ABOUT SUNNY
Hangzhou Sunny Commodity Co.,Ltd. specializes in supply vial flip off cap, aluminum-plastic cap, and tear off cap, and is the qualified environmentally-friendly enterprise in Zhejiang. Established in 2008, it has continued development with ups and downs for over 15 years. Now, it has 5 Aluminum Cap Stamping composite production lines, 3 injection molding composite production line, 2 assembly production lines, and multiple supporting facilities. Our company has a professional team for research and development, production and sales, and has mastered various testing methods. Our products have been certified by SGS. We now produce nearly a hundred types of series products, including flip off cap, tear-off seal, aluminum cap with plastic insert, flip top cap, seal cap for injection vial and aluminum plastic cap. In flip off cap industry, we can supply 13mm, 15mm, 18mm, 20mm, 28mm, 32mm. We can also carry out R&D and processing based on customers’ requirements to meet their personalized demands.
15 years experience
supply 13mm, 15mm, 18mm, 20mm, 28mm, 32mm
We can also carry out R&D and processing based on customers’ requirements to meet their personalized demands.

Products Description
Sunny flip off cap with special functions, such as good sealing, tight fit, easy opening, corrosion resistance and stable hygiene properties, to create various pharmaceutical vials and injection bottles that provide safe and reliable sealing solution for products. We also provide customized flip-off caps, tear-off caps and crimp seals that used in antibiotics, freeze-dried powders, vaccines and infusion preparations. Sunny have our own lab. The lab. is the core base for the R&D activities. Each order will keeps each sample, we keep all samples for 10 years. Each order suppl each test report. We are committed to providing the best service to our customers. As you know all of our flip off cap need high-quality aluminum strips, food-grade plastic materials, we cooperate with the top material factory in China. Use imported high-grade raw materials to produce flip off caps in standard sizes of 13mm, 20mm, 28mm, 32mm and other customized specifications.
Products Application
We Can Produce a Variety of Riveting Process






Sunny flip off cap with multiple process, such as Bridge-type aluminum-plastic cap, petal-type aluminum-plastic cap, circular crimping, spot riveting, rolling crimping and snap-fit assembly, to create aluminum-plastic cap and flip off cap that ensure firm assembly and excellent sealing performance. We combine the aluminum shell and plastic components tightly, preventing loosening.
Manufacture Process

Stamping, injection molding, assembly, riveting & inspection
form process is forming the aluminum shells and plastic parts in order to produce aluminum-plastic caps for pharmaceutical vials. The aluminum stripes that is stamped into cap shells, while medical-grade plastic components are formed by injection molding. These two parts are then automatically assembled and firmly connected through professional riveting to ensure tight fitting and stable structure, then it is completed into a product after being cleaned. customer requirements, printing, color coating and clean packaging can be further applied.
sorting, inspection, cleaning technology
Since precision full process machines operate automatically with minimal manual operation, they bypass the possibility of human errors seeping into the manufacturing process, leading ro defects. With codes and software programs governing the end-to-end process, the machines can deliver greater accuracy without any flaws.

Competitive advantage
The company conducted a competitive advantage analysis to identify its strengths and weaknesses compared to its rivals.
We will never cease our pursuit of customer satisfaction! We hope that friends from all walks of life come to consult, and trade with us and strive for a win-win development!
Facotry directly supply
--We can give you the best price and service
01
Free Samples
--Free samples within 1-2KGs, You just need pay for the postage
02
All-over Certifications
--We can supply MSDS, TDS, Test Report, Place of Original (Form A, Form E,etc.), SGS test, etc. certifications.
03
Strictly Quality Control
--Our strictly Quality Control Dept.,will inspect each batch of goods before loading, only after the goods qualified, it can be allowed to out of the factory.
04
--After shipped, our professional document department will serve you all the documents for you timely.
05
Customers visit the Flip off cap factory
We regularly invite our customers to visit our factory, and in order to provide better service to our customers, we also have access to the production workshop and warehouse, where we can clearly see the quality of our flip off cap products

01.What is Flip Off Cap ?
Flip-off cap (also called tear-off cap or aluminium plastic crimp cap)
Flip-off caps are used to seal injectable vials and infusion bottles
The plastic button flips off to expose the rubber stopper for needle access, without removing the aluminum shell
Basic structure of flip-off cap
Composed of three main parts: aluminum shell / flip-off button / sealing disc
Substrate (aluminum shell): thin-gauge aluminum; crimped around the vial neck to hold the entire assembly securely
Flip-off button: polypropylene (PP) or polyethylene (PE) is commonly used; color-coded by product or dosage; designed to snap off cleanly under finger pressure
Sealing disc / liner: bonded to the underside of the button or seated loosely inside the shell; provides a sterilisation barrier over the rubber stopper
02. What’s your flip off cap ?
03.Can I choose special flip off cap?
04.How can we reduce packaging waste?
Packaging plays an essential role in avoiding waste, but it's important to ensure that it doesn't become waste itself. Collaboration across the value chain is key to achieving this goal.
Sustainable design: Packaging must be designed to be fully reusable, recyclable, or compostable in order to contribute to a circular economy. We are committed to make 100% of our packaging and paper portfolio recyclable, reusable or compostable by 2030.
Less is more: Flexible plastic packaging often uses less material, such as our award-winning recyclable Strip Pouch which uses 70% less material than rigid plastic bottles of the same volume. This can help reduce waste and save resources.
05.Can packaging be sustainable?
06.How can we guarantee quality?
Always final inspection before shipment.

Common Problem
What can you buy from us?
aluminum plastic combination caps for antibiotic bottles, oral liquid bottles cap, We also specialize in the production of various medical rubber stoppers, medical bottles, and silicone gaskets.
Why should you buy from us?
Company founded in 2008, based on ‘diligence’ and sincerity’, Sunny company has been providing customer with high quality and competitively price flip off cap and other pharmaceutical and cosmetic packaging materials and has been well received by many customers.
What services can we provide?
We offer door-to-door, one-stop service to solve customs clearance issues for our clients. With a variety of transportation options, there's always a solution to satisfy your needs.
What payment methods do you accept?
We accept traditional payment methods via bank transfer, as well as innovative methods such as trading platforms, paypal.
As one of the most professional flip off cap suppliers in China, we're featured by good service and punctual delivery. Please rest assured to buy or wholesale high quality flip off cap at competitive price from our factory.
rubber stopper. injection vials. glass ampoules
As one of the leading flip off cap manufacturers and suppliers in China, we warmly welcome you to wholesale cheap flip off cap for sale here from our factory. All customized products are with high quality and low price.
Flip Off Cap, 20mm Flip Off Seal Blank Cap, Light Blue Pharmaceutical Matte Flip Off Cap Vial Seals