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From minimalist drill-mount rimless structures and 3D additive titanium to ergonomic memory polymers, review our core manufacturing lines engineered for global distribution.
Combining a century-spanning optical heritage with modern CNC robotics, computerized wire cutting, and rigorous stress testing to supply independent opticians, brand owners, and multinational retail chains globally.
Unlike full-rim or semi-rimless frames that rely on external eyewires to absorb mechanical torque, three-piece drill-mount rimless frames demand exacting metallurgical standards and micro-mechanical joint stability.
We source ultra-pure β-titanium wire rods featuring exceptional elasticity modulus (105-110 GPa). This enables hyper-flexible nasal bridges that return to origin post-distortion, eliminating cyclical stress fractures around delicate lens drill-holes.
Traditional screw-and-nut assemblies cause micro-fissures in polycarbonate or 1.67 high-index lenses. Our factory utilizes medical-grade polyoxymethylene (POM) dual-prong compression sleeves that distribute tightening tension symmetrically across the hole bore.
Frames undergo a 7-stage ultrasonic degassing process before physical vapor deposition (PVD) coating. This bonds a 0.3-0.5 μm titanium-nitride protective film, achieving >96 hours of neutral salt spray (NSS) corrosion resistance against sweat and UV degradation.
| Performance Metrics | Commercial Baseline (Entry Grade) | Our Precision Rimless Manufacturing Standard | Clinical / Market Advantage |
|---|---|---|---|
| Bridge Elastic Recovery | Conventional Nickel Silver (< 65% return) | High-Grade Japanese β-Titanium (> 98.6% recovery) | Prevents lens misalignment & vertex shifts |
| Bore Hole Anchorage | Single Nut & Metal Washer Mount | Twin-Prong POM Bushing System (Screwless) | Zero spiderweb cracking on 1.67 & 1.74 MR lenses |
| Hinge Cycle Endurance | 3,000 to 5,000 cycles before slack | 25,000+ cyclic rotations (MIL-STD tested) | Virtually zero dispensary warranty claims |
| Surface Hardness & Finish | Standard Electroplating (HV 180-220) | Ion-Sputtered Multi-Layer PVD (HV > 900) | Hypoallergenic, sweat-proof, anti-fading longevity |
Optical buyers, private label designers, and chain procurement managers are shifting away from commoditized designs toward customized ergonomics and lean supply chains.
Selective Laser Sintering (SLS) of polyamide and titanium powder allows buyers to order modular rimless mountings customized to localized facial anthropometry (Asian fit, narrow bridge, wide temple spans) with zero tooling charges.
With an aging global population requiring free-form digital progressives, rimless frames offer unconstrained lens perimeter flexibility, enabling lab technicians to expand corridor depth without frame eyewire restrictions.
European and North American ESG regulations mandate transparent sourcing. Forward-looking buyers favor manufacturers offering closed-loop titanium re-smelting and bio-acetate nosepads for certified sustainable collections.
From metallurgical raw material verification to 5-axis micro-milling, our manufacturing architecture guarantees consistency across production batches.
Digital stress modeling (FEA) validates temple hinge flexural stress and bridge tension prior to mold-making, reducing physical tooling turnarounds down to 18 business days.
Our machining floor utilizes precision CNC stations achieving tolerances within ±0.02 mm, ensuring drill-mount components mate precisely with automated edgers.
100% optical inspection on endpiece alignments, salt spray corrosion verification, spring endurance testing, and biocompatibility audits prevent dispensary friction.
Download our complete B2B manufacturing spec sheet, rimless assembly technical guide, and complete OEM/ODM production catalog.
Clear technical and commercial answers designed for optical chain buyers, laboratory directors, and private label brand managers.
Standard OEM custom orders require 300 pieces per model (divided into 2-3 colorways). For ready-to-ship stock models with custom laser pad printing, our minimum order quantity starts at 100 units total.
Our drill-mount designs incorporate proprietary compression grommets with engineered shoulder buffers. This ensures steel screws or prongs never contact the brittle lens substrate directly, preventing radial star-cracks in 1.67, 1.74, and polycarbonate materials.
Yes. We provide digital vector (.DXF / .OMA) coordinate files for lens edgers (Essilor, Nidek, MEI, Santinelli). We can adjust bridge reach and temple angles to accommodate ultra-deep progressive or shallow contemporary lens layouts.
Rapid tooling and sample validation takes 20 to 25 calendar days. Mass manufacturing for precision titanium and hybrid rimless frames requires 45 to 60 days, followed by ultrasonic cleaning, inspection, and air/ocean dispatch.
All exported frames comply with EU MDR (Regulation 2017/745), CE EN ISO 12870, US FDA 21 CFR 801.410 (drop ball impact compliance), and ISO 9001:2015 quality standards. Complete declarations of conformity and material mill certificates accompany each shipment.
We provide comprehensive white-label fulfillment including custom-branded clamshell cases, microfiber polishing cloths, optical micro-screwdrivers, replacement bushing vials, and retail presentation packaging engineered to your branding guidelines.