminate loose screw complaints permanently. Leveraging Urband’s patented engineering, our semi-rimless frames incorporate custom screwless locking mechanisms and Active Hinge flexure joints, offering frictionless 25-degree hyperextension that restores original temple alignment automatically.
| Structural Architecture | Primary Material Blend | Weight Metric | Rx Power Tolerance | Key Buyer Segment |
|---|---|---|---|---|
| Classic Browline Semi-Rimless | Cellulose Acetate + Monel/Cupronickel | 18.5g - 24.0g | -6.00D to +4.00D | High-end Optical Boutiques, Retro Brands |
| Ultralight Executive Semi-Rimless | Japanese Beta-Titanium + Nylon Wire | 9.2g - 13.5g | -8.00D to +6.00D | Corporate Prescription Chains, Optometry Clinics |
| Sport-Performance Half-Frame | Swiss Grilamid TR90 + Polycarbonate | 16.0g - 21.0g | Plano to -4.00D (Rx Clip) | Outdoor Brands, Cycling & Fishing Labels |
| Active Hinge Children/Youth Hybrid | Flexible TR90 + Medical Grade Silicone | 11.0g - 14.5g | -5.00D to +3.00D | Pediatric Eye Clinics, Specialty Distributors |
As international market demands shift toward hyper-customization, eco-sustainability, and technical versatility, procurement directors must account for five pivotal operational vectors.
Global optical retail conglomerates are enforcing strict ESG supply-chain audits. By 2026, over 45% of procurement tenders mandate phthalate-free, bio-acetate (derived from cotton seed fibers and wood pulp) alongside recycled titanium cores, requiring ISO 14067 carbon footprint documentation from Tier 1 Chinese exporters.
The aging demographic in North America and Western Europe is accelerating demand for high-addition progressive lenses. Semi-rimless factories must provide specialized edge-bevel tooling specifications for high-index 1.67 and 1.74 MR-7/MR-8 lenses, mitigating edge chipping along the open lower periphery.
Inventory risk reduction is driving smaller initial test orders. Modern manufacturing lines now deploy modular mold systems, allowing brands to order mixed-color runs as low as 300 pieces per SKU while maintaining wholesale price parity through standardized bridges and endpieces.
Unifying optical retail heritage, multi-national design studios, and heavy industrial manufacturing under a streamlined international governance framework.
Founded by Yang Wah Kiang, who honed lens-grinding precision in 1950s Singapore and co-established Nanyang Optical in 1960. We design frames with deep optician insight into focal positioning and real-world lens fitment.
Corporate HQ in Singapore, advanced creative design in Douvres-la-Délivrande, France, coupled with manufacturing facilities and QA logistics in Shenzhen, China, ensuring seamless multi-timezone account coverage.
Validated by 14 design awards, 6 nominations, and 1 invited recognition across the iF Design Award, Red Dot Award, SILMO d'Or, and President's Design Award, giving your brand immediate aesthetic credibility.
No generic paperwork. We deliver model-specific batch test reports including CE marking, EN ISO 12312-1 certification, full REACH chemical screenings, and ANSI Z87.1 optical impact compliance documentation.
Direct answers covering mechanical stability, production lead times, structural engineering, and shipping protocols.
Our factories utilize UV-stabilized fluorocarbon monofilament cord subjected to accelerated weathering and cyclic load tests (20,000 cycles). Furthermore, each lower groove is chamfered with specialized diamond-tipped cutter heads to remove sharp glass-cutting edges that cause premature line snapping.
For custom OEM acetate-metal combinations, prototype 3D models and CNC resin samples are delivered within 10 to 14 business days. Mass production standard MOQ begins at 300 units per colorway (900 units total model run), with typical delivery spanning 45 to 60 days following sample sign-off.
Yes. By utilizing our proprietary bridge offset calculations and bevel-angle calibrations, optical labs can fit prescriptions up to -8.00D with 1.67 or 1.74 high-index materials. We supply full edging specification sheets (including ideal groove depth, width, and base curve recommendations) to ensure flawless lab glazing.
Every frame exported to the European Union and North America strictly complies with EN 16128 and REACH Annex XVII nickel release thresholds (< 0.5 μg/cm²/week). We use medical-grade pure titanium, beta-titanium, and nickel-free ionic PVD vacuum plating across all direct skin contact points.
Traditional hinge screws account for more than 35% of customer post-sale warranty returns due to backed-out screws or stripped threads. Urband’s patented screwless hinge architecture eliminates loose components entirely, dramatically reducing retail return rates while maintaining smooth, lifetime temple tension.
Shipments arrive complete with verified Declaration of Conformity (DoC), CE certification, FDA registered medical device documentation, drop-ball impact test certificates, and traceable material lot reports, facilitating zero-delay customs clearance at European and North American ports of entry.
Connect directly with our optical engineering and export team to discuss custom tooling, requested material specifications, and wholesale volume pricing.
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