High-Quality Travel Flask Manufacturer & Supplier

Precision Engineering, Vacuum Thermal Technology & Sustainable OEM/ODM Manufacturing Solutions for Global Brands

Featured Enterprise Product Catalog

Explore our flagship double-wall vacuum insulated flasks, tumblers, and sports bottles engineered for thermal performance and global compliance.

304 SS Cone-shape Cola Bottle
CE Certification Double Wall Insulated 304 SS Cone-shape Cola Bottle
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18/8 SS Insulated Tumbler
CE Certified 18/8 Stainless Steel 20oz Insulated Tumbler Mug
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30oz Vacuum Insulation Tumbler
High-Quality 30oz Vacuum Insulation Tumbler for Hot & Cold Drinks
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20oz Skinny Tumbler
Best Vogue 20oz Skinny Tumbler 304 Stainless Steel Insulation Cup
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Yerba Mate Gourd Cup
Wholesale Yerba Mate Gourd 8oz Mini Insulated Stainless Steel Cup
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20oz Insulated Mug Lid Options
CE Certification Premium 18/8 20oz Tumbler with Custom Lid Options
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20oz Coffee Tumbler
CE Certification Premium 20oz Vacuum Insulated Coffee Tumbler
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64oz Outdoor Vacuum Flask
CE Certification 64oz Outdoor Insulated Vacuum Flask for Sports
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Global Travel Flask Market Landscape & B2B Industry Macro Shift

An authoritative analysis of hydration economics, material advancements, and international supply chain evolution.

Market Growth Dynamics

The global insulated travel flask and drinkware market is experiencing unprecedented expansion, projected to surpass USD 11.8 billion by 2030 with a steady CAGR of 6.4%. Growth is primarily accelerated by rising environmental awareness against single-use plastics, expanding outdoor lifestyle sectors, and demand for ergonomic corporate hydration solutions.

Material Science Transition

Modern commercial procurement has shifted decisively from lower-grade 201 stainless steel to premium food-grade Austenitic 304 (18/8) and medical-grade 316 stainless steel. Advanced copper-plated vacuum insulation layers now set the standard for maximum temperature preservation without metal leaching or flavor transfer.

Rigorous International Standards

Global distributors require absolute compliance with international food contact safety directives. Leading manufacturers must align with EN 12546-1 thermal performance guidelines, US FDA 21 CFR standards, EU 10/2011 regulations, and LFGB testing to ensure seamless cross-border market entry.

Manufacturing Precision in Numbers

Operational excellence backing high-volume global distribution and private label manufacturing.

100%
Food-Grade 304/316 SS
24 Hrs
Cold Temperature Retention
12 Hrs
Hot Thermal Insulation
10^-3
Pa Vacuum Precision

Why Choose Wuyi Manufacturing: The Silicon Valley of Stainless Steel Drinkware

How localized industrial clusters in Zhejiang, China drive unmatched cost efficiency, rapid scaling, and technological innovation.

Complete Supply Chain Integration

Located in Wuyi County, Zhejiang Province, our production ecosystem gains immediate access to raw material refining, automated tube drawing, precision deep-drawing hydroforming, and tooling design within a 15-kilometer radius. This geographic concentration reduces logistical friction and shortens component sourcing cycles by up to 60%.

Automated Robotics & Vacuum Furnaces

Chinese manufacturing leadership relies heavily on automation. Utilizing continuous high-vacuum brazing furnaces and robotic laser welding lines ensures consistent vacuum integrity ($10^{-3}$ Pa vacuum seal). Automation eliminates human error in outer-to-inner vessel joining, providing superior batch-to-batch structural integrity.

Advanced Surface Treatment Capabilities

From electrostatic powder coating, eco-friendly water transfer printing, to PVD physical vapor deposition and 3D UV digital printing, Chinese facilities provide limitless customization options. Production lines maintain strict adherence to non-toxic, lead-free, and BPA-free external coating specifications.

Engineering Specifications & Technical Matrix

Comprehensive standard technical parameters for enterprise OEM/ODM orders.

