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For high-end stainless steel decoration, kitchenware manufacturing, and architectural metalwork, achieving sharp, clean bends with ultra-small R radiuses is essential for premium product appearance and market competitiveness. This is where V grooving machines play a critical role in the sheet metal fabrication process.
V grooving works by precisely cutting a V-shaped channel along the bend line on the sheet metal surface, reducing the material thickness at the bend point. This allows for much tighter bend radiuses—as small as 0.2mm—compared to traditional bending methods, resulting in crisp, sharp corners that elevate product quality and perceived value significantly.
Sanxin's SJK vertical and PGNK gantry-type CNC grooving machines deliver ±0.05mm depth accuracy, ensuring consistent groove depth across the entire workpiece. Combined with our precision press brakes, we offer integrated "grooving + bending" solutions that help manufacturers produce premium stainless steel products with flawless finishes and perfect edge quality. Whether you're producing luxury kitchen equipment, high-end elevator panels, or architectural decorative elements, our grooving technology helps you stand out in the premium market.
V grooving is a process that cuts a V-shaped channel along the bend line on sheet metal, reducing material thickness at the bend point. This allows for much tighter bend radiuses (as small as 0.2mm), creating sharp, clean corners essential for high-end stainless steel products like kitchen equipment, elevator panels, and architectural decoration.
Vertical grooving machines process sheets vertically, offering higher precision and better surface finish, ideal for thin stainless steel sheets (0.5-3mm). Gantry-type machines process sheets horizontally on a worktable, supporting larger and thicker sheets, suitable for heavier-duty grooving applications.
The groove depth depends on your desired bend radius and material thickness. Generally, you leave 0.3-0.5mm of material thickness after grooving for a sharp 0.2mm R bend. For example, on a 1.5mm stainless steel sheet, you would groove 1.0-1.2mm deep. We provide detailed grooving parameter charts with every machine.
Yes, our CNC grooving machines support double-sided grooving. You can program groove positions on both the front and back of the sheet, and the machine will automatically flip or reposition as needed. This is useful for complex parts requiring bends in both directions.
Our SJK and PGNK series grooving machines deliver ±0.05mm depth accuracy and ±0.1mm positioning accuracy. This ensures consistent groove depth across the entire workpiece, resulting in uniform bend angles and perfect corner sharpness throughout production runs.
We look forward to working with you!
If you have any product inquiries or need tailored sheet metal machinery solutions, please feel free to contact us. Our team is ready to provide professional recommendations and competitive quotations.
