The CQA819PD fully automatic PP strap winder produces finished packages with a maximum outer diameter of 500 mm. Together with a standard 203 mm core diameter, each coil holds significantly more strap length, effectively reducing the frequency of coil changes for end users. Large-diameter coils are especially beneficial for automatic strapping lines, greatly reducing downtime for strap replacement and improving packaging efficiency. The machine's integrated transport system automatically removes the heavy 500 mm coil and feeds a new tube from the magazine - no manual lifting required. Winding such large coils demands high precision in tension control and layering, and the CQA819PD's dancer constant tension system and electronic 2/3-point layering ensure uniform density and neat end faces from the inner core to the outer layer.

• 500 mm large OD - Holds 30-60% more length than common 300-400 mm coils.
• Fewer downstream change-overs - Automatic strapping machines run longer without stopping.
• 203 mm standard core - Compatible with most winding cores and pay-off stands.
• Automatic unloading - 500 mm coils weigh tens of kilograms, handled without manual lifting.
• Constant tension throughout - Stable tension even at large diameter, avoiding loose inner layers.
• Precision layering for neat ends - Electronic 2/3-point layering keeps 500 mm coil ends flat, no edge collapse.
• Automatic core feeding - Sleeve magazine supplies new 203 mm tubes for non-stop change-over.