Titanium Rimless Optical Frames

Titanium rimless optical frames combine minimalist architectural aesthetics with structural stability achieved through precision laser cutting and high-tensile material selection. Engineered for optical laboratories and brand distributors, these frames eliminate full eye-wire borders by securing lenses directly via tension-mount or specialized screwless fastening systems.

Production integrates CNC wire-cutting, precision drill-hole finishing, and vacuum ion plating (IP) within a 4,500-square-meter facility operating 18 CNC milling centers and dedicated optical inspection lines. Each batch undergoes strict mechanical stress testing to ensure joint stability, meeting ISO 12870 ophthalmic optics standards for frame durability and nickel-release safety limits.

Ultra-Low Weight Profile: Finished chassis weight ranges from 7.2g to 11.5g (excluding lenses), reducing nasal bridge load for long-term daily wear.

Drill-Mount Structural Stability: Optimized bridge lug designs distribute lens-mounting torque evenly, minimizing chipping or stress fractures in high-index polycarbonate and Trivex lenses.

Screwless & Barrel Hinge Options: Available in traditional 3-barrel mechanical joints or proprietary tension-secured hinge blocks that eliminate screw loosening from vibration or daily folding.

Hypoallergenic Corrosion Resistance: Fully biocompatible raw materials prevent skin irritation and resist degradation from facial acids, salt spray, and perspiration.

Custom Optical Geometries: Bridge widths, pantoscopic angles, and temple lengths can be adjusted to fit diverse global demographic facial metrics.

Plaintext
[Raw Ti-3Al-2.5V Rod/Sheet]
[CNC Laser Cutting & Milling (Tolerances within +/-0.02mm)]
[Drill-Point Deburring & Ultrasonic Surface Polishing]
[Vacuum Ion Plating (IP) / Laser Marking]
[Manual Assembly & Hinge Torque Calibration]
[Optical Alignment & Stress Inspection]

The manufacturing process prioritizes material elasticity retention. Unlike stamped nickel-silver or standard monel alloys, titanium requires controlled thermal annealing during bridge forming to eliminate internal mechanical stress. Lugs are CNC-machined directly from solid bar stock rather than cast or soldered, eliminating weak points at the critical lens-attachment junction. Temples utilize beta-titanium strips cold-drawn to achieve a tensile strength exceeding 850 MPa while maintaining elastic memory for self-adjusting facial grip.

Eye Shapes Available: Rectangular, Oval, Pantos (P3), Square, and Custom Geometric silhouettes based on STEP/IGES CAD files provided by the client.

Standard Dimensions:
• Lens Width (A): 48mm, 50mm, 52mm, 54mm
• Bridge Width (DBL): 16mm, 18mm, 20mm
• Temple Length: 135mm, 140mm, 145mm, 150mm

Color Finishes: Matte Silver, Glossy Silver, Electroplated 18K/24K Gold, Gunmetal Gray, Rose Gold, and Matte Black via physical vapor deposition (PVD).

Private Labeling: Laser engraving or chemical etching of brand logos, model numbers, and eye/bridge sizes on the inner temple or bridge back.

Custom Tooling: Development of proprietary bridge shapes, unique temple core patterns, or proprietary screwless locking mechanisms based on client industrial design (ID) packages.

Prototype Turnaround: 3D-printed titanium selective laser melting (SLM) prototypes or CNC-machined physical samples delivered within 10 to 14 business days.

Packaging Customization: OEM hard cases, microfiber pouches, branded cleaning cloths, and custom outer folding carton sleeves printed with GS1 barcode compliance.

Production capabilities rely on a vertically integrated factory floor housing specialized optical tooling equipment:

Machining: 18 CNC vertical milling and wire-EDM machines achieving dimensional accuracy down to +/-0.02mm.

Plating Testing: Spectrophotometer coating thickness analysis and 48-hour neutral salt spray (NSS) corrosion testing to verify IP plating adhesion.

Mechanical Testing:
• Hinge Fatigue Test: Automated cycling test executing 20,000 continuous open-close cycles without spring tension loss or joint loosening.
• Temple Bending Test: Elastic recovery verification by deflecting temples outward by 30 degrees for 500 cycles.
• Drill-Mount Stress Test: Controlled torque application to verify bridge stability under lens mounting pressure.

Regulatory Compliance: CE marked (Regulation (EU) 2017/745 for medical devices / general eyewear guidelines), FDA registered facility, and ISO 9001:2015 certified quality management system.

Prescription (Rx) Optical Retail: Direct integration with digital surfacing labs for progressive, single-vision, and office-lens fittings.

Corporate & Professional Eyewear Lines: Lightweight corporate uniform optical programs requiring understated aesthetic profiles and hypoallergenic durability.

Medical & Laboratory Workwear: Frames resistant to chemical sanitization agents and continuous daily sterilization protocols.

Direct-to-Consumer (DTC) Brand Portfolios: Stocking lightweight premium tiers for online optical brands requiring reliable drop-shipping or bulk wholesale fulfillment.

Minimum Order Quantity (MOQ):
• Standard Catalog Models (OEM Brand Print): 100 pieces per model (mix of 3 colors allowed).
• Custom ODM / New Tooling Projects: 300 pieces per model.

Production Lead Time:
• Sample Orders: 10-14 days.
• Bulk Production (100-1,000 pcs): 30-35 days; (1,000-5,000 pcs): 40-45 days.

Standard Packaging: Each frame is encased in a protective polyethylene sleeve, fitted with a paper sleeve spacer, packed in individual polybags, and organized in 20-piece inner boxes. Master cartons contain 200 units (dimensions: 52 x 35 x 30 cm, gross weight approx. 11 kg).

Shipping Terms: FOB Shenzhen/Hong Kong, EXW, or DDP air/sea freight routing coordinated with designated freight forwarders.

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