INDUSTRY COMPONENT

Aluminum Crimp Cap

Aluminum crimp cap for sealing pharmaceutical vials with tamper-evident closure

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Component Specifications

Definition
A precision-engineered aluminum component designed to create a hermetic seal on pharmaceutical vials through crimping technology. It provides both primary containment integrity and tamper-evidence functionality in pharmaceutical packaging systems.
Working Principle
The aluminum cap is placed over the vial's rubber stopper and glass neck, then mechanically crimped using specialized equipment. The crimping process deforms the aluminum skirt around the vial's flange, creating a permanent mechanical lock while maintaining compression on the rubber stopper to ensure seal integrity.
Materials
Aluminum alloy 1100 or 3003, typically 0.2-0.3mm thickness, with optional epoxy or thermoplastic liner for enhanced sealing
Technical Parameters
  • Height 6-12mm depending on application
  • Diameter 13mm, 20mm, 28mm (standard pharmaceutical sizes)
  • Liner Type PTFE-faced rubber, Buna-N, or silicone
  • Crimp Profile Single or double fold
  • Surface Finish Anodized or lacquered for corrosion resistance
Standards
ISO 8362-4, ISO 8871, DIN 58366, USP <381>

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Aluminum Crimp Cap.

pharmaceutical crimp caps vial sealing caps aluminum vial closures tamper-evident caps sterile packaging components Aluminum Crimp Cap Aluminum Crimp Cap in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Pharmaceutical Vials

Sterile glass or plastic containers designed for storing and dispensing pharmaceutical products, vaccines, and injectable medications.

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Engineering Analysis

Risks & Mitigation
  • Incomplete crimp leading to seal failure
  • Aluminum corrosion from aggressive formulations
  • Particulate generation during crimping
  • Inconsistent crimp force affecting seal integrity
FMEA Triads
Trigger: Incorrect crimping tool settings
Failure: Leaking seal or cap detachment
Mitigation: Regular calibration of crimping equipment and visual inspection systems
Trigger: Material fatigue from repeated sterilization
Failure: Crack formation in aluminum skirt
Mitigation: Implement maximum sterilization cycle limits and material testing protocols
Trigger: Incompatible liner material with drug formulation
Failure: Chemical degradation and seal compromise
Mitigation: Conduct compatibility studies during product development phase

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1mm on critical dimensions, crimp height variation ≤0.3mm
Test Method
Helium leak testing <1x10^-6 mbar·L/s, seal integrity testing per ASTM F2338, extractables testing per USP <1663>

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Frequently Asked Questions

What is the purpose of the aluminum crimp cap in pharmaceutical packaging?

It provides a hermetic seal to maintain product sterility, prevents contamination, and offers tamper-evidence to ensure patient safety.

Can aluminum crimp caps be used with different vial materials?

Yes, they are compatible with glass vials (Type I, II, III) and some polymer vials, but crimping parameters must be adjusted accordingly.

How are crimp caps removed from vials?

They require specialized decapping tools or pliers that cut through the aluminum skirt without damaging the vial or contaminating the contents.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Alignment Notch Aluminum hydroxide polymer