Product Introduction 
The Vacuum Chuck Bottom-Heated Blade coating tester uses a flatbed coating principle with a high-precision linear motion system and adjustable blade or wire bar to precisely control wet film thickness. Vacuum adsorption securely holds substrates like copper foil, aluminum foil, plastic sheets, and glass that cannot lie flat by themselves. The bottom heating system maintains slurry fluidity during coating and directly dries specimens afterwards. A split-type mechanical zero-point adjustment ensures consistent thickness starting points. The modular quick-change base plate supports multiple materials and sizes. The 5-inch touchscreen combined with mechanical buttons enables precise operation even with gloves, significantly improving efficiency and repeatability.

Key Features 
Mechanical Fixed Zero Point The blade features a split-type mechanical hard-limit zero adjustment, quickly and precisely setting and locking the zero point for consistent thickness start every time.
Vacuum Chuck Clamping Vacuum hole diameter 1mm/0.8mm optional, external water-circulation pump, suitable for copper foil, aluminum foil, plastic sheets, glass, and other rigid or hard-to-flatten substrates.
Bottom Heating System 2500W integrated heating plate, ambient to 200°C with ±2.5°C uniformity, suitable for heated coating and specimen drying.
Multiple Coating Methods Supports adjustable blade, wire bar, and four-sided blade; wire bar coating precision 0.001mm with optional high-precision imported bars, adapting to different slurries and thicknesses.
Touchscreen + Physical Buttons Critical functions can be operated via mechanical buttons, allowing accurate operation even with dirty gloves, avoiding frequent screen cleaning and enhancing convenience and durability.
Modular Quick-Change Base Plate Base plates of different materials or specifications can be easily replaced, achieving one machine for multiple uses, saving lab space and cost.
High-Precision Adjustable Blade Mold steel blade, thickness range 5-10000 μm (customizable), adjustment resolution 0.001 mm, straightness ±0.0025 mm, ensuring uniform and accurate coating.
Stepless Variable Speed Coating speed 1-100 mm/s steplessly variable, accurately simulating different process conditions with excellent repeatability.

Main Technical Specifications 

Adjustable Blade Parameters 

Bottom Heating Parameters 

FAQ
1. What is the difference between vacuum adsorption and normal clip clamping?
Vacuum adsorption is suitable for substrates that cannot lie flat by themselves and rigid materials such as copper foil, aluminum foil, plastic sheets, and glass. It uses vacuum suction to hold the substrate flat, preventing wrinkling or movement during coating. Normal clips are suitable for thicker or self-flattening flexible substrates.
2. How is the blade zero point set?
The blade uses a split-type mechanical hard-limit zero adjustment mechanism. Loosen the lock, rotate the zero adjustment screw until the blade lightly touches the base plate, then lock the zero. Thickness is then adjusted digitally from this zero point, ensuring consistent starting position for every coating.
3. How is the bottom heating temperature and uniformity?
The bottom heating uses an integrated heating plate with 2500W power, temperature range from ambient to 200°C, and uniformity of ±2.5°C within an effective width of 300mm and length of 400mm, suitable for heated coating and drying.

4. How to choose between wire bar and blade coating?
Wire bar coating is suitable for rapid sampling of low-viscosity fluids with 0.001mm precision and optional imported high-precision bars. Blade coating has a wider applicability, especially for medium to high-viscosity slurries and precise thickness control. Choose based on slurry viscosity and target thickness.
5. Can the base plate be replaced?
Yes. A modular quick-change design allows users to replace base plates of different materials (glass, PET, copper foil, etc.) or sizes, achieving multiple uses with one machine.
6. What coating sizes are supported?
Standard effective coating sizes are 200×300 mm and 300×400 mm. Other sizes can be customized. Users can choose based on experimental needs or contact us for non-standard dimensions.

After-Sales Service 
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Vacuum Chuck Bottom-Heated blade coating tester comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and coating process consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.