Spray Coating Metering Rod

The spray metering rod is a device that precisely transfers coatings by controlling the volume of grooves on the rod body. Its principle involves rotating the rod to fill the grooves with coating, forming a uniform wet film on the substrate surface. Its function is to simulate the spraying process in the laboratory for testing coating properties such as hiding power and leveling. Applications include evaluating ink printability and verifying coating effects on plastic surfaces.
Selection
When selecting a coating applicator rod, it is essential to consider the compatibility between the substrate surface characteristics and the paint viscosity. The diameter of the rod influences the coating speed, with stainless steel being suitable for conventional paints, while the hard chrome-plated version offers better wear resistance. The groove depth determines the wet film thickness, and the rod specifications should be chosen according to testing standards. After use, it is necessary to clean the grooves with solvent to maintain cleanliness.

Terms

Standards

Instruments

Adapted diaMeter 16mm formed Metering Rod, the total length of 2000mm, through the special structure to correct the straightness of the Rod body, to ensure stable rotation and full contact with the substrate, improve the thickness control accuracy of Spreader.

$ 590.00

Using Metering Rod & doctor blade double Spreader mode, Spreader accuracy up to +/- 0.001mm, Spreader rate 5~ 200mm/s adjustable, fixed substrate by vacuum adsorption to ensure film uniformity and repRoducibility.

$ 2736.00

Spreader speed 5~ 180mm/s, Spreader area 400 * 300mm, using Metering Rod & doctor blade and vacuum adsorption system to ensure Spreader uniformity and Stability, can be customized automatic inking function.

$ 9755.00

Using Metering Rod & doctor blade dual Spreader method, Spreader accuracy is up to +/- 10μm, Film thickness range is 0-5000μm. Spreader rate and stroke are controlled by vacuum adsorption to fix the substrate, and the touch screen can effectively improve film repRoducibility and conformity.

$ 3462.00

The formed pRoduction process ensures that the grooves are not blocked and easy to clean, the Spreader wet film thickness is 50 μm with high accuracy, the stainless steel material is durable, and supports manual and Automatic Film Applicators.

$ 99.00

Wet film thickness 60 μ m, application width 210mm, stainless steel material formed pRoduction, groove is not blocked easy to clean, Spreader accuracy high mass stability.

$ 99.00

Using formed pRoduction process, wet film thickness 15 microns, application width 320mm, groove design is not easy to block and easy to clean and maintain.

$ 114.00

Equipped with double spray guns to achieve uniform lame plating, the lifting range of the spray gun is adjustable from 10-500mm, the integrated air filtrate adjustment system supports magnetic or vacuum panel fixing, and improves the coating test Repeatability.

$ 67560.00

Using stainless steel material formed process, application width 210mm, groove design is not easy to block, support 4-190 micron wet film thickness range, meet the needs of laboratory manual or automatic Spreader.

$ 99.00

Using formed pRoduction process, wet film thickness of 25 microns, application width 320mm, groove design is not easy to block and easy to clean, to ensure that Spreader accuracy is stable and reliable.

$ 114.00

Using stainless steel material formed pRoduction, wet film thickness 180 μ m, application width 320mm, groove design is not easy to block and easy to clean, Spreader accuracy is high.

$ 114.00

The formed pRoduction process ensures that the grooves are not blocked and easy to clean, the wet film thickness 45 μm Spreader accuracy is high, the diaMeter is 10mm, the total length is 240mm, and the application width is 210mm.

$ 99.00

Using stainless steel material formed process, wet film thickness 90 μ m, groove design is not easy to block and easy to clean, Spreader accuracy is high, support a variety of specifications customization.

$ 99.00

Wet film thickness 110 μ m, application width 210mm, stainless steel material formed pRoduction process, groove is not blocked easy to clean, Spreader accuracy high mass stability.

$ 99.00

Wet film thickness 45μm, main Rod diaMeter 10mm, effective application width 600mm, using SUS304 material, Coating Weight, length and surface preparation can be customized, suitable for a variety of Spreader conditions.

$ 267.00

Articles

Using a spray coater to achieve the preparation of functionally graded films.
This paper introduces a method for preparing functionally gradient films using a spray coating machine.
Application of Spray Coating Machines in the Encapsulation of Flexible Electronic Devices
This paper introduces the application of spray coating machines in the encapsulation of flexible electronic devices.
Differences in Uniformity Between Spray Coating and Spin Coating Methods
This article compares the differences in uniformity between the spray coating and spin coating methods in the preparation of coatings.
Sand Abrasion Tester for detecting the wear resistance of thermal spray coatings
This article introduces the method of using a sand falling tester to evaluate the wear resistance of thermal spray coatings. Thermal spray coatings are widely used in fields such as machinery and aviation, with wear resistance being a critical performance indicator.
Hall flowmeter measures the flowability of spray powder
This article introduces how a Hall flowmeter measures the flowability of spray powder. It uses a standard funnel to measure the time required for a certain mass of powder to flow out under gravity—the shorter the time, the better the flowability.
Tap density tester evaluates the accumulation characteristics of sprayed powder.
This article introduces how to use a tap density tester to evaluate the packing characteristics of spray powders. The tap density tester simulates vibration to densely pack the powder and measures the mass per unit volume, thereby obtaining the tap density.
Laser particle size analyzer measures the particle size distribution of spray powder.
Laser particle size analyzers measure the particle size distribution of sprayed powder based on the principle of light scattering, which is critical for coating uniformity and adhesion. During measurement, the powder must be dispersed in a suitable medium to avoid agglomeration, and tests should be repeated to ensure accuracy.
Film Coating Machine vs. Spray Gun: The Impact of Different Coating Methods on Coating Performance Evaluation
This article compares two laboratory film preparation methods: the film applicator and the spray gun. The film applicator can produce coatings with uniform thickness and high reproducibility through blade coating, making it suitable for precise formulation studies. The spray gun simulates actual spraying, but the film thickness uniformity is poorer, and the surface may be rougher.
Graphene Transparent Conductive Film Coating Process and Coater Selection
This article introduces the coating processes and coating machine selection for graphene transparent conductive films. The coating processes primarily include blade coating, slot-die coating, spin coating, and spray coating, with choices depending on the properties of the dispersion, the type of substrate, and the production scale.
The role of the coating machine in the preparation of fuel cell membrane electrode assemblies
The film coating machine is a key equipment for preparing the membrane electrode, the core component of fuel cells. It evenly coats a catalyst-containing slurry onto a substrate using techniques such as blade coating, slot-die extrusion, or spraying, forming a catalytic layer ranging from a few micrometers to several tens of micrometers in thickness.
What are some cost-effective alternatives to roll-to-roll coaters for the early stages of flexible film R&D when the investment is too high?
The investment in roll-to-roll coating machines is too high. What are some cost-effective alternatives for the early stages of flexible film research and development? Among blade coating, spin coating, and spray coating, which one would you choose?