Rewinders

An automatic label rewinder is a device installed at the output of a printer to collect printed labels and reform them into a roll. It accompanies the movement of the web and allows for a clean, regular roll that is easier to store, transport, or use in a subsequent operation.

A rewinder prevents printed labels from accumulating on the floor or around the workstation. It limits manual handling, facilitates long print runs, and helps keep labels properly organised. It is particularly useful for continuous production and rolls intended to be reused on another machine.

An unwinder is installed before the printer to feed it with a roll of labels. A rewinder is placed after the printer to collect the printed labels and form a new roll. Both devices can be used together on the same printing line.

A compact model is suitable for moderate-sized reels, small and medium productions, as well as for workstations with limited space. An industrial rewinder is more suitable for wide or heavy reels, high speeds, and continuous use. The choice depends on the characteristics of the rolls and the speed of the printer.

Yes, a compatible automatic rewinder adjusts its operation to the output rate of the printer. This synchronisation helps maintain a consistent tension on the tape and prevents it from being pulled too tightly or from accumulating. However, speed capabilities must be checked for each piece of equipment.

The direction of rotation should be chosen according to how the labels need to be oriented on the new reel, with the labels facing inwards or outwards. The positioning to the right or left depends on the configuration of the printer, the direction of the tape flow, and the available space at the workstation.

It is necessary to check the width of the tape, the outer diameter of the final reel, the diameter of the core, the weight of the roll, and the speed of the printer. The winding direction, any potential backward movements of the tape, and the alignment between the equipment must also be examined. DERFI can analyse the workstation configuration and guide the user towards a suitable compact or industrial rewinder.