Adjustable Rod Coater

The adjustable wire-wound rod Coater controls the amount of coating transferred through spiral grooves to form a uniform wet film on the substrate surface. It is used in laboratories to simulate the blade coating process and is suitable for viscosity testing of inks and coatings, as well as paper coating preparation. During operation, it is pulled at a constant speed, with the groove depth determining the coating thickness.
Selection
When selecting, consider the compatibility of the substrate surface characteristics with the coating viscosity and the specification of the wire rod. The wire diameter determines the wet film thickness, with stainless steel being suitable for conventional samples, while special coatings may opt for Teflon material. It is necessary to verify the precision of the wire rod and its compatibility with the sample width, as the ease of cleaning and maintenance affects the effectiveness of repeated use.

Terms

Instruments

Adopt electric push Rod to drive Spreader movement, adjustable speed range of 2-200mm/s, temperature accuracy +/- 3 ℃, support Vacuum chuck and electric heating function, improve Spreader uniformity and operation convenience.

$ 2494.00

Drawdown blade and bar coating method, with Vacuum chuck function, high film thickness control accuracy, application length and speed can be adjusted freely, easy to clean, suitable for a variety of substrates.

$ 11692.00

Spreader movement driven by electric push Rod, adjustable speed range of 2-200mm/s, equipped with Vacuum chuck table to effectively fix the substrate, Operating interface intuitively simplifies the process, improves Spreader accuracy and efficiency.

$ 2010.00

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

The application width can be adjusted freely, and the drawdown blade Coater can be adapted to meet different experimental testing needs and realize flexible film operation.

$ 154.00

Adopting double roll extrusion method, Spreader Film thickness range 0.3-10 mm adjustable, accuracy up to +/- 0.05mm, equipped with handwheel adjustment and dial indicator display, dip plate is 304 stainless steel material.

$ 4108.00

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

Drawdown blade and bar two coating methods, with Vacuum chuck function, high film thickness control accuracy, application length and speed can be adjusted freely, clamshell Drawdown blade design is easy to clean, suitable for film and other soft substrate uniform Spreader.

$ 11046.00

Support bar and Drawdown blade two coating methods, suitable for different viscosity materials. Equipped with heating and Vacuum chuck function, servo motor to ensure stable operation. Drawdown blade film thickness control accuracy is high, uniform film.

$ 6205.00

Adjustable application width, with automatic Spreader function, easy to operate, Repeatability is good, suitable for a variety of samples of laboratory prepative.

$ 4914.00

Drawdown blade and bar two coating methods, support speed and length adjustment, high film thickness control accuracy, and with Vacuum chuck function, easy to handle soft substrate, easy to clean.

$ 7496.00

Utilizing a dual coating method with wire rod and doctor blade, the coating speed is adjustable from 1 to 300 mm/s with stepless speed control, ensuring high precision in film thickness control. Equipped with vacuum adsorption and heating functions, the temperature uniformity reaches ±1°C. The flip-top design facilitates easy cleaning.

$ 24279.00

Maximum Spreader width up to 1000mm, Spreader speed 1-10m/min adjustable, support unlimited length Spreader and automatic winding, forward and reverse stepless speed change, discharge and receiving reel tension adjustable, heating Rod and glue slot can be quickly disassembled to clean up residual glue.

$ 29120.00

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

High strength aluminum alloy frame, Test Travel adjustable, Test speed 0-30cm/sec adjustable, Test times up to 999999 automatic shutdown, inspection Rod clearance loose and other faults.

$ 3530.00

Articles

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.
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.