Inner 316 outer 304 stainless steel double drink vacuum flask source factory｜OEM/ODM customized wholesale

Welcome to our source factory for high-quality stainless steel vacuum flasks. With over 10 years of experience, we specialize in manufacturing 316 inner / 304 outer double drink vacuum bottles that combine durability, style, and superior insulation. Our featured product is available in 650ml, 800ml, and 1000ml capacities, featuring a screw lid with a portable rope – perfect for outdoor, business gifts, and daily use.

As a trusted B2B wholesale supplier, we offer:

Custom OEM/ODM services: A

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Product Detail

1. Q: What is your MOQ for custom vacuum flasks? Can I start with a small trial order?

A: Yes, absolutely! Our custom vacuum flask wholesale service has a minimum order quantity of just 100 pieces. You can mix colors and capacities (650ml, 800ml, 1000ml) in one order. This allows you to test the market with minimal risk before placing larger bulk orders. We ensure the same high quality for small batches as for mass production.

2. Q: Is the inner material 304 or 316 stainless steel? Do you provide certification?

A: Our standard model features a food-grade 304 stainless steel inner and a durable 201 stainless steel outer (customizable to 304 outer upon request). For premium requirements, we offer 316 inner customization – ideal for高端 brands or acidic beverages. While this specific product does not come with a pre-existing third-party report, we can arrange FDA, LFGB, or other certifications at your request. The report will be issued directly to you, ensuring full compliance with your target market regulations.

3. Q: What is the customization process for logos? How long does it take?

A: Our OEM stainless steel vacuum cup process is simple and transparent:

Step 1: Send us your logo in vector format (AI, CDR) or a design sketch.

Step 2: We provide a free 48-hour sample or 3D rendering to confirm the print position, color, and effect.

Step 3: After sample approval, production takes 15-20 working days (depending on order quantity).

Step 4: We share photos and quality reports before shipment. A dedicated project manager will keep you updated throughout the process.

4. Q: How do you ensure consistent quality for bulk orders, especially for vacuum flask OEM?

A: With 10 years of experience as a source factory, we have a strict quality control system:

Incoming inspection: All raw materials (stainless steel coils, plastic parts) are checked for certifications.

In-process control: Key stages like vacuum welding, polishing, and sealing are monitored with regular inspections.

Final inspection: Every flask undergoes leak testing, insulation performance checks, and visual inspection before packing.

Batch samples: We retain samples from each batch for traceability. Third-party inspections are welcome.

5. Q: Do you offer packaging design services for promotional gifts, such as for restaurant chains?

A: Certainly! We provide one-stop ODM services, including custom packaging design (gift boxes, poly bags, labels) that align with your brand identity. We can also handle assembly and drop-shipping if needed. Just share your requirements, and we’ll create a tailored solution for your custom insulated bottle wholesale project.

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