The global demand for 500ml flasks has witnessed a transformative shift, evolving from a simple utility item to a high-tech accessory essential for modern lifestyle and industrial applications. As a leading manufacturer in China, we recognize that the 500ml capacity represents the "Golden Standard" in the hydration industry—offering the perfect balance between portability and sufficient fluid intake for daily routines, outdoor adventures, and professional office environments.
In the current commercial landscape, the 500ml flask is no longer just about storage; it's about thermal performance. Utilizing advanced double-wall vacuum insulation, these flasks are engineered to maintain beverage temperatures for up to 24 hours (cold) or 12 hours (hot). This technological leap is driven by a global push toward sustainability, where enterprises and consumers alike are replacing single-use plastics with durable, reusable stainless steel alternatives.
18 Years of Professional Development: Focused on the R&D and production of kitchenware, leveraging Yongkang's industrial cluster advantages as "China's Hardware Capital" (the company accounts for 90% of national cup production) to build comprehensive industry chain capabilities.
Scaled Manufacturing Base: Expanded to 80,000 square meters in 2017, the facility now boasts 20 modern production lines, including seven stainless steel hydroforming and automated transfer lines, and a dedicated electroplating facility.
Production Performance: By 2024, our annual production capacity is expected to exceed 20 million units, with sales surpassing US$60 million. We are committed to a high-tech future, aiming for a 56% automation rate by 2025.
Global R&D Layout: With four R&D centers in Shanghai and Yongkang, we have accumulated over 110 patents. By 2025, we will add CMF (Color/Material/Process) production centers in China, South Korea, and Malaysia, focusing on differentiated product innovation.
Product Iteration: With over 120 products covering a full range of stainless steel thermoses, travel mugs, and food jars, our R&D team adds an average of 30 new products annually to meet global consumer trends.
Our commitment to AI-driven design and smart manufacturing ensures that every 500ml flask meets the highest standards of ergonomic design and thermal efficiency.
Shift towards 316 medical-grade stainless steel and sustainable bamboo components, ensuring products are BPA-free and 100% recyclable.
Advanced powder coating, 3D printing, and color-changing technologies allow brands to offer highly personalized hydration solutions.
Integration of LED touch displays on lids to monitor liquid temperature, a growing demand in the tech-savvy consumer segment.
Custom-branded 500ml flasks have become the top choice for corporate wellness programs and premium promotional merchandise.
Compliance System Certifications: We have obtained BSCI (European Union Market Access Core Certification), Sedex (Commonwealth Market Data Sharing Certification), and ISO9001. Our authorization by Disney for production has increased our global order security by 41%.
Safety Standard Certifications: We hold FDA, LFGB, and BPA-Free certifications. Our products strictly pass sensory and migration tests to meet stringent requirements in the European, American, Japanese, and Korean markets.
China, specifically the Yongkang region, remains the global epicenter for high-quality vacuum flask manufacturing. As a factory with 18 years of experience, we provide a vertically integrated supply chain that Western manufacturers cannot match. From raw material sourcing (SS 304/316) to hydroforming, vacuum brazing, and final surface treatment, every step is controlled in-house.
Global procurement managers choose us because we offer:
Step 1: Ideation
Share your brand concept or reference photos with our design team.
Step 2: Technical Design
We provide 3D renderings and material specifications for your approval.
Step 3: Sampling
Precision prototypes are created to test form, fit, and thermal function.
Step 4: Quality Check
Rigorous testing ensures the sample meets FDA/LFGB food safety standards.
Step 5: Mass Production
Automated lines manufacture your order with consistent quality control.
Step 6: Logistics
Global shipping and compliance documentation for seamless market entry.
Yongkang Yifu
