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Web Offset Printing Machines

« Technology in Print »
Speed Available 16000 and 30000 CPH

We, Sahil Graphics, based at Faridabad, India an established Suppliers & Exporters of superior quality newspaper printing machines including Web offset printing machines from the heart of India. Our Product range consists web Offset Printing Machines, Newspaper Printing Machines, Coldset Web Offset Presses, Reel Offset Press, Three Colour Satellite, Mono Unit, Satck Unit, Blanket To Blanket Printing Unit, Four Hi Tower, Rotary Offset, Reel Stand, Reel Rewinder, Half Page, 1/4 Page Folder, 1/8 Page Folder, Newspaper Printing Presses etc.

The success of a web offset press is mainly determined by the ease and efficiency with which it achieves production target. The usage of these machines result in lot of labour saving because you can get folded papers for the newspaper/book after printing on both sides of the web simultaneously. Technoprint web machines are backed by unmatched expertise in machine building technology ensuring years of trouble-free and reliable services.

Technoprint web offset presses are designed on the similar pattern of GOSS community web offset machine. Technoprint range of web offset printing machines offers modular construction, simple up-gradation in current pressline and easy to operate & maintain. Technoprint web offset newspaper printing machines are ideal for printing single colour & multi colour Newspapers, Books, Magazines & Supplements etc. It takes care of multi colour printing with a wide range of modules that occupy very little space. It offers a combination of different print modules to meet a variety of needs. All in all, it offers sharp graphics quality and reduces wastage.

Web offset printing differs from sheet-fed offset printing, in which individual pages of paper are fed into the offset machine. Sheet-fed offset printing is popular for small and medium-sized fixed jobs such as limited-edition books

he Techno print Web Offset printing machine is specifically designed for printing small and medium circulation daily newspapers, as well as periodicals, books, magazines, and commercial printing. High speed and solid construction newspaper printing machine, along with simplicity of operation give Techno pint web offset printing presses a maximum hourly production from 16000 CPH to 30,000 CPH

Newspaper Printing Machines are basically web offset presses constructed using high grade steel and cast iron. These web offset printing machines are also used to print magazines, books, newspapers etc. These web offset machines are used for high speed and superior quality multicolor offset printing. Web Offset printing machines are suitable for medium to high volume printing. Web Offset Machines are a type of Rotary offset machines, providing high quality paper printing and capable of producing large volumes in a shorter time. These web machines are faster and have a higher output rate as compared to sheet fed offset printing machines.

These web offset printing machines process paper rolls and can print both one side as well both sides of newspaper. These web offset printing machines are specifically designed to allow quick changeover in sheet size.



Cold-Set & Heat-Set Web Offset Machines

Web offset printing machine is a form of offset printing in which a continuous roll of paper is fed through the printing press. Pages are separated and cut to size after they have been printed on web offset machine. Web offset printing is used for high-volume publications such as mass-market production of books, magazines, Supplements & newspapers. There are two methods of web offset printing, known as heat set and coldset (or non-heatset).

Cold set Web offset printing (also known as non-heatset) is a web offset printing process in which ink is allowed to dry naturally through evaporation and absorption. In the alternative method, heatset Web offset printing, ink is dried rapidly by forced-air heating. Web offset printing is a printing process in which a continuous roll of paper is fed through a offset printing press.

Cold-set Web offset printing presses are available from 20 inch to 22.75 inch wide range cut off sizes. This of course varies as large newspaper presses today are also mostly "cold-set." These web offset printing machines have been used mainly by the Newspaper printer to print newspapers & supplements, Book Publishers to print magazines, School Books etc.


Web offset press today is now printing higher volume production such as multicolour newspapers, Supplements, Books, etc. The market of newspaper printing machines are on an increase. The coldset web offset press manufactures today are even gearing their webs to compete against heatset web offset and sheet fed offset printing machines. Their motto; "Why print 5,000 impressions per hour when you can print upto 30,000?" It is because of this shift that the smaller press is being equipped with press consoles, IR or UV driers, better registration systems, etc.

