Ecoway Houseware Limited, offer one stop solution OEM manufacturing services in China for your custom stainless steel bottle tumbler from concept design to prototype sample, tooling development, trial run production to verify manufacturing processes capability & stability before you place an production order, after all quality/reliability test of samples meet design specification, our production and quality department monitor the whole manufacturing processes as per your PO from first sample inspection, mass production to pre-shipment inspection, manage all bottle tumbler products comply with quality standards to ship out to your warehouse.

Production Manufacturing Processes
Stainless Steel Vacuum Insulated Bottle Tumbler

Purchase raw material
Cutting stainless steel tube
Shape forming with water swelling ( or deep drawing forming)
Cutting into 2 pieces
Mouth forming with threads
Matching and welding the mouth of stainless steel flask (the out wall and inner wall join together then do Laser welding)
Welding the bottom cap and with an attachment of Getter
Vacuum process inside the vacuum machine around 4 hours to create vacuum insulated layer between the double walls stainless steel
Vacuum Test (measure the stainless steel vacuum flask is good quality or faulty on vacuum insulation) 100%
Electrolysis for the inside of the stainless steel vacuum insulated flask (it can clean the dirty to have nice surface, also create a layer on the inner surface to have good corrosion prevention)
Inspection of electrolysis quality 100%
Polishing the surface of outer wall of the stainless steel insulated flask
Inspection of Polishing quality 100%
Vacuum insulation test 100% second time
Decoration (spray painting, powder coating, water transfer painting, heat transfer printing, logo printing or laser engraving etc.)
Assembly with caps, cleaning, inspection, packaging
Out going final QC inspection