Heidelberg 42.431.302 Rotary numbering box LEI 302-420S

The Rotary Numbering Unit Advance Angle Adjuster, also known as a numbering head, counter, or positioning unit, is a precise component in the numbering machine category of printing technology, manufactured by Heidelberg. It bears the OEM part number 42.431.302. It has the dimensions 10 x 10 x 10 cm and weighs 0.35 kg. This component serves to precisely adjust the rotation angle for the forward stroke of numbering, ensuring accurate positioning of the digits on the print sheet. Typical applications include printing houses for the continuous numbering of documents, forms, or tickets, as well as in the production of security prints and the personalization of printed matter. This spare part is compatible, among others, with the machines 'Heidelberg QM 46', 'Heidelberg SM 52', 'Heidelberg GTO 46', and 'Heidelberg GTO 52'.