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Label unwinders & rewinders
The category "Label unwinders and rewinders" includes equipment designed to efficiently manage the flow of roll labels, both upstream and downstream of printers or labeling stations. Unwinders ensure a smooth feeding process, while rewinders reform clean and usable rolls.
Designed for industrial and logistics environments, these devices optimize workstation organization and facilitate label handling. They improve productivity, minimize interruptions, and ensure a continuous, regular, and perfectly controlled flow across all operations.
Frequently asked questions about label unwinders and rewinders
A label unwinder is a device placed upstream of a printer to support the reel and regularly feed the machine. It accompanies the roll's movement, limits tension on the support, and facilitates the use of reels that cannot be installed directly in the printer.
A rewinder is installed at the printer's output to collect printed labels and automatically reform them into a reel. It prevents the tape from accumulating around the workstation and allows for a clean, aligned reel that is easier to store, transport, or use in a later stage.
The unwinder operates before printing: it feeds the printer with a reel of labels. The rewinder operates after printing: it collects the printed labels and winds them onto a new core. Both devices can be used separately or combined on the same printing line.
The combination of an unwinder and a rewinder allows for better control of the label flow before and after printing. It facilitates working with large-capacity reels, limits manual handling, and helps maintain a regular feed and rewinding during continuous production.
A compact model is suitable for workstations with limited space, for reels of moderate dimensions and for standard speeds. An industrial unwinder or rewinder is preferable for heavier reels, larger widths, and intensive use. The choice also depends on the speed of the printer and the organisation of the line.
The positioning depends on the direction of label flow, the configuration of the printer, and the available space around the workstation. A right version is installed on the right side of the machine, while a left version is placed on the other side. Proper alignment must be ensured to avoid any tension or deviation of the tape.
You need to check the width of the tape, the outer diameter of the reel, the diameter of the core, the weight of the roll, and the speed of unwinding. The winding direction, the printer's rewind movements, and the available space must also be considered. DERFI can check the configuration of the workstation and guide the user towards a suitable unwinder, compact rewinder, or industrial solution.