12 colors intermittent rotary offset label printing machine

Specifications

12 colors intermittent rotary offset label printing machine
Come with flexo coating, cold stamping, flexo vanishing& die-cuting

Standard Functions:

The machine consists of unwinding and rewinding with pneumatic shaft, printing units, CCD camera, touch screen, second pass, web-guide, manual ink adjustment, Yaskawa or Panasonic servo motor, automatic oil supply, automatic plate mounting and adjustment- using 0.15 mm plate.

Key Points:

The big advantages of the machine are that: 1) it can cater to a wide range of material, film- 0.05 mm and above, paper 60-350 gsm. 2) It can save paper at start stage, plate change –paper waste within 50 meters, at interval stop-almost no loss of color. Our report from the client showed that to save 50 USD a shift is a small case compared with the other’s Chinese machine of same type. 3) The dampening system only uses 3-5% alcohol which has less smell and also cost saving.

Main Specifications:

Items	Specifications	Unit
Web Width	350	mm
Max. printing Area	340*345	mm
Diameter of unwinding web	600	mm
Diameter of rewinding web	600	mm
Thickness of printing material	Paper: 60-350  Film: 50-600	g/m2 Micro-millimeter.
Printing Length	170-350	mm
Printing speed	30-180(Subject to the length and quality of the printing material, Max 70 m/min)	times/min
Power	30.4 for 6 color ( 3.6/color)	KW (three phase 380V) 50/60HZ
UV	4.8/color	KW(three phase 380V)
Overall dimensions	10000*1900*1600(L*W*H)for 6 color	mm
Machine weight	13000 for 6 color	kg

Note: The specification listed is only for a reference as the specification is different according to different requirement of the customer.

Main Features of the Machine

  WJPS350 Shaftless Offset (Alcohol Dampening) Intermittent Rotary Label Printing Machine is a perfect combination of Japanese Hamada technology and intermittent rotary, vacuum conveying system of our company. Through close cooperation with Japanese engineer, our machine has been able to be the leading level, in domestic or even in the world, on water, ink pressure balancing so that to make the machine stable in color printing as well as endurance. Compared with other producer in China our machine are more stable in paper conveying due to special designed unwinding and rewinding system; less wastage for first start-generally 20-30 meters depends on the skill of the operator but no longer than 40 meters, easy for operation- training time generally 5 working days; and with wider range for material production-0.05 to 0.55mm in thickness..

Electric Control System: The main control unit adopts imported electric components,  together with CPU via DOS system to control the servo motors, which ensures the machine, high responding, accurate towing, easy operating and safe running.

Shaftless Driving: The six color machine uses 14 big capacity servomotors to guarantee high speed and accurate running and not trouble in printing roller change.

 

Pic 1 Shaftless System

Registration System: Once printing length is input at the main control unit, every unit will move automatically to the preset position. Each unit is controlled individually by a motor for lateral and longitudinal registration. With the direct of CCD image, the remote registration is enabled without stopping machine production (Remote control system is an option for this machine and need to be charged if it is asked by the client).

Pic 2 Touch Screen

Pic 3 CCD and Auto-ink Control Monitor

Unwinding and Rewinding Parts: The unwinding and rewinding parts adopts pneumatic shaft with gravity roller to allow varies material- paper and film to go smoothly as well as helping the tension control of the machine.  On unwinding parts there is web-guide and paper lacking detector. On rewinding part, film lamination and waste off device can be equipped.

Pic 4 Pneumatic Shaft Loading	Pic 5 Paper Lacking Detector
Pic 6 Web-guide	Pic 7 Waste-off and Rewinder

Printing Unit: it uses advanced US ink supplying system to ensure the shinning of the print. China's first low-speed differential water supply system, effectively ensuring the high, low speed of the ink-water balance and color stability; water bridge ink roller by a version in the first ink roller to achieve the unity of the classic structure of the ink to reach the pre-equilibrium, significantly reduce paper waste; pioneered use of floating roller, effectively prevents the ink bars and ghost. The ink line is made up of 18 ink rollers and 5dampening rollers (Alcohol System). Both film and paper can be printed in this machine.

