1. Feeding Methods
Currently, there are mainly two feeding methods for bending centers. One is suction cup feeding, which uses a vacuum pump to create negative pressure to adsorb the sheet metal. This requires the surface of the sheet to be smooth and flat to ensure that the workpiece will not be displaced during feeding and rotation.
The other method is pressure arm feeding, where the workpiece is clamped by upper and lower pressure claws. This method does not require the sheet metal surface to be smooth and flat. Even if there are pores, surface marks, or more complex workpieces, as long as there is a place for clamping, it can be used, unlike suction cup feeding. The pressure claws of the pressure arm are generally smaller and can adapt to smaller-sized workpieces.
Suction cup devices have significant structural and feeding principle differences compared to pressure arm devices, and there is also a considerable price difference. If a suction cup device can meet the requirements, choosing a suction cup feeding bending center may also be a good option.
2. Workpiece Unfolded Material Size
The difference between a 1-meter device and a 2.5-meter device is significant. The biggest advantage of bending centers lies in mass production. When selecting a bending center, the best reference is the unfolded material size of the workpiece that needs to be mass-produced.
3. Workpiece Thickness
When customers choose a bending machine, they need to determine whether it is a standard type or a custom type based on the workpiece thickness. The maximum bending thickness of a standard machine is 2.0mm. If a company has higher bending plate thickness requirements, they can choose a custom type, with a maximum plate thickness of up to 3.0mm.
4. Bending Shape
Why customize a bending center when using a universal mold? This is because when the lower bending blade folds up the final edge, the inclined surface of the press blade may collide with the workpiece, preventing the final edge from folding to 90 degrees. In this case, according to the workpiece process, a custom upper press blade is needed to trim off the colliding part, enabling successful bending.
