top of page
Fixed Slot Triple Layer

Slot Dies for Every Application and Industry

From Packaging to Renewable Energy, Precision Coating Starts Here

Applications of Slot Die Technology

Slot die technology is used across diverse industries for applications such as:

  • Lithium-Ion Batteries: Electrode and separator coatings.

    • Electrode Coating: Ensures uniform deposition of active materials for improved battery efficiency.

    • Separator Films: Achieves consistent insulation to enhance safety and performance.

  • Renewable Energy: Thin-film photovoltaic applications.

    • Photovoltaics: Uniform thin-film coatings increase light absorption and energy efficiency.

    • Fuel Cells: Precise application of catalysts for optimal chemical reactions.

  • Pharmaceuticals: Coating for transdermal patches and medical devices.

    • Transdermal Patches: Delivers consistent drug dosages through precise coating.

    • Diagnostic Strips: Uniform reagent coatings ensure accurate test results.

  • Electronics: Display and circuit manufacturing.

    • Flexible Displays: Ensures defect-free coatings for next-generation screens.

    • Printed Circuit Boards: Applies even coatings of solder mask or conductive inks.

  • Packaging: Adhesive, Barrier, Laminate, and Decorative coatings.

    • Food and Beverage Coatings: ​Precise application in multilayer constructions for adhesion and laminates to prevent moisture, condensation, oxygen, grease, and oil, enable tamper-proof sealing, and apply eco-friendly coatings. 

    • Decorative Coatings: Enhance visual appeal and durability with gloss or matte finishes or holographic coatings. 

​

You can find slot die coating technology in many other industries such as automotive, aerospace, marine, construction, architectural, electronics, touch screens, tapes and labels, solar, textiles, food, medical device, and much more! 

Proven Benefits of Slot Die Technology

  • Cost Savings: Reduce material waste by up to 30% compared to traditional methods.

  • Scalability: Seamlessly transition from R&D to full-scale production.

  • High Throughput: Operates at speeds of up to 3,000 feet per minute 1,000 meters per minute

Comprehensive Slot Die Insights

Welcome to the Coating Academy, your go-to resource for precision coating technology. Below, we provide a detailed overview of slot die specifications, features, and customization options to help professionals understand the capabilities and versatility of slot die systems.

General Die Specifications

1. Precision and Accuracy

  • Die Body Flatness/Straightness Tolerance: Maximum deviation of 0.0001 inch (2.54 microns) over the entire length of each die half ensures flawless coating application.

  • Slot Die Positioner: Achieves repeatability and accuracy within 0.0001 inch (2.54 microns), critical for maintaining consistent coating quality.

2. Coating Dimensions

  • Coat Width: Available widths up to 120.00 inches (3048 mm) to meet diverse application requirements.

  • Lip Opening: Adjustable via body shims or adjustable lip mechanisms, offering precision control from 0-20 mil (0-508 microns).

3. Fluid Compatibility

  • Viscosity Range: Handles fluids with viscosities from 1 to 500,000 cP, accommodating a broad spectrum of formulations.

4. Coating Layers

  • Slot Dies: 1-3 layers.

  • Slot Curtain Dies: 1-3 layers.

  • Slide Dies: Unlimited number of layers for complex multilayer applications.

Die Body Construction and Standard Features

1. Materials

  • Standard Construction: 15-5 PH stainless steel @ condition H1025 for durability and performance.

  • Optional Materials: 316L stainless steel, Hastelloy, Titanium, or other exotic metals for specialized applications.

2. Included Components

  • (4) 302-304 Stainless Steel or (8) Poly Body Shims for fine adjustments.

  • Fasteners: 18-8 stainless steel for durability and corrosion resistance.

  • Nickel/Teflon Coating: Enhanced wear resistance and anti-stick properties.

  • Feed Adapter: Seamless fluid delivery for optimal coating.

  • Body Offset Feature: Enables precise alignment during operation.

  • Die Hinges: Open the upper half to 135 degrees for convenient cleaning and maintenance.

  • Engraved Torque Sequence: Guides proper assembly and operation.

  • Tool Kit and Instructions: Includes a torque wrench, manual, and step-by-step guidelines.

  • Custom Shipping Containers: Powder-coated steel or aluminum for safe transportation and storage.

