Photo
Model: SL-TLU
The UV curtain coating machine draws the liquid paint from the paint box into the precise knife bit and down like a waterfall as the materials pass through the paint curtain on the conveyor at high speed, with a paint filter box to ensure clean, bubble-free paint for the best coating effect.
Application Materials:
Application Coatings:
The UV curtain coating machine forms a continuous sheet of liquid coating across the working width while panels move through the coating area at high speed. Paint flows from the coating container into the precision knife bit and falls onto the moving substrate as a controlled curtain.
SENLIAN uv coating machine is suitable for fiber cement board, magnesium oxide board, calcium silicate board, wood, veneer, glass, metal, plastic, marble, ceramic, and other compatible surfaces. UV, PU, PE, and special coatings can be applied according to different production processes.
The curtain coating method allows continuous surface application across wide panels. As a coating machine uv solution for high-speed finishing processes, it provides a stable coating flow without repeated contact between rollers and the substrate.
The knife body controls the paint stream before it reaches the material surface. Its large internal chamber provides space for stable coating movement, while the mechanical flip-style structure allows precise adjustment of the knife position.
The aluminum alloy construction supports heat transfer through the knife body, helping maintain a consistent coating curtain during operation.
The coating process allows you to:
For large-area production, the continuous curtain method keeps the coating process moving with the conveyor. It supports high-gloss and mirror-like finishes while reducing common surface issues such as roller marks, sagging, and visible bubbles when coating conditions are properly controlled.
Stable coating starts with clean material preparation. The stainless steel heating filter box uses multiple mesh filters along an extended flow path, allowing the coating material to pass through filtration before entering the knife body.
A low-speed heavy-duty impeller pump maintains continuous coating supply toward the application area. Excess coating that does not remain on the panel returns to the circulation system instead of being discarded after one application.
After repeated filtration, the coating material can be reused. The circulation system keeps the paint in liquid form and achieves a paint utilization rate above 96%, while the curtain application method produces no paint mist during operation.
After coating application, panels can continue directly into the UV curing stage. When the coating and curing processes are connected, the coated surface can be dried within 3–10 seconds, reducing the space required for conventional drying methods.
For complete production integration, connect the machine with UV curing equipment and upstream surface-treatment equipment. This creates a continuous route from panel preparation and coating to final curing without interrupting production flow.
The conveyor uses a UV-resistant belt designed to withstand UV coating corrosion, chemical exposure, and high-temperature ageing. The belt surface reduces coating adhesion and staining during production, while routine cleaning can be performed with alcohol or UV thinner.
Custom UV curtain coating machines of different sizes are available for various products, and the parameters will vary accordingly. Please contact us.
UV Curtain coating machines are suitable for rapidly coating large-area materials. When operating independently, it can achieve a maximum production efficiency of 110 m/min. When used in conjunction with a UV curing machine, the coating can be dried in just 3-10 seconds, saving considerable drying space.
With precise control of coating fluidity and thickness, the UV curtain coating machine can easily achieve a high-gloss or mirror-like finish. It can apply a paint film with a thickness of at least 0.06mm, resulting in a uniform and smooth coating without roller marks, sagging, bubbles, or other defects.
The UV curtain coating machine is equipped with a paint circulation system. Paint that doesn’t adhere to the material surface is filtered multiple times in the paint tank and reused. The paint remains in liquid form throughout the process, with no paint mist emissions, and achieves a paint utilization rate of over 96%.
The main knife body of the UV curtain coating machine uses a mechanical flip-style tool bit rather than a traditional air-cylinder type. The knife is made of aluminium alloy rather than steel, which has better thermal conductivity, helping it retain its shape and creating an even paint stream and waterfall. Its chamber is large enough to hold more paint and can be precisely adjusted to ensure a smooth paint finish of varying thicknesses.
Our UV curtain coating machine's knife body undergoes precision manufacturing processes, including T6 heat treatment, surface planishing, and surface electroplating. T6 is an international standard process for aluminium alloys that elevates the overall mechanical strength and structural compactness and prevents deformation, corrosion, and wear of the knife body during long-term high-load coating operations.
The UV curtain coating machine is equipped with a heating stainless steel box containing seven stainless steel mesh filters of varying degrees, creating a longer paint flow circuit to ensure that air bubbles and other impurities are removed from the paint before use. Simultaneously, our precisely manufactured low-speed, heavy-duty impeller pump ensures a uniform flow of UV coating and a stable supply to the machine's knife body.
This professional UV-resistant conveyor belt from the Netherlands features excellent resistance to UV coating corrosion, chemical erosion, and high-temperature ageing. It eliminates common problems such as paint adhesion, stains, and back panel contamination during the coating process. Daily cleaning requires only a simple wipe with alcohol or UV thinner to restore a clean surface.
When your substrate, coating, or space is unusual, or when you have unique technical requirements, our custom services may be the best way to help you achieve your goals.
Customize UV curtain coating machines to fit the dimensions of your products and spaces.
Customize UV curtain coating machines to achieve different coating effects and thicknesses.
Customize UV curtain coating machines to fit different paint features.
Customize UV curtain coating machines for different application requirements.
Customize UV curtain coating machines for different products and coatings.
Customize UV curtain coating machines to optimize electricity consumption across different countries.
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