1. First, determine the core parameters: number of colors and number of workstations.
Choose a model with the corresponding number of colors based on your maximum usual printing color registration. Common options include 6, 8, 10, 12, and 16 colors. Allowing 1-2 extra color registrations provides more flexibility for complex orders.
Automatic printing machines typically have about 6 more workstations than the number of colors, facilitating sheet placement and retrieval for workers. It's essential to reserve a flash curing workstation. For multi-color, thick paste printing, additional workstations are needed. For single-person operation, a specially designed single-workstation configuration can be chosen to reduce space waste.
2. Consider the compatibility of the transmission system.
Common transmission systems fall into three categories, which can be selected based on budget:
Pneumatic transmission: Lower price, adjustable doctor blade and ink return blade pressure, suitable for the budget needs of small and medium-sized factories;
Servo mechanical transmission: Higher positioning accuracy and more stable operation, higher price, suitable for high-end orders and scenarios requiring high color registration accuracy;
Some models support multiple transmission combinations, balancing cost and accuracy.
3. Frame Compatibility is Crucial: Prioritize models that support freely switchable frame sizes. If your factory already uses a large number of frames, ensure the equipment is compatible with existing frame sizes to avoid unnecessary waste from frame modifications. Good models are equipped with pneumatic frame clamping and a positioning pin-type registration system, significantly speeding up plate changeovers.
4. Confirm Actual Production Speed: The equipment's advertised speed is the maximum cycle time. Actual output is affected by the number of flash drying processes, printing area, and ink type. For small-batch, multi-variety orders, high speeds are unnecessary; for large-volume orders, prioritize models with a stable output of 600 pieces or more per hour.
5. Control System Usability: Prioritize models with independent control for each printhead (for easy fine-tuning of high-end products), support for storing and recalling parameters (for quick startup on recurring orders), and remote diagnostic capabilities (allowing manufacturers to remotely troubleshoot and reduce downtime). Touchscreen operation is more intuitive and convenient than analog panels, making it easier for beginners to use.
6. Structural and Durability Reference: High-end models utilize a pure sheet metal frame with a unique spot welding process, resulting in low welding stress, reduced deformation, and a service life exceeding 20 years. Traditional square tube and aluminum profile structures are prone to deformation under prolonged stress, with a lifespan of only 2-3 years. Additionally, models equipped with a one-button quick plate change function allow for plate changes in just a few seconds, ensuring uninterrupted production and significantly improving efficiency compared to traditional manual plate changes.
