Products

High-speed Double-sided Simultaneous Slot Die Coating System

SS-SMARTECH High-speed Double-sided Simultaneous Slot Die Coating System is wide in width of high speed and high precision pre-metered quantity coating system, which can realize the double side simultaneous coating and drying of substrate. It solves the problems of poor drying consistency, high energy consumption and large footprint of traditional coating machine, and is suitable for lithium-ion battery, optical film and other industries.

System process flow

Coating principle

Slot Die Coating principle:

Slurry through the precision flow pump control, and from the feeding port into the internal cavity of the die head, form a stable pressure, then from the die head slit outlet, uniformly coated on the foil, the coating through the oven for drying, to complete the coating production of lithium-ion battery electrode.

Contact kissing coating principle:

The contact kissing coating contacts the supporting substrate through the back of the die lip to avoid the adverse effects of the running runout of the coating back roller and bearing on the coating gap, and maintains a stable coating gap through the elastohydrodynamic balance between the feed pressure and the substrate tension, so as to obtain high-quality coating effect.

Main Advantages

  • Low investment cost: coating and drying on both sides at the same time, reducing unit structure.
  • Large capacity of single machine: mechanical speed 120m/min, coating speed 100m/min, width Max1500mm.
  • Equipment stability: double guide rails with direct-drive reel structure, system tension fluctuation ≤ ± 2N.
  • Energy saving and efficiency improvement:equipped with infrared auxiliary heating system, coating speed is increased by 30%, and drying effect is improved.
  • Air suspension oven:flow field simulation structure wind speed deviation ≤5%, double side drying at the same time to improve consistency, energy consumption reduced by 20%.