High-performance 500ml flasks designed for durability, style, and superior thermal retention.
In the modern era of environmental consciousness and mobile lifestyles, the 500ml vacuum flask has emerged as a global staple. This specific capacity—roughly 17 ounces—is widely recognized as the "Goldilocks" size of hydration: large enough to quench thirst for several hours, yet compact enough to fit comfortably in car cup holders, backpack side pockets, and briefcases.
The global market for stainless steel vacuum flasks is currently experiencing a CAGR (Compound Annual Growth Rate) of over 6%. This growth is driven by a massive shift away from single-use plastics and toward durable, reusable thermal containers. Industrial demand has expanded from simple hydration to specialized applications, including food storage jars, beverage-specific flasks for yerba mate or whiskey, and highly sterilized medical containers.
As a leading China flask manufacturer, we track global shifts to ensure our clients remain ahead of the market.
Beyond standard double-wall vacuuming, the industry is moving toward triple-wall insulation and copper-lined layers to extend thermal retention to 24+ hours for cold and 12+ hours for hot beverages.
The rise of "Smart Flasks" featuring LED temperature displays, hydration reminders, and Bluetooth connectivity is redefining the 500ml segment for tech-savvy consumers.
There is a growing preference for natural materials. Our bamboo-lidded flasks and eco-friendly powder coatings meet the aesthetic and ethical demands of the European and North American markets.
Rooted in Yongkang, the "Hardware Capital of China," we represent the pinnacle of flask manufacturing.
18 Years of Professional Development: Focused on the R&D and production of kitchenware, leveraging Yongkang's industrial cluster advantages. The company accounts for a significant portion of the region's output, building a comprehensive industry chain that includes raw material sourcing, hydroforming, and automated finishing.
Scaled Manufacturing Base: Our facility boasts 20 modern production lines, including seven stainless steel hydroforming and automated transfer lines. This infrastructure allows us to maintain a US$60 million annual sales volume while targeting a 56% automation rate by 2025.
How our 500ml flasks serve diverse industries and global markets.
Enterprises in the US and Europe procure custom-logo flasks as premium corporate gifts, valuing our BSCI and Sedex certifications for ethical sourcing.
Retail giants and outdoor brands require high-durability powder coatings and BPA-free certifications (FDA/LFGB) to meet stringent safety standards.
Schools and distributors focus on our 350ml/500ml kids' range, featuring flip straws and handles designed for safety and ease of use.
With four R&D centers across Shanghai and Yongkang, we don't just manufacture; we innovate. Our team adds an average of 30 new products annually, focusing on CMF (Color, Material, Process) innovation.
Compliance & Safety: We hold global quality assurance certificates including ISO9001, FDA, LFGB, and BPA-Free testing. Being an authorized producer for brands like Disney significantly increases our reliability in high-compliance markets.
Bringing your brand vision to life through a streamlined 6-step manufacturing process.
Brand customers share their vision, sketches, or reference photos for the initial design concept.
Our engineers create detailed 3D models and technical specifications for precision manufacturing.
We produce a physical sample using 3D printing or CNC machining to verify ergonomics and look.
Once approved, we develop high-precision steel molds for mass production efficiency.
Automated lines handle the forming and coating, followed by rigorous vacuum testing.
Strategic shipping to over 80 countries, ensuring compliance with local customs and standards.
Glimpse inside our 80,000sqm facility powered by automation and precision engineering.
Versatile sizes and designs to fit every market requirement.
Choosing the right supplier for your 500ml flasks is a strategic decision that impacts brand reputation and profit margins. As a leading manufacturer in China, we offer unparalleled advantages:
Our commitment to excellence has allowed us to expand into over 80 countries, providing reliable supply chain solutions to high-end markets in Europe, the United States, Japan, and South Korea. Whether you are a startup looking for your first 500ml line or a global brand requiring millions of units, our factory has the R&D and production scale to exceed your expectations.
Yongkang Yifu
