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About Elistro Dealer Program ContactEngineered to exceed optical-lab glazing criteria. Explore high-velocity retail silhouettes built from surgical stainless steel, pure block titanium, lightweight TR90 composites, and layered Mazzucchelli-grade acetate.
Navigating structural tensile thresholds, biocompatible galvanic coatings, and CNC edge beveling tolerances required by optometrists, private label fashion houses, and health chains.
In the competitive sphere of global wholesale eyewear, procuring high-performing metal spectacle frames demands far more than surface aesthetics. OEM/ODM wholesale metal glasses manufacturing has transitioned into a discipline dominated by precision aerospace metallurgy, sub-micron computer numerical control (CNC) micro-milling, and advanced molecular surface passivation. Modern trade buyers—ranging from multi-store dispensing optometrist chains across Europe and North America to regional brand distributors in emerging hubs—require frames that simultaneously satisfy stringent structural rigidity, long-term non-corrosive skin contact, and rapid lens-mounting elasticity.
At the heart of high-yield wholesale metal eyewear production is material selection. Where legacy factories relied heavily on basic copper-nickel alloys (monel), modern precision OEM suppliers leverage AISI 316L medical-grade surgical stainless steel, pure Japanese Grade 2 Titanium, and high-spring-constant Beta-Titanium alloys (Ti-15V-3Cr-3Sn-3Al). Stainless steel provides unmatched torsional stiffness, permitting ultra-slim rim wire profiles as fine as 0.75mm without risking cold-flow deformation during the high-pressure thermal glazing of high-index polycarbonate or 1.74 ultra-thin prescription lenses.
Conversely, Beta-Titanium delivers exceptional hyper-elasticity and zero-stress memory recovery. When utilized in bridge assemblies and temple arms, Beta-Ti absorbs substantial structural deflection from repeated customer handling without retaining permanent bend fatigue. Furthermore, our metal chassis configurations maintain strict nickel-release safety compliance (EN ISO 12870 & REACH Annex XVII), assuring dispensing practitioners that prolonged dermal perspiration contact will not trigger allergic dermatitis or frame greening.
| Alloy Spec | Tensile (MPa) | Density | Hypoallergenic |
|---|---|---|---|
| Beta-Titanium | 1050–1200 | 4.5 g/cm³ | 100% Medical |
| 316L Stainless | 620–850 | 8.0 g/cm³ | EN ISO Safe |
| Aero Carbon-Ti | 950–1150 | 3.2 g/cm³ | Skin Inert |
| Cupro-Nickel Core | 420–550 | 8.9 g/cm³ | Passivated |
"PVD Ion Plating applied in vacuum cleanrooms generates an atomic-level zirconium nitride layer exceeding 500 hours of continuous salt-spray testing without micro-pitting."
How international purchasing directors are shifting procurement strategies toward modular chassis, circular metallurgy, agile replenishment, and integrated digital prescription workflows.
Global optical regulations and corporate ESG mandates are driving demand for ISO-certified recycled stainless steel and sustainably smelted titanium ingots. Commercial buyers now evaluate suppliers on closed-loop swarf recapture and eco-friendly physical vapor deposition (PVD) finishes that eliminate toxic cyanide electroplating baths.
Rather than placing unwieldy once-a-year purchase orders for 10,000 pieces of a single SKU, modern retail chains leverage hybrid replenishment models. Wholesale buyers contract base raw frames in semi-finished blanks, applying regional custom laser engraving, pantograph temple alterations, and custom acetate temple tip accents in smaller monthly batches.
The convergence of frame manufacturing with rapid free-form automated optical laboratories allows distributors to order ready-to-dispense prescription packages. Frames arrive pre-glazed with digitally optimized 1.56, 1.61, or 1.67 progressives and 4K optical blue-filtering lenses, slashing localized lens edging overheads for boutique optometry practices.
From micro-laser hermetic joining to screwless screwless frictionless barrel joints, explore the innovations redefining frame durability and end-consumer comfort.
Replacing outdated hydraulic stamping, modern frames utilize 5-axis computer-controlled milling directly from solid titanium billets, enabling ultra-sculpted variable-thickness bridge architecture.
Automated fiber-optic laser welding in pure argon shielding chambers completely eliminates visible solder slag, ensuring pristine hinge junctions that resist 30,000+ continuous flex cycles.
