Slot-die Heads
From precision slot-die coating in laboratory settings to seamless industrial-scale production, our slot-die heads deliver unmatched performance.
Precision Slot-Die Heads by infinityPV
Engineered with precision and innovation in mind, our slot-die heads offer unparalleled slot-die coating across various materials and size. Available in PEEK, Stainless Steel (315/316L) and Titanium in standard widths of 40 mm, 65 mm, 115 mm, 165 mm, 195 mm and 305 mm, these slot-die heads accommodate a wide range of working widths, allowing for precise slot-die coatings ranging from minute details to expansive surfaces.
Designed for versatility, our slot-die heads feature optimized dead volumes suitable for laboratory, pilot, and industrial-scale applications. Whether you're working with microliters or milliliters, our heads deliver consistent and reliable performance across a variety of coating scenarios.
Practicality is at the forefront of our design. With only two parts, our slot-die heads simplify assembly, disassembly, and cleaning processes, enhancing efficiency and reducing downtime. Whether you're operating at low pressure with low-viscosity inks or seeking rapid positioning on automated coating platforms, our lightweight PEEK heads offer ease of use without compromising precision.
We prioritize accessibility and convenience. We maintain a comprehensive stock of standard heads and shim kits, ensuring quick availability for your projects. Additionally, our team specializes in crafting custom shims tailored to your unique specifications, providing personalized solutions to meet your specific coating requirements.
Experience the reliability and performance of infinityPV slot-die heads — an essential tool for achieving precise and efficient slot-die coatings in diverse applications.
Key Features
Standard Available in Widths of:
Accessories
Applications
Printed Solar Cells (OPV, Perovskite, DSSC, Tandem)
Adhesives and Sealants
Medical Devices (Biocompatible and Drug-eluting Layers)
Packaging Materials
Available with Electrical Heating
Fits all Our Coating and Printing Platforms
Standard and Customized Slot-die Heads
40 mm Head (10/13 mm Coating Width)
65 mm Head (50 mm Coating Width)
115 mm Head (100 mm Coating Width)
165 mm Head (150 mm Coating Width)
195 mm Head (180 mm Coating Width)
305 mm Head (280 mm Coating Width)
Our slot-die heads are engineered for exceptional performance and reliability, designed to meet industry standards with precision. We offer both standard and customizable slot-die heads to suit a range of needs.
Our most popular standard option is the Stainless Steel (M315 Heavy), known for its cost-effectiveness and versatility, suitable for 95% of applications. For those with specific requirements, we offer alternative materials including:
PEEK (Ultra-Lightweight), ideal for weight-sensitive applications
Stainless Steel (316L Heavy), which provides durability and resistance
Titanium (Lightweight), combining strength with reduced weight.
In addition to these materials, we provide slot-die heads in various alloys like aluminum-magnesium and can manufacture heads using specialty materials such as Inconel and Teflon upon request. For unique needs, our team is ready to collaborate on custom solutions tailored to your exact specifications.
Heated and Non-Heated Slot-die Heads
We offer high-performance heated slot-die heads designed to meet the precise needs of your slot-die coating applications, with customizable heating options to ensure optimal temperature control. Our solutions include both direct heating of head components and the use of a heated mount. While a heated mount is versatile and compatible with any head design, it is less effective for materials like stainless steel, PEEK, and titanium due to their poor thermal conductivity, leading to uneven temperature control. We recommend heated mounts only for highly conductive alloys, small heads, minimal heating above ambient temperatures, and low flow rates (e.g., a 40 mm head operating at 40°C with a flow rate of 0.1 mL/min).
For superior performance, we offer direct heating through electrical or liquid-based systems. Electrical heating is cost-effective, simple, and widely used, while liquid heating provides advanced thermal management for demanding applications. Direct electrical heating is the most common due to its balance of performance, simplicity, and cost.
Our heated slot-die heads can be customized with side or top-slanted entry points for electrical wiring or liquid hoses. Standard configurations place these entries on the right side of the head when viewed from the front, but we can accommodate custom positions to fit your specific setup.
If you're unsure whether you need a heated slot-die head or which option suits your application best, please refer to our comprehensive guide or contact our expert team for personalized advice.
Slot-die Head Selection Guide
Choosing the right slot-die head is essential for optimizing your coating processes and achieving the best results. Our slot-die head selection guide covers everything you need to know, from understanding your coating application and ink properties to selecting the appropriate material and deciding between heated or non-heated options. By evaluating factors like film thickness, substrate type, and production speed, you can make an informed decision that enhances efficiency and quality. For a more detailed exploration of how to select the perfect slot-die head for your needs, read the full guide or contact our expert team for personalized advice.
