Selecting the optimum polymer or metallic alloy for container handling parts—starwheels, infeed scrolls, center guides, and vial pucks—determines machine reliability, container integrity, and total lifecycle maintenance costs.
1. Homopolymer Acetal (Delrin) Advantages
Virgin Delrin (Polyoxymethylene POM-H) provides exceptional dimensional stability, high stiffness, and low coefficient of friction against glass and PET containers. In high-speed packaging lines running over 350 BPM, Delrin pockets cushion vials, drastically reducing cosmetic scratching, label peeling, and micro-fractures.
2. Stainless Steel AISI 316L Longevity
Where direct chemical exposure, aggressive CIP caustic flushes, or high-temperature steam sterilization (SIP) takes place, electropolished SS 316L is indispensable. It provides infinite wear life and 100% resistance to halogenated sanitizing agents.
3. Hybrid Composite Design Approach
Vedax frequently designs hybrid format parts pairing an electropolished SS 316L structural core plate with CNC-milled FDA-approved Delrin pocket inserts. This delivers unmatched rigidity with soft container engagement and easy pocket replacement.
Implementation Recommendations
- Verify raw materials comply with FDA 21 CFR §177.2470.
- Use certified SS 316L fasteners with nylon thread locks.
- Ensure changeover tool-free thumb screws are ergonomically positioned.
Have a Technical Requirement?
Consult directly with our tooling engineers to troubleshoot container breakage, fill accuracy, or custom machine format conversions.
Request Technical Consultation +91 88660 36337