Current Stock List
John:   +44 (0) 7831 499 228
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Tel:      + 44 (0) 113 393 1999

Fax:     + 44 (0) 113 393 1919
Email    sales @sgm.co.uk

SPECIALISED GRAPHIC MACHINERY
Unit 23 Chelwood Drive
Roundhay
Leeds, LS8 2AT
ENGLAND

TEL: + 44 (0)113 393 1999
FAX: + 44 (0)113 393 1919


ROTATEK BRAVA 450

DEMONSTRATION MACHINE

IN PERFECT STATE

IN PRODUCTION

IMMEDIATE AVAILABILITY DECEMBER 2018

 

ALL TYPE OF PRINTING TESTS CAN BE PERFORMED

 

 

1. TYPE OF MACHINE: ROTATEK BRAVA 450

Latest Unique Worldwide Innovation, Patented Semi-rotary and Full rotary machine, combining Wet offset, Flexo printing, Hot Foil Stamping, Die-cutting and Embossing with full servo driven motors for high quality label and folding carton printing.

               

2. TECHNICAL SPECIFICATIONS

 

Production speed in semi-rotary mode:                                                             65 m/min*

Maximum web width:                                                                                 450 mm

Minimum web width:                                                                                  150 mm.

Maximum printing width:                                                                          420 mm

Transmission and register:                                                                        Shaftless

Printing size in semi-rotary mode:                                                         From 200 to 400 mm.

Die cutting size in semi-rotary mode:                                                   From 200 to 400 mm.

Plate thickness:                                                                                              0.15 mm.

Blanket thickness:                                                                                         1.05 mm.

Polymer thickness:                                                                                       1.14 mm.

Adhesive thickness:                                                                                     0.56 mm.

Maximum diameter of mill roll:                                                              1.000 mm. 

Core diameter  :                                                                                             70 mm., 3”, 6”.

Recommended support:                                                                            Paper/self adhesive/compound 

*Depending on the design and format

 

 

 

2.1               BASIC CONFIGURATION

 

£ Innovative Register Control System: All Brava Units have motorised cross   register/longitudinal control from Main Panel touch screen desk and on every unit. 

£ Main Power Supply 400 V. 50 Hz. 3 phases + N +TT.

 

£   Pre-selection counter speed indicator.

 

£   Extra set of rubber rollers for one offset unit.

 

£   Shaftless transmission.

 

£   Electrical equipment.

 

£   Operator panel with touch screen.

 

£   Spare parts contingent and tools.

 

£   Central greasing.

 

£  Auto positioning of semi-rotary units when changing sizes.

 

£  Machine equipped with Security Norms.

 

£ Thermic Protection for ups/downs of the electrical equipment.

  

 

2.2                 UNWINDING UNIT

 

Hydraulic roll lift.

One expandable air shaft 76 mm.

Maximum diameters of paper roll 1.000 mm.

Side displacement of the roll during operation of the machine +/- 7,5 mm.

Pneumatic brake through dancer roller.

End of roll by acoustic alarm and stop.

Web splice device.

Web guide device.

Dust exhauster/cleaner with antistatic bar, Rotatek.

Corona treatment, two sides.

 

2.3               SEMI-ROTARY WET OFFSET PRINTING UNITS

 

5 Semi-rotary offset printing units equipped with:

Shaftless transmission.

Individual main control panel.

Rotamoll dampening system for U.V. inks.

Third form roller.

Dampening system proportional to speed of machine.

Horizontal webbing.

Pneumatic ductor roller with electronic control.

Pneumatical declutch of ink train.

Pneumatic wash-up system.

Motorized cross register of plate +/- 6 mm.

Automatic longitudinal pre-register.

Refrigerated inking rollers

Ink agitator.

Chill roller.

 

2.4               SEMI-ROTARY –ROTARY WET OFFSET PRINTING FORMAT

5 Semi-rotary wet offset cassettes, diagonal register and pressure regulator, motorised plate side register. For printing from 200 to 400 mm.

5 rotary wet offset cassettes, diagonal register and pressure regulator, motorised plate side register. For printing from 200 to 400 mm.

 

2.5               SEMI-ROTARY FLEXOGRAPHIC UNIT

 

3 Semi-rotary flexographic printing unit equipped with:

Shaft less transmission.

Individual main control panel.

Longitudinal and side register motorizad from main panel.

Pneumatic fixing of printing cylinders anmd anilox cylinders.

Automatic longitudinal pre-register.

Open blade assembly.

Peristaltic pump for chambered doctor blade assembly.

Chill roller.

3 Anilox cylinders format to be defined.

3 Semi-rotary printing cylinders format 24”.

 

2.6               COLD STAMPING UNIT

1 Cold stamping unit equipped with:

Unwind.

Motorised roller.

Pressure roller.

Rewinder.

 

DIE CUTTING UNIT

 

1 Unidad de troquelado para dos cilindros extraíbles equipada con:

q  Rodillo de apoyo.

q  Against cylinder with depth adjustment.

q  Lateral registration

q  Controller de presión hidráulicos.

q  Un cilinder magnétic.

q  Control de register unit.

q  Desmallador.

 

 

2.7               PROCESSING UNIT

   1 Pulling/motor cutting module equipped with:

1 Position for rotary die cutting, empty.

1 Position for length slitting , empty.

1 Position for side trimming scissor type equipped with 2 knives and exhauster.

 

2.8               DELIVERIES

1 Rewinder unit equipped with:

Maximum diameter 1.000 mm.

1 shaft with one wheel-holder for double width production.

Antistatic bars.

 

2.11.          OTHER ELEMENTS

Modem connection.

Independent control desk.

1 Offset cassette truck 1 position.

2 Automatic video scanner. 

1 Refrigerator system with alcohol dossificator for dampening system and refrigerated inking rollers.

Plate bender with cameras for CTP.

Transformer for machine.

Photocells for transparent material.

1 set of turn bars.

Refrigerator for chilled rollers.

Reprocessing unit. For the second print register.

 

4.1.             AUTOMATIC REGISTER CONTROL

 

£ Register control: Register control top. The system controls the length and side register for offset units (visible inks) from the top an installed number of cameras after the absolute measurement printing unit, reading a mark pattern engraved on the plates, through circular marks of 1 mm diameter.

4.2.             AUTOMATIC REGISTER CONTROL

 

£ Register control: Register control top. The system controls the length and side register for flexo units (visible inks) from the top an installed number of cameras after the absolute measurement printing unit, reading a mark pattern engraved on the plates, through circular marks of 1 mm diameter.

 

  

2.12.          DRYERS

U.V. drying system equipped with total 8 lamps.

U.V Transformer.