Traditionally, large bottle manufacturers have utilized wider necks for 8-liter formats (typically 48 mm, also used for 10-liter bottles). This necessitates changing both the bottle body mold and the neck mold during format switches, resulting in increased production time. SIPA's novel approach eliminates this issue by utilizing a 38-mm neck for both 5-liter and 8-liter bottles.
This design offers several advantages:
Reduced Preform Weight: 38-mm neck preforms are approximately 6 grams lighter than their 48-mm counterparts, resulting in lower material costs.
Increased Preform Availability: 38-mm neck preforms are more readily available in the market.
Simplified Cap Sourcing: Caps for 38-mm necks are easier to procure.