Explore our flagship 18/8 stainless steel double-wall vacuum insulated cups, tumblers, and outdoor flasks engineered for optimal thermal retention and durability.
The shift from single-use plastics toward high-performance, reusable austenitic stainless steel metal cups represents a structural transformation in global consumer behavior and corporate procurement.
Global environmental mandates and heightened consumer awareness are accelerating the replacement of single-use plastic bottles with food-grade metal cups. International brand owners, outdoor retailers, and promotional product distributors increasingly demand double-wall vacuum insulated drinkware that combines zero-toxin safety with long-lasting thermal retention performance.
Modern thermal vessel manufacturing relies heavily on premium grade 18/8 (SUS304) stainless steel, containing 18% Chromium and 8% Nickel. This alloy offers exceptional corrosion resistance, zero flavor transfer, and structural resilience under physical stress. Premium lines also incorporate 316 surgical-grade stainless steel for inner liners to handle acidic beverages like cold brew coffee and carbonated energy drinks.
The core advantage of high-end metal cups lies in ultra-high vacuum technology (less than 10-4 Pa extraction between inner and outer shells). By eliminating air molecules within the double-wall space, thermal conduction and convection are minimized. Furthermore, internal wall copper-plating reflects radiant heat, keeping cold drinks iced for over 24 hours and hot coffee warm for up to 12 hours.
Leading Metal Cup Manufacturer Located in Wuyi County, Zhejiang Province, China
Wuyi Dongyi Dailysupplies Co., Ltd. is specialized in the production, research, and development of high-quality food-grade stainless steel tumblers, mugs, bottles, cups, jugs, and containers. Operating from the hardware industrial hub of Wuyi County, Zhejiang Province, our facilities support both double-walled vacuum insulation construction and robust single-wall vessel manufacturing.
Equipped with advanced automated deep-drawing hydraulic presses, high-vacuum extraction lines, laser welding cells, and automated powder coating systems, our plant strictly enforces ISO9001 quality management protocols. Our dedicated R&D engineering team continuously innovates functional leak-proof lids, ergonomic handles, and durable surface treatments that empower global brands across North America, Europe, South America, the Middle East, and Southeast Asia.
Situated at the center of Zhejiang's stainless steel hardware cluster, our manufacturing operations deliver unmatched agility, cost efficiency, and end-to-end quality control for high-volume B2B orders.
Our location in Wuyi provides immediate access to premier stainless steel coil suppliers, custom silicone gasket molders, and non-toxic BPA-free plastic resin converters. This cluster density reduces raw material transit times to less than 24 hours, stabilizing lead times even during global peak seasons.
From initial metal disc punching and hydraulic deep drawing to automatic necking, thread forming, and robotic laser welding, our manufacturing process eliminates human error while maintaining dimensional tolerances within ±0.05mm across millions of units.
Whether processing custom PMS color powder coatings, 3D UV digital prints, laser engraving, or intricate hydro-dipping patterns, our flexible assembly lines allow seamless transitioning between short-run custom batches and multi-container mass production orders.
Our R&D roadmap focuses on sustainable material integration, enhanced ergonomic lid designs, smart thermal monitoring, and eco-friendly surface finishing technologies.
To further upgrade user experience, our next-generation metal cups feature internal ultra-thin ceramic coatings. This inert barrier completely insulates sensitive liquids (such as matcha tea, espresso, and craft beer) from metal contact, delivering zero flavor distortion while remaining completely scratch-resistant and dishwasher-safe.
Innovating beyond standard push-in lids, our engineering team has introduced multi-function 3-way rotation lids with integrated magnetic straw covers, real-time LED temperature indicators, and pressure-equalization valves to prevent splashback when opening hot beverages.
Our diverse range of metal cups and vacuum vessels are custom-engineered for specific market sectors, regional lifestyle preferences, and outdoor environments.
Designed with slim tapered bases, our 20oz, 30oz, and 40oz insulated quenchers fit securely into standard vehicle cup holders. Equipped with comfortable ergonomic handles and flip straws, they serve mobile professionals and daily urban commuters across North America and Europe.
High-capacity 32oz, 48oz, and 64oz vacuum flasks engineered with powder-coated sweat-proof exteriors and double-seal caps cater to extreme outdoor enthusiasts, hikers, and campers who require reliable hydration under extreme temperature variations.
From 8oz mini Yerba Mate gourds designed specifically for South American markets to chic egg-shaped wine tumblers and insulated beer steins (10oz to 24oz), our ODM division develops region-tailored products matching unique cultural drinking customs.
We deliver a seamless, transparent 6-step collaborative production path from initial consultation to global delivery, ensuring high compliance and rapid time-to-market.
Submit your product specifications via email or form. Our technical sales team reviews requirements, capacity needs, target price points, and intended destination market regulations.
Receive comprehensive commercial quotes with itemized costs for tooling, custom surface coatings, logo branding (laser, screen print, 3D print), and packaging specifications.
Obtain detailed 2D/3D technical drawings and physical pre-production samples. Validate thermal insulation curves, lid seal ergonomics, and custom PMS color matches.
Upon order placement, raw 304 SS coils undergo automated deep drawing, vacuum degassing at high temperature, copper plating, and strict quality control at each station.
Access online video inspections or third-party (SGS, TÜV, Intertek) on-site auditing. Products undergo 100% thermal retention testing and drop tests prior to packing.
Enjoy comprehensive export logistics management including ocean freight, customs clearance documentation, and long-term after-sales quality warranty guarantees.
Our factory adheres to strict international food contact standards, safeguarding your brand reputation in global retail markets.
All our insulated tumblers and sport bottles hold CE certification, meeting key European directives for consumer health, product safety, and environmental protection under EU legislation.
Every batch of stainless steel and food-grade silicone seals is tested to guarantee compliance with US FDA regulations and strict German LFGB food contact standards. Guaranteed 100% lead-free, phthalate-free, and BPA-free.
Our production facilities implement rigorous ISO9001 Quality Management Systems. From incoming raw material spectral analysis to vacuum degradation testing, every step is systematically tracked.
Browse additional custom insulated cup styles available for factory-direct bulk ordering and brand customization.
Get answers to critical technical, commercial, and manufacturing questions regarding metal cup sourcing from China.
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