Explore our high-performance thermal drinkware series built for global brands, wholesale distributors, and retail chains.
Wuyi Dongyi Dailysupplies Co., Ltd. setting industry benchmarks in vacuum insulation thermodynamics and high-grade stainless steel hardware manufacturing.
Located in the heart of Zhejiang Province’s hardware manufacturing cluster in Wuyi County, China, Wuyi Dongyi Dailysupplies Co., Ltd. operates as a premier OEM/ODM manufacturer specializing in food-grade stainless steel hydrations systems. Our comprehensive enterprise facility integrates end-to-end industrial production, material science research, thermal performance testing, and multi-axis automated tooling.
Our expansive product portfolio spans double-walled vacuum insulated tumblers, outdoor travel flasks, heavy-duty hydration jugs, ultra-lightweight sports bottles, and specialized vessels such as Yerba Mate gourds and wide-mouth quenchers. Operating under rigorous ISO 9001:2015 Quality Management Systems and certified for global food contact regulations (FDA 21 CFR, LFGB, DGCCRF, REACH), we deliver engineered reliability to premier global brand owners, importers, retail conglomerates, and commercial distributors.
Leveraging automated robotic lines, advanced vacuum evacuation chambers, and digitalized quality monitoring to guarantee precision at scale.
Utilizing high-precision multi-stage hydraulic expanding and CNC spin-forming equipment. Achieves uniform wall thickness down to 0.4mm, optimizing bottle strength while significantly reducing total physical tare weight.
Our continuous high-temperature vacuum bake-out furnaces operate at sub-micron pressure levels ($10^{-4}$ Pa). Enhanced with inner copper plating and getter alloy activation, guaranteeing 24+ hour temperature retention.
Fully automated electro-static powder coating lines guarantee 360-degree adhesion, zero color variation, superior scratch resistance, and eco-friendly zero-VOC emissions suitable for heavy dishwasher cycles.
A comprehensive analysis of metallurgy, insulation science, and surface engineering utilized in OEM drinking flask production.
| Engineering Parameter | Standard Commercial Grade | Wuyi Dongyi OEM Enterprise Grade | Performance & Value Gain |
|---|---|---|---|
| Raw Material (Inner Shell) | Commercial 201 Stainless Steel | Austenitic SUS304 (18/8) or SUS316L | Zero metallic taste, superior corrosion resistance against acidic beverages (coffee, juice, tea). |
| Insulation Insulation Tech | Standard Air Vacuum | Deep Vacuum + Wall Copper Plating + Getter | Extends hot retention (24h > 65°C) and cold retention (36h < 8°C); minimizes thermal radiation loss. |
| Internal Surface Treatment | Basic Pickling Finish | Precision Electropolishing / Ceramic Coating | Ultra-smooth internal wall, prevents biofilm accumulation, easy cleanability, stain resistance. |
| Exterior Coating & Decor | Liquid Spray Paint | Thermoset Powder Coating / Laser Engraving | Chip-resistant, sweat-proof exterior grip, 100+ commercial dishwasher cycle durability. |
| Lid Mechanics & Sealing | Standard PVC / Recycled Plastic | 100% Virgin BPA-Free Tritan™ + Food-Grade Silicone | Zero toxic leaching, temperature resistance (-40°C to 120°C), dual-stage leak-proof engineering. |
Tailored OEM and ODM integration modules designed to support diverse market segments and global distribution networks.
Engineered for rugged environments. Double-wall insulated sport flasks ranging from 32oz to 64oz featuring impact-resistant rubber boots, heavy-duty paracord handles, and high-flow spout lids for extreme adventure usage.
Fashion-forward quencher tumblers (30oz & 40oz) with ergonomic handles, narrow bases designed to fit standard vehicle cup holders, sleek pastel color palettes, and leak-resistant straw lid mechanisms.
Turnkey custom branding capabilities including precision laser engraving, 3D UV digital printing, silk-screen pantone matching, and customized retail color gift packaging tailored for promotional campaigns.
Ensuring complete peace of mind through international quality certifications, ethical labor audits, and robust legal documentation.
Every raw material batch undergoes strict laboratory verification to ensure 100% compliance with international food safety frameworks:
We strictly adhere to global ESG (Environmental, Social, and Governance) standards to safeguard our partners' corporate integrity:
From initial concept rendering to mass production delivery, our streamlined 6-stage engineering process guarantees zero operational friction.
Submit detailed product specifications, target volume, material specifications, and design files (CAD/STEP/IGES) via email or online submission.
Receive comprehensive quotation, unit costs, tooling requirements, material recommendations, and DFM (Design for Manufacturability) analysis.
Evaluation of physical 3D-printed or stainless steel pre-production samples, color pantone confirmation, and functional leak testing.
Initiation of automated tube cutting, hydro-forming, vacuum baking, surface coating, and automated assembly under ISO 9001 supervision.
100% thermal insulation testing, coating cross-hatch adhesion test, drop testing, and leak-proof pressure verification before packaging.
Secure export pallethization, international shipping execution, custom clearance documents delivery, and guaranteed post-sales tech warranty.
Expert answers addressing standard procurement inquiries, material selection, custom tooling, and order logistics.
Our standard production MOQ for custom color coating and logo application is 1,000 units per style/color. For completely custom flask body shapes requiring dedicated hydro-forming mold development, the typical baseline MOQ is 3,000 units. Trial production runs can be evaluated on a project basis.
We implement a 100% two-stage thermal vacuum quality check. Bottles undergo a 24-hour temperature retention test immediately after vacuum sealing and a second thermal camera inspection prior to final packaging. Our defect rate (PPM) remains strictly below 0.15%.
We primarily utilize food-grade SUS304 (18/8 Stainless Steel) for all inner liners and outer shells. For specialized marine or highly acidic beverage applications, we offer upgraded medical-grade SUS316L stainless steel for the inner core to maximize pitting corrosion resistance.
Yes. We offer electrostatic powder coating, rubberized soft-touch matte finishes, metallic gradient electroplating, sublimation water-transfer patterns, and durable 3D UV textured printing. All coatings are non-toxic, lead-free, and tested for heavy dishwasher durability.
Our factory provides full certification packages including FDA 21 CFR compliance, LFGB German food safety standard reports, CE compliance certificates, BPA-free chemical test reports, and ISO 9001/14001 enterprise audit documentation.
Custom surface color and logo samples are delivered within 7 to 10 working days. Full custom mold development takes 25 to 30 days. Once pre-production samples are approved, mass production orders are typically completed and ready for shipment within 30 to 35 days.
Serving world-class brands, importers, and retail market leaders across North America, Europe, South America, the Middle East, and Southeast Asia.
Select from our high-volume production models available for immediate OEM customization and private labeling.
Dongyi