Both bending machines and coilers can be used for sheet metal forming, and choosing the right tool is critical to ensuring productivity and product quality. For these two common types of metal forming equipment, they each have unique features and usage scenarios.
Bending machines are much more versatile machines that still require special tooling for molding certain parts. Plate rollers are faster and more suitable for high-volume production. CNC systems have greatly simplified the rolling and forming of workpieces on plate rollers, and still require some experience and shop knowledge to operate the system efficiently. Today even novice machine operators can use a bending machine to accurately form parts with the assistance of CNC backgauges, CNC rolling, and specialized tools.
In addition, the diameter of the finished workpiece, the length of the workpiece, and the yield and tensile strength of the material determine whether it makes more sense to use a bending machine or a plate winder. All of these variables will affect the force required to bend the sheet metal and the dimensions required. This article will explore the features of both devices to help you determine which tool is the most appropriate choice for a particular job.
Bending Machine
Press Brake is mainly used to bend metal sheets into desired angles and shapes. It bends the material by applying pressure to cause plastic deformation of the sheet metal.
Features:
High Precision: Bending machines are able to accurately control the bending angle and dimensions, which makes them suitable for applications requiring precision machining.
Versatility: modern bending machines are usually equipped with CNC systems, which can be processed in complex shapes.
Easy to operate: CNC bending machines are easy to program and operate, improving productivity.
Applicable Scenarios:
Metal processing requires precise bending angles.
Repeated bending of parts of the same shape is required.
Processing of plates with little variation in thickness and width.
Plate Roller Machine
Plate rollers bend sheet metal by rotating a reel to roll it into a cylinder or other shape. Plate rollers are suitable for continuous bending processes. The main advantage of the plate bender is its versatility. Apart from forming cylinders, it can also form sharp 90-degree bends and various other angles which are considered normal pressure brake work.
Features:
Continuous bending: suitable for rolling cylinders, cones, and other shapes.
Adaptable: Can handle plates of different thicknesses and widths.
Labor-intensive: compared to a bending machine, the operation of a plate rolling machine may require more manual involvement.
Applicable Scenarios:
Processing that requires rolling into cylinders or other curved shapes.
Single-piece or small-lot production of parts with variable shapes.
Large bending radii need to be made in the plate.
Selection Guide
Consider the following factors when choosing a bending machine or coiler:
Shapes to be machined: If precise bending angles and straight edges are required, a bending machine is a better choice. If a part needs to be rolled to a specific curvature, a coiler may be more appropriate.
Production volume: High-volume production is usually better suited to a bending machine because it allows for greater efficiency and consistency. Low-volume or single-piece production may be better suited to a coiler because it is more flexible.
Material properties: Consider the thickness, width, and strength of the material. Certain materials may be better suited for processing with a bending machine, while others may be better suited for a coiler.
Cost-effectiveness: Evaluate the cost of the equipment, running costs, and maintenance and select the most cost-effective equipment.
