Screen updates 4-up platesetter

Screen has updated its 4-page PlateRite 4600 range of thermal platesetters with a new 4600N series, which appear to offer the same level of productivity as the outgoing series though Screen claims that it has improved their usability and that this should lead to reduced operating costs.

Screen has updated its range of 4-up platesetters with this new PlateRite 4600N series.

Possibly the most obvious change is that they are now capable of handling slightly larger plate sizes up to 830 x 680 mm, where the previous models took plates up to 830 x 660mm. The new sizing should be compatible with a wider range of printing presses. 

As before, the series includes three models – E, S and Z. Exposure is via fibre laser diode heads and the main difference between these variants is the number of diodes used. Thus the E model has 16 channel exposure heads, giving it a throughput of 11 plates per hour. The S model has 32 channel heads and a throughput of 21 plates per hour. The top-of-the-range Z model is fitted with 64 channel heads and can produce up to 33 plates per hour. These speeds assume that 724 x 615mm plates are used. Screen says that it has used similar laser diodes to the previous models, which explains why these speeds are the same as the existing versions, with Taishi Motoshige, marketing manager for Screen Europe, saying: “We understand productivity is important for our customers but reliability and energy saving are also important for them. We decided to enhance reliability and energy saving capability more using proved technology.” 

Screen also appears to have updated its matching single cassette autoloader with a new SA-L4600N, presumably to accommodate the larger plate sizes. This new autoloader is said to offer improvements in operability and is able to automatically supply up to 100 plates in one cycle. Individual plates can be fed manually at the bridge connecting the autoloader to the CtP system, so that other types of plate could also be inserted during production runs. Equally, the existing MA-L4600 multi-cassette autoloader can also be used with these models.

Screen has also reduced the amount of power used with the new models able to switch to energy saving mode to reduce electricity consumption when they’re not running. This is said to cut operating power by 51 percent though strangely this figure has been measured against the much older 4300S from around 2007 and not the outgoing 4600 models from 2016. 

The PlateRite 4600N series should be available worldwide during this month. You can find further details from screeneurope.com


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