Parameter / Feature Standard Specification Premium / OEM Option Testing & Compliance Method
Inner Liner Material Food-Grade SUS 304 Stainless Steel Medical-Grade SUS 316 Stainless Steel Spectrometric Chemical Analysis
Outer Shell Material SUS 304 / 201 Stainless Steel SUS 304 Stainless Steel Salt Spray Corrosion Resistance Test (48h)
Vacuum Insulation Layer Double-Wall Vacuum Insulation Double-Wall + Internal Copper Plating Thermal Imaging & Temperature Loss Test
Thermal Retention (Hot) > 68°C after 6 hours (from 99°C) > 74°C after 6 hours (from 99°C) EN 12546-1 Standard Testing protocol
Thermal Retention (Cold) < 9°C after 12 hours (from 0°C) < 5°C after 24 hours (from 0°C) Ice Retention Chamber Testing
Lid & Closure Systems BPA-Free PP Plastic + Silicone Ring Tritan™ / Slide Lid / Straw Lid System Leak-proof Hydrostatic Pressure Test
Surface Coating Standard Matte Spray Paint Duracoat Powder Coating / 3D Printing Cross-Hatch Adhesion Tape Test (ASTM D3359)

Target Application Scenarios & Global Use Cases

Engineered for versatility—adapting to diverse lifestyle, commercial, and outdoor demands.

Urban Commute & Daily Desk Use

Compact 20oz skinny tumblers and egg-shaped mugs designed to fit seamlessly into standard vehicle cup holders. Ideal for specialty coffee, matcha, and cold brews, keeping office professionals hydrated throughout the workday without condensation sweat rings.

High-Capacity All-Day Hydration

Massive 30oz and 40oz insulated handles tumblers with straw lids cater to outdoor enthusiasts, fitness practitioners, and long-distance drivers. Designed for maximum volume with minimum refill frequency while maintaining sub-zero drink temperatures for 24 hours.

Rugged Outdoor Expeditions

Heavy-duty 64oz growlers and wide-mouth sports flasks built with reinforced impact-resistant bases. Built for camping, hiking, and extreme environments, protecting liquids against freezing ambient conditions or intense desert heat.

Specialty Regional Markets

Custom designs targeting unique cultural beverage preferences, such as double-wall stainless steel Yerba Mate Gourds equipped with bombilla straws for South American markets, or leak-proof tea-infuser flasks for Asian regions.

About Wuyi Dongyi Dailysupplies Co., Ltd.

Your Trusted Global Manufacturing Partner for Superior Vacuum Insulation Solutions

Wuyi Dongyi Dailysupplies Co., Ltd is located in the beautiful Wuyi county, Zhejiang Province, China. It is specialized in production, research and development of kinds of food grade stainless steel tumblers, mugs, bottles, cups, jugs and containers, etc. Both double-walled vacuum insulation construction and single wall construction are included. We have advanced production machines and testing equipments, strict quality controlling system, and professional team of research & development with much experience in this field.


From our establishment, our company obeys the core principles all the time: Quality First, Service First. We have established long-term cooperation with many customers from USA, Europe, South America, Middle East, Southeast Asia, etc. Our professional team aims at providing vogue and versatile products, high quality, and complete service, which has earned us a solid reputation from global clients and enabled fast growth. OEM and ODM cooperation are warmly welcomed. With customized surface coating colors, creative patterns & logos, and new model functional lids, our goods remain highly competitive and popular worldwide.

Comprehensive B2B Total Solution Matrix

Customized Product Solutions

We provide full OEM and ODM services to meet personalized client needs. Whether it is surface coating color, creative pattern, or customized laser/screen logo, we create unique offerings to help your brand stand out in competitive markets.

High Quality Material Guarantee

Our products are strictly manufactured using food-grade 304/316 stainless steel to ensure safety, non-toxicity, and long-term durability. Quality control inspectors oversee every stage from raw coil inspection to final packaging.

Full Range Service Support

Our professional export team provides end-to-end service from technical consultation and 3D modeling to freight forwarding and after-sales support, ensuring your procurement schedule is met flawlessly.

Stylish & Functional Design

We continuously innovate lid engineering—introducing leak-proof flip lids, magnetic closures, and ergonomic handles that improve everyday practical functionality and attract high-end consumers.

Global Partner Network

With established supply lines across North America, Europe, South America, the Middle East, and Southeast Asia, we understand regional regulatory demands and customs procedures for hassle-free importing.

Environmental Commitment

By producing reusable, zero-toxin stainless steel drinkware, we actively empower global consumers to reduce single-use plastic waste while using energy-efficient vacuum brazing techniques.

