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Differential Roll Coater

The Dubois Differential Roll Coater uses a rubber application roller to apply coating directly to a part passing through the machine. The durometer of these rolls is selected based on the finish being applied and the substrate to which it is applied. The coating thickness is varied by the speed and direction of the doctor roll. These Roll coating machines are capable of handling water based, solvent based, and UV based coatings. Dubois Roll Coaters are designed for easy changeover of materials.

Dubois manufactures coaters in industry standard widths such as 52”, but has produced applicators from 6” to 144” in width to best fit applications; do not hesitate to ask about special widths.

Primary uses:

  • Flooring
  • Flat panel doors
  • Drawer sides
  • Cabinets
  • Ceiling tile
  • Siding
  • Foam

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Key features:

  • Air loaded floating applicator roll
  • Air or jack loaded doctor roll
  • Quick change doctor blades and applicator rolls
  • Digital readouts for precise control
  • Air actuated head lift to automatically raise head when conveyor stops
  • Circulates coating for maximum efficiency

Optional features:

  • Variable speed
  • Automatic head height adjustment
  • Overlap protection
  • Doctor roll heating and cooling
  • Machines can be designed for hazardous locations
  • Various roll coverings

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Dubois equipment is solidly constructed for long term reliability. Our engineering innovations have enhanced productivity and simplified maintenance to drastically reduce downtime. Dubois proudly manufactures in the U.S., assuring rapid response and fast availability of replacement parts from local

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