Blade Fineness Gauge

The fineness gauge uses a graduated wedge-shaped groove in conjunction with a scraper to draw a thin film on the surface of the coating. By observing the scale value corresponding to the location where particles appear, the dispersion degree of pigment or filler particles is determined. It is used in the production control of coatings and inks to ensure the grinding fineness of raw materials and guarantee coating uniformity.
Selection
When selecting, consider matching the viscosity range of the material being tested with the blade material. Choose stainless steel for conventional samples and alloy for corrosive samples. The measurement range should cover 0–100 μm according to industry standards, with accuracy meeting ±2.5 μm. The operating environment determines whether to use a handheld or benchtop structure, and standard test plates should be used to ensure the smoothness of the coating.

Terms

Standards

Instruments

Stainless steel is more durable, with a length of 75mm, suitable for all models of GrindoMeter, and meets ASTM D1210, DIN 53203 and other standards to ensure accurate fineness measurement.

$ 549.00

The kit can realize automatic grinding fineness Gauge operation, improve test Repeatability, suitable for standard scraper fineness Meter supporting use, simplify the experimental process.

$ 1623.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-25μm, ergonomic design, easy to hold, suitable for particle size and fineness of grinding detection.

$ 1157.00

Made of Hardness 52 +/- 2HRC wear and corrosion resistant alloy steel with 0-100μm range and 5μm Graduation, the single-channe design meets several international standards for a wide range of material particle Fineness measurement.

$ 172.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-250μm, ergonomic design for easy holding, suitable for particle size and fineness of grinding inspection.

$ 1531.00

Double groove design can achieve rapid fineness detection, Measurement range 0~ 100μm, accuracy +/- 2 microns, wear-resistant and anti-corrosion stainless steel material, suitable for a variety of material fineness determination.

$ 1086.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-15μm, ergonomic design, easy to hold, suitable for particle size and fineness of grinding detection.

$ 1157.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-100μm, suitable for particle size and fineness of grinding inspection, ergonomic design for easy grip.

$ 1157.00

Specially designed for fineness detection, using precision drawdown blade structure, with 0-50 μm range, improve coating inks sample scraping uniformity and measurement Repeatability.

$ 89.00

Measurement accuracy of +/- 2 microns, wear resistance and corrosion resistance, handheld operation, suitable for rapid detection of various material fineness.

$ 1086.00

Tool steel hardened and polished, accuracy +/- 2μm, range 0-50μm, ergonomic design for easy holding, suitable for particle size and fineness of grinding inspection.

$ 1157.00

Made of Swiss tool steel, Abrasion Resistance and corrosion resistance are excellent, accuracy reaches +/- 2 microns, wide groove design is easy to handle, suitable for a variety of material fineness detection.

$ 1323.00

Double groove structure can be measured twice at the same time, Measurement range 0~ 25μm, accuracy +/- 2μm, hardened stainless steel material wear and corrosion resistance, suitable for a variety of material fineness detection.

$ 1086.00

Made of Swiss 1.2805 tool steel, Abrasion Resistance and corrosion resistance are excellent; the accuracy reaches +/- 2 microns, the groove width is 37mm, and the graded slope design is easy to quickly read the fineness value.

$ 1323.00

Made of wear-resistant and anti-corrosion Swiss tool steel, the accuracy reaches +/- 2 microns, and the wide 37mm groove design is easy to handle, suitable for rapid determination of fineness of various materials.

