Aluminium Screw Cap 31.5mm with PE Pourer Insert for Olive Oil Bottle
Product Overview
High-performance aluminium screw caps integrated with a two-part PE pourer insert, engineered specifically for high-volume olive oil and liquid condiment bottling.
The outer shell features premium, rust-resistant aluminium that provides a classic, upscale appearance and reliable continuous thread sealing. Inside, the food-grade PE insert is meticulously split: one part seats firmly into the glass bottle neck to serve as a precise, non-drip pourer, while the upper section remains nested inside the cap to guarantee an airtight, leak-proof primary seal before opening.
Technical Specifications
| Neck Type |
Screw Top |
| Neck Finish |
31.5x24mm, 31.5x44mm (The most recognized standard sizes in global oil packaging). Custom heights available. |
| Diameter |
31.5mm standard outer diameter. |
| Material |
Outer Cap: Premium Aluminium - Rustproof, lightweight, structurally stable, and 100% recyclable. Inner Insert: Food-Grade PE (Polyethylene) - Highly flexible for effortless insertion, chemically stable, and completely BPA-free. |
| Liner Structure |
Two-Part Integrated PE Pourer: Features a built-in oil-return groove and non-drip lip that automatically prevents oil from running down the exterior glass surface. |
Features & Options
- Tamper Evident (ROPP/Drop-ring): Visible drop-ring splits upon first open, ensuring consumer security and anti-counterfeiting control.
- Controlled Flow Pourer: Delivers a steady, controlled liquid stream.
- Surface Finish: Matte/Satin Finish, High-Gloss Glossy, Metallic Coating, or Custom Color Lacquering.
- Color: Standard Black, Dark Green, Gold, and Silver. Custom Pantone Colors are fully supported for bulk contract manufacturing.
- Logo/Printing: Screen printing, thermal transfer, water transfer printing, digital printing, UV printing.
- Application: Olive Oil, Sesame Oil, Avocado Oil, Balsamic Vinegar, Culinary Wine, Liquid Condiments.
- Packing: Export-safe master cartons with PE inner liners, stacked on ISPM-15 compliant plastic/wooden pallets.
Industry Applications
- High-End Olive Oil Estate Bottling: Empowers premium olive oil mills and independent estates to deliver a professional, mess-free dispensing experience that preserves oil freshness and protects against oxidation.
- Automated Food Packing Lines: Standardized dimensions and rigid aluminium construction ensure seamless integration with high-speed automated capper and sorter systems, preventing cross-threading or line friction.
- Gourmet Condiment Dispensing: Highly requested by manufacturers of artisanal balsamic vinegars, cold-pressed seed oils, soy sauces, and infused syrups that require controlled, clean pouring.
- Global Export Seal Protection: The dual-part PE liner structure stands up to high-vibration international sea freight, eliminating transit leakage and assuring corporate buyers that product integrity is maintained from factory to retail shelves.
Handling & Safety Precautions
- Torque & Height: Calibrate capping pressure and torque precisely. Over-tightening cracks the PE pourer; under-tightening causes spinning or leaks.
- Bottle Tolerance: PE inserts rely on interference fit with the glass neck. Ensure bottles meet CETIE or standard internal tolerances. Use our matching bottles or send dimensions for validation.
- Temperature Limit: PE pourers are rated for room-temperature and cold fills only. Avoid hot filling above 65°C (149°F) to prevent softening and seal failure.
- Storage & Handling: Aluminium shells dent easily. Stack within height limits; store in dry, cool, humidity-free conditions away from corrosive vapors to protect printing and seal elasticity.