Prakash Web Offset Pvt. Ltd Verified by 158+ customers Web Offset Printing Press – 4 High Tower-533mm

  • Faridabad
  • Posted on 4th March 2021

Machine Details

4 high tower is ideal for printing daily newspapers, periodicals, posters, books and circular printing with variety in colours and pagination and capable of printing 4 colour on either side of the web (4+4

Introduction and Standard Features

4 – HI Tower Standard Features

  • Screw-type swing-down ink fountain with overrides for ink fountain roller.
  • Dynamically-balanced hard chrome plated solid plate and blanket cylinders.
  • On the nose, slit or spring-type plate lock-up system.
  • Manual side register system for both plate cylinders, on the run.
  • Electro-mechanical web-break detector.
  • Safety guards.
  • Centralized oil pressure lubrication for drive gears.
  • Provision for printing 4 colours on both sides of one web, or 2 colours on both sides of two webs, or single colour
  • Heavy-duty timer belt drive for 4 stack units.
  • On the run manual adjustment for registration of 4 colours on each side of web.
  • Variable-speed motorized dampening

Dampening System

Cloth Dampening :-

Comprising one form roller, a chrome-plated oscillating drum, a transfer roller and a motor-driven fountain roller, which can be regulated independently of press speed for precise control, continuous-feed dampening system is reliable and easy to use. Provision has been made to connect to a dampener solution circulation system.

Brush Dampening (option) :-

As an option Prakash offers motorized register system, wherein, an operator can adjust registration laterally and circumferentially from a remote desk.

This system offers greater control over the press in comparison to manual system and less manpower requirement. With motorized system, press comes with enclosure doors.

Spray Dampening (option) :-

pray Dampening System is provided in place of Film or Brushiest
dampening system. It increase efficiency and print quality, reduced start-up-waste, and savings in water and ink. Short payback makes the spray dampening system a necessary accessory for news paper presses.
The system has patented valves allowing a higher spraying cycle
frequency, delivery of precise water volumes, and uniform dampening of the plate cylinder.

Registration System

Manual registration :-

It is the most basic and inexpensive method for registration control and comes as a standard accessory. Lateral and circumferential register control is given on machine itself with easy to use attributes.

Motorized registration system (option) :-

As an option Prakash offers motorized register system, wherein, an operator can adjust registration laterally and circumferentially from a remote desk.
This system offers greater control over the press in comparison to manual system and less manpower requirement. With motorized system, press comes with enclosure doors.

Auto registration system (option) :-

Prakash offers automatic registration control system with a proven technology. It is a close loop system equipped with intelligent camera that continuously monitors and controls any deviation in registration. It comes with an easy to use touch screen user interface. The major advantage of this system is that it leads to huge saving by reducing wastage considerably which takes place during start up of the press.

Inking System

The inking system consists of a swing-down ink fountain which allows easy cleaning. 24 keys/ lever across the width of the ink fountain roller control the ink feed. The ink override control mechanism on the ink fountain roller ensures quick distribution of the ink all along the surface of the roller during printing runs and also easy cleaning of the ink fountain.

The gear-driven roller train (Comprising of copper-plated vibrator rollers, ink transfer and ink form rubber roller, ink feed and ink film on the plate cylinder or plate. Lever-style ink fountain is supplied as an option in Prakash presses.

On / Off controls

Manual controls:-

Manual on/off control is given on the machine itself for regulating ink, water, and impression.

Pneumatic Controls (option):-

Prakash offers highly reliable pneumatic controls for its presses, whereby, an operator can actuate controls for ink, water, and impression from remote desk. This type of control gives operator greater control over the press and it also helps in reducing paper wastage.

Drive System

Shafted:-

In this system a single drive shaft goes from the folder to the length of the press, driving each printing unit. In this arrangement high capacity motors are installed on the folder, which powers the entire press

Shaftless (option):-

The shaftless drive option provides excellent control over web tension from reelstand to folder through electronically synchronized AC motors. Which brings optimum control of the web position at all times. Subsequent benefits in press running are:

  • Easy synchronization of printing units to a folder
  • Optimum access throughout the press
  • Faster, easier plate changer for regional editions
  • Reliable of AC motor drives

Integrated RollStand

where you can see and judge yourself Integrated roll stand offers state-of-the-art vibration free design, wherein tower load is uniformly distributed over roll stand for smooth running. Tension control is provided to reduce print waste; un-altered drive line height allows this machine to be installed in existing press line; Multi level platform makes the work easier

Integrated Roll stand has many advantages:-

  • Space saving of around 43%.
  • Better print registration because of less web travel.
  • Easier webbing up of press.

This technology is available in all our machines as an option.

 3 Ink Form Rollers

10 rollers ink train with 3 ink forme rollers of differing diameters and 3 oscillators is ideal for newspaper and semi commercial printing.

3 ink Forme rollers has many advantages:-

  • Maximizes print contrast and solid density.
  • Minimizes dot gain and ghosting.
  • Provides sharp dots and perfect dot reproduction.

This technology is available in all our 30,000 and above speed machines as an option.

Specifications:

Size - 533mm(20.98”)

Printing Speed - 16000-36000 CPH

Plate Width - 889mm (35”)

Plate Length(Unbent)(Slit Type) - 564mm

Plate Thickness - 0.30mm

Blanket Length (‘T’ Bar Type including bars) - 581mm

Blanket Length (Narrow-gap including bars) - 605mm

Blanket Thickness(including packing) - 1.65+0.45

Paper Width - 700-889mm

Reel Diameter (Max) - 1070mm(42”)

Printing Length (Max) ‘T’ Bar Type Blanket - 507mm

Printing Length (Max) Narrow gap Blanket - 515mm

Paper gsm(Uncoated) - 38-80gsm

Prakash  Industries – a pioneer in the world of printing for the last 20 years, proudly presents its latest laser machines for various applications. Since the day of its establishment, Prakash brand has been devoted to the research and development, innovation and production of high quality machines. So far, we have successfully installed our products in and out of India.

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