Used Guk FA 21/4-2K leaflet bender

Maximum advancement in width: 210 mm
Minimum feed in width: 148 mm
Maximum advance in length: 320 mm
Max in special version: 650 mm
Minimum advance in length 90 mm
Minimum bend 30 mm
Folding possibilities:
Station I: 4 folding pockets for 1-4 parallel folds
Station II: 2 folding knives for 1-2 knife folds
Paper weight
Recommended paper weight: 45-70 g/m
Capacity
Sheet length below 320 mm - up to 200/min
Sheet length above 320 mm - up to 150/min
Drive
From case packer - via chain
Sound pressure level: 80 dB (A) (without sound insulation)
Dimensions / weight
Length x width x height 0.963 x 0.998 x 0.619 m
FA21/4 - 2K Folding unit - approx. 200 kg
Paper specifications :
The following paper quality and paper storage requirements apply in the case of thin papers to enable defect-free operation:
Material: thin matt and wood-free printing paper
Paper weight: 40-80 g/m
Thickness ( Din 53105, part 1 ) - 55 um ( 52-58)
Format: as required, e.g. 21x30 cm / guillotine cut angled on four sides / on four sides +/-0.5 mm
Fibre direction for paper
From 40-80 g/m² : 90° towards the folding edge
Porosity ( Bendtsen ) : 60 ml/min ( 30-90)
Smoothness/sec. according to BEKK : 60 ( 30/90)
Relative humidity of assimilation 52 % ( 46/58 ), 20°.
Ash: 15 % (13/17)
Brightness DIN 53145, part 2: 75
Opacity: 75
Luminance (ciba - geigy scale): 6
Double fold 150 means both LR and LR value
Flexural strength IN 7 Mn average value / according to 2 points: longitudinal - horizontal ( method DIN 53122 )
Storage: In stacks, airtight sealed in foil, with cover of the same format and base board ( 1 mm )
Static charge: To avoid static charge, sealed paper stacks should be stored in the refrigerator and should not be removed until shortly before use.