Doctor Blade Roll Coater

The blade roller Coater controls the coating thickness through the gap between the blade and the roller. The rotation of the roller drives the substrate, and the blade scrapes off excess coating to form a uniform layer. It is used for quantitative coating on substrates such as paper and film, enabling surface modification and functional layer coverage.
Selection
Select the roller diameter based on the substrate thickness, adjust the blade angle according to the coating viscosity, and determine the equipment size based on the production speed. Match the oven length according to the drying characteristics of the coating, and choose a pneumatic or mechanical blade control system based on the coating precision requirements.

Terms

Standards

Instruments

Using roll-to-roll continuous solution pool mode, the width of the substrate is 200mm, and it is dried by 130 ° C hot air Oven; the solution pool can be lifted and heated, and PLC control ensures stable operation, which is suitable for a variety of substrate processing.

$ 48484.00

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

Using a roll-to-roll continuous solution cell process, the substrate is crystallized or attached under specific conditions. Equipped with a 130 ° C hot air Oven drying system, the effective application width is 180mm, and the mechanical speed range is 0.1-300 mm/min. The solution cell has a lifting function and a separate heating design to ensure process Stability and operation safety.

$ 48484.00

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

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

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

Using D type High Accuracy Impact device, Measurement range 30~ 110HS, can detect cast steel roll, forged steel roll and cast iron roll three kinds of hardness of materials, with anti-Impact and anti-electromagnetic interference ability, support 7 kinds of Hardness standard automatic conversion.

$ 554.00

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

Spreader accuracy of +/- 0.003mm, Film thickness range of 0~ 10mm, equipped with automatic feeding system and vacuum adsorption, to achieve stable Spreader and efficient operation.

$ 8949.00

Using dip coating process with double roll extrusion residual material, Spreader thickness adjustable, mechanical speed 0.1-1 m/min, Oven temperature 50-150 ℃ +/- 3 ℃, suitable for a variety of Coating Spreader.

$ 21051.00

Spreader speed 5-180mm/s adjustable, wire Rod Spreader accuracy +/- 0.001mm, using touch screen control and mechanical fixture to ensure stable and reliable Spreader process.

$ 2010.00

Using the immersion coating method, Spreader thickness 0.3-10 mm adjustable, mechanical speed 1.2m/min, built-in glue circulation system to ensure uniform and stable Spreader.

$ 32347.00

Adopt Cr12 steel roll, Hardness reaches HRC52 °~ 58 °, surface roughness 0.2~ 0.1, speed ratio 1:3:9, easy to operate and low noise, suitable for efficient grinding of various materials.

$ 743.00

Laminating speed 1~ 10m/min, laminating accuracy 0.5mm, roll to roll Laminating design, equipped with automatic deviation correction device and split drying, suitable for a variety of non-elastic material Spreader.

$ 11692.00

Articles

How to choose a laboratory coater? Which one should you buy: wire bar, scraper, or slot die?
This article introduces three methods for selecting laboratory coating machines: wire bar coating is suitable for low-viscosity coatings, offering low cost and simple operation; blade coating is ideal for medium-to-high viscosity slurries or those containing particles, with a wide range of film thickness control; slot-die coating provides the highest precision and is suitable for high-end applications such as electronic films.
Comparison of Coating Accuracy between Laboratory Blade Coater and Slot Die Coater
This article compares the coating precision of blade coaters and slot-die coaters in the laboratory. Blade coaters are suitable for thick coatings, with simple operation but relatively large uniformity errors; slot-die coaters offer higher precision and better uniformity for thin coatings. The choice of equipment depends on coating thickness and precision requirements.
How to Coat High-Viscosity Slurry – Parameter Setting Tips for Blade Coaters
This article primarily discusses the parameter setting techniques for high-viscosity slurries on blade coaters. High-viscosity slurries exhibit characteristics such as shear thinning, so it is essential to leverage shear effects during coating to facilitate slurry spreading. After coating, the viscosity should recover quickly to prevent sagging.
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?