Tetrahedral Coater

The tetrahedral applicator creates a precise quantitative gap through its four inclined surfaces, forming a uniform wet film on the substrate during the coating process. It is used in laboratories to simulate roller coating techniques, control coating thickness, and is suitable for ink opacity tests and paper coating experiments.
Selection
Select the groove depth specification according to the testing standards, match the gap accuracy based on the sample viscosity, choose stainless steel or plastic material considering the substrate flatness, and consider cleaning convenience as it affects the reuse effectiveness.

Terms

Instruments

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

Contains 1026 standard Colors, conforming to the National Standard for Architectural Color Representation Methods, displaying 6 color samples per page, suitable for architectural color selection and management.

$ 130.00

The dust density is measured by natural accumulation method, the diaMeter of the outflow port is 12.7mm, the funnel taper is 60 ° +/- 0.5 °, to ensure the stability of the free fall process, the volume of the measuringflask is 100mL, and the material is durable and easy to clean.

$ 235.00

Using parallel illumination hemispherical scattering integrating sphere photoelectric receiving mode, the accuracy of light transmitance and haze display is 0.01%, equipped with thin film magnetic fixture and liquid sample Cup, and supports 2000 sets of data storage.

$ 3882.00

Driven by stepper motor, folding speed 10-200cpm, adjustable test angle 10-180 °, with automatic counting and disconnection automatic stop function to ensure Test accuracy.

$ 1776.00

High sampling accuracy, parallelism ≤ 0.015mm, thickness range of 0.1~ 1.2mm, suitable for a variety of paper strength tests to ensure accurate and reliable detection data.

$ 687.00

The device places the test plate in parallel in the wind tunnel, the wind speed control accuracy is 3 +/- 0.3m/s, the drying time is automatically controlled, and the surface crazing can be visually inspected, which is suitable for the evaluation of coating anti-crack performance.

$ 490.00

Adopt natural convection cycle to avoid sample volatilization, stainless steel liner is easy to clean, temperature control accuracy of +/- 0.5 ℃, optional multi-stage programming and independent temperature limit alarm system.

$ 419.00

Parallel light path design can measure 100mm thickness material, accuracy +/- 1%, resolution of 0.001%, support field and fixed station two Measurement mode, suitable for a variety of Optical inspection material detection.

$ 390.00

Using parallel illumination hemispherical scattering integrating sphere photoelectric receiving mode, the light transmitter and haze measurement accuracy are 0.01%, support U disk storage and USB communication, equipped with thin film magnetic fixture and liquid sample Cup.

$ 2888.00

The device provides 3 +/- 0.3m/s wind speed through axial flow fan in wind tunnel, Timer delay range of 0.01 seconds to 99 hours 99 minutes, can automatically control drying time and eye test plate surface crazing, support parallel test.

$ 364.00

The natural convection cycle design ensures uniform temperature, temperature control accuracy of +/- 0.5 ℃, timing function up to 9999 minutes, suitable for drying, sterilizing and other applications.

$ 1569.00

Using natural convection design to ensure uniform temperature, Temperature range RT + 10~ 400 ℃, Temperature resolution 0.1 ℃, with timing function and multiple alarm system to ensure safe and reliable operation.

$ 598.00

The specimen is fixed with a bilateral fixture structure, with a maximum cutting section of 100 × 120mm, a transparent observation window and a powerful exhaust device. After cutting, the surface of the specimen is bright and flat without burns.

$ 3785.00

Spreader can be 30/60/90/120μm four thicknesses at the same time, using a combined quadrilateral structure, application width 160mm, stainless steel material to ensure durability and accurate film effect.

$ 315.00

Articles

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.
Alignment Accuracy Control Method for Four-Sided Preparator When Used with Automatic Coating Machine
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.
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.
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.
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.
Wire rod Applicator: Principles, Applications, and Selection Guide - A Precision Coating Tool
This article provides a detailed introduction to the working principles of a Wire rod Applicator, including the mechanism by which it controls wet film thickness through the gap between stainless steel wires. It elaborates on its wide range of applications in fields such as coatings, inks, and lithium batteries, and summarizes its technical advantages, including precise control and ease of operation.