| PEEK | M315 Stainless | 316L Stainless | Titanium | |
|---|---|---|---|---|
| 40 mm Head (10/13 mm Working Width) | ✓ | ✓ | 0 | 0 |
| 65 mm Head (50 mm Working Width) | ✓ | ✓ | ✓ | ✓ |
| 115 mm Head (100 mm Working Width) | ✓ | ✓ | ✓ | ✓ |
| 165 mm Head (150 mm Working Width) | ✓ | ✓ | ✓ | ✓ |
| 195 mm Head (180 mm Working Width) | ✓ | ✓ | ✓ | ✓ |
| 305 mm Head (Working Width) | ✓ | ✓ | ||
| Heated 65 mm Head (50 mm Working Width) | ✓ | ✓ | ✓ | |
| Heated 115 mm Head (100 mm Working Width) | ✓ | ✓ | ✓ | |
| Heated 165 mm Head (150 mm Working Width) | ✓ | ✓ | ✓ | |
| Heated 195 mm Head (180 mm Working Width) | ✓ | ✓ | ✓ | |
| Light Weight | ✓ | ✓ | ✓ | ✓ |
| Heat Conducting | ✓ | ✓ | ✓ | |
| Thermally Insultating | ✓ | |||
| Low Heat Capacity | ✓ | |||
| Corrosion Resistant | ✓ | ✓ | ✓ | ✓ |
| Precision Ground | ✓ | ✓ | ✓ | |
| Cost | Medium | Low | High | High |
Standard and Customized Shim Kits
We offer both standard and customized shim kits for slot-die heads to meet your precise coating needs. Our standard shim kits provide reliable performance with a variety of thicknesses and materials for general applications, while our customized kits are tailored to fit specific requirements, ensuring optimal coating uniformity and efficiency. Whether you need a standard solution or a bespoke option, our shim kits are engineered to deliver exceptional quality and performance for your slot-die coating system.
Standard Shim Kit
Our standard shim kits are meticulously designed to fit a wide variety of slot-die heads. These kits provide reliable performance and are ideal for many common applications. With a range of thicknesses and materials available, our standard shim kits ensure optimal coating uniformity and efficiency.
Customized Shim Kit
For more specialized needs, we offer customized shim kits tailored to your specific requirements. Whether you need unique dimensions, special materials, or specific thicknesses, our team works closely with you to create a shim kit that perfectly matches your slot-die head and application.
Standard and Customized Fitting Kits
We offer fitting kits for slot-die heads tailored for both low viscosity and high viscosity applications. Our low viscosity fitting kits ensure smooth, consistent flow for thinner coatings, while our high viscosity kits are designed to manage the challenges of thicker materials with precision and reliability. Each kit is engineered to meet the highest standards of quality, enhancing the performance of your slot-die coating system for optimal results.
Low Viscosity Fitting Kit
For applications involving low viscosity coatings, our fitting kits are engineered to deliver smooth, consistent flow and minimal clogging. These kits are designed to enhance the efficiency of your slot-die head, ensuring uniform coating even with thinner materials.
High Viscosity Fitting Kit
By adjusting the thickness of the shim, you can finely tune the gap between the slot-die lips, influencing the amount of material deposited onto the substrate during the coating process. Shims play a crucial role in achieving precise and uniform coatings.
We Are Ready to Help You
With decades of experience in printed electronics, our team is here to provide in-depth guidance on choosing the right system for your needs. Whether you're exploring advanced production methods or need help fine-tuning your setup, we offer expert advice tailored to your project. Contact us to discuss how we can support your solar cell development.
Introducing the Slot-die Coater
Take your thin-film research to the next level with the Slot-Die Coater. Designed to meet the rigorous demands of R&D, this cutting-edge sheet coater delivers precision and reliability for applications including printed batteries, solar cells, fuel cells, OLEDs, and sensors. Whether working with organic or inorganic materials, our Slot-Die Coater ensures exceptional coating uniformity, empowering researchers to achieve breakthrough results.
Videos About Slot-die Coating
Learn how to assemble a slot-die head step-by-step. View full guide here.
How to Make Solar Cells Using Slot-die Coating
Battery cell fabrication using slot-die coating.
How to Mount a Slot-die Head.
Learn More About Slot-die Coating
FAQs
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A slot-die head is a precision coating tool used in various manufacturing processes to deposit a uniform layer of material onto a substrate. It operates by forcing a liquid through a narrow slot, which ensures an even distribution across the width of the substrate. Slot-die coating is widely used in industries such as electronics, pharmaceuticals, and renewable energy.
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Choosing the right slot-die head depends on several factors, including the type of coating material, desired coating thickness, substrate width, and the application. It's important to consider the following:
Coating Material: The viscosity and rheology of your coating fluid will determine the optimal slot gap and lip length.
Coating Thickness: Thicker coatings may require a wider slot opening or higher fluid pressure.
Substrate Width: Ensure that the slot-die head is wide enough to cover the entire width of your substrate.
Application Requirements: Consider if your application requires uniformity, edge control, or multi-layer coatings.
For personalized advice, consult our selection guide or contact our technical support team.
