The Fully Automatic High-Definition Corrugated Box Flexo Printing Machine is an integrated solution for high-quality printing, drying, coating, and die-cutting of corrugated sheets. It features a full vacuum transfer system for stable and accurate sheet feeding, ensuring consistent printing quality and high production efficiency. The carton printing machine integrates multiple converting functions into one production line, helping reduce labor requirements and improve overall productivity. It is suitable for high-speed corrugated box and packaging production.

Upper Vacuum, Pressure-Free Leading-Edge Feeding System：

• Multi-servo feeding system with a dual-air-chamber, pressure-free leading-edge feeding platform, providing high feeding accuracy and stable sheet transfer. It is suitable for non-creasing printing applications where precise feeding length is required.
• The pressure-free leading-edge feeding system uses an eccentric adjustment shaft to precisely control the angle and gap between the vacuum feeding air chamber and the main feed roller. This limits the sheet transfer space without directly pressing the corrugated board, helping protect its internal structure and maintain its load-bearing strength.
• The vacuum feeding chamber provides stable control of the corrugated sheet during feeding, preventing slipping or idle rotation of the feed roller caused by excessive vacuum suction. This improves feeding stability and overall transmission accuracy.
• The upper vacuum transfer and dust-removal system combines sheet conveying and dust removal in one unit. Its powerful suction effectively removes paper dust and debris from the sheet surface before printing, helping improve print quality and reduce unprinted areas.
• Compared with traditional models, the system requires only two suction fans, reducing energy consumption while maintaining strong suction performance. Its optimized structure provides more space underneath the machine, making maintenance and servicing easier.

Printing Unit：

• Independent dual-servo drive for each printing unit eliminates cumulative gear transmission errors and enables precise synchronization of printing and impression, delivering high-definition printing quality with a simple structure and easy maintenance.
• Vacuum suction roller sheet transfer ensures stable and reliable printing of thin and warped corrugated sheets.
• Plate cylinder registration adjustment system allows quick and convenient correction of plate mounting misalignment, ensuring accurate printing registration.
• Precision adjustment system enables accurate adjustment of the impression gap and ink transfer gap for consistent printing quality.
• Printing registration accuracy: ±0.15 mm.
• Closed-chamber dual doctor blade system with ceramic anilox roller and imported ink supply/return system significantly improves the quality of both single-color and multi-color halftone printing and overprinting.
• Dual diaphragm pump ink supply system ensures fast and stable ink supply and return.
• Each printing unit can be equipped with an infrared hot-air drying system to provide efficient drying after printing.

Drying Unit

• Servo motor-driven system for high-precision and stable sheet conveying.
• Infrared drying system for efficient drying.
• Infrared heating system with fast and stable temperature rise. The heating power of each section is approximately 36 kW.
• Constant temperature control with zoned heating, allowing heating power to be adjusted according to production requirements, helping reduce energy consumption.

Die-Cutting Unit

• Independent servo motor drive provides precise and stable die-cutting performance.
• All machine gaps are electrically adjusted, with adjustment values displayed on the touchscreen. The HMI allows automatic positioning for quick and accurate setup.
• Servo motor-driven phase control enables direct and precise phase adjustment.
• The printing, slotting, and die-cutting phases are centrally controlled and can be fine-tuned during machine operation.

Die-Cutting Cylinder (Lower Cylinder)

• Precision-manufactured from high-quality steel with a hard chrome-plated surface for durability.
• After static balancing, the cylinder undergoes dynamic balancing to ensure smooth and stable operation.
• Motorized axial adjustment with adjustment values displayed on the touchscreen. The adjustment range is ±10 mm, allowing convenient and accurate die registration.

Rubber Pad Cylinder (Upper Cylinder)

• Precision-manufactured from high-quality steel, with a ground and hard chrome-plated surface for durability and long service life.
• Dynamically balanced after static balancing to further improve running stability.
• Motorized gap adjustment between the rubber pad cylinder and die-cutting cylinder.
• Mechanical stretching and lateral adjustment of ±20 mm, equipped with an overload protection system.
• Equipped with imported polyurethane rubber pads, which are easy to replace and economical to use.
• Rubber pad resurfacing system allows the pads to be repaired up to twice, maximizing service life and reducing operating costs.
• Mechanical differential speed compensation system with a compensation range of ±2 mm, helping maintain accurate die-cutting performance.

Machine Specifications：