$ 1323.00

Articles

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This article introduces three methods for selecting laboratory coating machines: wire bar coating is suitable for low-viscosity coatings, offering low cost and simple operation; blade coating is ideal for medium-to-high viscosity slurries or those containing particles, with a wide range of film thickness control; slot-die coating provides the highest precision and is suitable for high-end applications such as electronic films.
The effect of the substrate fixing method on coating uniformity in a vacuum adsorption blade coating tester.
This article discusses the impact of different substrate fixing methods on coating uniformity in a vacuum-assisted knife-over-roll coating tester. It compares four methods—vacuum adsorption, electrostatic adsorption, mechanical clamping, and adhesive fixing—focusing on their mechanical principles and limitations.
Comparison of Coating Accuracy between Laboratory Blade Coater and Slot Die Coater
This article compares the coating precision of blade coaters and slot-die coaters in the laboratory. Blade coaters are suitable for thick coatings, with simple operation but relatively large uniformity errors; slot-die coaters offer higher precision and better uniformity for thin coatings. The choice of equipment depends on coating thickness and precision requirements.
Application of Laboratory Scraper Heating Coating Machine in Hot Melt Adhesive Coating
This article introduces the application of a laboratory blade heating coating machine in hot melt adhesive coating. It first explains the coating process and principles, including three stages—heat conduction, fluid shear, and surface wetting—as well as the influence of temperature on adhesive viscosity.
Application of Gravure Printing Proofer in Water-based Ink Proofing and Pinhole Defect Evaluation
This article introduces how the gravure printability tester is used for water-based ink proofing and pinhole defect evaluation. Water-based inks are environmentally friendly but prone to tiny pinhole defects. The instrument enables standardized sample preparation and reduces human interference by controlling parameters such as cell depth and doctor blade angle.
Standard ink film preparation with a blade coater before tack testing of offset printing inks.
This article introduces the method of preparing a standard ink film using a blade coater before testing the tackiness of offset printing inks. It explains the principle of controlling ink film thickness by adjusting the blade gap and details the operational steps from securing the substrate and applying the ink to completing the coating process.
Study on the Dispersion Uniformity of Blade Coating Machines in High-Load Electrode Slurry Coating
This article investigates how to optimize the dispersion uniformity of coatings by adjusting process parameters when using a blade coater to handle high-load electrode slurries.
The wire bar coater with heating and vacuum adsorption is used for the preparation of perovskite solar cell layers.
This article introduces a new technique for preparing the light-absorbing layer of perovskite solar cells: a wire-bar coater with heating and vacuum adsorption capabilities.
Heating and blade coating of gel electrolyte films for zinc-ion batteries.
This article introduces the heating doctor-blade coating method for preparing gel electrolyte films in zinc-ion batteries. The method involves spreading a slurry onto a substrate using a doctor blade, followed by heating to evaporate the solvent and form a film.
Blade-coating preparation of hole transport layers for perovskite solar cells.
This article introduces the method of preparing the hole transport layer for perovskite solar cells using the doctor-blade coating technique. The doctor-blade coating method involves spreading the solution evenly on the substrate with a blade to form a thin film, making it suitable for large-scale production.
Preparation of composite films by coating mechanism for electrical performance experimental characterization
This article introduces the method of preparing composite films using a film coating machine and testing their electrical properties. The film coating machine evenly spreads the slurry with a blade, controlling thickness and uniformity. The preparation process includes raw material preparation, substrate treatment, coating, and curing.
Operating Specifications and Result Interpretation of Paint Fineness Gauges
The fineness gauge is used to measure the dispersion of particles in paint. During operation, the sample should be applied to the groove under standard conditions, and a scraper is used to spread it evenly to form a wet film. The particle visibility is then observed under appropriate lighting, and the fineness value is read from the corresponding scale.
Application of Two-Step Method with Pre-Coating and Fine-Coating in Eliminating Bubble Defects for Dual-Blade Coater
The dual-blade coater employs a two-step method of pre-coating and precision coating to eliminate bubble defects during the coating process. In the pre-coating stage, high shear force is applied to break the bubbles in the slurry, causing them to rupture and rise to the surface. The precision coating stage then precisely controls the coating thickness, removing any remaining bubbles to form a uniform wet film.
Experimental Verification of Stroke Accuracy on Coating Thickness Repeatability for Desktop Automatic Film Applicators.
This article investigates the influence of the stroke accuracy of a desktop automatic coating machine on the repeatability of coating thickness. The experiment monitored the blade position deviation using high-precision sensors and measured the coating thickness, revealing that smaller stroke deviations lead to better repeatability in coating thickness.
Scraper Fineness Gauge for Determining the Fineness of Paste Inks
The Scraper Fineness Gauge is used to measure the dispersion degree of pigment particles in products such as paste inks. Its principle involves scraping a film on a scraper plate with wedge-shaped grooves and observing the scale at which particles appear to assess the fineness, with the result expressed in micrometers.