Product Overview
This inner plug is made for edible oil PET bottles, including sunflower oil and blended oil packaging. The plug size and sealing ribs are matched to the bottle neck, while flow-control holes or a pourer outlet help reduce spillover during pouring. A pull ring can be added for first opening, and the plug is usually used with an outer cap on oil filling lines.
Technical Specifications
|
Item |
Parameter |
|
Material |
PE / PP |
|
Structure Type |
Oil bottle inner plug / flow-control stopper / Pull-out Stopper |
|
Application Range |
PET edible oil bottles, plastic oil containers, seasoning oil bottles |
|
Sealing Method |
Plug-in seal, inner plug seal, pourer outlet seal |
|
Size Range |
Fits 26/21, 29/21, 32/29, 36/29, and 42/36 neck finishes |
|
Oil Outlet Structure |
Flow-control hole, pourer outlet, pull-ring opening structure |
|
Product Weight |
Approx. 1.5–6 g |
|
Color Options |
White, natural, yellow, green; customization supported |
|
MOQ |
100,000 pcs |
Applications
- Sunflower oil bottle inner plugs
- Edible oil PET bottle sealing
- Blended oil bottle flow control
- Oil filling plant bottle plug matching
- 1L-5L oil bottle packaging
- Oil brand OEM projects
OEM / Customization Capabilities
- Size customization: Outer diameter, height, insertion depth, sealing rib size, and pull-out structure can be adjusted according to the bottle neck inner diameter.
- Structure adjustment: Flat plugs, pull-ring plugs, inner plugs, sealing plugs, or plugs with pourer structures can be developed.
- LOGO embossing / printing: Top or outer-side embossing, embossed/debossed marks, and simple symbols are supported.
- Color customization: White, natural, black, and brand colors can be customized.
- Mold development: Molds can be developed according to bottle neck samples, sealing surfaces, and insertion-force requirements.
- Sample confirmation: Insertion tightness, sealing effect, and pull-out feel can be confirmed first.
QC Process
- Raw material inspection
- Molding inspection
- Dimensional sampling inspection
- Insertion tightness inspection
- Sealing contact surface inspection
- Appearance sorting
- Packaging inspection
- Pre-shipment confirmation
- Monthly capacity is approx. 3,000,000 pcs.
- Average lead time for standard products is approx. 30 days.
- Average lead time for custom products is approx. 60 days.
- Lead time for new mold projects depends on structural complexity, mold trial progress, and sample approval time.
Quality Control
Sunflower Bottle Stopper is manufactured and inspected before shipment according to approved samples, customer drawings, and edible oil bottle plug outgoing inspection requirements. Key inspection items include flow-control outlet integrity, pull ring strength, sealing land fit, appearance burrs, and packaging integrity. Third-party inspection is accepted, and production photos or videos can be provided during manufacturing.
Frequently Asked Questions
1. What is the difference between a sunflower oil bottle plug and a regular bottle plug?
-
The focus is controlled oil dispensing, oil bottle neck sealing, and combined fit with the outer cap.
2. Can it be made with a pull ring?
-
Yes. Pull-ring opening force and break position can be tested by project.
3. How should the flow-control hole be confirmed?
-
Testing should be based on oil flow speed, bottle neck diameter, and pouring experience.
4. Is it suitable for 5L containers?
-
The inner plug size can be redeveloped according to the neck of a 5L oil container.
5. How is the insertion position controlled?
-
The insertion position should be controlled through outer diameter, sealing ribs, and insertion depth.
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