Hauni KDF-1

Circumference control runs on a laser system, checking filter diameter continuously rather than through periodic manual sampling, which matters most on long runs where a drifting tolerance can go unnoticed until it shows up as rejected product downstream. PLC control is available in SIEMENS or BECKHOFF, paired with either Lenze or Beckhoff servo drives, both of which have active parts and service networks.

At 40KW, this is the lower-power option between the two KDF platforms, sitting below the KDF-2 in total power draw. That difference comes from the mechanical design rather than a shortcut in build quality.

Finished filter rods go into trays that feed the filter rod magazine on the maker's tipper (typically a Max S or Max 80), so the KDF-1 needs to run faster than the tipper consumes rods to keep that buffer from running dry. Rod quality itself comes down to four things in practice: garniture tape condition and tension, plasticizer application rate, cutting blade sharpness, and how well the circumference sensor is calibrated. A drift in any one of those tends to show up as rejects at the tipper rather than at the KDF-1 itself, which is why it's usually the first place to check when tipper rejection rates climb.