Box-type four-sided preparator

The frame-type four-sided applicator is a coating tool that uses a fixed frame to spread liquid samples onto a substrate, forming a uniform wet film. It is used in laboratories to simulate coating processes, test the leveling and hiding power of paints and inks, and is suitable for evaluating surface treatments on materials such as paper and plastics.
Selection
When selecting a frame-style four-sided Coater, it is essential to consider whether the coating thickness range matches the sample requirements. The frame material should be corrosion-resistant, and the substrate size must be compatible with commonly used glass slides or testing plates. The ease of operation influences reproducibility, while convenient cleaning and maintenance can extend the service life. The price should also align with the budget for routine testing.

Terms

Instruments

The four-sided design allows for the preparation of film thicknesses of 200μm, 400μm, 600μm, and 800μm. Made of stainless steel, it offers high coating precision, a compact size, and is suitable for various substrates and coatings with different pH levels.

$ 275.00

The stainless steel pendulum pipe is used to achieve +/- 180 degree swing, equipped with 25 water spray holes and 1-4 rpm adjustable turntable, supporting 50-100kpa water pressure adjustment, and the test water can be recycled without additional waterproof treatment.

$ 8707.00

Four-channel K-type Thermocouple with 0.5% accuracy, the insulation box can work continuously for 1 hour in a 300 degree environment, supports multi-rate sampling and 16000 Data storage, Stability is high and easy to operate.

$ 624.00

Four-channel configuration with K-type Thermocouple, the sampling rate can be adjusted from 1 second to 1 minute, and the thermal insulation performance can last for 60 minutes in a 500 ° C environment to achieve full temperature tracking monitoring.

$ 1014.00

Adopt stainless steel pendulum tube to achieve +/- 180 degree swing, equipped with 25 0.4mm nozzles, flow adjustment range 100-1000L/h, support sample holder 1-4 rpm adjustable speed, test water can be recycled.

$ 10401.00

The 4-sided design can convert the angle to obtain four wet film thicknesses, the accuracy is +/- 3μm, the stainless steel material is resistant to acid and alkali corrosion, and the conductive smear is removable for easy cleaning and maintenance.

$ 1172.00

Using silicon carbon Rod double-sided heating technology, rapid heating and high thermal efficiency; Temperature range 300~ 1300 ℃, Temperature Fluctuation +/- 5% ℃, with PID microcomputer system to ensure accurate and stable temperature, with over-rise alarm and menu lock and other safety functions.

$ 909.00

The 4-sided paint design can be prepared with four different thickness wet-film, application width 75mm, accuracy +/- 3μm, corrosion-resistant stainless steel material, easy to clean and durable.

$ 1268.00

4-Sided design can simultaneously Spreader four different thicknesses, wet film thickness range of 50-200μm, application width 150mm, accuracy of +/- 3μm, stainless steel corrosion resistance easy to clean.

$ 1531.00

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

With +/- 180 degree swing tube swing and 1~ 4 rpm adjustable sample holder speed, support 50~ 100kpa water spray pressure and 99 hour time setting, and use stainless steel structure to achieve accurate water test.

$ 6980.00

The single gap design is easy to clean, the four painted surfaces can be prepared with four different thicknesses, the application width is 50mm, the accuracy is +/- 3μm, and the acid and alkali corrosion resistance service life is long.

$ 1177.00

The 4-sided design can be prepared with four wet film thicknesses, and the conversion angle is easy to operate; the stainless steel material is resistant to acid and alkali corrosion, and the conductive film can be disassembled; the application width is 60mm, and the accuracy is +/- 3μm to ensure the accuracy of the test.

$ 1046.00

The integrated design can convert four film thicknesses, the accuracy is +/- 3μm, the stainless steel material is resistant to corrosion, and the conductive film can be removed for easy cleaning and maintenance.

$ 1117.00

Maximum temperature 1200 ℃, temperature control accuracy 1 ℃, 30 program settings automatically control thermostatic heating, high aluminum liner 4-sided heating, secondary overtemperature protection device to ensure safe operation.

$ 664.00

Articles

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This article explores the alignment accuracy control when using a four-sided preparator in conjunction with an automatic coating machine. Alignment accuracy directly affects the uniformity of the coating and the reliability of detection.
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This article compares two commonly used tools in laboratory coating film preparation: the wire rod coater and the wet film applicator.
The importance of maintaining a constant speed when using a wet film applicator for coating.
When using a wet film applicator, maintaining a constant speed during the scraping process is crucial for coating uniformity. The scraping speed directly affects the wet film thickness, and fluctuations in speed can lead to defects such as streaks and uneven thickness, compromising the repeatability and accuracy of experimental results.
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.