Explore our high-performance double-wall vacuum insulated coffee flasks, engineered for brand customization and retail excellence.
Analyzing the evolution of high-performance thermal drinkware, materials science breakthroughs, and eco-conscious global supply chains.
By extracting atmospheric gas from the double-walled chamber down to a ultra-low vacuum pressure (< 10⁻⁵ mbar), molecular density within the inter-wall space becomes near-zero. Without gas molecules to collisionally transfer kinetic thermal energy, conductive and convective losses are eliminated.
Infrared thermal radiation accounts for remaining energy loss. Our advanced production lines apply an ultra-thin, high-purity copper plating layer (or radiant aluminum foil lining) onto the exterior side of the inner stainless steel wall. This metallic reflective barrier reflects up to 98% of thermal radiation back into the liquid core.
Utilizing high-temperature glass bead vacuum sintering technology (eliminating lead solder), our vacuum evacuation ports are hermetically sealed at over 1,000°C. This ensures permanent structural stability and prevents slow vacuum degradation over years of heavy operational use.
| Material Grade | Chemical Composition | Corrosion Resistance | Ideal Application Scenario |
|---|---|---|---|
| Austenitic 304 (18/8 SS) | 18% Chromium, 8% Nickel, Fe Balance | Excellent resistance to acidic beverages, coffee, and daily liquid contact. | Standard commercial OEM coffee mugs, daily commute tumblers, outdoor flasks. |
| Medical Grade 316 SS | 16% Chromium, 10% Nickel, 2% Molybdenum | Superior pitting resistance against chlorides, high-acidity cold brews, and sports drinks. | Premium high-end retail lines, infant drinkware, extreme environmental hydration flasks. |
| BPA-Free Food Grade PP | Polypropylene (Lid components) | High thermal deflection temperature, zero toxic leachates, dishwasher safe. | Ergonomic lid systems, sip sliders, straw connectors, dual-seal stoppers. |
Precision laser cutting of stainless steel coils followed by water-pressure hydro-expansion to shape inner/outer walls.
Automated neck shrinking, bottom cup positioning, and micro-plasma argon rim welding to create seamless joinery.
High-vacuum baking chambers extract air at 1050°C. Electrolytic copper plating is applied to the exterior of inner shell.
Acid-free inner electrochemical polishing prevents odor buildup; exterior powder coating or spray painting applied.
100% automated thermal sensor testing (hot & cold retention checks) followed by cleanroom packaging.
Transforming standard hardware into branded retail products through bespoke surface aesthetics, logo integration, and lid ergonomics.
Powder Coating: Ultra-durable, scratch-resistant textured finish with non-slip grip.
Gradient Spraying: Multi-tone color blending with high-gloss or matte UV topcoat.
Electrolyte & Water Transfer Printing: Full-body 360° pattern wrapping including marble, woodgrain, and geometric art.
Laser Engraving: Exposes the underlying stainless steel with high precision.
3D Silk Screening & UV Printing: Raised tactile textures with vivid CMYK Pantone color matching.
Debossed / Embossed Metal Logos: Structural tooling modifications for premium tactile branding.
Multi-Drink 3-in-1 Lids: Allows direct sipping, straw insertion, and leak-proof sealing.
Magnetic Slider Lids: Easy dismantling for thorough cleaning and zero residue accumulation.
One-Touch Flip Lids: Ergonomic spring-loaded latch mechanisms for sports and driving safety.
Ensuring seamless international market entry through certified food safety compliance, regional adaptation, and resilient logistics systems.
All product contact components satisfy US FDA 21 CFR 175.300 standards and California Proposition 65 requirements for heavy metals, ensuring complete lead-free, cadmium-free, and BPA-free safety.
Engineered to meet German LFGB (EC No 1935/2004) chemical testing, SVHC REACH compliance, and French DGCCRF requirements for neutral taste and odor migration safety.
Complete support for Amazon FBA Prep, customized retail packaging (color boxes, display PDQs), drop-testing compliance (ISTA 3A), and DDP/FOB/CIF global freight logistics.
From initial CAD rendering and rapid 3D sample prototyping within 48 hours to final mass production, thermal retention testing, and container loading—Wuyi Dongyi delivers zero-defect manufacturing consistency backed by full factory warranty support.
Deploying tailored drinkware lines customized for distinct commercial eco-systems, consumer demographics, and retail environments.
Designed to fit standard automotive cup holders. Dual-wall insulation prevents exterior condensation ("sweating"), keeping office desks, papers, and tech hardware dry while keeping espresso hot for up to 8 hours.
Heavy-duty powder coating withstands rough outdoor conditions. High-capacity 32oz, 40oz, and 64oz flasks equipped with rugged handles and wide mouths allow easy ice insertion and hydration on long trail hikes.
Private label coffee mugs tailored for specialty roasters, coffee shops, and hotel groups looking to reduce single-use paper cups while offering premium branded merchandise to loyal customers.
Driving the future of sustainable thermal engineering, circular materials, and intelligent hydration monitoring.
Transitioning toward 90%+ Post-Consumer Recycled (PCR) 304 stainless steel, drastically lowering carbon footprints per unit without sacrificing tensile strength or corrosion resistance.
Integrating ultra-low power LED touch displays into lid modules for real-time temperature sensing and hydration reminder alarms via Bluetooth app connectivity.
Developing ultra-thin spray ceramic internal coatings that fuse with stainless steel, offering an inert glass-like surface ideal for delicate single-origin coffees and acidic fruit infusions.
Clear engineering, ordering, and production answers for corporate buyers, brand owners, and wholesale distributors.
Our standard MOQ for custom color coating and logo application begins at 1,000 units per model/color. For fully custom tooling, new structural lid molds, or unique volume dimensions, MOQ usually ranges from 3,000 to 5,000 units depending on technical complexity.
Under standardized laboratory testing conditions (ambient temp 20°C), hot liquids (95°C start) remain above 60°C for 6 to 12 hours. Cold liquids (4°C ice water start) remain below 10°C for 12 to 24 hours, depending on bottle volume and lid style.
Yes. We strictly utilize premium food-grade 304 or 316 stainless steel for metal bodies, BPA-free PP for lids, and medical-grade silicone for seals. We employ advanced lead-free glass bead vacuum sealing technology, ensuring 100% compliance with FDA, LFGB, and REACH standards.
Absolutely. You can provide any standard Pantone (PMS) color code. Our color technicians perform automated spectrophotometer matching to achieve precise surface coating alignment. We also offer pre-production physical samples and 3D digital renderings for approval.
Customized pre-production samples take 7 to 12 days. Once samples are approved and deposit confirmed, mass production lead time is typically 30 to 35 days, depending on batch quantity and coating finishing specifications.
Yes. We offer complete OEM packaging solutions including individualized gift boxes, craft mailer boxes, barcoding, FBA carton labeling, inner protective bubble sleeves, and retail display master cartons.
Explore our complete product lineup including Quencher tumblers, sports bottles, skinny tumblers, egg cups, and insulated ice buckets.
Dongyi
