header pin

Consumables for web press folders

compatible with roto-offset, rotogravure and flexographic machines of the following brands: KBA, MAN, Cerutti, Heidelberg Harris, Goss, Rockwell, Mitsubishi, Solna, Wifag, Timson, Nebiolo.
Circular knives, Bottom knives, Circular perforators, Linear cutting blades, Linear toothed cutting blades, Linear perforators, Tucker blades, Fixed and mobile jaw blades, Folder pins, Pin holders and adjusting screws, Cutting sticks, Pressure bars, Blade holders, Sheet guides and conveyors, Paddle wheels, Foam pads, Tension rollers, pressure rollers, rings, roller nips and nip segments, Transport rollers / Drag rollers / Rollers top of the former, Grippers and gripper pads, Brushes, Bearer pads, Doctor blade, Wash-up blade, Ink tucking blades in segments, Former noses, Drive belts, pulleys and guides.

Bottom knives

In harmony with the upper circular knife, the bottom knife must be made from a material that is compatible with the upper circular knife as well as respecting technical specifications such as: eccentricity and perfect planarity.

Only these characteristics can guarantee the perfect cutting of the material, without tears or burrs, as well as the long life of the bottom knife. Ulmex produces single piece and two piece bottom knives with classic clean cut obtained through breaking.

CONTROCOLTELLI 1CONTROCOLTELLI 2CONTROCOLTELLI 3

Materials 

HCHC - Chrome steel - tungsten - HRC 59

HSS - Tungsten steel (High Speed Steel) - HRC 62

ASP - Sintered steel (metallurgical powder) - HRC 64

HM - Hard metal (tungsten carbide) - HRC 68 
 
Treatments

Hardened 
 
Technical specifications 

External diameters from 75 mm to 160 mm

Internal diameters from 60 mm to 100 mm

Thicknesses from 5 to 20 mm

Free-locking or self-locking bottom knife operation only  

  • Technical characteristics other than those cited above on request