Core Structure Breakdown: Protective Metal Glasses Case
Our hard-shell metal glasses cases are precision-engineered for maximum protection and premium aesthetic. Below is the technical breakdown of our tri-layer construction:
| Layer | Material | Craftsmanship | Benefits |
|---|---|---|---|
| Exterior | 0.5-0.8mm Elastic PU (REACH Certified) | Cold-pressed & Precision Edge Folding | Soft touch, wear-resistant, and high color customizability. |
| Core | 0.4mm Rust-proof Iron | Die-stamping & Cold-forming | Superior crush-resistance and structural integrity. |
| Interior | PET/PVC Plastic + Plush Velvet | High-temp Thermoforming | Custom-molded fit for frames; anti-scratch protection. |
Why use vacuum-formed liners?
Compared to regular foam or EVA, vacuum-formed liners precisely conform to the contours of each pair of glasses, providing the snugest fit and preventing slippage. High-temperature heat pressing fuses the velvet fabric with the vacuum-formed liner, eliminating any glue odor and ensuring durability without peeling.
Why Choose Metal Sheets?
Ultimate Impact Resistance: The metal sheets we use are harder than standard ones, capable of withstanding heavy pressure from suitcases or backpacks to protect your valuable lenses.
Metal Sheet Thickness: 0.42–0.45 mm metal sheet + 0.5–0.8 mm PU leather + vacuum-formed inner lining, with a total thickness of 5–8 mm. Though thin, it is exceptionally durable.
No Deformation Over Time: Cold-press molding ensures the case retains its shape permanently, preventing it from collapsing due to changes in temperature or humidity.
Technical Specifications: Reinforced Metal Glasses Cases
| Product Type | Metal-Reinforced Hard-Shell Eyewear Case |
|---|---|
| Exterior Material | 0.5-0.8mm Elastic PU (REACH Certified) |
| Core Material | 0.42-0.45mm Anti-rust Iron (RoHS Compliant) |
| Interior | PET/PVC Blister + Plush Velvet (OEKO-TEX optional) |
| Forming Process | Precision cold-pressing & high-temp (160-180°C) thermoforming |
| Dimensions | Customizable (Standard: 160×65×30mm / 170×70×35mm) |
| Certifications | REACH, RoHS, OEKO-TEX available |
| MOQ & Lead Time | MOQ 1000 units; 10-15 days for sampling |
*Customization options: Logo branding, magnetic closure, and bespoke interior contouring are available upon request.
Product Advantages
Triple-layer shock-absorbing structure: Elastic PU absorbs impacts, a metal plate resists bending, and a thermoformed liner secures the glasses.
Custom-fit design: The thermoformed liner is molded based on the customer’s provided eyewear sample, ensuring a precise fit in every slot so the glasses do not shift.
No Adhesive Odor: The thermoformed tray and velvet fabric are fused through heat pressing, eliminating the chemical odor associated with traditional foam adhesives.
Recyclable Design: The metal plates are recyclable, and the PU leather and thermoformed tray meet environmental standards.
Premium Feel: The elastic PU leather has a soft, smooth surface, offering a more luxurious feel than standard PU.
Customization Process
Provide Physical Eyewear: Send a pair of glasses to be matched (or provide precise 3D drawings) for vacuum-formed mold development.
Confirm Dimensions and Appearance: Finalize external dimensions, PU leather color, and logo finish.
Vacuum-Formed Mold Production: Approximately 7 days to produce the aluminum vacuum-formed mold.
Prototyping: Produce 2–3 complete samples to confirm fit and feel.
Mass Production: Delivery within 25–35 days after sample approval.
Global Shipping: Air/sea freight; we support direct shipping to customer warehouses in Europe and the Americas.
Frequently Asked Questions: Metal Glasses Cases
Will the metal sheets in your glasses cases rust?
No. We utilize high-quality galvanized or eco-friendly coated metal sheets, ensuring excellent rust resistance. Our cases are designed to remain rust-free under all normal usage conditions.
Can the thermoformed inserts accommodate irregularly shaped glasses, such as cat-eye or shield-style frames?
Absolutely. We specialize in custom thermoforming. By utilizing your physical samples or technical drawings, we can design precision molds to perfectly accommodate complex and irregular frame shapes.
What is the MOQ for metal eyeglass cases?
The standard MOQ is 1,000 units. Regarding custom shapes, a mold fee is charged only once during the initial setup; all subsequent repeat orders are exempt from additional mold costs.
Do I need to provide a physical pair of glasses for prototyping?
A physical sample is typically not required; we can work with the dimensions of your glasses. If exact dimensions are unavailable, you may send us a sample pair. We will then recommend the optimal case size or customize the dimensions to ensure a perfect fit.
Does the thermoformed velvet lining shed?
No. We use premium short-pile velvet that is securely bonded to the thermoformed sheet through high-pressure heat pressing. Our rigorous quality control process includes a secondary treatment to guarantee the lining remains firmly in place without shedding.
