The TOPMATIC warp tying machine is designed for universal use in warp changing. It is quick to set up, easy to operate, and ties reliably very fine yarns. The model range includes machines for tying single knots, double knots, or both. Repeat programming considerably increases the tying quality of colored warps. The display shows operating status, tying speed, number of yarns tied. Process data is retrievable per warp and per shift.