Cylindrical Coating Applicator

The cylindrical Coater transfers a quantitative amount of coating material onto a substrate by rolling a cylinder with surface graduations, forming a uniform wet film. It is used in laboratories to simulate the blade coating process, testing the leveling, hiding power, and color development of coatings. It is suitable for coating preparation and quality control of inks and paints.
Selection
When selecting, consider the substrate flatness and size compatibility with the Coater length. Determine the depth of the cylinder groove based on the coating thickness range. Choose an appropriate roller material according to the material viscosity. Verify the scale accuracy and the concentricity of the roller shaft to ensure uniform pressure and no deviation during operation.

Terms

Standards

Instruments

4-Sided cylindrical design Spreader four different thicknesses, application width 80mm, accuracy of +/- 3μm, stainless steel material acid and alkali corrosion resistance.

$ 1344.00

Equipped with 2 to 12mm eight diaMeter stainless steel cylindrical mandrel, in the form of hinged bending, in line with GB6742 standard, suitable for Coating bending performance testing.

$ 235.00

It can measure planar and cylindrical surface roughness, with a minimum diaMeter of 5mm and a maximum depth of 22mm, and supports a variety of Sensors to adapt to different workpiece shapes.

$ 332.00

It is suitable for cylindrical surface measurement with a radius greater than 3mm, and can be equipped with extension Rods and transfer Rods to expand the range of use to ensure the accuracy and flexibility of surface asperity detection.

$ 404.00

The cylindrical design is equipped with 4 coating surfaces, which can be coated with four preset thicknesses at one time, the application width is 80mm, the accuracy is +/- 3μm, and it is resistant to acid and alkali corrosion.

$ 1361.00

Adopting 500 * 700mm Dimensions, used with bar or Film Applicator, is conducive to the smooth and effective film, and improves the convenience of film operation.

$ 227.00

The 4-sided coating Applicator can be prepative of four wet film thicknesses, the accuracy is +/- 3μm, the application width is 80mm, the stainless steel material is resistant to corrosion, and the operation is simple only need to change the angle.

$ 1172.00

The 4-sided coating Applicator can be prepative of four wet film thicknesses, the conversion angle is easy to operate, the accuracy is +/- 3μm, the stainless steel material is resistant to acid and alkali erosion, and the application width is 80mm.

$ 1235.00

Equipped with 13 kinds of diaMeter shaft Rods, covering the range of 2-32mm, can detect 1.0mm thickness samples, evaluate the film anti-cracking performance through different bending radii, easy and accurate operation.

$ 254.00

Measurement range 0~ 1000 microns, accuracy +/- 3%, built-in V-groove Probe for rough surface and cylindrical workpiece measurement, can be used without calibrating, equipped with Ruby Probe to ensure durability.

$ 622.00

Spreader width 100mm, wet film thickness 40μm, wear resistant corrosion resistant alloy steel material, can be manually operated or with automatic Film Applicator to ensure coating conformity and Repeatability.

$ 143.00

Servo motor drive, coating speed 1~ 500mm/S adjustable, film accuracy of +/- 0.002mm, magnetic head fixed and 4-sided Applicator design to improve the convenience of operation and Spreader uniformity.

$ 2494.00

With bar and Drawdown blade two coating methods, coating speed 1-300mm/s stepless speed regulation, Blade Coating thickness 0.1-10 mm, using clamshell design for easy cleaning, equipped with High Accuracy Film Applicator to ensure Spreader uniformity.

$ 5237.00

4-Sided cylindrical design can Spreader four preset thicknesses, application width 60mm, accuracy of +/- 3μm, stainless steel material acid and alkali corrosion resistance, suitable for a variety of solid substrates.

$ 1006.00

4-Sided cylindrical design can Spreader four preset thicknesses, film accuracy of +/- 3μm, stainless steel material acid and alkali corrosion resistance, application width 60mm to adapt to a variety of substrate needs.

