1. Single Roller Coater
    2. Single Roller Coater The single roller coater accomplishes coating application through a group of coating heads, making it suitable for paint coating a variety of flat panels and shaped products, including furniture plates, wooden door panels, cabinet boards, floors and more. Applicable materials include wood, glass, metal, plastic, polymer composites, inorganic materials, and others. Learn More
    1. Double Roller Coater
    2. Double Roller Coater The dual roller coater completes the application of coating through the use of two sets of coating heads. It is particular suitable for application of large area panels and strips, such as floors, cabinet boards and furniture panels. It has a higher efficiency than a single roller coater, and applicable materials include wood, glass and metal panels, plastic film, melamine board, and plywood. Learn More
    1. Double Roller Color Coating Machine
    2. Double Roller Color Coating Machine The double roller roll coater is designed with a high-density sponge roller to complete colorant transfer coating. The sponge roll has a high water absorption rate and excellent wear resistance, making it ideal for water and oil based paints that traditionally have a poor adhesion. Learn More
    1. Putty Filling Machine
    2. Putty Filling Machine The coating feeder is used for putty filling on a variety of panels with uneven surfaces. The application of the coating feeder on a coating line eliminates the need for manual filling, and improves productivity. The suitable materials include furniture boards, wooden doors, floors, MDF panels, inorganic plates, etc. Learn More
    1. Putty Filling Roller Coater
    2. Putty Filling Roller Coater The coating feeder is used for putty filling on a variety of panels with uneven surfaces. The application of the coating feeder on a coating line eliminates the need for manual filling, and improves productivity. After the completion of putty filling, a single roller coater is used to carry out the coating process. Applicable materials include furniture plates, wood doors, floors, MDF panels, and inorganic panels. Learn More
    1. Three Roller Coater
    2. Three Roller Coater The three roller roll coater accomplishes coating with the use of 3 sets of coating heads. It is widely used for coating large area panels and strips, such as floors, cabinet panels, and furniture panels. This machine results in a thicker coating with the use of multi-roll coating processes, with the coated panels featuring a glossy surface. Suitable materials include wood, glass and metal panels, plastic film, melamine plates, and plywood. Learn More
    1. Optical Film Coating Machine
    2. Optical Film Coating Machine Our optical film coating machine is designed to apply protective UV film to ultra-thin electronic glass. This process is vital for protecting these delicate glass components used in electronics. This coating machine is built for precision, ensuring that each piece of glass gets exactly the right amount of coating. Learn More
    1. Glass Roller Coater
    2. Glass Roller Coater Our glass roller coater is engineered to apply specialized glass coatings with exceptional precision. This coating machine ensures an even and thorough application without light leakage. The surface finish is smooth and uniform, with no oil accumulation at the edges or corners. Its special design not only scrapes away excess ink and coating but also recycles it, significantly surpassing traditional methods like spraying or screen printing. Learn More
    1. Glass Nano Coating Machine
    2. Glass Nano Coating Machine This is a deep-processing technology for photovoltaic cover glass. By applying a special nano-solution to the glass surface, it significantly improves the glass's optical properties. This coating reduces surface reflectivity and maximizes light transmission, enhancing the efficiency of solar energy conversion in photovoltaic cells. Learn More
    1. Roll-To-Roll Coating Machine
    2. Roll-To-Roll Coating Machine Inkjet printed products: Ideal for coating inkjet printed materials that come in rolls. Various roll materials: Perfect for a range of rolled materials, including PVC rolls used for vehicle and outdoor advertising, as well as paper and other material rolls. Flat panel materials: Suitable for coating flat panels made from different polymer materials, such as PVC, KT, acrylic, and other polymer boards. Learn More
    1. Bottom Roller Coater
    2. Bottom Roller Coater Our bottom roller coating machine is designed for applying coatings on the backside of solid wood and inorganic board materials. Typically, it involves a single-roll coating process followed by double lamp UV curing, allowing for both painting and drying in one go. Learn More
    1. Wire Brush Machine
    2. Wire Brush Machine This dual steel brush machine is specifically designed for the coloration correction of all kinds of flat panels that have been colored through a sponge roll. This process can make the surface coloration of panels more uniform. The applicable products include furniture panels, wooden door plates, floors, MDF boards, inorganic panels etc. Learn More
What are roller coaters?

Roller coaters are prominent coating equipment used on flat workpieces. With the help of a roller that has absorbed a coating material, the coating is rolled onto the workpiece surface in a uniform manner, resulting in less coating loss. Compared to a curtain coater, their coating effect is almost the same. Roll coaters feature a high degree of productivity, and can be paired with other equipment, including a coating feeder, coating dryer and many other auxiliary equipment pieces in order to create a coating line with a high degree of automation.

