Brief Instruction: this machine is fully closed lapping avoiding the dust to enter into insulating papers. Tensile force is a mechanical constant tension, an apron wheel is used for drawing without any slide to guarantee the synchronous transmission in speed. The synchronization serrate belt is used to transmit the whole machine to guarantee the lapping pitch of multi-layer papers not to float. It adopts the paper-breaking automatic stop device and the electric stepless transmission controller to adjust the lapping pitch to assure the overlapping degree. Applicable range: Width 4~20mm Thickness: 1~15mm, Section: 4~100mm² The ratio of Width / thickness: 0.4~12 Covering head: caged type The range of covering pitch: 8~30mm, electric digital display, stepless adjustable speed. The floating range of covering pitch: ±0.4mm Tensile force of covering: mechanical, automatic, constant tensile force adjustment Rated speed of covering head: 800RPM The maximum operation speed of covering head to be assured: 600RPM Taping speed: 10m~15m / minute