Name: China Customized Stainless Steel Double Wall Vacuum Flask Suppliers - Wholesale Service - Kairun
Brand: JIAKAI
SKU: 309797436

The Stainless Steel Double Wall Vacuum Flask is designed for coffee brands, promotional gift suppliers, retail distributors, and outdoor drinkware wholesalers, providing reliable temperature retention, food-grade safety, and flexible OEM/ODM customization for global markets.

Product Features

Double-Wall Vacuum Insulation: Minimizes heat transfer to preserve beverage temperatures (hot/cold) while eliminating exterior condensation.

Food-Grade Stainless Steel: Built with SUS304/SUS316 interior for rust resistance, zero odor transfer, and daily food-contact safety.

Leak-Resistant Lid: Threaded precision seal prevents leakage during transport and handling.

Key Attributes

Feature	Eco-Friendly, Various Capacity,Portable
Applicable people	All	Bottle Type	Tumbler
Drinkware type	Vacuum Flasks & Thermoses	Shape	Round
Thermal insulation performance	6-12 hours	Style	Classic
Place of origin	China	Production	Stainless Steel Double Wall Vacuum Flask
Brand name	JIAKAI or Customized	Colour	Various
Materials	Stainless steel	Capacity	Various
Thermal insulation performance	Thermal Insulation	Water Flowing Method	Direct Drinking
Usage	Drink Coffee Water Tea	Function	Keep Drink Hot Cold
Payment terms	30% prepayment, 70% against BL copy	Delivery	20-35 days after deposit
Place of Dispatch	Ningbo	MOQ	500PCS

Applications

Retail & E-commerce: Supermarket chains, retail brands, and online private-label stores.

Corporate & Promotional: Corporate gifts, branded giveaways, and promotional suppliers.

Food Service & Hospitality: Coffee shops, hotels, catering, and beverage stations.

Wholesale & Distribution: Import wholesalers, distributors, and outdoor gear suppliers.

Customization Options

We provide flexible OEM & ODM manufacturing services.

Item	Custom Options
Logo	Laser Engraving, Silk Printing, UV Printing
Capacity	Various Sizes
Surface Finish	Powder Coating, Spray Painting, Matte, Glossy
Color	Pantone Custom Colors
Lid Design	Flip Lid, Screw Lid, Drinking Lid
Packaging	Color Box, Gift Box, Mail Box, PDQ Display
Barcode & Labels	Available
OEM Brand	Supported
ODM Development	Supported

Quality Control Process

01/

Raw Material Inspection (IQC)
• Material Analysis: Spectrometric verification of SUS304/SUS316 food-grade stainless steel.
• Component Audit: Tolerance checks on silicone seals, plastic lids, and handles.

02/

In-Process Quality Control (IPQC)
• Welding Integrity: Structural checks on body forming and automated welds.
• Vacuum Monitoring: In-line thermal pressure checks during vacuum extraction.
• Surface Check: Coating adhesion and defect inspection post-finishing.

03/

Finished Product Testing (FQC)
• Thermal Performance: Batch testing for 24–36 hour vacuum retention.
• Leak Testing: 100% inverted static pressure checks on assembled carafes.
• Mechanical Fatigue: Lid thread cycle and drop tests on random samples.

04/

Pre-Shipment Audit (OQC)
• Visual Audit: Final check for coating defects or scratches.
• Packaging Inspection: Master carton strength, barcode readability, and protective packaging audits.

Why Choose Us

Intelligent Manufacturing Scale: Over 500,000 m² modern manufacturing space ensuring efficient fulfillment of major international orders.

Recognized R&D Excellence: Winner of 100+ top international design awards (Red Dot/iF) and holder of 200+ innovation patents.

Extensive Export Footprint: Trusted across South America, Southeast Asia, Arabia, and Africa, backed by our recognized brand "JIAKAI".

Comprehensive Service Support: Serving 700+ worldwide partners with reliable spare parts replacement and technical care.

Ordering Process

Inquiry & Specification Alignment: Submit custom requirements (logo, finish, capacity, packaging).

Quoting & Pre-Production Sampling: Receive formal quote and approve physical/digital pre-production samples.

Order Confirmation & Production: Finalize commercial terms and deposit to begin mass manufacturing.

Quality Audit & Pre-Shipment Check: Batch inspection during and post-production as per specified QC criteria.

Customs Clearance & Delivery: Dispatch with complete export shipping documentation.

FAQ

Q: What is your standard MOQ?

A: Standard MOQ starts at 500 units, depending on specific customization requirements.

Q: Can I order samples before mass production?

A: Yes. Custom or standard samples are available for quality evaluation and structural approval.

Q: Which international markets do you supply?

A: We support global distribution and comply with standard export clearance protocols worldwide.

Q: What beverages are suitable for this flask?

A: It is suitable for water, coffee, tea, juices, and temperature-sensitive liquids.

Q: Can you produce different capacities?

A: Yes. Multiple standard volume sizes and customized dimensions are available.

Q: Do you provide custom packaging?

A: Yes. We provide color boxes, gift boxes, display packaging, and protective shipping cartons.

Q: How long is the production lead time?

A: Mass production typically takes 20–35 days after sample confirmation and deposit receipt.

Q: Can you provide export documents?

A: Yes. We issue Commercial Invoices, Packing Lists, Certificates of Origin, and customs documents.

Q: Do you provide pre-shipment inspection reports?

A: Yes. Internal QC inspection reports and thermal performance test logs are provided before dispatch.

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Stainless Steel Double Wall Vacuum Flask