Vacuum Bottle Metal Workshop: Where the Inner Vessel is Born

This is the heart of insulation performance—our dedicated metal workshop for vacuum bottles. Here, we specialize in transforming premium stainless steel sheets into the double-walled, vacuum-sealed inner vessel that makes prolonged temperature retention possible.

Precision Rim Forming

This production line is the core precision finishing process following the body stretching and forming stage. It utilizes high-precision CNC equipment (such as CNC spinning machines, rolling machines) to perform plastic working on the cup rim. This ensures the rim achieves precise diameter, roundness, specific thread or locking structures, and a smooth, burr-free edge. It directly determines the lid's sealing integrity, screw-on feel, and the user's drinking experience, serving as the critical precision control point that connects and matches the functionality between the cup body and the lid.

Polishing & Finishing Line

Rough Polishing (Deburring): Specialized abrasive belts or 磨料 remove minor scratches, weld marks, and oxidation from stretching and welding.

Intermediate Polishing (Smoothing): Even, overall grinding establishes uniform smoothness and a base luster, ensuring seamless curves and no imperfections.

Fine Polishing (Finishing): High-grit polishing wheels or fiber wheels create the final surface — achieving the desired matte, brushed, or mirror finish by eliminating all micro-textures.

Body Re-inspection Station

This is the centralized inspection hub after basic body processing. Before proceeding to higher value-added stages like coating, printing, or final assembly, every single body must pass rigorous re-inspection for dimensions, surface quality, and structural integrity — ensuring only precision-qualified blanks move forward.

Manual Packaging Line

This is the last human-operated station before the product begins its journey — the Manual Packaging Line. At the end of the moving conveyor, experienced packagers follow meticulous procedures and apply careful hands-on attention to transform each product into a well-protected parcel, ensuring it reaches you in perfect condition.

Every vessel undergoes precise cutting and multi-stage deep drawing, ensuring uniform wall thickness for both inner and outer layers. The core vacuum insulation process takes place in an ultra-clean environment, where high-temperature exhaust and permanent sealing technology create a stable, lasting vacuum barrier. Our CNC welding equipment ensures every joint is precise, strong, and smooth, forming the reliable foundation for leak-proof performance.

From coil to finished vessel, we maintain millimeter precision and rigorous cleanliness controls, safeguarding the very “heart” of your bottle. We believe exceptional insulation starts with mastering every molecule of metal.