8 Color Central Drum

Paper：

 

 

 

Film：

 

 

 

Characteristics:

1.Central impression type printing machine with better color registration. Due to the big drum, the printed material is supported by the big drum, and greatly improving color registration, especially with extensible materials.

2.All colors printing station drived by the central drum, Less transmission errors because of less gear transmission, increase the registration precision.

3.Adopting high-quality motor, high-quality inverter, save the electricity, reduce the run fluctuation.

4.The machine is equipped with blower and heater; and the heater employed central temperature control system, automatic temperature controller, and separated heat source.

5.The use of individual drying oven and cold wind system can effectively prevent the ink adhesion after printing.

6.Roller adopts special steel processing, and through special treatment, greatly reduce the beating range.

7.Printing roller uses static balance and dynamic balance processing, hard anode oxidation treatment, small resistance, beating small, achieves finally perfect printing effect.

8.Accurate printing effect achieved by special gear transmission device.

9.The printing machine all can choose advance configurations to achieve the high quality, the high-definition effect.

 

 

Main parameter:

 

Feeding material part:

1.Single unwinder system, pneumatic loader for unwind system 

2.Automatic stop machine when break the material; When machine stop, keep tension and avoid the material loose or line deflection.

3.Air shaft 

4.EPC (edge position control): With manually/automatically/ central return function, can adjust the rewind move left and right .

5.Automatic tension control system with magnetic brake(10 KG)

6.Roller core diameter: 76mm

7.Discharge maximum diameter: 1000mm

 

Printing sections:1.printing consists of: central drum, plate roller, ceramic anilox roller, chamber doctor blade.2.plate roller circumference: 280-1000mm 3.print material: resin plate or rubber plate 4.Transmission: central drum with big gear drive the printing station. 5.Printing roller lifting system: Pneumatic cylinder control roll backward and forward , when the machine stop the printing cylinder will backward , when the machine running will forward by pneumatic cylinder automatic.

 

Rewinding Part：

1. pneumatic loader for unwind system

3.Air shaft

4.Roller core diameter: 76mm

5.Discharge maximum diameter: 1000mm

 

Drying system:

1.Use hot air drying, intelligent constant temp control.

2.All the hot air between the printing units is supplied by one heating units.

3.Drying units are installed after the printing units, and air volume can be adjusted by independent damper/panel

4. The printing unit power it is about 10KW

5. The drying system after the printing it is about 30kw

6. Top dry system consist 3 oven each oven 10kw ,adjust by independent  

 

 

Central drum:

1.The central drum adopt hollow with two layers structure, made from superior alloy

2.steel and precise dynamic balance treatment and surface electroplated treatment to make the frame surface without etching.

3.The central impressing drum adopts high precise imported double row roller

4.bearing for supporting, imported together with the central drum.

5.The central impressing drum has constant temperature system of 32℃. With water cooling system(optional)

6.The central drum is driven by a big gear

7.A high precision encoder is installed at the axial head of the central drum which speed of plate cylinder and anilox roller is synchronous with the central drum

 

Chamber doctor blade and ink pump:

1.Equipped with doctor chamber for fast change.

2.It is made from Aluminum alloy and closed type to reduce solvent volatilization

3.and keep the ink in good viscosity and clean.

4.The blade and chamber sealing block are easy to change and clean.

5.There is forward and reverse directions doctor inside the chamber. The reverse doctor is for sealing the chamber and the forward doctor is for scratching the ink.

7.The doctor blade is with even strength, easy to adjust.

8.ink supply adopt double diaphragm pump. Easy to suck the ink .

 

Frame and web running:

1.The frame is made of alloy cast iron with high strength and lower stress. It is

casted by resin sand process and treated by vibration aging.

2.Integral type guide roller structure.

3.Assembled modularization in design.

4.Frame thickness 100mm

5.Guide roller Φ100mm  (Surface anodic oxidation treatment)

 

 

Here is some detail picture below.Hope can make you know more about our machine

 

Details:

 

 

 

The main list of detailed configuration Remark：the main motor and key parts can change which brand as your request.

1.Main motor：1pc（Taibang brand) 2.Ink operation motor: 1pc ( wanxin brand) 3.Inverter of main motor：1set (Delta brand) 4.Electrical parts：（Schneider） 5.bearing：NSK 6.Ceramicaniloxroller:1pc/color（ Murata） 7.Auto tension withMagnetic power:(HAITAI) 8.Air shaft: 1set（China） 9.EPC system:(China) 10.Contactor:（Schneider） 11.Button Switch:（Schneider） 12.Breaker：（Schneider） 13.Counter: (CHNT) 14.Hint light:（Schneider） 15.EPC system:1set (China) 16.Revolve Button Switch:（Schneider） 17.Urgent Stop Switch:（Schneider） 18.Relay:（Schneider）