Plastic Cap
Sinogrinder:Your Professional Plastic Cap Manufacturer!
Xiamen Sinogrinder Houseware Co., Ltd., established in 1999, was recognized as the Global leading manufacturer for innovative salt and pepper grinder, and food packing houseware on a worldwide basis. It currently has 28 production lines. With perfect production capabilities, we are able to provide customized services to meet special needs.
Introduction of Plastic Caps
Plastic caps play an essential role in modern packaging, offering a perfect combination of practicality, safety, and aesthetic appeal. They are widely used across industries such as food, beverage, kitchenware, cosmetics, and household products. As a crucial component for sealing and preserving contents, plastic caps provide a reliable barrier against moisture, air, and contamination, ensuring that every product stays fresh and protected during storage and transportation.
Made from high-quality, food-grade materials such as PP, PE, or PET, our plastic caps meet international safety standards and are free from harmful substances. They are lightweight yet durable, resistant to cracking and deformation, and capable of withstanding temperature changes and repeated use. The precision-molded threads ensure a tight and leak-proof fit, making them suitable for a wide range of containers including bottles, jars, and spice grinders.
In the kitchenware sector, plastic caps are often paired with spice jars, seasoning bottles, and condiment containers. Their smooth finish and precise fit make everyday use more convenient—easy to open, close, and clean. Some models also include grinding or sprinkling functions, offering consumers a two-in-one design that combines storage and usability. Whether used in homes, restaurants, or food factories, these caps help maintain flavor and hygiene while enhancing the overall packaging presentation.
Customization is another key advantage. Factories can produce plastic caps in various sizes, shapes, and colors to match different packaging styles and brand identities. Logos, labels, or embossed patterns can be added to strengthen brand recognition. Surface options such as matte, glossy, or frosted finishes allow for further differentiation, while customized inner seals or liners provide additional protection for sensitive contents like spices, oils, or beverages.
From a manufacturing standpoint, our plastic caps are produced through advanced injection molding processes, ensuring precise dimensions and consistent quality. Strict quality control measures are applied at every stage—from material selection to final inspection—so that each batch meets both functional and visual standards. This factory-direct production model helps reduce costs for wholesale buyers and provides stable supply capacity, especially for large-volume or OEM/ODM projects.
Environmentally conscious buyers will also appreciate that many of our caps are recyclable and can be made from eco-friendly or biodegradable materials. This sustainable approach not only meets current market trends but also helps brands align with growing global environmental expectations.
Whether you are sourcing standard plastic caps or developing custom designs for your own brand, working directly with a reliable factory ensures flexibility, quality assurance, and competitive pricing. Our professional team supports design development, mold customization, and bulk production to meet your specific requirements. With our experience in the kitchenware and packaging industry, we aim to deliver plastic caps that combine functionality, safety, and style—helping your products stand out in both appearance and performance.
Why Choose Us
Process Scale
Our factory has 28+ injection molding machines with a daily output of up to 30,000 units.
Production Market
Our customers are both domestic and overseas. Our main sales markets: North America 20%, South America 40%, Europe 20%, Oceania 10%, Asia 10%.
High Quality
Our products meet the highest quality requirements as stipulated by FSSC22000, ISO9001, ISO14001, HACCP, SGS guidelines and our strict quality control system. We also attach great importance to raw material procurement and food safety standards.
Accept ODM/OEM Service
We offer OEM and ODM solutions to meet specific client needs, providing tailored products, custom designs, and flexible branding options to suit diverse market demands.
Advantages of Plastic Cap
Protection against Contamination
One of the primary functions of plastic caps is to protect the contents from contamination. When a bottle is sealed with a cap, it forms a barrier that prevents unwanted substances from entering the product. Whether it’s dust, dirt, or microorganisms, the cap acts as a shield, safeguarding the contents inside.Furthermore, plastic caps are designed to create a tight seal that minimizes the potential for leaks and spills.
Tamper Evidence and Safety
Another critical aspect of plastic caps is their role in ensuring product safety through tamper-evident features. Tamper-evident caps have seals or indicators that show if the bottle has been opened or tampered with. This provides consumers with peace of mind, knowing that the product they are purchasing is safe and untampered.
Extending Shelf Life
Products that are stored in bottles, such as beverages and condiments, can benefit greatly from plastic caps in terms of extended shelf life. These caps help create a controlled environment within the bottle, minimizing exposure to external factors that can lead to deterioration.
Convenience and Consumer Experience
HDPE Plastic caps offer convenience to consumers by providing a simple and efficient method of accessing the product. Caps can be easily opened and closed, allowing for easy pouring, dispensing, and resealing. The ease of use enhances the overall consumer experience and encourages repeat purchases.
Food & Beverage Industry
Our plastic caps are designed for seasoning jars, spice containers, salt and pepper shakers, and herb bottles. They provide secure, airtight seals to keep your spices fresh and dry.
Cosmetics & Personal Care
Plastic caps are used for packaging bath salts, cosmetic powders, and essential oils. Their secure closure ensures the product stays intact and easy to use.


