Used for pre-punching and reinforcing the web. The single board up punching or down punching can be selected according to individual needling system. The lower needle density is for the primary needling treatment of fiber web. Main specifications Working width (2200～10000) mm Needle density (2000～6000) n/m Needle stroke (40～60) mm Needle frequency (800-1200) s/min Needling type single board, down stroke Structure. Crank case complete with a vertical balance system.
Central oil lubrication circulation and cooling system complete with pressure and temperature alarm systems. Magnesium alloy/ PU combined needle board locked firmly by lock-bolt or air tube; multi random computer needling methods for needle board.
Chrome plated delivery rollers with carved or patterned surface. Auto top dead center controlled stop.