Streamlined 6-Step OEM/ODM Manufacturing Process

From initial inquiry to final global delivery—how we turn your product vision into market reality.

STEP 01

Inquiry & Brief

Send us your product inquiry, target specs, or reference samples via email or online contact form.

STEP 02

Quotation

Receive a comprehensive cost estimation, target Lead Time, and initial design evaluation from our team.

STEP 03

Technical Spec

Obtain detailed CAD drawings, 3D renderings, and precise material data sheets with customized solutions.

STEP 04

Order & Sample

Approve pre-production physical samples, finalize packaging artwork, and officially place your production order.

STEP 05

Quality Control

Mass production executes under strict inline QA oversight with technical testing and thermal checks.

STEP 06

Delivery & Support

Prompt international shipment execution backed by comprehensive ongoing technical and after-sales service.

Additional Hot-Selling Travel Flask Collection

Browse more of our trending insulated drinkware options for high-volume wholesale and custom manufacturing.

40oz Insulated Hydration Bottle
CE Certified Vogue 40oz Insulated Portable Hydration Bottle
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Wholesale 30oz Hydra Quencher Tumbler
Wholesale Stanley 30oz Hydra Quencher H2.0 Vacuum Insulated Mug
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OEM 18/8 SS Cola Bottle
OEM Vacuum Insulation Double Walled 18/8 SS Cola Bottle
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40oz Sports Hydration Bottle
China Vogue 40oz Insulated Hydration Bottle for Outdoor Sports
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Swig Egg Shape Cup
CE Certification Swig Egg Shape Cup Insulated Tumbler 8/12/16oz
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OEM Egg Shape Tumbler
OEM Insulated Swig Egg Shape Vogue Cup 12oz 16oz 8oz Tumbler
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Ice Straw Tumblers
OEM 40oz/35oz Insulated Ice Straw Tumblers in Trendy Colors
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Premium 20oz Coffee Cup
Wholesale Premium 20oz Insulated Tumbler Vacuum Coffee Cup
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Technical & Procurement FAQ (Frequently Asked Questions)

Clear, transparent technical insights addressing commercial buyers' critical questions.

What is the key difference between 18/8 (304) and 201 stainless steel in travel flasks?
18/8 Stainless Steel (Grade 304) contains 18% chromium and 8% nickel, rendering it highly resistant to oxidation, acidic beverage corrosion (such as coffee or citrus juices), and rust. In contrast, 201 stainless steel contains lower nickel content and higher manganese, making it susceptible to pitting corrosion over time. Wuyi Dongyi Dailysupplies Co., Ltd strictly utilizes food-grade SUS 304/316 for all inner vessel construction to guarantee safety and compliance with FDA and LFGB standard requirements.
How does double-wall vacuum insulation achieve 24-hour temperature control?
Double-wall vacuum insulation works by creating an airtight vacuum gap ($10^{-3}$ Pa) between the inner and outer stainless steel walls. Because air molecules are extracted during high-temperature brazing, thermal conduction and convection are virtually eliminated. Additionally, an internal electro-polished copper coating on the outer surface of the inner wall reflects infrared thermal radiation back into the vessel, keeping hot beverages hot for over 12 hours and ice liquids cold for up to 24 hours.
What minimum order quantities (MOQ) and customization lead times do you offer?
Our standard Minimum Order Quantity (MOQ) for custom painted or silk-screened logos starts at 1,000 pieces per color/design. For fully customized tooling or complex 3D surface coatings, sample creation takes approximately 7 to 10 working days. Full mass production lead time typically ranges between 25 and 35 days post-sample approval, supported by our scalable automated production lines in Wuyi.
Are your plastic lids and silicone sealing components certified BPA-Free and safe?
Yes, all non-metal components—including polypropylene (PP) plastic caps, Tritan™ straw structures, and food-grade silicone sealing gaskets—are 100% BPA-free, phthalate-free, and non-toxic. Every lot undergoes rigorous testing to ensure zero toxic chemical migration under high-temperature conditions up to 120°C.
What testing procedures are performed during quality assurance (QA)?
Each batch undergoes a multi-stage Quality Assurance protocol: 100% vacuum insulation performance test in temperature-controlled sensors, 48-hour salt spray corrosion test for coatings, cross-hatch paint adhesion testing, seal integrity hydrostatic testing, and physical drop tests to ensure extreme durability during transit and everyday consumer use.