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vacuum flask Manufacturers

I have found results from900+products and200+suppliers aboutvacuum flask

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Wholesale Custom Logo Leakproof Bamboo Stainless Steel Thermos Water Bottle Vacuum Flask

Wholesale Custom Logo Leakproof Bamboo Stainless Steel Thermos Water Bottle Vacuum Flask

US$1.98-3.98
100 Pieces(MOQ)
Sample Available
600ml Double Wall Vacuum Insulated Food Grade Stainless Steel Vacuum Flask

600ml Double Wall Vacuum Insulated Food Grade Stainless Steel Vacuum Flask

US$1.98-4.28
100 Pieces(MOQ)
Sample Available
Double Layer 18/8 304 Stainless Steel Eco-Friendly Thermos Vacuum Flask

Double Layer 18/8 304 Stainless Steel Eco-Friendly Thermos Vacuum Flask

US$1.55-2.88
100 Pieces(MOQ)
Bamboo Shell Double Wall Stainless Steel Insulation Thermos Cup Vacuum Flask

Bamboo Shell Double Wall Stainless Steel Insulation Thermos Cup Vacuum Flask

US$1.98-3.98
100 Pieces(MOQ)
Sample Available
18/8 Stainless Steel Termos Double Layer Food Grade Leak Proof Vacuum Flask

18/8 Stainless Steel Termos Double Layer Food Grade Leak Proof Vacuum Flask

US$1.98-2.88
100 Pieces(MOQ)
Sample Available
350/450/500ml Double Stainless Steel Plastic Bottom Natural Bamboo Thermos Insulation Cup Vacuum Flask

350/450/500ml Double Stainless Steel Plastic Bottom Natural Bamboo Thermos Insulation Cup Vacuum Flask

US$1.98-3.98
100 Pieces(MOQ)
Sample Available
18oz 21oz, 24oz 32oz 40oz 64oz Vacuum Flask Sports Water Bottle Souvenir Holiday Gift 18/8 BPA Free Vacuum Flask

18oz 21oz, 24oz 32oz 40oz 64oz Vacuum Flask Sports Water Bottle Souvenir Holiday Gift 18/8 BPA Free Vacuum Flask

US$1.98-4.28
100 Pieces(MOQ)
Sample Available
Doule Wall Temperature Display LED Smart Thermos Keep Warm Cold Heat Insulated Vacuum Flask OEM Custom Logo 500ml

Doule Wall Temperature Display LED Smart Thermos Keep Warm Cold Heat Insulated Vacuum Flask OEM Custom Logo 500ml

US$1.39-1.99
100 Pieces(MOQ)
Sample Available
Hot Sale New 538ml 648ml Thermos Vacuum Flask Set with Gift Box Stainless Steel Water Bottle with 3 Lids

Hot Sale New 538ml 648ml Thermos Vacuum Flask Set with Gift Box Stainless Steel Water Bottle with 3 Lids

US$1.78-2.88
100 Pieces(MOQ)
Sample Available
Intelligent Digital Temperature Display Children Kids Adult Cartoon Thermos Student Strap 304 Stainless Steel Straw Water Vacuum Flask

Intelligent Digital Temperature Display Children Kids Adult Cartoon Thermos Student Strap 304 Stainless Steel Straw Water Vacuum Flask

US$1.98-2.98
100 Pieces(MOQ)
Sample Available
350ml 500ml 750ml Stainless Steel Frosted 18/8 Double Wall Thermos Fashion Portable Office Car Insulated Vacuum Flask

350ml 500ml 750ml Stainless Steel Frosted 18/8 Double Wall Thermos Fashion Portable Office Car Insulated Vacuum Flask

US$1.98-3.38
100 Pieces(MOQ)
Sample Available
Leak Proof BPA Free Insulated Tumbler Stainless Steel Coffee Beer Mug Vacuum Flask with Bouncing Lid

Leak Proof BPA Free Insulated Tumbler Stainless Steel Coffee Beer Mug Vacuum Flask with Bouncing Lid

US$1.28-2.48
100 Pieces(MOQ)
Sample Available
Rubber Paint Thermos LED Temperature Display Business Gift BPA Free 18/8 Stainless Steel Vacuum Flask for Your Customers

Rubber Paint Thermos LED Temperature Display Business Gift BPA Free 18/8 Stainless Steel Vacuum Flask for Your Customers

US$1.39-1.99
100 Pieces(MOQ)
Sample Available
LED Smart Temperature 500ml Double Wall Insulated Stainless Steel Thermos Water Bottles Vacuum Flask for Coffee Tea

LED Smart Temperature 500ml Double Wall Insulated Stainless Steel Thermos Water Bottles Vacuum Flask for Coffee Tea

US$1.39-1.99
100 Pieces(MOQ)
Sample Available
Heat Insulated Thermos 18/8 Double Wall Stainless Steel Portable Camping Coffee Office Vacuum Flask Custom

Heat Insulated Thermos 18/8 Double Wall Stainless Steel Portable Camping Coffee Office Vacuum Flask Custom

