Stainless Travel Tumbler

We use a laser welding machine to join the cup body and bottom. The heat from laser welding affects only a small area. It does not damage the paint nearby. The weld seam is only about 0.3 mm wide. We do pull tests on the weld. The weld is even stronger than the base metal. Every day before starting the machine, we make a test weld. We look at the test weld under a microscope to check the depth. If the depth is not enough, we adjust the settings. We do not use spot welding. We use continuous welding for better sealing. That is why this stainless travel tumbler rarely leaks from the bottom.

Our workers check every weld with their eyes. They look for holes, cracks, or rough edges. Then we do a seal test. We fill the welded cup body with air and put it in water. If bubbles come out, there is a leak. We do this test for every product. Our defect rate for welding is below 0.5 percent. If the rate goes higher, the technician stops the machine and finds the problem. We never let a stainless travel tumbler with a bad weld go to the next step. This careful process gives you a reliable cup.

This stainless travel tumbler has a handle. The 12oz size is good for a small coffee or tea. You can use it at your desk or in your kitchen. The paint and powder coat options let you add your brand colors. The laser welding makes sure the cup does not leak. We also do a seal test on every cup. If you want a sturdy and safe cup, choose this product. Our factory controls every step from welding to final packing.

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