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Industries
Flexible Bending Center in the Elevator Industry
Elevator manufacturers produce their cars, landing doors and frames in batches that are much larger than most people realize, because the same cab design is installed in hundreds of buildings. The interior panels of the cab, the landing door leaves and the door frames are all folded sheet metal parts, and they are usually made of stainless steel or painted steel that has to keep a flawless surface. The flexible bending center is used in this industry specifically because it can fold the long, narrow stainless panels without marking the surface and with repeatable accuracy over a long run.
A typical elevator plant runs the bending center on the cab panels: the rear wall, the two side walls and the door leaves are folded from stainless sheet, with the edges folded back to form a clean, safe profile. Because the panels are assembled in the factory to check the fit before shipping, every panel has to be straight and square. On a bending center the clamping beam holds the full length of the panel while the folding blade works along the edge, which keeps the long panels straight in a way that is hard to achieve on a manual brake, where the operator has to manage the whole length of a heavy sheet by hand.
Surface quality is the dominant concern in the elevator trade. The cab interior is visible to passengers every day, and stainless panels with scratches or handling marks are rejected before assembly. The bending center does not drag the sheet across tooling, so the stainless surface comes off the machine clean. Elevator makers that supply stainless cabs mention that moving this operation to a bending center cut their panel rejection rate significantly and reduced the polishing time needed before assembly. On a high-volume door production run, that is a direct saving in both material and man-hours.
The elevator industry also benefits from the bending center’s ability to change programs instantly. Each building project may use a different cab size, but the machine switches between them with a program call, so the plant can fold panels for several projects in one shift without setup time. With elevator demand growing steadily and delivery schedules getting tighter, the flexible bending center has become standard equipment in elevator manufacturing plants, replacing the press brakes that were previously used for these panels and letting the factory take on more projects with the same floor area.
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FAQ
Burrs on cut edges,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Bending spring back and dimensional inaccuracy,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Cracking during stamping,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Welding deformation,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Surface scratches.
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Surface scratches.
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Burrs on cut edges,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Bending spring back and dimensional inaccuracy,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.
Cracking during stamping,
During laser cutting or stamping, excess metal burrs form on the edges of the sheet material due to unsuitable laser power or focal point settings, or severe wear of the stamping cutting edges.