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Model: SL-TRP
The UV putty filling machine applies the single application rubber roller and a doctor stainless steel roller to cover the liquid UV putty on the board circularly evenly, then uses a heavy steel roller to press and compact the pores of the board. It is ideal for materials with numerous, noticeable pores, providing better adhesion and a smoother surface for subsequent coatings.
Application Materials:
Application Coatings:
The putty filling machine applies UV putty into open surface pores of flat boards before sealing, priming, and finishing. Instead of only spreading a coating layer across the top surface, the filling process uses rubber and stainless steel rollers in sequence to push filler material deeper into the substrate structure.
SENLIAN uv putty filling machine is suitable for wood, MDF, plywood, fiber cement board, MGO board, and other porous flat substrates. The process supports furniture, cabinets, doors, flooring, bathroom products, and building wall panels where surface preparation affects the following coating stages.
UV putty enters the working section through the rubber roller and spreads across the panel surface. Stainless steel rollers then regulate the material distribution and apply additional pressure, driving the filler into open pores and surface cavities.
Each roller performs a specific function during the filling sequence:
This roller arrangement is designed for porous flat boards where surface irregularities may affect later coating quality. After pore filling, primer and finishing layers can be applied on a more uniform substrate surface.
The UV putty supply system feeds filling material toward the application roller. Rubber and stainless steel rollers are driven by separate motors, with independent reducers assigned to each transmission section.
Independent drive control keeps roller movement coordinated with the filling process. The color touchscreen HMI integrates transmission settings and machine operation, allowing production adjustments from one control interface.
Surface preparation influences how later coating layers interact with the substrate. Wood, MDF, and plywood can pass through putty filling before primer application, while fiber cement board can include pore filling as part of its sealing and priming process.
For MGO board applications, SENLIAN integrates UV putty filling before primer sealing and subsequent UV finishing processes within the UV roller coating line. The same process structure can be adapted according to substrate characteristics and coating requirements.
Pore filling can operate as part of a complete surface-finishing route rather than a separate manual process. After filling, panels can continue through primer coating, sanding, top coating, and curing stages according to the final surface specification.
For continuous UV production, the machine can be integrated into a UV roller coating line, placing the filling process before primer roller coating and downstream UV finishing.
Substrate condition, filler characteristics, and downstream coating requirements determine the working configuration. Roller structure, transmission system, and machine layout can be adjusted according to panel dimensions, production speed, and finishing process requirements.
This allows the putty filling machine to become part of a coordinated surface-finishing process instead of an independent preparation step.
Custom UV putty filling machines of different sizes are available for various products, and the parameters will vary accordingly. Please contact us.
UV putty filling machines can be integrated into automatic production lines, including processes such as automatic sanding, UV curing, and topcoat application. UV putty requires only 3-10 seconds for deep drying, and the line speed can reach 8-12 m/min, making it suitable for large-scale mass production scenarios.
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Traditional solvent-based putty application methods, which involve manual scraping, are highly susceptible to environmental temperature and humidity and require several hours for natural drying. UV putty filling machines can reduce costs by over 40% by optimizing staffing, paint usage, and workspace.
The cured UV putty layer has a pencil hardness of 2-3H and strong adhesion (cross-hatch test ≥ grade 1). After fine sanding, the putty coating surface is smooth and delicate, effectively enhancing the richness of the later topcoat colour and preventing quality defects such as substrate colour exposure and pinholes.
A UV putty-specific rubber roller works in conjunction with two chrome-plated stainless steel rollers. The rubber roller and one stainless steel roller jointly control the paint thickness, while the other heavy-duty, 300mm diameter mirror-finish stainless steel roller applies pressure to the board, perfectly filling the UV putty into the product.
Each roller assembly is precision-coupled to the drive motor via premium NSK precision bearings fitted with a ceramic protective shield. Quick-release design helps with the rubber roller maintenance or to replace new ones more easily, especially for wide, heavy rollers. This feature reduces machine downtime to less than 20 minutes.
The UV putty filling machine integrates electric lifting and manual fine-tuning mechanisms, offering fast response and precise positioning. The electric lifting operation is convenient, while the manual adjustment wheel allows micron-level correction of the roller vertical height with high sensitivity, precisely matching the thickness of different substrates and coating accuracy requirements.
The preheated UV coating exhibits better leveling and adhesion to the substrate. The UV putty filling machine is equipped with a stainless-steel container and a temperature controller that precisely heats the water medium and maintains a stable temperature of about 50℃, ensuring the liquid UV coating remains in continuous, constant-temperature circulation.
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 putty filling machines to fit the dimensions of your products and spaces.
Customize UV putty filling machines to fit different base materials and paints.
Customize UV putty filling machines to achieve different coating effects and thickness.
Customize UV putty filling machines for different products and conveying requirements.
Customize UV putty filling machines to meet diverse functional and application needs.
Customize UV putty filling machines to optimize electricity consumption across different countries.
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