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30mm Plastic Water Bottle Caps Supplier
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READ MORE30mm Water Bottle Caps
This product is a 30mm plastic tamper-evident screw cap for large-diameter PET bottle packaging of mineral water, purified water, juice, and tea beverages. Compared to 28mm caps, the 30mm neck finish is typically used on production lines with faster filling speeds, larger bottle diameters, or a need for a wider fill opening — commonly found on large-volume mineral water bottles, sports drink bottles, and some hot-filled juice bottles. Bottled water/beverage factories likewise typically select caps by Neck Finish standard. This product can be customized to fit the 30mm series neck structure based on the customer's existing preform molds and blow-molding equipment parameters, without the need to redevelop the preform.
- Describe
- Parameter
- Customization
Parameter
| Product Image | Model Name | Size |
 |
brik | 500ml |
 |
rex | 458ml |
 |
prisma | 1L |
 |
slim | 1L |
 |
gemina | 1L |
 |
prisma | 330ml |
 |
prisma | 250ml |
 |
slim | 125ml |
 |
brik | 100ml |
 |
slim | 200ml |
 |
prisma | 250ml |
 |
brik | 200ml |
 |
brik | 250ml |
 |
top | 200ml |
 |
fino | 200ml |
 |
stelo | 1L |
About
Lile (Taizhou) Technology Co., Ltd.
Established in 1994, we have consistently upheld the core philosophy of "craftsmanship, quality first" and are committed to becoming a leader in the global bottle cap industry. As a China-based .30mm plastic tamper-evident water bottle caps supplier and .Custom 30mm Plastic Water Bottle Caps factory, we specialize in producing plastic bottle closures. Through continuous technological innovation and material research and development, we provide safe, reliable, environmentally friendly, and highly customized packaging solutions for a wide range of products, including beverages, foods, cosmetics, and pharmaceuticals.
As a professional source manufacturer, we have built a one-stop supply chain system from raw material procurement to production and processing, logistics and distribution, ensuring the precise connection of each link and providing partners with highly stable, timely and adaptable bottle cap solutions.
About Us
As a professional source manufacturer, we have built a one-stop supply chain system from raw material procurement to production and processing, logistics and distribution, ensuring the precise connection of each link and providing partners with highly stable, timely and adaptable bottle cap solutions.
Founded in
1993
Year
Product Varieties
30+
Types
Production Capacity
800+
Million Units
Blogs
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30mm Water Bottle Caps Industry Knowledge Extension
Lile (Taizhou) Technology Co., Ltd produces 30mm tamper-evident screw caps built for large-diameter PET bottles, covering mineral water, purified water, juice, and tea beverage packaging that run on faster, wider-opening filling lines.
Where 30mm Caps Fit Versus Smaller Neck Sizes
Moving up to a 30mm neck is usually a production decision, not a branding one. Factories tend to shift to this size when bottle volume, fill speed, or opening width start to strain a smaller cap and neck combination.
Typical smaller-neck setup
Standard-volume bottles, moderate fill speed, narrower fill opening common on everyday retail water packs.
Where 30mm caps are chosen
Large-volume mineral water, sports drink bottles, and high-speed lines that need a wider fill opening to keep line speed up.
This cap is customized to the 30mm series neck structure based on the customer's existing preform drawings and blow-molding parameters, rather than sold as one fixed universal size.
Two Structural Directions: Ambient and Hot-Fill
Not every 30mm cap needs to handle the same thermal conditions. Depending on whether the line runs ambient filling or hot filling, the sealing structure underneath the cap changes.
Standard screw cap
Built around a foamed or direct-pressure seal, suited to ambient-temperature filling of large-volume water products.
Heat-resistant type
Paired with a heat-resistant sealing liner, suited to hot-filled juice and tea beverage lines where the cap sees higher fill temperatures.
Neck Structure Customized to Your Preform
Unlike a fixed universal standard, the 30mm neck structure on this cap series is developed around the customer's own preform. That gives more flexibility for factories running a bottle design that does not sit neatly on a shelf-standard neck finish.
1
Share preform drawings and blow-molding parameters
→
2
Neck fit structure developed to match
→
3
Sample production and fit verification
Matching the Liner to Your Filling Medium
Liner choice on a 30mm cap follows the filling medium more than the bottle size. A few common directions:
- Ambient still water: foamed liner or direct-pressure sealing structure
- Hot-filled juice or tea beverages: heat-resistant sealing liner
- Carbonated beverages: liner selected against internal pressure and storage period
Final liner selection is confirmed against the customer's actual filling temperature and storage requirements before production.
Branding and OEM/ODM Alongside Neck Development
Color, logo, and printing customization can move forward in parallel with the neck fit development, so a fully custom 30mm cap does not need to wait on branding decisions to start.
Pantone color matching Embossed logo In-mold labeling Pad printing Surface printing
As a cap manufacturer, Lile (Taizhou) Technology Co., Ltd runs OEM/ODM projects with the neck structure, liner, and branding treated as one coordinated development, not separate orders stacked on top of each other.
Supply Reliability for High-Speed Bottling Lines
High-speed lines running large-volume bottles have little tolerance for supply gaps at the capping station. Raw material sourcing, production, warehousing, and logistics are managed as one continuous process, with records kept from raw material through to finished cap inspection, so any batch issue can be traced and resolved without stalling your line.
Frequently Asked Questions
Should we choose 28mm or 30mm caps for our bottles?
It depends on your bottle volume, fill speed, and opening width requirement. Larger-volume bottles and higher-speed lines more often move to a 30mm neck. Sharing your preform drawing helps confirm the right fit.
Can this cap be used on a hot-filling line?
Yes, a heat-resistant sealing liner option is available for hot-filled juice and tea beverage products. Let us know your fill temperature so the correct liner can be confirmed.
Can the neck structure be customized to our own preform?
Yes. Unlike a fixed universal standard, the 30mm neck fit on this cap is developed against your existing preform drawings and blow-molding parameters.
Do we need to redevelop our preform to use this cap?
Generally no. The cap's neck structure is customized to match your existing preform rather than requiring you to redevelop it.
How do we choose between the sealing liner options?
Liner selection follows your filling medium and storage period, ambient water, hot-filled beverages, and carbonated drinks each point toward a different liner choice.
Can color and logo customization happen while the neck fit is being developed?
Yes, branding development can run in parallel with neck fit and liner development rather than waiting for it to finish first.
Is there a minimum order quantity?
MOQ is determined based on color, logo, and packaging requirements, and is confirmed once those details are set.
Can we get samples before committing to a bulk order?
Yes, samples and small-batch trial orders are available, with lead time confirmed based on your specific neck fit and liner requirements.
Contact
Let's Work Together
© Lile (Taizhou) Technology Co., Ltd.
Stay in Touch
Toudao Town, Taizhou City, Zhejiang Province, China.
liletz@163.com
+8613706571648
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