In order to quickly deliver some hot sale tumbler and water bottles we have stock, there are more than ten of the most popular consumer favorite colors to choose from, 100pcs printed LOGO is acceptable.

Our MOQ is flexible and can be negotiated, giving you the highest flexibility in the testing market. We will calculate the cost correspondingly, hoping you can place large orders after checking the quality of our products and know our service. Please feel free to contact us, we will respond fast to your request.

Sure. We usually provide existing samples for free, but a little sample charge for custom designs. Samples charge is refundable when the order is up to a certain quantity.

We usually send samples by FEDEX, UPS, TNT, or DHL. If you have a carrier account, it will be fine to ship with your account, if not, you can pay the freight charge to our account, we will ship them by the fast way.

It takes about 2-4 days to reach. If you want your own designs, it takes 5-7 days. Click here to get a sample now!

1. Manufacturing Outer & Inner Bottle

①Pipe Cutting: Cut stainless steel tube to the appropriate length./ Stretch: Stretch the stainless steel sheet to the appropriate length.(seamless process)

②Water Expansion: Place the stainless steel tube on the water expander. The pipe expands into a bottle under enormous pressure.

③Separating: Cuts off the two shells after water expansion with the instrument cart.

④Positioning & Shaping: Uses a large press, you can get the outer bottle you want, and ensure that the size of the product meets the requirements of the process drawings, and there should be no obvious defects such as wire drawing or cracking in the mouth.

⑤Necking: Uses a machine to squeeze the upside of the bottle to be a bottleneck.

⑥Thread Rolling: Threads are made with a special threading machine. Adjust the thread depth to meet the size requirements.

⑦Flat Mouth & Bottom: Cuts the excess part of the mouth and bottom.

⑧Ultrasonic Cleaning: Removes lubricating oil and dust during molding.

2. Assembly Bottle & Bottom

①Assemble the inner bottle and the outer bottle together by pressing the machine.

②Assemble the round bottom to the bottle by pressing the machine.

③Weld the outer bottle and the bottle bottom to prepare for vacuum insulation.

3. Water Leakage Test

Check whether the welding of the inner and outer bottles is in good condition, and eliminate the unqualified products.

4. Vacuuming

Using the tailless vacuum technology of the machine, the vacuuming standard shall be strictly followed. A vacuum is formed between the inner tank and the outer bottle, thereby preventing heat transfer, providing insulation, and preventing hot hands.

5. Chemical polishing

Remove the dirt on the inner wall of the thermos bottle, and form a layer of electrolytic layer on the inner wall of stainless steel, so that the inner wall becomes more bright, not easy to attach dirt and easy to clean.

6. Mechanical Polishing

Polish the surface of the outer bottle to ensure that the mouth of the bottle is smooth and shiny. There must be no obvious wire drawing, scratching, black wire, and pits.

7. External Coating

The bottle is now ready for external coating – powder coating or spray painting or electroplate. Yihai is capable of doing both spray painting and powder coating processes. Controlled suppliers can make the perfect plating surface.

8. Pattern And Logo Printing

Print the pattern design and logo on the bottle with various techniques – screen printing, thermal transfer printing, water transfer printing, laser etching, 3D UV printing and so on.

9. Packing

After inspecting each bottle, including visual inspection and lid leak test, the bottle is placed in a separate bag for packaging.

Yihai is a wholesale insulated water bottle manufacturer in China for more than 20 years. We have rich experience in custom manufacturing all types of drink water bottles with high quality and competitive prices.

Vacuum insulated water bottle is generally a water container made of ceramic or stainless steel with a vacuum layer. It has a cover on the top and is tightly sealed. The vacuum insulation layer can delay the heat dissipation of water and other liquids installed inside to achieve the purpose of heat preservation. The insulated water bottle is developed from the thermos kettle. The principle of heat preservation is the same as that of the thermos kettle, but people make the bottle into a water bottle for convenience. And the water bottle is strong and durable and easy to carry.