Cooling and setting is the key transformation process of PP strapping from melt to solid product. This production line features a dual-stage cooling system with a first cooling water tank and a secondary cooling water tank.

The first tank is 3.5m long, equipped with a honeycomb water inlet, adjustable water level, and multiple sets of sizing tracks. The entire tank can move forward/backward and up/down for easy alignment. The secondary tank is 5.5m long, with water temperature precisely adjustable between 10-25°C, ensuring the product fully crystallizes and sets at low temperature.

The dual-tank design achieves a staged cooling process of "quenching + low-temperature precision cooling," effectively controlling crystallinity, reducing internal stress, and improving product dimensional stability and mechanical properties.

• First cooling tank: L3.5m*W0.8m*H0.65m, 304 stainless steel, plate thickness 2.0mm, lifting motor 0.55KW, honeycomb water inlet, adjustable water level, multiple sizing tracks, fully movable
• Secondary cooling tank: L5.5m*W1.3m, tank width 0.65m, 304 stainless steel, plate thickness 2.0mm, water temperature adjustment 10-25°C, built-in water shedding motor 0.75KW and haul-off motors 2.2KW*2 units