AC serve controls front paper advance system Adopt German half-wheel type front paper advance:speed:ten thousand pieces per hour for paper sending;precision:±0.5MM Frequency conversion blower motor:air volume can be freely adjusted,which can meet requirement of air volume for paper sending Phase adjustment:micro computer control,quickly and accurately adjust phase of 360° Automatic thinning structure of soft roller can increase reuse rate of rubber sleeve and can be used there times ot four times U.S.CUE polyurethanes soft cutting rubber sleeve can be installed conveniently.Times for die-cutting:12million times