Liner production line SC-RO20

Gravure Coater Type SC-RO20, Reverse Osmosis Membrane Coating Line SC-RO20 reverse osmosis membrane coater is a gravure coating unit used in RO membrane processing. This gravure coater integrates dip coating (immersion coating) with slot die coating techniques. The slot die coating is a high accuracy coating method for deposition of a liquid film to the surface of a substrate. The liquid is pumped to the slot die coating head where can transform the liquid into ultra-thin coatings and transparent optical coatings, while the amount of coating is precisely controlled within a defined tolerance. The reverse osmosis membrane coater has a double walled coating fluid tank, which is made of corrosion resistant stainless steel to adapt a variety of chemical liquids in dip coating process. Furthermore, guide rolls and other accessories contacted with chemical liquids are all corrosion resistant. Specifications Machine speed: 20m/min Coating method: dip coating Coating substrate: nonwoven fabrics, weight 100g/m³ Coating thickness: 0.12-0.16mm Tension range: 40-200N/full width Configurations Unwind unit 1. Independent unwinder is equipped with web guiding function. 2. The unwind unit is independently driven by servo motor, with closed-loop tension control for active unwinding. And alarm warns when roll diameter is less than specified value. Receiving and feeding unit 1. Receiving method: receiving rolls in smooth motion, remaining the tension. 2. Receiving operation time: 2 mins; Web length: ≥30 meters; 3. Equipped with sensor for controlling of web stroke, electrical and mechanical limit switches are available. 4. Webs in-feeding is positioned above the operation section.