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Unwinders

Unwinders

With the exception of lines fed by blanks, unwinders are the start of every sheet metal forming process. This equipment conducts the unwinding of the coils.

Stopping the machine to change coils represents the most unproductive time in the process. To make the most of a roll forming machine's potential, we recommend purchasing unwinders with a high load capacity.

Unwinders are available in different models, varying according to the weight, width and maximum outside diameter of the coil, the thickness of the sheet, the yield strength of the material, the speed of the process and the sizing of the brake.

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Technical features and options

  • Manual or hydraulic expansion chuck;
  • Single or double unwinder to speed up the process;
  • Rider roller, for greater safety (optional);
  • Disc brake for speeds up to 60 m/min for rollformers;
  • Water-cooled brake for speeds up to 450m/min for tube formers;
  • Reel trolley (optional);
  • Manual or motorized double unwinder swivel (optional);
  • Ease of operation and maintenance.
Peso Máximo (ton.) 3 3 5 5 6 7
Mandril simples duplo simples duplo duplo duplo
Larguma max. da fita (mm) 320 320 390 320 320 400
ø externo (mm) ø2.000 ø2.000 ø2.000 ø2.000 ø2.000 ø2.000
Expansão do mandril ø430-ø550 ø430-ø550 ø430-ø550 ø430-ø550 ø430-ø550 ø580
Sistema de expansão manual manual hidráulica hidráulica hidráulica hidráulica
Rolo cavaleiro não não sim não sim sim

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