Best Aluminium Lidding Foil Aluminium Foil Food Containers With Lids

1. Product Overview

2. Product Specifications & Parameters

2.1 Core Specifications (Containers + Lids)

2.2 Standard Container Size Chart (Most Popular Models)

3. 3D Dimensional Drawing Details

3.1 3D Drawing Views & Annotations

• Views Provided: Top view, side view, cross-sectional view, and assembled view (container + lid).
• Key Annotations:
  • Container: Inner/outer diameter/breadth, height, wall thickness, and base reinforcement structure.
  • Lid: Edge overlap width (2mm), sealing groove (for tight fit), and optional tab (for easy opening).
• Software Format: Available in STL, STEP, and PDF (for easy sharing; no special software needed for PDF).

3.2 3D Drawing Customization

• Clients can request adjustments to 3D models (e.g., adding brand logos, modifying height/capacity) within 3 working days.
• Free 3D drawing revisions (up to 2 times) for bulk orders (MOQ ≥ 10,000 units).

3.3 Purpose of 3D Drawings

• Pre-Production Verification: Ensures container/lid dimensions match client’s packaging or heating equipment.
• Marketing & Sales: Clients can use 3D models for their own product catalogs or customer presentations.
• Quality Control: Serves as a reference for production line calibration (e.g., mold alignment).

4. Production Process Flow

4.1 Raw Material Inspection & Preparation

1. Material Sourcing: Procure 8011 series food-grade aluminium coils from certified suppliers (with batch-specific FDA/LFGB certificates).
2. Quality Testing:
   • Test aluminium coils for heavy metals (Pb, Cd, Hg) via third-party labs (SGS/Intertek).
   • Check coil thickness uniformity (tolerance: ±0.002mm) using a laser thickness gauge.
3. Coil Cutting: Slit aluminium coils into smaller rolls (width matching container mold size) using a precision slitting machine.

4.2 Container Forming (Stamping Process)

1. Mold Setup: Install custom or standard molds (CNC-machined, precision ±0.01mm) onto a hydraulic stamping press (capacity: 50-200 tons).
2. Stamping Parameters:
   • Temperature: 25°C – 30°C (room temperature, no heat required for 8011-H18 foil).
   • Pressure: 80-150MPa (adjusted by container size; higher for larger capacities).
   • Speed: 50-120 units per minute (varies by model).
3. Trimming & Deburring: Remove excess foil from stamped containers and smooth edges (prevents sharp corners).

4.3 Lid Production (Rolling + Cutting)

1. Aluminium Rolling: Pass 8011-O aluminium coils through a cold rolling mill to reduce thickness to 0.018mm – 0.025mm (soft texture for sealing).
2. Lid Cutting: Use a die-cutting machine to cut rolled foil into lid shapes (matching container dimensions) with 2mm edge overlap.
3. Sealing Groove Formation: For pressure-sealable lids, press a 0.5mm-deep groove around the lid edge (ensures tight fit with container).

4.4 Surface Treatment (Optional)

1. Anti-Stick Coating: Apply food-grade silicone coating to container interiors (for easy food release; used for oily foods like fried chicken).
   • Curing: Dry coating at 120°C for 5 minutes (ensures coating adhesion).
2. Logo Printing: Use food-safe ink to print brand logos or batch numbers on container exteriors (flexographic printing; max 2 colors).

4.5 Sterilization & Quality Check (QC)

1. Sterilization: Sterilize containers and lids with UV light (254nm wavelength) for 30 seconds (eliminates 99.9% of bacteria).
2. QC Tests:
   • Dimensional Check: Use a coordinate measuring machine (CMM) to verify 5% of each batch (ensures compliance with specs).
   • Leak Test: Fill 10% of containers with water, seal with lids, and invert for 24hrs (no leakage allowed).
   • Heat Resistance Test: Microwave 3% of samples at 700W for 5 minutes (no warping or foil melting).

4.6 Assembly & Packaging

1. Pairing: Automatically pair containers with lids (1:1 ratio) using a robotic assembly line.
2. Packaging: See Section 5 for detailed packaging steps.

5. Packaging Solutions

5.1 Inner Packaging (Individual/Group)

• Option 1 (Individual): Each container-lid pair is sealed in a food-grade PE bag (transparent; allows visual inspection).
• Option 2 (Group): 10-50 container-lid pairs per stack, wrapped in PE film (dust-proof; ideal for bulk users like caterers).
• Key Feature: PE materials are BPA-free and compliant with FDA standards (no chemical transfer to foil).

5.2 Middle Packaging (Carton Inserts)

• Material: Corrugated cardboard boxes (2mm thickness; 5-layer for heavy loads).
• Design: Custom inserts (paper dividers) to separate stacks (prevents friction and scratches on foil surfaces).
• Labeling: Each carton is labeled with:
  • Product info (model, capacity, quantity).
  • Safety marks (FDA, LFGB, “Microwave Safe”).
  • Batch number and production date (for traceability).

5.3 Outer/Logistics Packaging

• Palletization: Cartons are stacked on wooden pallets (heat-treated, ISPM 15-compliant for international shipping).
• Wrap: Pallets are wrapped with stretch film (2 layers; waterproof and anti-tip).
• Loading: Max 50 cartons per pallet (weight ≤ 300kg; avoids crushing bottom layers).
• Custom Packaging: For clients with specific needs (e.g., branded boxes, eco-friendly materials like recycled cardboard), we offer tailored solutions (MOQ ≥ 50,000 units).

6. Frequently Asked Questions (FAQ)

Q1: Are the aluminium containers and lids safe for food contact?

Q2: Can the containers be used in microwaves, ovens, and freezers?

Q3: What customization options are available?

• Size/Capacity: Custom capacities (100mL – 5000mL) and shapes (round, square, etc.).
• Surface Treatment: Anti-stick coating, logo printing (food-safe ink).
• Lid Features: Heat-sealable, pressure-sealable, or easy-open tabs.
• Packaging: Branded cartons, custom PE bags.

Q4: What is the Minimum Order Quantity (MOQ) and lead time?

• Standard models: MOQ 5,000 units; lead time 7-10 working days.
• Custom models (size/shape): MOQ 10,000 units; lead time 12-15 working days.
• Large orders (≥ 100,000 units): Lead time 20-25 working days (with 5% discount).

Q5: How do you ensure product quality consistency?

• Raw material testing (SGS-certified batches).
• In-line QC checks (dimensional, leak, heat resistance tests).
• Post-production audits (10% of each batch sampled for third-party testing).
• ISO 9001 quality management system.

Q6: Are the products recyclable?

Q7: What is your after-sales policy?

• If products fail to meet specs (e.g., leakage, incorrect dimensions), we provide free replacements or full refunds.
• Our team responds to after-sales inquiries within 24 hours (email/phone support).