We Design, Engineer, and Manufacture Slot Dies.

Coating Tech Slot Dies has full on-site manufacturing capabilities with machine tool research and development, wet lab, and analytical tool facilities at their headquarters and manufacturing facility. Slot dies are used for a variety of techniques including direct, indirect, tensioned web, curtain, lane, multi-layer, and intermittent coating.


Fixed Lip Slot Dies are the most commonly used and can be manufactured in a range of sizes to meet your coating needs.


Flexible Lip Slot Dies are typically used to coat fluids that experience change in viscosity during the coating process or to provide variable coating capability across a range of products.


Rotary Rod Slot Dies are used particularly in hot melt coating situations.


Coating Tech Slot Dies has in-house design, engineering, and manufacturing capabilities and can accomplish your customized solution promptly. Provide your non-disclosure agreement to Coating Tech Slot Dies, and get started on your custom coating project today!

The CTSD team has strong scientific foundational knowledge and can adapt their understanding of the coating process to create solutions for all types of manufacturers and processes.

Our Industry Experience

slot die coating for adhesives
slot die coating for the aerospace industry
slot die coating for building materials manufacturing
slot die coating for lithium ion batteries and energy storage
slot die coating for the filtration industry
slot die coating for the graphics industry
slot die coating for medical and pharmaceutical applications
Slot die coating for optical film
Optical Film

General Specifications

  • Standard Die Body Flatness/Straightness Tolerance: = 0.0001 inch (2.54 microns) maximum deviation over the entire length of each die half
  • Slot Die Positioner: repeatability and accuracy within 0.0001 inch (2.54 microns)
  • Coat width: up to 80.00 inches (2032 mm)
  • Lip Opening: determined via body shims or adjustable lip opening (0-20 mil/ 0-508 micron)
  • Fluid Viscosity Range: 1 – 500,000cP
  • Number of Layers Coated by Types of Dies: 
    Slot Dies: 1-3 layers
    Slot Curtain Dies: 1-3 layers
    Slide Dies: Unlimited number of layers
  • Die Body Construction:
    Standard: Constructed of 15-5 ph stainless steel @ condition H1025.
    Optional: Constructed of 316L stainless steel or Titanium
Available Options:
  • Multi-layer coating is accomplished via multiple manifolds
  • Optional replaceable lip inserts
  • Die hinge option to open the upper half in place to 135 degrees for easy access
  • Temperature control via cored holes or electrical wiring
  • Custom shipping containers such as custom built powder coated steel or aluminum
All Slot Dies Include:
  • Two shims
  • Body offset feature
  • Body bolt torque sequence and torque valves engraved in die body
  • Tool kit with torque wrench included
  • Instructions and manual
  • Protective shipping container

Contact Us Today to Request a Quote