 

Infeed :Paper is delivered to the web offset printing press by the infeed section. The infeed section typically contains a roll stand to hold the paper rolls; a splicer which automatically splices the end of one web to the beginning of another, a web-steering device which controls the side register (side-to-side position) of the infeeding web; and a tension controller that maintains the proper tension on the web as it enters the web offset printing press.

Printing Units :Web offset printing machines are made up of several printing units usually numbering from 3 up to or more than 6. Like sheet fed offset machine, each printing unit contains an inking system, a dampening system, a plate cylinder, a blanket cylinder, and an impression cylinder.

Delivery :The delivery section of web offset printing machine can consist of a variety of devices, from a simple sheeter, which cuts the moving web into sheets of the required size, to a combination sheeter and folder, which can both fold the web into final signatures (group of pages). These folders are available in half page folder, ¼ page folder, 1/8 page folder & double parallel folder.

 

Advantages :
  • Operator Friendly
  • Easy Maintenance
  • Inherently Flexible
  • Flawless Performance
  • Consistent Print Quality
  • Proficient & Timely after sales services
  • Modular Construction for quicker changeover & makeover

Product Range :
  • 4-Hi Tower Printing Unit
  • Multicolor Satellite Printing Unit
  • Mono Unit
  • Stack Unit
  • Half Page Folders
  • ¼ Page Folders
  • 1/8 Page Folders
(Available in two speeds: 16000 & 30000 cph)



Mono unit is Blanket to Blanket Web Offset Printing Machines capable of Printing Single Colour on both sides of the paper web in single pass. It has an integral reel stand, saving space and ensuring minimum web lead. It is also available in separate stacked unit. The stack can be mounted on three colour satellite, mono unit or itself to make it 2-Hi, 3-Hi or 4-Hi machines for multi colour printing on both sides.

Mono Unit
Mono Unit
Advantages:
  • Blanket and Plate cylinders are hard chrome plated, balanced and mounted on dust proof "TIMKEN" taper roller bearings for best printing performance.
  • Centralized lubrication, all drive gears in oil bath.
  • All gears are hardened grounded ensuring high quality printing and longer life.
  • Side frames are made of high grade stress relieved cast iron for vibration free performance at high speed.
  • In the plate cylinder, slit or spring type plate lock-up system.
  • Variable speed moterised dampening.
  • Safety Guards.

Optional Accessories :
  • Brushmist Dampening system.
  • Running circumferential register for loading side plate cylinder.
  • Pneumatic control system.
  • Plate bending fixture & Plate punch.



  • The three color satellite unit comprises three printing couples surrounding a common impresion cylinder which facilitates 3 color printing on one side of web.
  • To print high quality four colors on one side web and one color on the other side can be printed when stack blanket to blanket printing unit is mounted on 3 color satellite unit.

Three Colour Satellite
Three Colour Satellite

Advantages:
  • Dynamically balanced hard chrome plated Plate & Blanket cylinders.
  • RCR on two plate cylinder.
  • Variable sped motorized dampening.
  • Swing down lever style Ink fountain .
  • Precision Hard & ground gears to maintain smooth spread and accuracy.
  • Manual side Register for all plate cylinder on the run.
  • Automatic Centralized lubrication for drive gears.
  • Safety guards.

Optional Accessories :
  • Brushmist Dampening system.
  • Pneumatic control system.
  • Solid Stainless steel plate and blanket cylenders.
  • Plate bending device & Plate punch.



The 4 Hi can print maximum 4 x 4 colours on the both sides of one web or 2 x 2 Colours on both sides of two webs.


Four Hi Tower
Four Hi Tower

Advantages:
  • Dynamically balanced hard chrome plated Plate & Blanket cylinders.
  • Running circumferential register (RCRs)
  • Centralized lubrication for drive gears.
  • Variable speed motorized dampening
  • Swing-down type Ink fountain
  • On-the-run adjustment of plate cylinder circumferential register with calibrated movement of ± 3 mm and side lay register with ±5 mm.
  • Full Platform with safety railing and stairways on 4-Hi arrangements.
  • On the nose slit on spring type plate Lock-up system.
  • Heavy-duty timer belt drive for 4 stack units.
  • Safety guards

Optional Accessories :
  • Brushmist Dampening system.
  • Pneumatic control system.
  • Plate bending fixture & Plate punch.