US$1.57-2.58
100 Pieces(MOQ)
Sample Available
Leak Proof 350/500/750ml Stainless Steel Cola Shape Vacuum Flask Reusable

Leak Proof 350/500/750ml Stainless Steel Cola Shape Vacuum Flask Reusable

US$1.57-3.38
100 Pieces(MOQ)
Sample Available
Factory Direct Sale 18oz Eco-Friendly Stainless Steel Liner Coffee Mug Vacuum Flask 380 510 Ml

Factory Direct Sale 18oz Eco-Friendly Stainless Steel Liner Coffee Mug Vacuum Flask 380 510 Ml

US$1.28-2.48
100 Pieces(MOQ)
Sample Available
Manufacturer The New Sling Insulation Cup Household Portable Vehicle Insulated Pot Outdoor Stainless Steel Sports Kettle Vacuum Flask with Lift Rope

Manufacturer The New Sling Insulation Cup Household Portable Vehicle Insulated Pot Outdoor Stainless Steel Sports Kettle Vacuum Flask with Lift Rope

US$1.52-2.57
100 Pieces(MOQ)
Sample Available
Freesip Insulated BPA-Free Tumbler Stainless Steel Water Bottle Vacuum Flask with Straw for Sports Travel with Silicone Anti-Slip Protective Sleeve Bottom

Freesip Insulated BPA-Free Tumbler Stainless Steel Water Bottle Vacuum Flask with Straw for Sports Travel with Silicone Anti-Slip Protective Sleeve Bottom

US$2.79-4.99
100 Pieces(MOQ)
Sample Available
Big Capacity Outdoor Sports Travel Mug Kitchenware Drinkingware Thermos Cup Thermos Vacuum Flask with Bamboo Lid

Big Capacity Outdoor Sports Travel Mug Kitchenware Drinkingware Thermos Cup Thermos Vacuum Flask with Bamboo Lid

US$1.98-2.48
100 Pieces(MOQ)
Sample Available

Sourcing guidance for Vacuum Flask

What are the key technical specifications to consider when selecting a high-quality vacuum flask?

The most critical factor is the material grade; ensure the inner liner is made of Food-Grade 304 (18/8) or 316 Stainless Steel for corrosion resistance. For insulation performance, look for double-wall vacuum insulation technology with a copper-plated interior layer to enhance thermal retention. Additionally, verify the BPA-free status of all plastic components and the use of food-grade silicone for leak-proof seals.

How can I verify the thermal performance and durability of the flasks before bulk purchasing?

Request a thermal retention test report showing that the flask can maintain temperatures (e.g., keeping liquids hot for 12 hours or cold for 24 hours). For durability, inquire about the powder coating quality, which should pass a cross-cut adhesion test to ensure the paint does not peel easily under heavy use. It is highly recommended to source from suppliers on Made-in-China.com who provide third-party inspection services.

What international compliance standards must vacuum flasks meet for global markets?

For the US market, products must comply with FDA (Food and Drug Administration) regulations and California Proposition 65. For the EU, they must meet LFGB (Lebensmittel- und Futtermittelgesetzbuch) standards and REACH requirements. Ensure the supplier can provide valid lab test reports from SGS, TUV, or Intertek to avoid customs clearance issues.

What customization options are typically available for B2B buyers?

Most professional manufacturers offer OEM/ODM services, including laser engraving, silk-screen printing, 3D printing, and gas dye sublimation for logos. You can also customize the Pantone color of the flask body and the design of the packaging box to align with your brand identity. Always confirm the MOQ (Minimum Order Quantity) for customized versus stock items.

Cross-Border Purchasing Considerations for Vacuum Flasks

How can I mitigate the risk of receiving defective goods in a large shipment?

Implement a Pre-Shipment Inspection (PSI) strategy. You should hire a third-party inspector to check the vacuum integrity (using a hot water test), leak-proof functionality, and surface finish. Using the Secured Trading services on Made-in-China.com can also protect your payment until the goods are verified to meet your quality standards.

What are the best strategies for negotiating pricing with vacuum flask suppliers?

Negotiate based on volume tiers and material costs. If the price of stainless steel fluctuates, ask for a price validity period. You can also reduce the unit cost by optimizing packaging volume to lower shipping expenses or by committing to a long-term procurement contract in exchange for a 5-10% discount.

What should I be aware of regarding international shipping and logistics for these products?

Vacuum flasks are relatively heavy and bulky; therefore, Sea Freight (LCL or FCL) is the most economical method for large orders. Ensure the supplier uses 5-layer corrugated export cartons and individual bubble wraps to prevent denting during transit. Clarify the Incoterms (e.g., FOB, CIF, or DDP) clearly in the contract to define responsibility for insurance and customs duties.

How do I ensure transaction security when dealing with overseas manufacturers?

Always verify the supplier's Business License and Audit Reports. Prioritize 'Audited Suppliers' on Made-in-China.com, as their manufacturing capabilities and financial standing have been verified by independent agencies. Avoid making full payments upfront; a standard 30% deposit and 70% balance against the Bill of Lading (B/L) is a common and safer practice.

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