Whether conventional UV, HR UV or LED UV - KBA Rapida sheetfed offset presses accept any type of curing system. Even better: the dryer modules can be inserted at any position, affording total flexibility in configuring the dryers for each job. Added to which the radiation units developed and manufactured in-house by KBA are much lighter than rival systems, so they are easier to handle.

KBA VariDry HR UV
KBA's HR (high-resolution) UV system incorporates proven VariDry UV technology, and has merely been modified to accommodate the specific requirements of new UV users and commercial printers. For most applications it is possible to cure up to five colours with just one UV module. The radiator output is freely adjustable between 80 and 200W/cm. This helps reduce energy costs. The system is suitable for both conventional and highly reactive UV inks. Energy savings and curing efficiency always depend on the ink formula as well, so using highly reactive UV inks from KBA can be an advantage.

The VariDry HR modules, like the conventional UV dryer modules, can be plugged in at any position, and our Rapidas are preconfigured with the necessary sockets. The two types of module can be alternated or mixed. Upon request the system can include ozone-free radiators and an active carbon filter in place of the ventilation pipes.

LED-ready UV dryers
One of the benefits of UV LED dryers is that they can simply be switched on and off: there are no standby times. Another is that the light-emitting diodes can be actuated according to the print format, and there is no IR radiation component. At present the relatively high initial cost and limited choice of consumables are impairing the widespread adoption of UV LED dryers. So we offer potential users UV LED-ready dryers which are preconfigured for the later addition of UV LED modules.

The ability to insert UV LED dryers at any position within the press means that they can be used for print applications that could not be handled by fixed UV LED systems. The ability to switch back to conventional UV dryers at any time, or to deploy a combination of both dryer types, enhances press efficiency and expands the choice of substrates and jobs that can be handled.