Pharmaceutical & Nutritional Products
Used for nutritional supplements, herbal powders, and medicinal products, our plastic bottle caps offer tamper-evident and child-resistant features for safety.
Retail & Private Label Products
Plastic bottle caps are ideal for retail spice packaging, including private label spice jars, custom seasoning bottles, and herb containers. These caps are tailored to meet the demands of both consumer convenience and branding.
Travel & Outdoor Use
Perfect for travel-sized spice jars and portable containers for outdoor enthusiasts, campers, and hikers who need compact, convenient spice storage solutions on the go.
Product Parameters
|
Item Name |
Spice Bottle Lid |
|
Model No. |
C3-053M |
|
Material |
PP Lid |
|
Size |
Φ53mm |
|
Color |
Black, red, green and accept customized color |
|
MOQ |
6,000PCs |
|
Certificate |
LFGB,FDA |
|
Place of Origin |
Zhejiang, CN |
|
Application |
A variety spice powder |
|
Logo |
Accept customized color |
Customization Options
1. Material Customization
Food-safe plastics: Made from PP (Polypropylene), PET (Polyethylene Terephthalate), and HDPE (High-Density Polyethylene), ensuring safety for food storage.
Eco-friendly options: Recyclable or biodegradable plastic choices for sustainable packaging solutions.
2. Design Customization
Shape and size: Custom molds to fit your bottle dimensions perfectly. From small, compact jars to larger storage containers.
Color options: Choose from a range of Pantone colors or transparent finishes to match your brand's design.
Special features: Adjustable holes for shaker caps, ergonomic designs for easy opening, or extra-secure snap-on lids.
3. Branding & Decoration
Logo printing: We offer screen printing, embossing, and hot stamping to add your company logo or product information directly onto the cap.
Labeling: Custom labels can be applied to each lid for added brand recognition.
Custom packaging: We can also assist with designing retail-ready packaging that complements your spice jar and cap design.
4. Functional Features
Airtight seals: Keeps spices fresh by preventing air and moisture from entering.
Tamper-evident: For added security, ensuring the product has not been previously opened.
Shaker holes: Adjustable or perforated caps for controlled dispensing of spices.
Child-resistant designs: Added safety features to prevent accidental access.
Production process of Plastic Cap
Compression molding bottle cap production process
This method has no material mouth marks, low processing temperature, small shrinkage, and precise size. After the upper and lower molds are closed, the bottle cap is pressed into shape in the mold, and then demolded by rotating the rotating disk and thread.
Injection molding bottle cap production process
This method requires a larger mold and higher pressure, and the material heating temperature is higher. The mixed material is injected into the mold cavity. After cooling and shaping, the mold rotates counterclockwise to eject the bottle cap.
These processes and structural designs together ensure the sealing and opening convenience of the bottle cap.
Shipping And Delivery
Packaging Details: Carton with pallet packing
Delivery Detail: 1-30days after get payment depend on the quantity.

Our Certificate


FAQ
As one of the leading plastic cap manufacturers and suppliers in China, we warmly welcome you to wholesale custom made plastic cap from our factory. Contact us for more cheap products.

