Cold Bending Machine

Product Series: 400T, 600T, 700T, etc.
A cold-bending machine uses a cold forming process to shape steel plates into a variety of complex hull surfaces. As the mainstay of hull surface forming, it can precisely bend marine steel plates with thicknesses ranging from 6 to 50 mm into the desired curvature, meeting the processing needs of curved plates for applications ranging from small yachts to oil tankers, while preserving material properties unaffected by heat. Compared to traditional hot bending processes, cold bending can improve hull line accuracy by three times, achieving surface quality standards up to Sa2.5, creating ideal conditions for subsequent welding.

The cold bending machine utilizes a symmetrical arrangement of three or four rollers, applying progressive pressure to the steel plate, causing the metal to undergo elastic deformation followed by a plastic deformation state. This CNC cold bending machine is driven by a servo motor, with a PLC control system precisely regulating the pressure and feed speed of each roller, achieving a forming accuracy of ±0.5 mm/m. During the bending process, a real-time feedback system monitors plate deformation and automatically compensates for springback, ensuring the final dimensions perfectly match the design. For special double-curved plate parts, the equipment can implement multi-axis linkage control, achieving precise forming of complex three-dimensional surfaces.

In terms of processing quality, cold forming avoids the heat-affected zone, maintaining up to 98% of the material's mechanical properties. Economically, energy consumption per piece is reduced by 60%, and labor hours are saved by over 50%. It also offers outstanding environmental performance, completely eliminating smoke and exhaust pollution generated by hot working.