Pic 8 Heavy Duty Printing Unit

Pic 9 Layout of the Rollers

UV Unit: The UV Unit adopts UV light to ensure a fast dry and shining printing result.

 

Pic 10 UV Unit

Lubricating System: Automatically cycling oil-supply system together with self-lubricate bearings ensures the accuracy and service life of the machine.

Pic 11 Central Oil Supply

Pic 12 Self Lubricated Bearing

The computer controlled automatic and manual plate mounting and dismounting system shortened the plate changing time and increases the safety level of the machine. ( Plate changing for 6 color only needs 6 minutes)

The Japanese origin SMC Pneumatic clutch pressure control system ensures smooth and accurate running of the machine; two way clutch, makes the PS plate and the water blanket fully pre-inked and then be pressed which greatly reduces the pre-print paper wastage.

7 o'clock arrangement in the host rollers successfully avoids the impact of the printing drum to the prints.

Plate and print pressure adopts world most advanced Japan Fujikoshi double four-row tapered three-points suspension bearing and two-way clutch which makes the PS plate and the transfer blanket pre-inked fully to reduce the printing wastage.

 

Pic 13 Suspension Bearing

Pressing roller uses preload, four -line Japanese original P5 level printer-specific tapered roller bearings with radial clearance and beat almost to zero, to ensure stable printing pressure, outlets clearance.

The machine adopts thermostatic alcohol dampening units to ensure the brightness of the print.

Heidelberg ink fountain partition structure, easier to adjust the ink, reducing printing time and paper waste

Pic 14 Partition Ink Tank

The machine is equipped with touch screen operation panel at each unit to ensure the operation of the machine at either printing unit13582543138

Pic 15 Unit Touch Screen

This machine can also be equipped with automatic registration system, automatic ink volume control system, corona, flexo coating or varnishing  unit, cold foil stamping, oscillating roller cooling system and rotary die-cutter unit to enable multifunction of the machine and to improve marketing competitiveness.

Pic 16 Auto Ink Controller	Pic 17 Die-cutting Unit
Pic 18 Flexo Unit	Pic 19 Cold Foil Unit
Pic 20 Corona

Vacuum Unwinding Device(patented, This is optional. The suction pulling device prevents scratch and napping caused by the friction

Main Configuration

Name	Brand	Origin
Shaftless Control System CPU	NULL	US
DOS Control System	US	China University
CCD Camera	SICHANGO/BST	Sino-Japan Venture/GERMAN
Servo Motor (Main Motor 4.4 KW)	YASUKAWA	Japan
Reducer	SHIMPO	Japan
Touch Screen	WEINVIEW	Taiwan
Servomotor for Station Driving	PANASONIC	Japan
Reducer for Station Driving	SHIMPO	Japan
Differential motor for water roll	NISSEI	Japan
Lateral Registration Motor	HENGHE	Joint-venture
Linear guide and slider	HIVIN	Taiwan
Unwinding and Rewinding Frequency Converter	HUICHUANG	China
Power Source	OMRON	Japan
Contactor	SCHNEIDER	France
Air Switch	LG	Korea
Relay	OMRON	Japan
Button	SCHNERDER	France
Photo Electric Switch	OMRON	Japan
Diffuse Switch	OMRON	Japan
Approach Switch	FOTEK	Taiwan
Clutch Cylinder and Electric magnetic Valve	SMC	Japan
Oil Pump	ISHAN	Taiwan
UV	UV Light	Taiwan
UV lamp	PM ( Primarc)	U.K
Bearing P 5 Type	NSK/IKO	Japan
Rubber roller	BASCH	Japan
Gear	Grinded by Alloy Material	China
Computerized PS Plate Punching Machine	GuanHua	China
Auto Alcohol Controlling System		China
Vacuum Pump	Orion	Japan