Key Technical Aspects:

Dimensions and Specifications : The KBA RA 74-4+LX operates with a maximum sheet size of 520 x 740 mm and a minimum sheet size of 297 x 320 mm, supporting a printing area of 510 x 740 mm. The machine achieves a maximum production speed of 16,000 sheets per hour and has an imprint count of 64 million impressions. It accommodates stock thickness ranging from 0.04 mm to 0.6 mm, ensuring compatibility with a wide range of substrates.

Paper Handling : The press features a non-stop feeder and delivery system, enabling continuous operation and minimizing downtime during job changes. Automatic size and pressure settings further streamline setup processes, enhancing efficiency and reducing waste.

Printing Unit : The RA 74-4+LX is equipped with four color units and a coater, featuring chromed cylinders for durability and precision. The VARIDAMP alcohol film dampening system ensures consistent ink-water balance, while the automatic roller and blanket washing device maintains optimal print quality. An IR dryer and WEKO AP 230 powder spray system are included for efficient drying and powder application, and the extended delivery system supports high-speed production.

Ink System : The machine utilizes a VARIDAMP alcohol film dampening system, which provides stable and controlled ink distribution for high-quality prints. The system is designed to minimize ink emulsification and ensure consistent color reproduction throughout the production run.

Plate Cylinder : The press features a PWHA semi-automatic plate changer, allowing for quick and efficient plate changes. The system supports automatic size and pressure adjustments, ensuring precise registration and reducing setup time between jobs.