|Shaftless Web Offset Press, Color Top 8200CMCD
Color Top 8200CMCD is the first TKS installation in Europe. It is a commercial offset press which has been developed based on the technology accrued through Newspaper Tower Offset and Directory Tower Presses technology. This press is to be installed at MIRANDELA ARTES GRAFICAS in Lisbon, Portugal.
This press is for heatset press production with 1,240 mm cylinder circumference and 1960 mm maximum web width. The folder is available to deliver various A3 and A4 formats with jaw folding and chopper folding with different web widths. Available constant printing speed of 37,500 RPH for A3 format and 18,000 RPH for A4 format using the chopper. The press is consisting of one Reelstand, Infeed Device, 4/4 Tower Printing Unit, Air Turning Device, Dryer, Chill Roller Device and Folder with a 11.7 m height and a 22 m length. The press foot print of 22 meters in length is possible with a dryer length of 13.5 meters, by using TKSs commercial Tower Unit. The web flows vertically through the Tower. Using an Air Turning Bar, the web flows through the oven across the Chill Rollers and down to the Folder. The Tower design saves floor space and adds speed capability to production.
The Printing Unit is equipped with three dampening rollers, continuous dampening device, water cooled ink cylinders and Shell Plate Cylinders. The Shell Plate Cylinders, a TKS patent item, offer registration accuracy to the highest degree. Both ink form rollers and dampening form rollers are using oscillation. The oscillating ink form rollers delete ghosting while the oscillating dampening form rollers ensure removal of paper dust accumulation on the plate cylinders. Open fountain ink keys are independently operated with individual blades to achieve accurate control of ink supply.
The folder is a Jaw type folder which has a cutting cylinder, folding cylinder, jaw cylinder with 2:3:3 cylinder ratios. The folder is equipped with a chopper folding device, cross perforator and gluing device for capability to complete various types of folding products. This gives the capability of the folder to produce 8, 12, 16, 24 and 32 pages A3 products and 16, 24, 32, 48 and 64 pages on A4 products with changing straight and collect mode capabilities of the folder. Additional functions such as lap adjustment on the run, one motion changeover of straight and collect, former positioning preset according to the web width will achieve outstanding productivity and shorter time in preparation. Moreover speed adjustment function for chopper timing and softening device which prevents wrinkles and makes paper folding easier will produce high quality folding of the products.
|Shaftless Web Offset Press, Color Top 5000UD
TKS has developed the H-type shaftless web offset press, the Color Top 5000UD which features plate and blanket cylinders that are 4-page wide and 1-page around. The Color Top 5000UD, which is unit driven (couple drive option possible), is a 4-color tower press that can print four colors on both sides of the web.
This 4-page wide by 1-page around (4 X 1) web offset newspaper printing press came about when the newspaper industry in Europe, between 1998 and 1999, started announcing and drawing attention to the concept of a newspaper press with a single plate cylinder (1-page long plate)-- from previous 2-page long to 1-page long plates. Our development of the 4 X 1 press started in February of 2002, and till April of this year (2003), extensive checks and test printing were done on the performance of the one-around press. This press was then packed and shipped to Las Vegas and demonstrated at NEXPO 2003 actually printing at 70,000 everyday during the exhibit.
The specifications of the above Color Top 5000UD are:
* Web width (U.S.): 50"(1270mm)
* Cutoff: 21.5"(546mm)
Because the plate cylinder and blanket cylinder are one-around, it has become very compact with the frame height lessened by 1,350 and the width by 450mm as compared to the double-around H-type Color Top 7000CDH. Furthermore, for workability, the dimension of the arch at the first level has been kept in line with our double width Color Top 7000CDH. The total weight of the four-stacked printing tower has been reduced to 25 tons, and with the SDS (Super Drive System), which are being used in our shaftless presses, together with the two 45 KW ED (Eco Drive) motors, we were able to print at a maximum speed of 70,000 cph. This press has been able to meet the present-day demands for cost reduction and environmental considerations.
The plate lockup device features a tool-less system that has proven to be very popular with our newspaper customers. The blanket cylinder utilizes draw-in bars on both ends with a narrow gap.