Product Introduction
The coating tester is a high-precision, multifunctional, automated sample preparation platform meticulously developed by LONROY, based on rigorous laboratory standards and diverse material application requirements. By employing precise closed-loop control over three core parameters—coating speed, coating pressure, and substrate flatness—this equipment elevates the laboratory coating process from an experience-based "manual art" to a quantifiable, reproducible "exact science." Its highly versatile design meets the coating preparation needs of sectors ranging from traditional chemicals to cutting-edge new materials, providing reliable, indispensable samples for R&D and quality control.
Applications
New Energy Materials: Lithium-ion battery cathode slurries, anode slurries, conductive slurries, and sodium-ion slurries.
Traditional & Specialty Chemicals: Coatings, inks, paints, UV adhesives, pressure-sensitive adhesives, and hot-melt adhesives.
Cutting-edge Functional Materials: Perovskite precursors, nanomaterials, catalyst coatings, and gels.
Compatible Coating Substrates:
Metal Foils: Aluminum foil, copper foil.
Flexible Films: Separators (non-woven fabrics), PET.
Core Technical Advantages: Eliminating instability at the source
Precision Linear Coating System
Driven by a high-performance motor, the system enables stepless speed regulation within the 1–100 mm/s range (expandable). With a speed stability error of less than 1%, it ensures uniform linear coating, perfectly simulating various production processes.
Quantifiable Pressure Control System
Featuring a proprietary (or "precision") pneumatic/mechanical pressure application system, it enables digital setting and precise feedback of coating pressure. Users can configure quantitative parameters based on slurry rheology and film thickness requirements, completely eliminating batch-to-batch variations caused by relying on "manual feel" for pressure control.
Ultra-flat Reference Plane System
The work surface is constructed from high-grade mold-quality stainless steel. Precision-ground and specially treated, it offers exceptional flatness (≤0.002 mm) as well as superior corrosion and deformation resistance, providing the ultimate foundation for achieving uniform, consistent coatings.
2. Coating Method Parameters
2.1 Adjustable Doctor Blade
2.1.1 Thickness: 10–3000 µm (other thicknesses available upon request)
2.1.2 Blade material: Imported stainless steel
2.1.3 Blade mounting bracket: 2-in-1 multifunctional bracket
2.1.4 Blade movement: Straight push
2.1.5 Display: Digital display
2.1.6 Adjustment display precision: 0.001 mm
2.1.7 Blade straightness: ±0.0025 mm (over a 300 mm length)
2.1.8 Blade-to-base connection: Detachable type
2.2 Wire-wound Rod
2.2.1 Effective coating length: Total length 400 mm, effective length 310 mm (other specifications customizable)
2.2.2 Material: Stainless steel
2.2.3 Precision: ≤0.3 µm (300 mm)
2.2.4 Structure: Japanese OSP (extruded integrated type); US RDS (wire-wound rod)
2.2.5 Brand: Domestic, Japanese OSP, US RDS
2.2.6 Coating thickness range: 4–200 µm; 0–850 µm (special smooth rods can achieve <1 µm)
3.1 Optional Sample Clamping Methods
3.1 Vacuum Adsorption
3.1.1 Application: For securing substrates that do not lie flat on their own and rigid materials (e.g., copper foil, aluminum foil, plastic sheets, glass); facilitates easy loading and unloading
3.1.2 Material: Quenched mold steel with mirror-finish grinding
3.1.3 Vacuum suction hole diameter: 1.0 mm 0.8 mm
3.1.4 Platform flatness: ±2.5 μm (within an effective width of 300 mm and effective length of 400 mm, at heating temperatures up to 200°C)
3.1.5 Vacuum pump: External water-circulating vacuum pump
3.1.6 Power supply: 150–220 V, 50 Hz, 380 W
4.1 Base plate heating
4.1.1 Purpose: Maintains temperature during the coating process for materials that require heat to flow, ensuring the fluidity of the coating solution; also used for drying coated samples.
4.1.2 Heating plate type: Integrated heating plate
4.1.3 Heating power: 2500 W
4.1.4 Temperature range: Ambient to 200°C (adjustable)
4.1.5 Temperature uniformity: ±2.5°C
4.1.6 Platform flatness: ±2.5 μm (within an effective width of 300 mm and effective length of 400 mm, at heating temperatures up to 200°C)
4.1.7 Power supply: 220 V/50 Hz
4.2 Top heating
4.2.1 Purpose: Used for rapid sample setting or drying coated samples.
4.2.2 Heating plate type: Electric heating + laminar hot air
4.2.3 Heating power: 800 W
4.2.4 Temperature range: Ambient to 100°C (adjustable)
4.2.5 Temperature uniformity: ±2.5°C
4.2.7 Power supply: 220 V/50 Hz
4.3 Hot air knife heating
4.3.1 Purpose: Used for immediate drying of samples during the coating process and for providing an inert gas shield for the coating. 4.3.2 Heating type: Hot air
4.3.3 Heating power: 1200W
4.3.4 Temperature range: Ambient temperature to 100°C (adjustable)
4.3.5 Temperature uniformity: ±2.5°C
4.3.6 Heating method: Heat source + pressure source + air knife
4.3.7 Pressure source: Compressed air / nitrogen / other inert gases
4.3.8 Air knife velocity adjustment: Float-type flow meter
4.3.9 Adjustment method: Adjustable angle and height; mechanical lead screw adjustment
4.3.10 Air knife material: Aluminum alloy
4.3.11 Power supply: 220V/50Hz
Note: Flatness errors of the plate and straightness errors of the doctor blade do not equate to wet film coating errors, as coating viscosity and particle size also affect coating precision during the process. Additionally, coating flow characteristics and the wet-to-dry film formation ratio can mitigate machine-induced errors.
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