Stack Label Printer Film Printing Press and Paper Flexo Printing Machine for Packaging Application Printing Machinery

Product Description

Model	OS650-5B	OS950-5B
Printing Speed	5-60m/min	5-60m/min
Printing Color	5 Colours	5 Colours
Max.Web Width	660mm	960mm
Max.Printing Width	650mm	950mm
Max.Unwinding Diameter	1400mm	1400mm
Max.Rewinding Diameter	1400mm	1400mm
Printing Girth	250-580mm	250-580mm
Precision Of Chromatography	±0.10mm	±0.10mm
Dimensions (K*W*H)	4000*1700*2700mm	4000*1700*2700mm
Machine Weight	6000kg	6000kg

Founded on July 3, 2010,OSUN Printing & Packaging Machinery Co., Ltd.

 

Has rapidly become one of China's leading manufacturers of advanced printing and packaging equipment.

 

Specializing in the development of cutting-edge technologies, we offer a diverse range of products including Inline, Stack, and CI Flexographic printing machines designed for label and packaging printing, Digital Finishing Machines for label die cutting and quality inspection, and Converting Machines for slitting and pouch production.

 

Q1: What is a flexographic printing machine?
A: A flexographic printing machine uses flexible relief plates to print on a variety of substrates such as paper, plastic film, and metal foil. It is widely used in packaging, labels, and newspapers.

Q2: How does flexographic printing differ from other printing methods (e.g., offset, gravure)?
A: Flexographic printing is faster, more cost-effective, and more versatile in terms of materials. Compared to gravure, it has lower plate-making costs. Compared to offset, it can print on a wider range of substrates.

Q3: What are the main components of a flexographic printing machine?
A: Key components include the unwinding system, printing cylinders, anilox roller, doctor blade system, ink delivery system, drying units, rewinding system, and electronic control system.

Q4: What is an anilox roller and what is its function?
A: The anilox roller transfers a consistent amount of ink to the printing plate. Its cell count, angle, and volume directly affect ink density and print quality.

Q5: What types of ink are used in flexographic printing?
A: Mainly water-based and UV inks. These are more environmentally friendly than solvent-based inks and offer fast drying times, especially suitable for food packaging.

Q6: How is registration accuracy maintained in flexographic printing?
A: Through servo motors, tension control systems, and automatic registration control technology that ensure precise alignment between color stations.

Q7: How to deal with ink spots or smudges during printing?
A: Check the cleanliness of the anilox roller, inspect the plate for damage, and ensure the ink is free of impurities or bubbles. Replace filters if necessary.

Q8: What routine maintenance does a flexo press require?
A: Regular cleaning of the ink system, inspection and replacement of worn doctor blades, lubrication of moving parts, tension system calibration, and scheduled part replacements.

Q9: What materials are suitable for flexographic printing?
A: Plastic films (e.g., PE, BOPP), paper, aluminum foil, self-adhesive materials, paper bags, paper cups, and corrugated board.

Q10: What kinds of products are typically printed using flexo?
A: Food packaging bags, beverage labels, hygiene product packaging, tissue wrap, courier bags, wrapping paper, and more.

Q11: What factors should be considered when choosing a flexo press?
A: Consider printing width, number of color units, printing speed, level of automation, online inspection capabilities, and after-sales support.

Q12: Is flexographic plate-making expensive?
A: Flexo plate-making is cheaper than gravure but slightly more expensive than offset. However, modern digital plate-making improves efficiency and reduces long-term costs.