Explore our export-grade optical base frames engineered with built-in NdFeB magnetic housings, CNC-routed acetate profiles, and medical-grade TR90 chassis ready for multi-layer sunglass clip integration.
A rigorous examination of magnetic flux tolerances, pantoscopic tilt maintenance, and galvanic anti-corrosion barrier engineering required for Tier-1 optical retail.
We mandate high-coercivity N52SH Neodymium magnets rated for sustained operation up to 150°C. This eliminates thermal demagnetization risks inside hot automobile dashboards—a critical defect in lower-tier clip systems that causes sudden lens disengagement during highway driving.
Human sweat induces electrochemical pitting in unprotected magnet alloys. Our neodymium cores receive a triple-pass electroplating barrier (Nickel-Copper-Nickel) backed by an inert silicone resin seal, exceeding 96-hour continuous neutral salt spray (ISO 9227) anti-corrosion benchmarks.
Our clips are engineered to match the primary frame's pantoscopic tilt (8° to 12°) and face-form wrap angle (4° to 6°). This ensures the polarized clip does not induce optical prismatic imbalance, vertex distance displacement, or unwanted peripheral chromatic distortion for the wearer.
How international regulatory shifts, multi-functional lens stacking, and circular bio-polymers are redefining the commercial requirements for overseas optical buyers.
Global eyewear distributors are moving away from single-pair frame sales toward multi-functional clip suites. Standard wholesale packages now specify a single primary prescription base accompanied by 3 to 5 purpose-engineered clip attachments:
| Engineering Attribute | First-Gen Mechanical Claw Clips | Standard Commercial Magnetics | Our High-Precision Integrated Systems |
|---|---|---|---|
| Retention Mechanism | Prong tension & metal spring hooks | Exposed low-grade ferrite / N35 disc | Hermetically sealed N52SH Neodymium inserts |
| Lens Scratch Probability | Severe (direct metal contact on bevel) | Moderate (metal rim edge abrasion) | Zero (0.35mm recessed buffer & silicone pads) |
| Lateral Shear Resistance | High, but causes structural fatigue | Weak (< 2.5 Newtons; drops on jogging) | Optimized 6.8 to 8.2 Newtons (Snug hold & clean release) |
| Frame Weight Added | 14.0g – 22.0g (Heavy, drags bridge down) | 8.5g – 12.0g | Ultralight 4.2g – 5.8g (Using aerospace TAC + TR90) |
| Prescription Bevel Clearance | Restricted to thin single-vision lenses | Clips conflict with high-minus lens curves | Deep-groove clearance accommodates up to -8.00D lenses |
Combining world-class Parisian optical styling, Swiss material purity, and advanced Shenzhen manufacturing power to deliver uncompromised frame execution.
A magnetic frame system is only as reliable as its foundation. Traditional screw hinges loosen under the repeated torque applied when detaching magnetic clips. We integrate two internationally celebrated mechanical systems:
Utilizes zero threaded hardware. Eliminates temple wobbling, screw shedding, and recurring maintenance calls for optical retailers.
An internal elastic mechanism providing controlled outward flex beyond 90°, absorbing mechanical stress while returning the temple to precise original anatomical alignment.
Recognized across the Red Dot Design Award, iF Design Award, SILMO d'Or, and President's Design Award, validating our status as a genuine innovator rather than an assembler of stock open-mold models.
Every shipment is matched with batch-specific technical files: CE Medical Device Regulation (EU MDR 2017/745 Class I), EN ISO 12312-1:2022 sunglass testing, REACH Annex XVII nickel release, and US FDA 21 CFR 801.410 drop-ball certs.
From custom acetate laminations to high-precision laser-etched private branding, our Shenzhen factory supports custom magnet cavity tooling, Pantone-matched polarized tints, and bespoke eco-packaging.
Direct answers addressing technical tolerances, minimum order quantities, magnetic longevity, and laboratory validation.
No. When designing our base frames, our CNC machining protocols introduce a 0.5mm stepped bevel channel and an engineered forward vertex offset. This structural buffer accommodates high-minus prescription lens front curves (up to -8.00 Diopters) without allowing the optical lens crown to make direct contact with the polarized clip-on sheet, completely preventing optical surface abrasion.
Under conventional real-world optical use, high-grade NdFeB N52SH magnets experience less than 1% magnetic degradation over a decade. Our use of the "SH" (Super High) thermal grade ensures magnetic coercivity remains completely stable at temperatures exceeding 150°C, meaning enclosed car storage in peak tropical summers will not diminish clip-on attachment force.
For stock catalog models requiring private label laser customization, our MOQ starts at 300 pieces per style (mixed colors allowed). For fully bespoke custom frame geometry and proprietary clip tooling, our standard production run starts at 600 pieces. Turnaround for custom rapid prototypes is 12 to 15 days, with bulk mass production completed within 45 to 60 days following sample sign-off.
Our quality assurance laboratory applies a mandatory 3-Stage Retention Test: (1) An ultrasonic bath immersion test at 50°C to verify bonding integrity, (2) A robotic 20,000-cycle repeated magnetic attach/detach stress cycle, and (3) A 1.5-meter drop test onto hardwood surfaces from multiple orientations. Magnets are encapsulated mechanically within precision CNC pockets and chemically anchored with aerospace-grade structural epoxy.
Yes. Over 70% of our B2B export shipments consist of multi-lens ecosystems. We can configure specialized master packaging that houses the primary prescription frame alongside customized combinations of Polarized Cat.3, Amber Driving, Yellow Night Vision, and Clear Blue Light Blocking clips, completed with custom debossed leather cases and micro-fiber lens wipes carrying your brand logo.
Connect with our technical optical engineering team in Shenzhen and Singapore. Receive full OEM/ODM product catalogs, compliance certificates, and express physical sample kits for lab evaluation.
Inquire Now