Multi-arc magnetron sputtering binds ceramic metal composites to the alloy base. Titanium Nitride (Gold) and Chromium Carbide (Gunmetal) coatings offer unyielding scratch and sweat immunity.
Precision-folded metal strip hinges remove micro-screws entirely. This engineering eliminates the single most common retail return failure: loose or lost screws in dispensing counters.
Combining comprehensive technical documentation, 100% bench-level inspection, complete retail unboxing suites, and true boutique craftsmanship at high industrial volumes.
Each frame front is manually trued, ultrasonic-cleaned, hinge-tensioned, and bench-aligned before dealer shipping. Zero blind-bag bulk shipments; every SKU is verified by veteran technicians for immediate customer presentation.
We publish exhaustive technical data for every SKU: exact lens width, bridge span, temple length, frame weight in grams, base curve, and rim groove depth, empowering optical lab technicians to pre-edge lenses with zero guesswork.
Enhance brand perception at no added store-level overhead. Every custom frame order can be configured with complete luxury retail collateral: branded rigid hard case, outer gift presentation box, embossed microfiber cloth, shopping carrier, and authenticity card.
Whether modifying temple contours to accommodate specific skull morphologies, developing signature knurled rims, or applying bespoke laser-etched serial numbers and logos, our design engineering studio turns custom drafts into physical tooling in days.
Design-for-Manufacturing engineering validation, structural FEA stress simulation, and 3D resin prototype confirmation within 48 hours.
High-precision diamond die drawing, automatic progressive bending of eye-rim profiles, and bridge cold-stamping calibration.
Robotic micro-laser welding under pure argon gas shields, followed by 3-stage mechanical centrifugal barrel tumbling and hand polishing.
Vacuum molecular ion sputtering, anti-fingerprint surface sealing, mechanical 20,000-cycle hinge endurance testing, and boxed dispatch.
Clear, definitive technical clarifications covering minimum order quantities, electroplating durability, tooling amortization, and regulatory compliance.
For existing tooling models in stock with custom laser logo branding, our MOQ starts at just 50 to 100 pieces per SKU. For fully bespoke OEM designs requiring new progressive stamping molds and specialized bridge tooling, our standard MOQ is 300 to 500 pieces across 2 to 3 colorways, with full tooling fee rebates upon reaching annual volume agreements.
We operate in strict conformity with EN ISO 12870, REACH Regulation (EC) No 1907/2006 Annex XVII, and US FDA 21 CFR standards. We utilize certified 316L surgical stainless steel and commercial pure titanium bases. When using cupro-nickel or monel cores, we apply an intermediate palladium-nickel barrier layer followed by thick PVD titanium ion finishing to eliminate nickel leaching.
Yes. Our technical team explicitly designs our optical rim wires with standardized 1.8mm to 2.2mm eye-wire depths and precision V-groove profiles (compatible with both 110° and 120° optical edger bevel wheels). For stronger minus prescriptions (-4.00D and above), we manufacture specialized Windsor rim hybrids and thick-gauge faceted rim profiles that conceal lens edge thickness.
We provide advanced multi-arc Magnetron Physical Vapor Deposition (PVD), IP Vacuum Ion Plating, high-speed automated gold/rhodium electroplating, and electro-deposition electrophoretic lacquers (ED). All finishes undergo rigorous cross-hatch adhesion testing, artificial sweat testing (pH 4.7 for 48 hours), and continuous 5% neutral salt-spray exposure for up to 500 hours without oxidation.
Rapid functional 3D metal/resin samples are delivered in 5 to 7 business days. CNC metal pre-production counter-samples require 15 to 20 days. Full-scale batch mass production runs generally complete within 35 to 45 business days depending on order complexity, plating specification, and whether custom molded acetate temple tips or titanium nose pads are included.
Yes. Beyond manufacturing bare spectacle chassis, our factory supplies end-to-end dealer presentation solutions: precision fiber-laser temple engraving, pad-printed inner temple technical specs, customized rigid magnetic cases, eco-friendly FSC-certified outer boxes, premium microfiber lens wipes, and custom-embossed warranty cards tailored to your brand identity.
Connect directly with our senior optical manufacturing engineers. Request current catalog access, confidential wholesale price tiers, free sample evaluation units, or initiate a custom OEM/ODM technical feasibility analysis for your upcoming collection.
