Core Sizes

Measurements for cores are the internal diameter. Cores for label printers are normally made with a 3mm thick card, so the external diameter is 3mm larger than the internal diameter. You can find the specification requirements of your printer in the printer manufacturer’s documentation.

25mm38mm44mm76mm
Imperial Measurment1 inch1 1/2 inches1 3/4 inches3 inches
Imperial Measurement1 inch1.5 inches1.75 inches3 inches
Desktop Printer Suitability
Industrial Printer Suitability

Key:

This core size will fit in this printer type.

Check the manufacturer’s specification documentation or measure the physical dimensions of your printer feed spool.

This core size will not fit in this printer type.