Explore our premium factory-direct stainless steel tumblers, sports flasks, and custom thermal mugs engineered for superior thermal retention and durability.
Situated in the renowned manufacturing hardware hub of Wuyi County, Zhejiang Province, China, Wuyi Dongyi Dailysupplies Co., Ltd. stands as an industry-leading manufacturer specializing in the advanced research, custom development, and precision production of commercial-grade food stainless steel thermal drinkware.
Our expansive product portfolio encompasses double-walled vacuum insulated tumblers, travel mugs, ergonomic water bottles, insulated wine cups, heavy-duty outdoor jugs, and specialized food containers. Operating under strict international quality control paradigms, we combine high-grade raw metal selection (such as Austenitic 18/8 SUS304 and SUS316 stainless steel) with automated double-wall vacuum extraction technology to guarantee unmatched thermal protection, structural durability, and aesthetic perfection for global brand owners, importers, and retail distributors.
Core Technical Value: We utilize advanced vacuum degasification furnace systems operating at temperatures exceeding 1050°C and vacuum pressure levels down to 10⁻³ Pa, ensuring zero thermal conductivity, non-sweat exteriors, and hot/cold temperature maintenance lasting up to 24 hours.
Rigorous quality metrics driving enterprise success across North America, Europe, South America, the Middle East, and Southeast Asia.
Combining automated metalworking, lead-free vacuum sealing, and high-precision surface coating to build world-class thermal vessels.
We implement eco-friendly lead-free glass bead sealing technology at the base of our thermal vessels. This eliminates traditional lead solder risks, ensuring full compliance with worldwide non-toxic safety protocols while establishing an ultra-durable hermetic vacuum seal.
To prevent radiant thermal transfer, the outer wall of our inner stainless steel liner undergoes a high-purity electroplated copper layer treatment. This copper barrier reflects thermal radiation back inside the vessel, enhancing hot and cold insulation performance by over 25%.
Our automated coating lines handle durable electro-polishing, matte powder coating, UV gradient printing, 3D water transfer printing (hydro-dipping), sublimation, and high-precision laser engraving to fulfill high-end cosmetic specifications.
Understanding raw materials and vacuum technology is critical for enterprise sourcing managers. Below is our engineering benchmark for stainless steel thermal mugs:
| Engineering Attribute | Standard Commercial Grade | Dongyi Factory Benchmark (Premium) | Commercial Advantage |
|---|---|---|---|
| Material Standard | 201 Stainless Steel / Standard 304 | Austenitic Food-Grade 18/8 SUS304 / SUS316 | Superior corrosion resistance & zero metallic taste transfer. |
| Vacuum Tech | Single Evacuation / Lead-solder Seal | High-Temp Vacuum Degasification & Lead-Free Bead Seal | Non-toxic, lifetime vacuum integrity, eco-compliant. |
| Radiant Heat Shield | Uncoated Inner Wall | Electroplated Radiant Copper Layer | Extended thermal hold (Cold 24 hrs, Hot 12 hrs). |
| Interior Finishing | Acid Pickling | Electrolytic Polishing (Mirror Polish) | Ultra-smooth surface; prevents coffee/tea stain buildup and bacteria growth. |
| Surface Coating | Standard Liquid Painting | Eco Powder Coating & UV Digital Printing | Scratch-resistant, dishwasher safe, sweat-proof grip. |
From initial design blueprint to bulk order fulfillment, our streamlined 6-step manufacturing workflow guarantees product accuracy and timely global delivery.
Submit project parameters via email or form. We evaluate custom capacities (e.g., 8oz to 64oz), target market compliance, and preliminary target pricing.
Receive comprehensive cost breakdowns, tooling estimates, packaging solutions, and volume-based discounts tailored to your sourcing budget.
Obtain detailed technical data sheets (TDS), 3D rendered models, and rapid functional prototypes for physical verification before tooling production.
Once sample approval is granted, mass automated pressing, laser welding, vacuuming, and automated coating are executed under strict ISO quality checks.
Products undergo 100% automated thermal sensor tests and drop tests. Freight logistics are managed for prompt global delivery to your designated port.
Access lifetime technical support, replacements for transit damage, and ongoing batch-to-batch consistency guarantees for long-term partnership growth.
Navigating global market regulations requires strict adherence to safety and environmental standards. Wuyi Dongyi Dailysupplies Co., Ltd. ensures that all exported drinkware items fully satisfy the stringent statutory criteria of tier-1 importing markets.
US Food & Drug Administration compliance for direct food contact safety.
European rigorous chemical and sensory testing standards for drinkware.
Ensuring raw materials contain zero heavy metals, lead, or toxic chemicals.
All plastic lids, silicone gaskets, and straws are 100% non-toxic Tritan/PP.
How Wuyi Dongyi is driving next-generation drinkware technology through smart monitoring, ultralight metallurgy, and eco-materials.
Integrating low-power OLED digital lids that display real-time internal liquid temperatures and remind users to stay hydrated throughout the day.
Utilizing advanced thinning metal spin technologies to reduce container wall thickness down to 0.12mm, cutting mug weight by 35% while keeping structural rigidity intact.
Pioneering the shift toward post-consumer recycled (PCR) 304 stainless steel to drastically reduce carbon footprints for eco-conscious global retail brands.
Discover our popular range of custom coffee tumblers, egg-shaped wine mugs, outdoor flasks, and mega hydration bottles.
Expert answers addressing materials, OEM/ODM customizations, quality control protocols, and shipping terms for commercial buyers.
18/8 Stainless Steel contains 18% chromium and 8% nickel. This metallurgical composition provides an inert, non-reactive interior wall that resists oxidation, prevents rust from acidic beverages (coffee, citrus juice), and ensures no metallic leaching or odor retention.
Standard production MOQs start at 1,000 units per style for standard colors. Custom Pantone color matching, special surface coatings (like hydro-dipping), or unique custom mold shapes typically require an MOQ of 2,000 to 3,000 units depending on complexity.
Every vessel passes through a two-stage automated thermal testing line. Mugs are injected with high-temperature hot air/water and checked with infrared temperature sensors. Any unit failing to maintain exact thermal gradients within set tolerances is automatically discarded.
Yes! By applying high-adhesion powder coating finishes paired with high-temperature cured base coats, our drinkware withstands commercial dishwasher heat cycles without peeling, cracking, or losing vacuum insulation strength.
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