Transform ordinary plastic bottle caps into high-end, luxury packaging components with our advanced Vacuum Metallization Machine. Designed specifically for the cosmetic, beverage, and pharmaceutical industries, this system delivers a brilliant, durable metal coating on PET, PP, ABS, and other plastic caps — boosting both visual appeal and barrier performance.

Whether you need a mirror-bright chrome, a brushed aluminum, or a colored metal look, our machine ensures consistent, high-adhesion results at industrial scale. Perfect for brands seeking to differentiate their products on crowded shelves.

Industry Cap Type Benefit
Cosmetics & Perfumery Pump caps, cream jar lids, lipstick tubes Premium feel, fingerprint-resistant finish
Beverage & Spirits Bottle closures, tamper-evident caps Corrosion resistance, decorative metallic sheen
Pharmaceuticals Child-resistant caps, dropper bulbs Barrier against oxygen & moisture, tamper indication
Food Sauce and oil bottle caps Food-contact-safe coatings, extended shelf life
 
Why Vacuum Metallization for Plastic Caps?

✔ Eco-friendly alternative to chrome plating – No hazardous chemical waste or wastewater.
✔ Lightweight & cost-effective – Achieve a metal look without the weight or cost of solid metal caps.
✔ Superior adhesion – Pre-treatment chamber ensures the coating bonds tightly, passing cross-cut tape tests.
✔ Barrier enhancement – Reduces oxygen and UV transmission, preserving product freshness.
✔ Customizable colors – Base coating + metallization + topcoat enables gold, silver, copper, rose gold, and more.

Machine Technical Highlights

  • Coating Material: Aluminum, chrome, stainless steel, or custom alloys

  • Coating Uniformity: ≤ ±5% across the entire batch

  • Cycle Time: 8–15 minutes per load (depending on thickness)

  • Base & Topcoat Integration: Compatible with in-line spray systems for multi-layer finishes

  • Automation: PLC control with one-click recipe storage (no skilled operator required)

How It Works – Simple 4-Step Process

  1. Loading – Plastic caps are placed on rotating planetary fixtures inside the vacuum chamber.

  2. Evacuation – Chamber pressure is reduced to high vacuum (10⁻²–10⁻³ Pa).

  3. Metallization – High-purity metal wire is evaporated and condenses onto the caps, forming a uniform nano-layer (20–50 nm).

  4. Vent & Unload – Chamber is vented, and caps with mirror-bright finish are ready for packaging.

Optional: Pre-coating and post-topcoat spraying for enhanced durability and color.

Frequently Asked Questions

Q: Does the coating scratch easily?
A: With a proper topcoat (UV-cured or thermosetting), the finish passes steel wool abrasion tests and withstands daily handling.

Q: Can it handle irregular cap shapes?
A: Yes. The planetary rotation system ensures 360° coverage, including undercuts and knurled surfaces.

Q: Is the machine easy to maintain?
A: Very. The metal evaporation source (crucible or multi‑pocket turret) requires only occasional wire reloading – a 5‑minute task.

Q: What about leftover metal?
A: The process is near-100% material efficient. Any residue is recoverable.