What paints are suitable for roll coaters?

Roller coaters require coatings with an excellent levelling property, specific moisture and adhesion properties, and preferably a certain degree of flexibility and wear resistance. Solvent coatings and plastic sol coatings are the most common coating materials, including NC or UV paint.

In addition, roller coaters are also suitable for PU and PE paints. However, these two materials have higher requirements for the rubber roller and are more difficult to clean, making them less convenient for operation.

How do roller coaters finish coating?

During the operation process, a coating rubber covered roller and a steel applicator roll are tightly connected in a parallel manner, and simultaneously rotate in a reverse manner at a constant speed/ The two of them form a V shaped space, which is where the paint stays evenly into. The workpiece that needs to be coated is moved forward at a constant speed, using a conveyor, and passes through the paint covered rubber roll, ensuring a flat, smooth coating effect.

The operator can control the thickness and the uniformity of the paint on the coating rubber covered roller, by simply adjusting the tightness between the coating rubber covered roll and the steel applicator roll.

Characteristics of roller coaters
  • The coating film applications are flat and smooth, ensuring a great fullness with no color differences.
  • The three parts (coating roll, doctor roll and conveyor) are individually controlled using three independent control systems, which are composed of a motor, reducer and frequency converter. This ensures a high precision, excellent stability and flexible adjustment.
  • The critical equipment components are formed through casting with the use of self-designed molds, depending on application requirements. For example, a split type casting is used as the roller bearing block in order to make roller replacement fast and easy.
  • Man-machine interface, precision auto-elevator and other automaton configurations are optional.
  • The roller coater's paint coating application is capable of automated production, in order to enhance the productivity and save labor costs.
  • The coatings can be recovered and recycled, which not only avoids waste and lowers raw material costs, but also reduces environmental pollution.
  • The UV environment-friendly coatings can be quickly solidified and are efficient, green and environmentally friendly.
Structure
  • Frame
    The frame bears all components of the roller coater, just like an automobile chassis does. It is the foundation for the entire machine.
  • Workbench
    The workbench is the feeding system, and the stable operation is a must for flat, smooth coating applications.
  • Lifting system
    Because the lifting system with rigid support is the only adjustment system of a roller coater for controlling a workpiece thickness, it must be both light and accurate.
  • Coating head
    The coating head is the coating system on which the coating rubber covered roll and steel applicator roll are installed.
  • Paint feeding system
    The paint feeding system includes the paint pump, paint tube, ball valve, and union joint. These parts are responsible for pumping paint to the coating head.
  • Paint backing system
    The paint backing system consists of short backing slot, long backing slot and backing hopper, which is responsible for the recovery and recycling of paint.
  • Control system
    The control system includes the control box, electrical cabinet, frequency converter, potentiometer, buttons, and indicator light in order to control the entire roller coater's operation.
Turnkey Solutions of Coating Lines

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Glass Roller Coating & Drying Line
Why Choose SENREN
Why Choose SENREN
  • Comprehensive coating solutionsIn the evolving sector of coating machinery, we stand out with our commitment to research, design, manufacture, sales, and service. Our range of coating equipment, including roller, spray, and curtain coating, is designed to process various surfaces such as glass, metal, plastic, etc. providing a one-stop solution across industries.
    At the forefront of new coating technologies, we continuously develop equipment that meets modern needs. Our focus is on optimizing your resources, controlling costs, and enhancing coating and finishing processes, ultimately driving better business outcomes.
  • Customized coating machinery for every industryAt Senr we understand that different industries and products require specific coating approaches. Our approach is not just about providing coating machinery but offering customized solutions that precisely fit your unique project requirements.
    With us, you're not just getting advanced coating equipment and technology; you're gaining a partner dedicated to your success. We listen closely to your needs and from a professional viewpoint, provide effective solutions and custom-made coating production lines.
  • High quality coating machineryQuality isn’t just a standard for us; it's the foundation of everything we do. Our coating equipment, designed and manufactured in-house, is a reflection of our commitment to supplying quality machinery to our clients.
    Every coating machine we deliver embodies this dedication, offering more than just functionality – it represents our focus on quality. Our manufacturing process is built on the pillars of consistency and precision. From the smallest component to the final product, we ensure that everything we produce meets our standards of quality and efficiency.
  • Comprehensive after-sales serviceFrom the moment our coating equipment leaves the factory to its installation, training, maintenance, and beyond, our after-sales service team is there to support you. With over a decade of experience, they're qualified to tackle any challenge.
    They're not just quick to respond; they're also thorough and committed to resolving any issue, big or small. Consider them your partners in ensuring that your experience with our coating machinery goes smoothly.
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