Your Professional Roll-To-Roll Coating Machine Supplier
Kunshan Puyuan Vacuum Technology Engineering Co., Ltd. is a high-tech enterprise specializing in the research and development and manufacturing of vacuum coating equipment. It is a functional vacuum coating processing enterprise integrating high-end coating process development, equipment customization and production. It is a technology enterprise with original technology, core patents, and core coating product research and development capabilities.
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Why choose us
Our Certificate
It has passed the ISO9001 system certification and won the honorary titles of Kunshan Science and Technology Research and Development Institution, High-tech Enterprise, and Advanced Quality Management Unit. And applies for an average of three invention patents each year and also with the CE important certificate.
Production Market
The company adheres to the concept of "focusing on the research of coating technology and providing high-quality products and services", wins the trust and support of domestic and foreign customers, and successfully opens up the foreign market.
Product Application
The fields involved cover the tool industry, mold industry, automotive industry, medical device industry, semiconductor industry, electrode industry, aerospace field and high-energy particle field.
Our service
The company has a professional technical team with rich production experience to ensure high quality and high efficiency of equipment production. At the same time, it has a professional and efficient after-sales service team to solve various technical problems encountered in the use of vacuum coating equipment for you, eliminating customers' worries.
Roll-to-Roll coater is a compact and user-friendly coating machine used to apply slurry mix onto current collectors in li-ion battery manufacturing. Scraping thickness and operating rate can be adjusted via the coater’s integrated computer panel. All components which come into contact with the slurry mix are composed of stainless steel.
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The equipment can realize the operating substrate thickness |
Aluminum foil: 11~30um copper foil: 8~30um; |
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Maximum coating width |
280mm |
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The maximum speed of mechanical transport |
5m/min |
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The speed accuracy |
±0.1m/min |
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Coating speed |
>5m/min |
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Suitable for slurry viscosity |
1500~15000 Cps |
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Suitable for coating single-sided dry thickness |
30~200µm |
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Coating accuracy |
Double-sided accuracy of dry thickness: <±0.004mm |
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The inner diameter of the core |
Adopts a 3-inch shaft |
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Oven temperature control accuracy |
<±3ºC, independent PID adjustable drying oven temperature. |
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Power |
6 (KW) |
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Coating method |
Continuous coating |
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Can be moved |
With 4 universal wheels |
1. Adopting the coil feeding and discharging method, the coating process is highly continuous
2. Able to adapt to the coating of various materials, including films, paper, metal, fabric, etc. of different thicknesses and materials
3. Equipped with advanced coating system, uniform coating and high efficiency
4. Equipped with advanced automatic control system, which can automatically adjust the coating parameters
5. Equipped with hot air drying system and energy-saving UV curing device
Advantages of Roll to roll coating machines
High Efficiency
Continuous operation enables high-speed production for large volumes.
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Cost-Effective
Reduces material waste and labor costs compared to batch processes.
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Versatility
Supports various substrates and coating types, from thin films to thick layers.tion
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Consistency
Ensures uniform coating thickness and quality across the entire substrate.
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Scalability
Easily adapted for large-scale industrial applications.
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Application of Roll to roll coating machines
Electronics: Manufacturing flexible printed circuits, OLED displays, and thin-film batteries.
Energy Storage: Coating electrodes and separators for lithium-ion batteries and supercapacitors.
Renewable Energy: Production of photovoltaic films and flexible solar panels.
Packaging: Coating films with barriers for moisture, gas, or light protection.
Healthcare: Coating medical films, adhesive tapes, and diagnostic test strips.
Printing and Graphics: Producing high-quality, large-format graphics and specialty coatings.
Unwind and Rewind Units:
Control the movement of the substrate through the system.Include tensioners and alignment systems.
Coating Unit:
Houses the chosen coating method (e.g., slot-die, gravure).May include mechanisms for adjusting the coating width and thickness.
Vision
Drying or Curing Section: Equipped with heating or curing systems tailored to the coating material.
Vision
Web Handling System: Includes rollers, tension controls, and edge guides to ensure smooth transport of the substrate.
Vision
Quality Control Tools: In-line sensors and cameras for real-time monitoring and feedback.
Craftsmanship
The flexible substrate is fed into the machine from an unwind roll.Tension controls and alignment systems ensure smooth feeding and avoid wrinkles or misalignment.
The substrate may undergo surface treatments such as cleaning, priming, or corona discharge to enhance adhesion.
The coating material is applied to the substrate using one of several techniques, such as:
Slot-die coating: A precise, controlled method for uniform layers.
Gravure coating: Uses a patterned roller for intricate designs or textured coatings.
Knife-over-roll coating: Controls coating thickness with a blade.
Dip coating: Submerges the substrate in the coating solution and removes excess material.
The choice of method depends on the desired thickness, material properties, and application.
The coated substrate passes through a drying system to remove solvents or cure the material. Drying methods include:
Heated air ovens.
Infrared (IR) heaters.
Ultraviolet (UV) curing systems. Proper drying ensures uniformity and avoids defects such as bubbles or cracks.
Sensors and cameras check the coating for uniformity, defects, and thickness.Automated systems can adjust parameters in real-time to maintain quality.
The coated and dried substrate is rewound onto a roll for easy handling and storage.Precise tension control prevents damage or distortion during rewinding.
Specifications and Maintenance of roll to roll coating machines
Maximum Processing Width: It is often around 1,000 millimeters to 2,700 millimeters, which can be equivalent to sheet width. This number can even go up to, for example, 3,200 millimeters in the case of something like a roll to roll powder coating machine with a rotary die.
Maximum Processing Speed: This is often around 30-300 meters per minute. The maximum speed for a roll to roll coating machine can be faster than this in the case of larger industrial-scale machines with a belt conveyor system.
Coating Thickness: The thickness range of coatings that roll to roll coating machines can apply is often between 0.5 microns and 50 microns. Some machines can work with coatings as thick as 250 microns or more.
Material Compatibility: Roll coating machines are made to work with various materials, including paper, plastic, metal, fabric, and glass, to name but a few.
Film Coating Techniques: Depending the on the machine operator's preferences and requirements, a roll coater machine may be used to apply coatings using any one of the techniques mentioned above, including reverse coating, forward flow coating, gravure coating, roll spray coating, or roll painting.
Machine Materials: The feed roller, coating roller, and other principal machine parts of a roll coating machine are usually made of stainless steel or galvanized steel. Machine components from other materials may include aluminum alloy, copper, ceramic, and fluorine.
Power Requirement: The power requirement of a roll coating machine may vary, but it is somewhere between 5KW and 20KW for the standard DC motor drive power.
Moving parts and delicate parts of the machine that require lubrication usually need oil or grease that adheres to the machine parts to ensure smooth functioning and prevent wear and tear. However, it is crucial to check the manufacturer's manual and determine the best parts to be lubricated and the best lubricant to use.
FAQ
As one of the most professional roll-to-roll coating machine manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized roll-to-roll coating machine made in China here from our factory.
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