Half Page Folder
Half Page Folder

Technical Specifications :
  • Both 2 & 3 cylinder type folders are available for different speed ranges from 16000 to 30000 copies per hour.
  • All folders are designed for quick changeover from half to 1/4 fold, 1/8 fold or double parallel fold.
  • Centralized lubrication for drive gears.
  • Slitter knife on RTF Roller
  • Mechanical/ Electrical good copy counter.

Quarter Folder :
  • The 1/4 Folder contains a Choper and two folding rollers which fold the half folded sheet once more, perpendicularly to the previous fold seam. The unit can disengaged when 1/2 page fold delivery is required.

One Eight Folder :
  • The 1/8 Folder is similar to the 1/4 folder. It folds 1/4 sheet once more, perpendicularly to the quarter fold seam.

1-4 folder 1-8 folder

Folding Options :
fold1fold2fold3
fold4fold5
C - Cylinder Circumference
W - Web Width

Folding Options :
  • Both 2 & 3 cylinder type folders are available for different speed ranges from 16000 to 30000 copies per hour.
  • All folders are designed for quick changeover from half to 1/4 fold, 1/8 fold or double parallel fold.
  • Centralized lubrication for drive gears.
  • Slitter knife on RTF Roller
  • Mechanical/ Electrical good copy counter.

Particulars 508 mm
cut
off
533 mm
cut
off
546 mm
cut
off
560 mm
cut
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578 mm
cut
off
Folder Speed 16000 CPH
30000 CPH
16000 CPH
30000 CPH
16000 CPH
30000 CPH
16000 CPH
30000 CPH
16000 CPH
30000 CPH
Cut Off Sizes 508
mm
20" 533
mm
21" 546
mm
21.5" 560
mm
22" 578
mm
22. 75"
Plate & Blanket Width 889
mm
35" 889
mm
35" 889
mm
35" 889
mm
35" 889
mm
35"
Plate Length Unbent Gripper 516
mm
20.3" 541
mm
21.2" 554
mm
21.8" 568
mm
22.3" 586
mm
23.07"
Slit 539
mm
21.2" 563
mm
22.2" 577
mm
22.7" 591 mm 23.2" 609 mm 23. 9"
Plate Thickness 0.30
mm
0.011" 0.30
mm
0.011" 0.30
mm
0.011" 0.30 mm 0.011" 0.30 mm 0.011"
Blanket Length with bars 556
mm
21.8" 581
mm
22.8" 594
mm
23.3" 608
mm
23.9" 626
mm
24.6"
Blanket thickness 1.65 mm 0.065" 1.65
mm
0.065" 1.65
mm
0.065" 1.65
mm
0.065" 1.65
mm
0.065"
Reel Width 737
-889
29"-35" 737
-889
29"-35" 737
-889
29"-35" 737-889 29"-35" 737-889 29"-35"
Reel Diameter 1070
mm
42" 1070
mm
42" 1070
mm
42" 1070
mm
42" 1070
mm
42"
Printing Length 482
mm
18.9" 507
mm
19.9" 520
mm
20.4" 534
mm
21" 552
mm
21.7"
Blanket Thickness With packing 2.1
mm
0.082" 2.1
mm
0.082" 2.1
mm
0.082" 2.1
mm
0.082" 2.1
mm
0.082"
W/o packing 1.65
mm
0.065" 1.65
mm
1.65
0.065" 1.65
mm
0.065" 1.65
mm
0.065" 0.065"

» Paper thickness range : 38-60gsm.
» Due to our policy of continuous improvement / modifications, we reserve the right to alter any details of technicals specifications without prior notice.
Note : Operating speed for optimum production will vary with number of webs, paper quality and workmanship.

Product Range
» Non Woven Bag Printing Machine » Mini Offset Printing Machines » Poly Offset Printing Machines » Sheetfed Offset Printing Machines
» Web Offset Printing Machines » Prepress / Postpress Equipment » Other Machines  
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