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Flexo printing

Innovative newspaper printing with water-based inks

KBA also plays a leading technical role in flexo newspaper printing. The biggest newspaper flexo press in the world is currently in action at Harmsworth Quays Printing (HQP) in London. This KBA Flexo-Courier installation, which has been extended on several occasions and in the meantime counts 220 printing couples, including two sections with practically gearless drive technology, prints well over two million newspapers every night, demonstrating its high quality and efficiency.  
KBA Flexo-Courier: user friendly 
The KBA Flexo-Courier is a high-performance new-generation tower press for printing colour newspapers and semi-commercials. Its waterless flexo inks are rub-resistant, environmentally friendly and deliver sharp, brilliant colours. The absence of ink keys and the complex presetting electronics associated with them cuts investment costs, eases handling and guarantees a consistently high image quality. This, in conjunction with a high production output, makes for an exceptionally cost-effective press. 
 
Biggest newspaper flexo press in the world  
Flexo-Courier-Großanlage at HQP in London 
Full spectrum of innovative technology for efficient newspaper printing 
Beltless reelstand KBA PASTOMAT CL 
  • KBA PASTOMAT CL, an automatic reelstand of the newest generation, with beltless AC drive  
  • KBA PATRAS, a flexible and high-performance system for reel handling and transfer to the reelstands, in a variety of modular configurations from manual to fully automatic versions  
  • Proven superstructure design for double-width presses with a full range of options, such as balloon former, bay-window web guides, etc., to suit individual production requirements  
  • KBA KF 5 and KBA RF 3 folders with cutting-edge technology, tailored to individual demands as to folding type (jaw or gear fold), output and number of pages  
  • Customised automation with the latest control console technology, ink supply system for black and process inks, etc.  
 
KBA KF 5 to deliver up to 120 broadsheet pages 
Brilliant colour on different paper types 
The latest generation of Flexo-Courier presses are tower-configuration newspaper web presses for 4/1 or 4/4 production with keyless inking units, and possess both shaftless drives with an AC motor for each cylinder and innovative imprinter technology without additional printing couples. In the flexo inking unit a chambered doctor blade feeds the ink to the screen roller, which transfers its ink film to the soft printing plate. The back pressure is provided by a hard impression cylinder. The cells in the anilox roller are filled with fresh ink and topped off by the doctor blade on each single revolution, which means that the plate cylinder always receives a new film of ink.  
Multicolour newspaper printing with flying plate changes 
  • Without ink keys and the corresponding setting electronics, providing for uncomplicated operation  
  • Minimised start-up wastage - especially important with many regional part editions 
  • High net production output for long runs  
  • Outstanding ease of operation through excellent access to the printing units, with pneumatic switching of the plate cylinders  
  • Proven technology of dedicated drives for each cylinder simplifies operation  
  • Oil-free and gearless printing units make significant contributions to environment-friendly printing  
  • Innovative imprinter technology with optional second plate cylinder in the printing unit  
  • Flying plate changes with minimum wastage and without additional printing couples, even up to 4/4 production  
  • Wear-resistant ceramic screen rollers ensure constant inking, even over long runs  
  • Supplements on coated stock can be printed together with newspapers on uncoated stock, without the need for a dryer  
 
A dedicated AC motor for each cylinder 
Max. web width  

 

 

1,200 - 2,200 mm

Cylinder circumference 

 

 

900 - 1,200 mm

Max. output 

 

 

40,000 cyl. rph (80,000 cph in straight production)

Printing units 

 

 

Flexo printing unit with screen roller

 

Individual dedicated drive on each cylinder

Option 

 

 

Imprinter function up to 4:4 production with optional second plate cylinder

Reelstand KBA PASTOMAT CL 

 

Max. reel diameter 1,524 mm
Max. web width 2,520 mm
Max. splicing speed 17.2 m/s

Folder KBA KF 3 

 

Cylinder ratio 2:3:3
Max. output collect 80 broadsheet pages

Folder KBA KF 5  

 

Cylinder ratio 2:5:5
Max. output collect 120 broadsheet pages

Folder KBA KF 7 

 

Cylinder ratio 2:7:7
Max. output collect 144 broadsheet pages

Folder KBA RF 3 

 

Cylinder ratio 3:2
Max. output collect 160 broadsheet pages
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