Extrusion-type scraper Rod

The extrusion-type coating bar forms a uniform wet film by adjusting the gap between the blade and the substrate, and is used to control the coating thickness of paints and inks. Its principle involves using mechanical pressure to extrude excess slurry, simulating industrial production coating processes in the laboratory. It is suitable for coating preparation and quality inspection on substrates such as paper and plastic films.
Selection
When selecting, consider the compatibility of the blade gap range with the required coating thickness. The material should be corrosion-resistant and of moderate hardness, while the rod diameter must be compatible with the operating equipment. The required coating precision determines the flatness standard of the blade. The characteristics of the substrate influence the surface treatment method, and the frequency of use is related to the selection of wear resistance.

Terms

Standards

Instruments

The extrusion process achieves a coating precision of 0.1 microns, with a wet film thickness of 112.0 μm. The stainless steel material ensures durability, making it particularly suitable for handling high-viscosity samples without clogging issues.

$ 160.00

The extrusion process ensures that the bar is unbroken and easy to clean, the film thickness is 45μm, the total length is 250mm, and the 304 stainless steel material is durable and reliable.

$ 157.00

Using extrusion molding process, film thickness 105 microns, application width 250mm, diaMeter 10mm, 304 stainless steel material to ensure durability and accurate Spreader effect.

$ 157.00

The extrusion molding process is used to ensure continuous wire, the film thickness is precisely controlled by 20μm, the application width is 250mm to meet various needs, and the 304 stainless steel material is durable and easy to clean.

$ 157.00

Using removable scraper and vacuum adsorption system, Spreader accuracy +/- 0.003mm, Spreader rate 5~ 180mm/s, heating temperature up to 180 ℃, improve film Stability and uniformity.

$ 7496.00

Effective Spreader width 300mm, suitable for all kinds of scraper type Film Applicators, to ensure the uniformity of Spreader, improve the film accuracy and conformity in the experiment or pRoduction.

$ 235.00

Hydraulic drive provides a range of 1-20kN force values, accuracy of 0.1N, extrusion Travel 200mm or 300mm, equipped with standard extrusion head and pressure relief device to ensure safe and stable testing.

$ 2210.00

The extrusion process ensures no broken wire, the film thickness is 110 microns, the application width is 300 mm, and the stainless steel material is durable and easy to clean, suitable for precision Spreader applications.

$ 178.00

Imported wire Rod to achieve 1 μ m High Accuracy Spreader, scraper Spreader Film thickness range of 0~ 5000 μ m, support 5~ 200mm/s stepless speed control and vacuum adsorption fixation, effectively improve film conformity and operation convenience.

$ 3494.00

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

Adopting dip coating with double roll extrusion structure, Spreader thickness 0.3-10 mm adjustable, mechanical speed 1.2m/min can be slowly adjusted, built-in glue circulation system to ensure Spreader uniformity.

$ 29120.00

Driven by hydraulic cylinder, the extrusion pressure range is 1-20kN, and the aCupuncture speed is adjustable by 10-80mm/s; the rear side of the box is equipped with an exhaust trend and pressure relief device to ensure the safety and control of the test process.

$ 2607.00

Spreader Film thickness accuracy of +/- 0.003mm, Spreader rate of 5~ 180mm/s adjustable, supports a variety of Spreader processes and substrates, can work in the glove box, to meet the laboratory R & D request.

$ 8949.00

Adopt double roll extrusion method to achieve 0.3-10 mm Spreader Film thickness, accuracy of +/- 0.05mm; Equipped with hot air circulation Oven, Temperature range room temperature to 200 ℃ +/- 3 ℃; Tension controller automatically controls the unwinding process to ensure the uniformity of Spreader.

$ 10562.00

The cold extrusion process is used to form a continuous groove to control the wet film thickness, the wet film thickness is 5 μm, the material is 304 stainless steel, and the workmanship is fine and environmentally friendly. Encasement.

$ 178.00

Articles

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.
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.
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.
Testing principle of the mandrel bending method for paint film flexibility tester
The shaft-rod bending method is a common technique for testing the flexibility of paint films. It involves bending a test panel coated with the paint film over shafts of different diameters to simulate the deformation of the coating under stress.
Paint Flexibility Tester for Measuring Bending Adaptability
The coating flexibility tester is a device used to assess whether a coating cracks or peels when bent. During testing, the coated sample is bent around mandrels of different diameters, and the surface condition is examined. The flexibility is evaluated based on the smallest mandrel diameter at which no cracking occurs.
The determination of the yield value of ink using a falling bar viscometer.
This article introduces the method of measuring the yield value of ink using a falling rod viscometer. The yield value refers to the minimum stress required for the ink to start flowing, which is crucial for print quality.
Cone Bend Test Evaluates the Ultimate Deformation of High-Elasticity Coatings
This article introduces the use of a conical mandrel bend test to evaluate the ultimate deformation capacity of highly elastic coatings. The test involves bending a coated sample around a conical mandrel of specific diameters and observing the minimum mandrel diameter at which the coating cracks or peels off, thereby assessing the material's ability to withstand deformation.
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.