Explore our flagship insulated drinkware portfolio engineered for global brands, wholesale distributors, and promotional partners.
A Premier Manufacturing Enterprise Engineering Excellence in Food-Grade Stainless Steel Thermal Hardware
Located in the hardware industrial core of Wuyi County, Zhejiang Province, China, Wuyi Dongyi Dailysupplies Co., Ltd. stands as an industry-leading manufacturer specialized in the comprehensive research, development, structural design, and automated mass manufacturing of high-grade food-safety compliant stainless steel thermal cups, vacuum tumblers, sports bottles, travel mugs, and heavy-duty thermal jugs.
Operating out of state-of-the-art facilities equipped with advanced vacuum evacuation ovens, automatic robotic polishers, precision hydroforming machinery, and automated powder-coating lines, our company enforces rigorous quality control systems certified against global benchmarks. Whether handling high-volume OEM orders for global supermarket chains or developing complex ODM concepts for DTC lifestyle brands, our engineering team ensures uncompromised thermal preservation performance and immaculate aesthetic execution.
Macroeconomic shifts toward sustainability, ergonomic wellness, and hydration lifestyle accessories are reshaping thermal container manufacturing.
The global vacuum insulated vessel market is expanding at a CAGR of 6.8% from 2024 to 2032. Growth is fueled by consumer preference for durable, re-usable hydration products over single-use plastics across North America, Western Europe, and urban APAC hubs.
Thermal cups have evolved beyond utilitarian camping gear into high-margin fashion lifestyle statements. Trends like pastel color palettes, durable textured powder coatings, ergonomic handles, and straw-lid versatility drive rapid product turnarounds.
International markets demand absolute chemical safety. Leading factories must guarantee zero lead content, non-toxic BPA/BPS-free polypropylene lids, and food-contact compliance across FDA, LFGB, REACH, and EU 10/2011 standards.
Understanding the physics and metallurgy of high-performance thermal cup production.
At Wuyi Dongyi Dailysupplies Co., Ltd., we utilize precision deep-drawing and hydroforming processes to construct dual-wall stainless steel vessels. The insulating chamber between the inner lining and outer body is evacuated to a pressure below 10-4 Pa (0.00075 Torr) within continuous high-temperature vacuum braze furnaces operating at temperatures exceeding 1000°C.
| Engineering Feature | 304 Grade (18/8 Stainless) | 316 Grade (18/10 Stainless) | Dongyi Factory Standard |
|---|---|---|---|
| Chemical Composition | 18% Cr / 8% Ni | 18% Cr / 10% Ni / 2% Mo | 100% Food-Grade Certified Material |
| Corrosion Resistance | Excellent for water, coffee, tea | Superior resistance to acidic juices & salt solutions | Passivated inner walls for pure taste retention |
| Thermal Insulation | Up to 12h Hot / 24h Cold | Up to 14h Hot / 30h Cold | Copper-plated thermal barrier layer included |
| Surface Coating Bond | High paint adhesion index | Ultra-smooth microscopic topography | Tactile powder coating & electrostatic paint |
From initial CAD modeling to automated final packaging, we deliver end-to-end industrial customization for global brands.
Submit project requirements via email or form. Our engineering team reviews wall thicknesses, cap seal mechanics, and thermal target profiles.
Receive comprehensive technical data sheets, cost breakdowns, dimensional blueprints, and 3D mockups for client sign-off.
3D printed sample lids and hydroformed metal prototypes undergo thermal leak test evaluation within 7 to 10 working days.
Automated deep-drawing, tube-swaging, vacuum baking, laser cutting, and robotic polishing execute volume production seamlessly.
Laser engraving, silk screen printing, 3D UV printing, water transfer, or textured powder coating applied to exact Pantone standards.
100% thermal vacuum integrity testing, drop test verification, food safety drop checks, and export palletization for global freight shipping.
Browse our expansive lineup of market-proven designs available for custom logos, unique surface finishes, and custom packaging designs.
Delivering tailored drinkware solutions across diverse global consumer environments and industry verticals.
Sleek skinny tumblers and travel mugs engineered with base diameters matching car cup holders, providing 12-hour hot retention for coffee, espresso, and matcha.
Heavy-duty 40oz and 64oz flasks constructed with 18/8 stainless steel and rugged powder coatings designed for mountain trekking, tactical missions, and hydration endurance.
Customized vessels such as our 8oz Yerba Mate Gourds and wine tumblers engineered to fit region-specific beverage cultures across South America, Europe, and the Middle East.
Discover high-demand OEM items ready for global volume distribution and private-label ordering.
Comprehensive answers regarding manufacturing capabilities, MOQ, food safety certifications, and custom branding.
We primarily utilize food-grade 18/8 (SUS304) stainless steel for internal linings and external shells. For specialized anti-corrosion requirements (such as acidic juice vessels), we offer premium SUS316 stainless steel upgrades.
Our standard production MOQ typically starts at 1,000 units per style for stock colors, and 2,000 to 3,000 units for fully customized Pantone color coatings, custom lid molds, or bespoke brand packaging.
Our double-wall vacuum construction combined with internal copper plating ensures hot liquids maintain temperatures above 60°C for up to 12 hours, while iced beverages remain chilled below 8°C for over 24 hours.
Yes, all drinkware components (including silicone sealing rings, straw caps, and Tritan/PP lids) undergo stringent testing to comply with FDA 21 CFR, LFGB, EU 10/2011, and REACH safety guidelines.
We offer high-precision laser engraving, silk screen printing, 3D UV digital printing, heat transfer, water decal transfer, and tactile embossed logos on powder-coated surfaces.
Sample creation takes 7 to 10 days. Mass production lead time is generally 30 to 35 days following sample approval and deposit confirmation, depending on customization complexity.
Dongyi