Optional Features for Enhanced Functionality

1. Multi-Layer Coating

  • Achieved using multiple manifolds to apply 2-3 layers simultaneously.

2. Replaceable Lip Inserts

  • Standard lip insert included; additional sets are available.

  • Lip insert machining ensures optimal performance for different applications.

  • Comes with a dedicated lip insert container for organized storage.

3. Temperature Control

  • Options include cored holes for fluid temperature regulation or electrical heating elements for precise thermal management.

4. Angled Lifting Brackets

  • Included for multi-layer dies, simplifying handling and maintenance.

5. Exotic Die Materials

  • Customizable die body materials such as Hastelloy, Titanium, Molybdenum, or non-magnetic stainless steel for unique industrial needs.

Why Choose Our Slot Die Systems?

  1. Unparalleled Precision: Advanced engineering ensures maximum accuracy and repeatability for uniform coatings.

  2. Durable and Versatile Construction: High-quality materials and optional customizations meet the demands of various industries.

  3. Comprehensive Support: Included manuals, tool kits, and shipping containers simplify integration and maintenance.

 

Interested in learning how these features can improve your coating process? Contact us today to speak with an expert and request a personalized quote.

Let us help you optimize your slot die system!

Next Chapter: Not All Slot Dies are Created Equally. Learn About Different Slot Die Features and Specifications.

Ready to Take the Next Step?

If you're exploring slot die technology or looking for a reliable partner, Precision Die Systems is here to help. Our experts are ready to discuss your unique needs and recommend a solution tailored to your application.

​

Fill out our contact form today to learn more about how slot die technology can enhance your production process.

FAQs

What materials can be coated with slot dies?
Slot dies can handle a wide range of materials, including polymers, adhesives, and aqueous solutions.

 

How precise are slot dies compared to other methods?
Slot dies offer unmatched precision, delivering consistent coatings as thin as a micron.

 

Can slot dies be integrated into existing production lines?
Yes, slot dies are versatile and can be customized to fit seamlessly into your current system. 

​

How do I determine the right slot die for my application?
Our engineers will work with you to analyze your material properties, substrate, and production goals to recommend the ideal configuration.

 

What maintenance is required for slot dies?
Regular cleaning and inspection are necessary to ensure optimal performance. Visit our Die Cleaning page for more information.

Learn More about 

Precision Slot Die Types

Slide Slot Die Curtain Slot Die

Slide Curtain Dies

Multilayer Slide Die

Cascade Dies

Triple Layer Fixed Lip Slot Die

Triple Layer Fixed Slot Die

Extrusion Die Feed Adapter Block

Ancillary Equipment for Coating Dies

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 120.00 inches (3048 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 SS, Hastelloy or Titanium

All Slot Dies Include:

  • (4) 302-304 Stainless Steel or (8) Poly Body Shims

  • 18-8 Stainless Steel Fasteners

  • Nickel/Teflon Coating

  • (1) Feed Adapter

  • Body offset feature

  • Die Hinges

  • Body bolt torque sequence and torque valves engraved in die body

  • Tool kit with torque wrench included

  • Instructions and manual

  • Custom shipping container(s) such as custom built powder coated steel or aluminum

  • Die shipping container

  • Torque Wrench

  • Spare parts kit

Available Options:

  • Multi-layer coating is accomplished via multiple manifolds

  • Replaceable lip inserts

  • Manifold Plugs

  • Die hinge option to open the upper half in place to 135 degrees for easy access

  • Temperature control via cored holes or electrical wiring

  • Angled lifting brackets (not typical for single or dual, but must be included for multi-layer dies)

  • Lip Inserts

    • Requires lip insert machining​

    • One lip set standard included with quote

    • Additional lip sets optional

    • Lip insert container

  • Exotic die body steel available include, but are not limited too:

    • Hastelloy​ Die

    • Titanium Die

    • Non-magnetic stainless steel Die

    • Molybdenum Die

    • Inquire for other available materials

  • Cored holes​

Contact Us to Learn More

Whether you’re exploring slot die technology for the first time or seeking a partner to optimize your production, Precision Die Systems is ready to help.

 

Fill out our contact form to speak with one of our experts and find the perfect solution for your needs.

Thanks for submitting!

PDS Laser Etch Logo
bottom of page