$ 1006.00

Articles

Comparison of Single-Column and Dual-Column Tensile Testing Machines in Plastic Film Testing Selection
This article introduces the differences between single-column and dual-column tensile testing machines in plastic film testing.
Coating Cylindrical Bending Tester for Determining the Resistance of Paint Films to Cylindrical Bending Cracking
This article introduces how the coating cylindrical bending tester measures the resistance of paint films to bending and cracking.
Pull-off Adhesion Tester for Quantitative Measurement of Varnish Adhesion.
The pull-off adhesion tester quantitatively measures the adhesion strength between a varnish coating and the substrate by vertically pulling off a test column. It is essential to ensure proper substrate preparation, complete curing of the coating, and the use of a suitable adhesive during testing.
Visual color comparison method using colorimetric tubes to determine the color phase of varnish.
Colorimetric tube visual colorimetry is a method used to determine the color hue tendency of varnish samples by directly comparing them with a standard color scale using the human eye. During operation, samples and standard liquid columns should be prepared using colorimetric tubes of consistent specifications under standard lighting conditions, and the hue differences should be observed in parallel.
Cylindrical Mandrel Bending Tester for Detecting Flexibility of Coatings
This article introduces how the cylindrical shaft bending tester detects the flexibility of paints. Flexibility refers to the ability of the paint film to resist cracking when the substrate is bent.
Adhesion Tester Pull-Off Method for Determining Adhesion Strength of Varnish
This article introduces the test method for measuring the adhesion strength of varnish using the pull-off method. It involves adhering test cylinders to the coating and substrate with adhesive, then vertically pulling them apart with an instrument to record the maximum pulling force and calculate the adhesion strength.
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.
Key Points for Controlling Coating Longitudinal Uniformity with Manual Rod Coater Constant Speed Dragging Techniques
This article discusses how to control the longitudinal uniformity of the coating by dragging at a constant speed when using a manual wire rod coater. A constant-speed drag is crucial, as it directly determines the consistency of the wet film thickness.
Derivation and Validation of the Quantitative Relationship between Wire Diameter and Wet Film Thickness in Wire Wound Coating Bars
This paper investigates the relationship between the wire diameter in a wire-wound rod coater and the wet film thickness. Theoretically, under ideal conditions, the wet film thickness is approximately half of the wire diameter.
Actual Coating Thickness Deviation of Stainless Steel Wire Rod Coaters at Different Slurry Solid Contents
This article analyzes the actual coating thickness deviation of stainless steel wire rod coaters under different slurry solid contents. The study finds that the solid content of the slurry affects its viscosity and flowability, leading to deviations in the actual coating thickness from the theoretical value.
Principles and Advantages of Ion Chromatography for Determining Anions in Water
Ion chromatography separates anions in water samples through an ion exchange column, then reduces background conductivity and enhances signals via a suppressor, and finally measures and quantifies them using a conductivity detector.
Coating film preparation techniques: comparison between wire-wound applicators and wet film preparators
This article compares two commonly used tools in laboratory coating film preparation: the wire rod coater and the wet film applicator.
Application of Wire Bar Coater in the Preparation of Coating, Ink, and Printing Samples
A wire-wound rod coater is a laboratory tool used for preparing uniform wet film coatings on flat substrates, widely applied in the production of samples in the coatings, inks, and printing industries.
The difference between a wire bar coater and a gap-type wet film applicator.
The wire-wound drawdown bar directly quantifies the coating through the gap between wires, making it suitable for thin coating preparation with high precision, particularly for low-viscosity fluids. In contrast, the gap-type wet film applicator indirectly controls film thickness through the groove depth, with the actual coating thickness significantly influenced by material properties, making it more suitable for high-viscosity coatings and thick film preparation.
Complete Guide to Methods for Determining the Flexibility of Paint Films
This article systematically outlines the core methods for determining the flexibility of paint films, including the mandrel bending test based on GB/T 1731, the cylindrical mandrel bending method according to GB/T 6742, and the conical mandrel bending method specified in GB/T 11185, providing a detailed explanation of the technical principles of each method.