ZK 500 / 600 M4

Knife folding unit with latest technology -
electronically controlled!
For extension on folding machines of the groups 35, 50, 54 and 74 as well as on strange machines as collecting stitcher, collecting machines etc.

Technical features

  • Rolating folding unit, for German and international four folds
  • Absolute noiseless drive without gears through V-belts and flat belts
  • Wear-free and electronically controlled adjustment of revolutions per minute with detector
  • Automatic impulse-setting through a reflection and photosensor assembly through the
    arriving sheet
  • Central adjustment of rollers with microadjustment
  • Adjustment of height, mobile and possibility to have it locked
  • Electricity can be switched-over from automatic to separate operation of strange machines
  • Strong kind of structure, maintenance-free, prepared for continuous operation

Infeed width:
max. 48 / 60 cm
in special execution 50cm
min. 14,8 mm
Format length:
max. 31 / 41 cm
min. 7 cm
in special execution 3cm
Infeed height:
(knife from the top)
max. 875 mm
min. 530 mm
Delivery height:
(knife from the top)
max. 770 mm
min. 425 mm
Infeed height:
(knife from the botton)
max. 865 mm
min. 525 mm
Delivery height:
(knife from the botton)
max. 970 mm
min. 630 mm
40 - 160 m/min., continuosly adjustable
by electronic speed regulation
Impulse number:
up to approx. 20.000 impulse/hour
Power required:
0,7 kW
Place required:
0,80 x 1,30 m
 / 0,95 x 1,30 m
Net weight:  230 kg



The folding unit is used in combination with G&K folding machines of the groups 35, 50, 54
and 74 or in connection with strange machines.

The folding unit is executed turnable - for the German and international four folds.

The run speed can be regulated continuously and therefore it is suitable for the switched

A reflection and photosensor assembly controls the folding knife by the arriving sheet.

The delivery side can be switched to the left and to the right.