Roll & Equipment

KRST is Korea's sole specialized manufacturer of custom rolls and equipment.

Product List

KVS

The roll is constructed by compressing a specialized ultra-fine microfiber non-woven fabric onto a hollow shaft. Designed for integration with the KVS vacuum system, it is specifically engineered to effectively eliminate fine residual liquids from the surface of sheet materials.

Product Principle

Unlike conventional Non-Woven Rolls, which rely on surface pressure to achieve wringing through suction and discharge, the Vacuum Roll utilizes a hollow shaft structure. This design evenly distributes the negative vacuum pressure inside the shaft across the entire surface, enabling efficient absorption of the solution. As a result, the Vacuum Roll offers significantly superior wringer performance compared to traditional Non-Woven Rolls.

※ Applicable Rolls: Wringer Roll, Squeeze Roll, Wiper Roll

  1. The roll compresses to expel the solution contained within it.
  2. As the roll returns to its original state, it absorbs the residual solution from the strip.
  3. The absorbed solution is then expelled through the piping located on the side of the shaft.
Vacuum Suction Roll (KVS Roll SYSTEM) Principle

Clean Surface

  • Clean Surface
    • Enables complete absorption of solution in the edge areas, which was previously restricted with Rubber Roll / Non-Woven Roll.
    • Significantly reduces solution residue on the strip surface (below 1g/m²).
    • Allows the use of the maximum spraying volume of cleaning oil, which was previously limited due to residue on the strip surface, thereby enhancing strip surface quality.
  • Efficiency
    • Achieving complete removal of liquid from the strip surface, thereby maximizing production efficiency through extended roll exchange intervals (Line Speed Up).
  • Saving
    • The cleaning oil/solvent suctioned by the vacuum roll can be reused, leading to a reduction in solvent replenishment and replacement costs.
    • Reduction in electricity and steam consumption by eliminating the need for air blowers and dryers at the rear of the vacuum roll.
    • Lower maintenance costs resulting from the extended lifespan of the wringer roll at the front.
    • Decreased opportunity costs associated with line downtime due to longer roll exchange intervals.
  • Safe / Clean
    • Elimination of solvent residue and splashing, improving the work environment and reducing safety risks.
    • Improved factory conditions by discontinuing air knives on strip edges, reducing splashing and noise.