High-performance PET cans, easy-open lids, and custom thermoformed solutions optimized for high-volume automated closing systems.
The global packaging sector is undergoing a profound shift toward environmental accountability, container safety, and ultra-high-speed automation. Tin can closing machines (also known as automatic can seamers) are the central hub of this evolution. Traditionally limited to metal tinplate sealing in food processing industries, modern closing machinery now accommodates hybrid materials, including PET (Polyethylene Terephthalate) cans fitted with aluminum Easy-Open Ends (EOE).
From micro-breweries in North America to major beverage manufacturers in the Asia-Pacific region, the demand for modular, multi-size, and energy-efficient can seamers is growing. With the global Ready-to-Drink (RTD) beverage market expanding at a projected CAGR of over 6.5%, exporters of advanced can seaming technology are prioritizing smart calibration, tool-less changeover systems, and IP69K washdown sanitation designs. As reliable exporters, our objective is to supply highly customizable solutions that reduce down-time, ensure oxygen-free sealing, and preserve beverage freshness.
Combining high-tensile seaming rollers with precise mechanical alignment ensures that each seam complies with tight dimensional tolerances (thickness, height, overlap). This maintains freshness and prevents leaks for both carbonated and pasteurized liquids.
Our exported equipment is designed to comply with CE, UL, and CSA standards, utilizing high-quality components from international brands like Festo, Siemens, and Omron to ensure dependable service in over 50 countries.
Exploring the engineering developments driving high-speed double-seaming technology forward.
The performance of any packaging line depends on the reliability of the double seam. A double seam is formed by interlocking the lid's flange (end) with the can body's flange in a two-stage mechanical process. Our custom closing machines feature high-precision seaming chucks and rollers designed to prevent structural stress on the container.
For PET cans, this process requires careful force management to prevent body deformation while achieving a strong hermetic seal. Metal tinplate, on the other hand, requires higher compression force to ensure structural integrity and prevent leaks.
The first operation roller curls the cover hook around the body hook, establishing the initial contact and alignment of the seal.
The second operation roller compresses the interlocked hooks under precise pressure, distributing the sealing compound evenly to eliminate microscopic paths for gas or liquid bypass.
Modern packaging lines often integrate nitrogen injection systems to reduce residual oxygen levels to under 2%. This step helps prevent product oxidation and extends shelf life.
Heavy-duty rotary seaming assembly featuring hardened steel rollers and integrated chuck calibration systems.
Established in 2021, Shanghai COPAK Industry Co., Ltd. maintains a sales office in Shanghai and an associated factory in Guangdong Province. As a professional supplier of eco-friendly food and beverage packaging solutions, our product portfolio includes PET cups, PET cans, and sealing machines, among other related items.
Committed to staying ahead of market trends through continuous innovation, COPAK delivers high-quality yet cost-effective packaging solutions. Our product range covers PET cups and cans in diverse shapes and capacities—from 1oz to 32oz—available in both plain finishes and custom printed designs. As a long-term strategic partner and trusted supplier, we dedicate ourselves to designing and manufacturing reliable, premium-quality, and stylish PET cups and cans for our clients.
Having supplied PET cup and PET cans to numerous renowned brands, our products are now distributed globally.
We provide customers with green Eco-friendly high-quality products.
Adapting machinery configurations for diverse manufacturing facilities, regulatory environments, and regional distribution needs.
Our integrated solutions help beverage businesses transition from traditional cups to sealed plastic cans, offering improved spill-resistance and freshness for retail distribution.
Integrating nitrogen-flush capabilities within the seamer helps minimize dissolved oxygen levels, preserving flavor notes and extending product stability without additives.
Semi-automatic and smart single-head closing machines provide craft beverage brands with a compact footprint, easy diameter transitions, and simple setup protocols.
Answers to common technical inquiries regarding the operation, calibration, and integration of can closing systems.
Stay updated on our latest product releases, packaging guides, and advanced sealing machine developments.
Select from our range of bulk-manufactured PET cans and clear soda bottles designed to work seamlessly with automatic closing machines.
