Bar-Type Coater

The rod Coater is constructed from a stainless steel rod wound with metal wire, which transfers the coating evenly onto the substrate surface through the rotation of the rod. It is used in laboratories to simulate the blade coating process and control wet film thickness. It is suitable for applications such as ink hiding power testing and paint color development evaluation.
Selection
Select the wire diameter specification based on the surface roughness of the test substrate, as the wire diameter determines the wet film thickness. Consider matching the winding gap with the paint viscosity; choose a thicker wire diameter for high-viscosity paints. Select the rod length according to the testing standards, with common lengths ranging from 100mm to 300mm. Pay attention to the corrosion resistance of the rod material; stainless steel is suitable for most solvent-based paints.

Terms

Standards

Instruments

Adopt bar and drawdown blade composite coating method, bar accuracy +/- 0.005mm, drawdown blade thickness range 0.1-10 mm, Vacuum Area 1280 * 960mm, coating speed 1~ 300mm/s stepless speed regulation, suitable for wide voltage input.

$ 19438.00

The Spin Coater is controlled by touch screen, the acceleration range is 100~ 4000rpm/s, and the speed can be automatically corrected by A/K selection. The motor torque is large and the operation is smooth, which is suitable for the assembly line process.

$ 2494.00

Using bar and Drawdown blade double coating method, Spreader accuracy +/- 0.003mm, Temperature Uniformity +/- 1 ℃, with Vacuum chuck and heating function, clamshell type Drawdown blade head is easy to clean, suitable for High Accuracy film prepative.

$ 11208.00

Drawdown Bar & blade double coating method, coating speed 1-300mm/s stepless speed regulation, bar accuracy +/- 0.001mm, clamshell Drawdown blade design is easy to clean, equipped with color LCD Touchscreen easy to operate.

$ 3785.00

Adopt bar coating method, coating speed 1~ 300mm/s stepless speed regulation, film thickness control accuracy of +/- 0.001mm, equipped with Vacuum chuck and heating function, support Spreader length and speed free adjustment, suitable for a variety of substrate coating.

$ 3462.00

With bar and Drawdown blade two Spreader mode, using clamshell Drawdown blade head and new bar Installation method, easy to clean. Spreader speed and length can be freely adjusted, film thickness control accuracy is high, suitable for Glass, cardboard and other substrates.

$ 2978.00

Adopt bar coating method, coating speed 1~ 300mm/s stepless speed regulation, bar accuracy +/- 0.001mm, equipped with High Accuracy imported bar and Glass table, support free adjustment of application length, suitable for uniform film of various substrates.

$ 1848.00

The application width is more than 280mm, the thickness range of Spreader is 2um-1.1mm, and the manual drag is used to control the speed of Spreader to ensure the uniformity and accuracy of Spreader.

$ 6528.00

Adopt new bar Installation method, coating speed 1~ 300mm/s stepless speed regulation, bar film accuracy +/- 0.003mm, equipped with high Smoothness Glass countertop and Touchscreen control, support a variety of Spreader paraMeters free adjustment.

$ 4914.00

Adopt bar coating method, coating speed 1~ 300mm/s stepless speed regulation, film accuracy +/- 0.001mm, equipped with High Accuracy imported bar and Glass table, support application length and speed free adjustment, suitable for a variety of substrate film.

$ 1687.00

Driven by servo motor, coating speed 1~ 300mm/s stepless speed regulation, bar accuracy +/- 0.001mm, equipped with High Accuracy imported bar and Glass table, support free adjustment of application length, suitable for a variety of substrate films.

$ 2171.00

Spreader accuracy +/- 0.003mm, Spreader thickness range 0.001~ 10mm adjustable, with Vacuum chuck and heating function, support bar and drawdown blade two coating methods to ensure Spreader uniformity and repRoducibility.

$ 8465.00

Adopt bar and drawdown blade double coating method, coating speed 1-300mm/s stepless speed regulation, Spreader accuracy bar +/- 0.001mm, drawdown blade +/- 0.003mm, equipped with clamshell drawdown blade for easy cleaning, support heating temperature to 180 ℃ and Vacuum chuck fixing.

$ 7335.00

Adopting direct temperature control technology, the heat exchange speed is only 1-3 seconds, the speed range is 100-3000rpm, and it has 5 speed adjustment and 12 groups of parameter memory functions to improve the stability of the coating.

$ 5399.00

Speed range 0~ 10000rpm, heating temperature up to 200 ℃, using touch screen preset uniform glue Linear dispersion, support diaMeter ≤ 8 inches substrate, simplify the operation process to improve the uniformity of film formation.

$ 6205.00

Articles

How to choose a laboratory coater? Which one should you buy: wire bar, scraper, or slot die?
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.
Laboratory rod coater for submicron wet film preparation of photoresist.
This article introduces the process of using a laboratory bar coater to prepare submicron wet films of photoresist.
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.
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.
The laboratory coating machine easily coats various aqueous and oily slurries.
The laboratory film applicator is a precision instrument used to prepare uniform coatings on substrates, primarily operating on the principle of a blade or wire-wound rod. It allows adjustment of parameters such as speed and pressure to control coating thickness.
How to achieve high uniformity in silver nanowire transparent conductive films through wire rod coating
This article introduces how to prepare uniform silver nanowire transparent conductive films using the wire rod coating technique. These films, which use silver nanowires as the conductive material, exhibit high transparency and conductivity, making them suitable for applications such as touch panels.
Common Troubleshooting for Wire Bar Coater: Solving Issues of Streaking and Uneven Thickness
This article mainly introduces solutions to two common faults in the operation of the wire rod coater—coating streaks and uneven coating thickness.
Blade Coating VS Wire Rod Coating: The Precision Battle and Selection Guide in the Lab
Blade coating and wire bar coating are two commonly used physical coating methods in laboratories. When selecting between them, factors such as material properties, target thickness, and experimental conditions must be considered. Both methods have their own advantages and can be flexibly chosen or used to validate each other based on specific requirements.
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 working principle of laboratory wire rod coaters and methods for controlling coating thickness
The laboratory wire rod coater is a precision instrument used to prepare uniform, thickness-controllable wet film coatings on substrate surfaces. Its core components include a coating rod, a flat coating platform, clamps for securing the substrate, and a mechanical system that drives the coating rod to move at a constant speed.
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.
The difference between a wire-wound rod coater and an extrusion coating rod
This article primarily compares the technical differences between wire-wound and extrusion coating rods. Although they are interchangeable in most scenarios, there are subtle variations in liquid loading capacity due to their distinct groove principles.
How to Prepare Precise Film Layers Using a Laboratory Film Coating Machine
Precise film preparation can effectively eliminate human operational errors by rationally selecting applicators (wire rods or blades) that match the material's rheological properties and precisely controlling coating speed, environmental temperature and humidity, and substrate conditions.