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About Elistro Dealer Program ContactEach optical frame silhouette undergoes over 120 precision manufacturing phases, meeting ANSI Z80.5, ISO 12870, and CE medical device safety standards for international optical chain distribution.
Pure titanium (CP-Ti) and high-modulus beta-titanium (Beta-Ti) alloys represent the pinnacle of optical ergonomics. Sourcing from premier Chinese clusters like Shenzhen (Henggang) and Jiangsu (Danyang) yields uncompromised precision through fully integrated aerospace-grade titanium processing hubs.
Commercially Pure Titanium (Grade 1 & Grade 2) features a density of 4.51 g/cm³, nearly half the specific weight of nickel silver and Monel. Yielding exceptional tensile strength (up to 345 MPa) with zero nickel content, our pure titanium frames provide complete dermatological biocompatibility and absolute rust immunity under saline perspiration tests (ISO 12870 compliant).
When structural components require hyper-elastic resilience, our beta-titanium formulations offer a modulus of elasticity reduced to ~82 GPa. This metallurgy delivers spring-loaded temples that comfortably conform to diverse craniofacial topologies without permanent mechanical deformation, eliminating temple pressure headaches during 16-hour daily wear.
Titanium possesses high atmospheric reactivity at elevated temperatures, oxidizing instantly above 400°C. Our state-of-the-art facilities implement sealed argon-chamber micro-laser welding stations. This keeps atmospheric oxygen and nitrogen out of the joint zone, ensuring weld junctions withstand more than 250N tensile break tests without thermal embrittlement.
A direct metallurgical comparison between Pure Titanium, Beta-Titanium, and traditional spectacle metals highlighting structural integrity and wearer comfort parameters.
| Material Classification | Specific Density (g/cm³) | Tensile Strength (MPa) | Young’s Modulus (GPa) | Corrosion Resistance | Hypoallergenic Index | Primary Optical Usage |
|---|---|---|---|---|---|---|
| Grade 2 Pure Titanium (Alpha) | 4.51 | 345 – 480 | 105 | Permanent / Extreme Passive Oxide | 100% Nickel-Free / Medical | Rims, Bridge, Hinges, Endpieces |
| Beta Titanium (Ti-Beta Alloy) | 4.75 | 850 – 1100 | 82 | Exceptional | Biocompatible / Safe | Flex Temples, Rimless Chasis |
| Austenitic Stainless Steel (316L) | 7.98 | 520 – 680 | 193 | High (Contains Cr) | Trace Nickel (May Cause Allergy) | Mid-Tier Thin Metal Frames |
| Monel / Nickel Silver | 8.80 | 400 – 550 | 160 | Moderate (Prone to greening) | Poor (High Allergen Release) | Budget Mass-Market Eyewear |
| Cellulose Acetate + Ti Core | 1.28 (Acetate composite) | Varies (Composite) | Varies | High (Surface Glaze Protected) | Naturally Skin-Friendly | Luxury Vintage Statement Lines |
Explore how every titanium frame undergoes strict ISO-certified machining, hand-polishing, and rigorous laser alignment before global export dispatch.
Every titanium batch undergoes spectral composition testing to verify titanium purity levels (≥99.2%) and eliminate hazardous heavy metal traces prior to CNC extrusion.
Frame fronts are milled with micro-tolerances of ±0.05 mm. Expert craftsmen then polish nose bridge chamfers and temple edges using Japanese ceramic and walnut shell drums.
Temples and rim joints are fused under high-purity argon gas. Afterwards, frames receive vacuum Ion Plating (IP) to deposit a 0.3μm diamond-hard titanium nitride coat.
Every finished optical piece is measured for pantoscopic angle, 4-point facial coplanarity, and hinge opening friction, ensuring hassle-free prescription lens glazing by opticians.
To maximize retail sell-through and protect gross margins, optical chain purchasing directors must adapt their purchasing portfolios to four defining technical trends.
Traditional micro-screws loosen over time. Optical buyers are transitioning towards screwless, interlocking titanium cylinder mechanisms and snap-fit hinges, drastically reducing warranty repair rates at independent practices.
With rising global myopia, frame designs feature deepened CNC rim grooves (up to 2.8 mm depth). This effectively conceals the thick edge profiles of high minus power lenses (-6.00D and higher) without needing heavy acetate rims.
