Bottle Body Forming: Shaping Stainless Steel Tubes into Cup Bodies
After the stainless steel tubes are cut to size, the next critical stage in producing insulated bottles is forming the cup body. This step transforms raw tubes into precise bottle shapes, ready for welding, finishing, and assembly. At our factory, we combine high-powered machinery, skilled operators, and automated systems to ensure each cup meets strict quality standards and consistent dimensions.
Step 1: Loading and Automated Handling
The cut stainless steel tubes are first placed into the forming line. A trained operator loads the tubes into the feeding bins, allowing our robotic arms to pick them sequentially and efficiently. This system ensures that each tube is handled in a controlled, orderly manner, minimizing errors and material waste.
Step 2: Initial Shaping with Water Pressure
The tubes are formed using high-pressure water stamping, which applies a full 360-degree force to achieve the desired cup shape. This method allows us to accurately replicate the model design while preserving material integrity. The process is fully aligned with pre-set molds, ensuring each bottle maintains uniform dimensions from start to finish.
Step 3: Precision Cutting and Trimming
Once the basic cup shape is formed, robotic arms guide the tubes into 2kW laser cutting machines, splitting multiple cups and removing excess material along the edges. A second high-power laser station trims the cup opening, eliminating burrs and imperfections. This ensures the cup body is perfectly smooth and ready for subsequent processing.
Step 4: Cup Mouth Forming with Hydraulic Press
Each cup passes through a 200-ton hydraulic press to refine the cup mouth, making it more rounded and precise. This step is essential for both the aesthetic and functional quality of the bottle. Correctly shaped mouths make later welding easier and improve the overall durability of the final product.
Step 5: Precision Calibration and Threading
Our engineers perform fine calibration to control the cup mouth diameter within the thickness of five human hairs, achieving exceptionally tight tolerances. Threading for lids is also carefully processed during this stage, ensuring secure, leak-proof assembly. Attention to these details reduces assembly difficulty and improves product consistency.
Step 6: Quality Inspection
Every cup body is checked by our operators and automated systems. Any cup that does not meet our strict quality criteria is immediately removed, and the responsible engineer is notified. Our semi-continuous 24-hour production line can produce up to 10,000 cup bodies per day, maintaining high quality and efficiency.
Why This Stage Matters
Bottle Body Forming sets the foundation for all subsequent processes, including welding, vacuum insulation, and coating. By ensuring precise shaping, smooth surfaces, and exact dimensions, we make the next steps more efficient and guarantee a higher-quality final bottle for your brand.
Next Step
The next stage is welding, where the cup body is fused into a finished bottle structure. For any questions about bottle body forming or custom requirements, feel free to contact us directly. We are ready to help you produce premium, reliable insulated bottles.
Follow each step to see how we produce stainless steel insulated bottles from raw materials to finished products.
Ready to Create Premium Stainless Steel Bottles?
100% Quickly Support!
Turn your full-color designs and 3D UV effects into premium stainless steel bottles with fast service and flexible MOQs.
Message us to start your custom project today Whatsapp: +86 15156387073.