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We offer slot-die heads in standard sizes of
40 mm Slot-die Head (10/13 mm Working Width)
65 mm Slot-die Head (50 mm Working Width)
115 mm Slot-die Head (100 mm Working Width)
165 mm Slot-die Head (150 mm Working Width)
195 mm Slot-die Head (180 mm Working Width)
305 mm Slot-die Head (280 mm Working Width)
Custom sizes can also be manufactured to meet your specific application needs. The slot gap, which controls coating thickness, can also be customized, usually ranging from 5 microns to several hundred microns.
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Slot-die heads are commonly made from stainless steel due to its durability, corrosion resistance, and ease of cleaning. However, other materials such as aluminum or specialized alloys can be used depending on the chemical compatibility with the coating material and the operating environment. At infinityPV, we offer slot-die heads in the following materials:
PEEK (Ultra-Lightweight): Ideal for applications where weight is a critical factor.
Stainless Steels (316L Heavy): Known for their durability and resilience.
Titanium (Lightweight): Combining strength with lightweight properties for optimal performance.
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Lead times vary depending on the complexity and customization of the slot-die head. Standard sizes and materials typically ship within a week, while custom orders may take 6-8 weeks. Expedited manufacturing options are available for urgent needs.
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Heated Slot-Die Heads: These are designed to maintain or elevate the temperature of the coating fluid, which is essential for materials that require precise temperature control for optimal viscosity and flow properties. Heated heads are ideal for applications involving high-viscosity fluids or temperature-sensitive materials.
Non-Heated Slot-Die Heads: Suitable for materials that do not require temperature control, these are generally simpler and less expensive. They are commonly used for coatings where room temperature is sufficient to achieve desired results.
For an in-depth understanding of the differences between heated and non-heated slot-die heads, check out our comprehensive guide.
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Slot-die heads are versatile and used in a wide range of applications, including:
Electronics: Coating of OLED displays, touchscreens, and printed circuit boards.
Renewable Energy: Deposition of thin films in solar cells, fuel cells, and batteries.
Pharmaceuticals: Coating of tablets, patches, and films.
Packaging: Barrier coatings on paper, plastics, and films.
Automotive: Application of adhesives, sealants, and coatings on automotive parts.
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Shim kits are used to fine-tune the coating thickness by adjusting the gap between the slot-die lips. They are thin, precision-engineered spacers inserted into the slot-die head to modify the slot opening. Shim kits are essential for applications requiring high precision and consistency in coating thickness.
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Fitting kits include all necessary hardware and adapters to integrate the slot-die head with your existing coating system. They ensure a secure and precise fit, minimizing the risk of leaks or misalignment. Fitting kits are tailored to your specific equipment and application requirements.
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Proper maintenance and cleaning are crucial to extending the lifespan of your slot-die head. Regular cleaning prevents the buildup of dried coating materials that could obstruct the slot or damage the head. Use appropriate cleaning solvents compatible with your coating materials, and disassemble the head carefully to avoid damaging any components.
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Yes, custom slot-die heads can be designed to meet your specific requirements. Customizations can include size, slot gap, material, and additional features such as heating elements or specialized coatings. Contact our engineering team to discuss your unique needs.
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Precision: Slot-die coating offers unmatched control over coating thickness and uniformity.
Efficiency: It allows for high-speed coating with minimal material waste.
Versatility: Can be used with a wide range of materials and substrates.
Scalability: Easy to scale from lab-scale prototypes to full-scale production.
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Installation varies depending on your equipment and application. Generally, it involves securing the slot-die head in the coating system, e.g. a Laboratory Roll-to-Roll Coater or a Research Laboratory Coater, connecting the fitting kit, and adjusting the alignment and slot gap. Detailed installation instructions are provided with each slot-die head, and our support team is available to assist with setup.
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Yes, slot-die heads can be used for multi-layer coatings by stacking multiple heads or using specialized heads designed for simultaneous multi-layer deposition. This is especially useful in advanced electronics and energy applications where different materials need to be layered precisely.
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Common issues include streaking, uneven coating, and clogging. Solutions often involve adjusting the slot gap, cleaning the head, or modifying the fluid properties. Our troubleshooting guide provides detailed steps for diagnosing and resolving these issues.
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You can purchase slot-die heads, fitting kits, shim kits, and other accessories directly from our online store or through our authorized distributors. For bulk orders or custom requests, please contact our sales team for a quote.
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To achieve optimal results, consider adjusting the slot gap, fluid viscosity, and coating speed. For challenging materials, such as high-viscosity or temperature-sensitive fluids, a heated slot-die head may be required.
Consult our technical support for recommendations tailored to your material.
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Ensure all operators are trained on the equipment and aware of potential hazards, such as high temperatures in heated slot-die heads. Always follow proper cleaning and maintenance protocols to avoid injury and equipment damage. Safety guards and protective gear are recommended during operation.
Build Your Own R2R Slot-die Coater
With its modular design, the Laboratory Roll-to-Roll Coater empowers you to customize your system with the components you need. Choose between slot-die heads, flexographic printers, slurry coaters, air knives, drying and curing units, knife cutters, laminators, laser systems and more.
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