VLF digital computer to flexo plate imaging system

Machine brief introduction

VLF FL4835 is a fully digital computer to flexo plate making machine. It allows max. imaging area 1200*1020mm and max. resolution at 5080dpi. Equipped with a newly developed 256-channel laser printhead, this model could engrave a 50x80 inch full dot plate in 30 minutes at 5080 dpi. At 5080 dpi, it can image slant or circular lines as fine as 15 um and rectanggle dot as fine as 5um*5um, to ensure an accurate focus and better dot quality.

The model has 3 speed setting for customer's option. The max. imaging ares is 1200*1020mm and min. imaging area is 200*200 um.

Parameter 

Key technical features

1. The model has independent control of 256 channels LV technology, together with distance detection and voice soil motor dynamid sutofocus deveice, It can make sure accurate focus on media surface disregard the variance on flexo plate material thickness.
2. The new generation of LV device can also allow to raise the resolution to 10160 dpi, at this super hgih resoution, the laser spot size is 2.5um*2.5um and can images 5 or less un lines. It uses a high energe power fiber laser device, and takes only 30 minutes to output a full images size of 50inch*80inch plate, an 10% increasing of productivity for urgent need.

      3. The 256 LV head makes rectangel dot, instead of a round dot.

When using a round dot spot for imaging, the diameter of the spot size should match the image dot size. For example, for 5080dpi, the image dot pixel size is 5umx5umwhich is like a square area. So if using a round light spot size of 5u diameter, the light cannot expose the four corners of the square area. In order to ensure the light spot can expose the full image pixel area, the round dot spot diameter needs to be a larger size which is equivalent to the diagonal length of the square area. That is 7.07um which is 1.414 times the dot size as shown below.

Supporting processor device 

The flexo machine FL4835 makes images on flexo plate. Then the plate will go into next step: flexo plate processing. The model is FL1400, which is an all-in-one multifunctional flexo plate imaging machine. The back exposure, main exposure, washing, detacing and drying will take place in this deveice .

Machine features:

1. AlO of exposure, washout, drying, and anti-tacking.

2. MPU central control panel, easy operation.

3. Adopt imported UV tubes, specialized electronic ballast.

4. Washout water circulation with filter and use; auto constant temperature heating system for the water tank.

5. Strong vacuum device, parallel sucking aip plate strongly.

6. Hot air circulation device, safety and more meeting specifications for plate-making.

7. Accurately reproduce the original colors and graphic, working steady.

Flexo prepress procedure 

Factory and other prepress family for reference 

We Ecoographix focus on prepress machines, including below categories:

1. thermal CTP machine, including the 400mm format, 800mm format, 1200 format, 1400 foramt and 1600mm format;fully automatic or semi-automatic;

2. UV CTP Machine, 400/800/1400/1600mm format; Fully automatic or semi-automatic;

3. Flexo CTP machine, making images on flexo plate, including FL400/600/800 and FL 600M to make imges on metal-based flexo plate, and VLF format FL5080 and FL 4835.

4. Film imagesetter, DX serious to makes images on film. We have DX1800/2800/4800/2000.

5. Other supporting devices, parts and consumables and workflow: like processor, stacker, autoloader, densitometer, offset printing ink, CTP plate, flexo plate, violet plate, film, offset printing blanket, laser diodes, chemistry, Harlinquin RIP, vacuum, UPS, driving computer, air compressors, etc.

This is to make sure that customers could always find the most suitable solution in our booth.