Combining rich visual aesthetic with featherlight weight: Bio-based cellulose acetate (phthalate-free, certified biodegradable) layered over ultra-slim titanium wire cores has become the highest margin product category across European optical chains.
Moving beyond basic gold and gunmetal PVD, modern vacuum chambers deploy multi-layer interference coatings. These create fingerprint-resistant oleophobic finishes, matte satin textures, and rich iridescent jewel tones that never chip or flake.
We empower eyewear distributors, optical chains, and independent boutique practices by supplying completely customized, shelf-ready unboxing packaging suites with every frame order.
Our facility bridges the gap between artisan-level optical craftsmanship and scalable industrial output for brands globally.
Every frame series is shipped with documented mill certificates verifying titanium composition. Precise dimensional parameters (lens width, DBL bridge width, temple length) are laser-inscribed inside the temple for easy dispensing.
We support growing brands with low Minimum Order Quantities (MOQs) for in-stock catalog silhouettes alongside bespoke rapid tooling programs that deliver 3D CAD mockups and CNC physical samples in under 14 working days.
All eyewear components meet European REACH standards (Annex XVII for nickel release below 0.5 μg/cm²/week), US FDA medical device registration, and CE EN ISO 12870 criteria, guaranteeing seamless customs clearance.
Direct answers to the most critical technical and commercial questions optical procurement professionals ask when sourcing titanium eyewear from China.
Authentic pure titanium is verified through three primary methods: 1) Magnetism test (titanium is completely non-magnetic, unlike cheap ferritic or nickel alloys); 2) Weight-to-volume ratio (pure titanium has a density of ~4.51 g/cm³, noticeably lighter than brass or Monel at ~8.8 g/cm³); and 3) Laboratory testing (spark spectrometry or nitric acid spot testing, where titanium demonstrates total acid immunity without surface discoloration). Furthermore, genuine pure titanium frames feature clean argon micro-welds that lack the solder flux buildup common on copper-alloy joints.
Commercially Pure Titanium (CP-Ti Grade 1 or 2) contains more than 99% pure titanium. It has exceptional rigidity, high corrosion resistance, and holds optical lens bevels securely, making it ideal for frame fronts, bridges, and rim wires. Beta-Titanium is an alloy (typically Ti-15V-3Cr-3Sn-3Al) that introduces vanadium and chromium to create an ultra-low Young's modulus with high elastic memory. It is favored for flexible temples and rimless mounting posts because it flexes without bending out of shape or losing its fitting alignment.
High-end manufacturers use Ion Plating Physical Vapor Deposition (IP-PVD) within high-vacuum chambers. The titanium components are pre-cleaned via ultrasonic acid washing and bombarded with argon ions to clear microscopic contaminants. Titanium or zirconium targets are then vaporized into a plasma that bonds at a molecular level with the frame surface, creating a 0.3 to 0.5-micron ceramic coating. This finish withstands 48-hour neutral salt spray tests and sweat exposure tests with zero flaking, corrosion, or color shifts.
For ready-to-ship catalog inventory requiring custom logo pad printing or laser engraving, MOQs start as low as 50 to 100 units per model across various colors. For full OEM/ODM custom frame development (requiring custom extrusion dies, 5-axis CNC programming, and specialized PVD color formulation), the typical production run begins at 300 to 500 units per style (broken into 2–3 colorways). Tooling and prototype approvals take approximately 15 to 20 days, followed by mass production runs of 45 to 60 days.
Yes. All export production runs comply fully with the European Union Medical Device Regulation (EU 2017/745), BS EN ISO 12870 (Ophthalmic optics - Spectacle frames), and REACH Annex XVII (guaranteeing non-detectable nickel leaching under skin contact conditions). For exports to North America, our manufacturing units hold active FDA establishment registrations, and sunglass lens assemblies pass the 21 CFR 801.410 drop-ball impact safety standard.
Yes, we provide end-to-end private-label branding. This includes high-precision laser marking on the inner titanium temple core, micro-pad printing on demo lenses, custom CNC metallic crests embedded in temple tips, and full customization of our 5-piece packaging suite (hot-stamped foil logos on presentation boxes, cases, shopping bags, warranty cards, and microfiber cloths).
Directly contact our engineering and optical export desk to receive complete wholesale pricing sheets, material test reports, high-resolution product photography, and complimentary physical sample packs.
