Multi Colour Rotogravure Machine

Infeed / Ooutfeed Pulling Unit : NIP units having pneumatically activated pressured rolled, load cells feed back with digital tension display. It shall be provided after the unwinder and before the rewinder to isolate web tension between the printing units. The nip units Synchronized with main drive.
2. CYLINDER MOUNTING ASSEMBLY : This assembly shall mount printing shaft complete with check nuts & gears. It should have mechanical provision to manually side lay the register on the operator side by +/- 10mm correction.
3. INKING ASSEMBLE : Consists of an full width s.s. Tray adjustable in height by means of a hand - wheel to cover the full range of printing cylinder circumstances with two outlets at the bottom with 50 mm diameter socket pipe threads to facility ink re-circulation connections. The tray should have provision to slide out on horizontal guide for easy removal and cleaning operation. The tray to have capacity of about 30 liters.
4. DOCTOR BLADE ASSEMBLE : It shall be consist of one full width doctor blade holder complete with aluminum doctor blade and pneumatically applied sipping pressure. The blade should be adjustable mechanically at different wiping angle and arrangement to adjust blade parallelism to the printing cylinder. Arrangement for uniform reciprocating movement of the doctor blade assembles to be provided.
5. IMPRESSION ROLLER ASSEMBLE : Consisting of one full width rubber roller of appropriate diameter and 50-60 shore "D" hardness, made of appropriate quality rubber, resistant to ink solvents like toluene, ketone, methanol etc. Pressure is to be controlled pneumatically and arrangement for easy removal for quick changeover. Pressure gauge and regulator to be provided FESTO make pneumatic circuit is preferable.
6. REGISTRATION CONTROL ASSEMBLE : Shall consist of manually / motorized controlled lateral registration and longitudinal movement.
7. DRYING ASSEMBLE : Consisting of double side drying hoods or single side dryer each having appropriate size and nozzle quantity. . The hood Shall be easily operable for web threading and cleaning of the idler rollers. The connections of the blower of the drying unit shall be e through manually operated dampers to facilitate the control of in coming and out going air. The design and the direction of the air nozzle should be such that the air draft is not directed towards the printing cylinder resulting in the drying of the ink on the engraved cylinder surface.
8. MAIN DRIVE ASSEMBLE : Shall consist of one common AC motor of appropriate capacity for all the units. The individual unit shall be driven through specially designed oil immersed main drive gear box connected to the main drive through a common shaft.
9. REWINDING ROLL UNIT : The rewind unit shall have one mechanical shaft complete with core holders, check nuts and gears. The shaft fixing arrangement should facilitate quick fixing and removal of the shaft. The roll shall be using 76mm ID paper cores of 12-15 mm wall thickness.

Webguiding Unit : Unwind reel is automatically guided in one position. It shall be designed for accuracy of +/-.5 mm. Web guiding facility to be controlled by means pneumatic Hydraulic system.or electronic.

1. UNWIND ROLL UNIT :  The unwind unit with mechanical shaft /air shaft
with core holders, check units & gears
auto tension control system
with load cell and digital tension display
Roll Weight : The max. weight of the substrate roll shall be 300 kg. for unwind & rewind