3-roll comma transfer intermittent/continuous coater specially customized for lithium lab & pilot production, ideal for Li-ion, supercapacitor and Ni-based battery electrode coating with industrial-level coating precision and integrated drying system.

Key Features

Double servo lead-screw control for the glue push roller adjusts the trailing edge for slurries of different viscosities.
Freely switchable between continuous and intermittent coating modes.
Substrate tension control ensures stable web transport; equipped with an edge correction unit.
Hot air oven with top & bottom dual air supply for superior drying performance.
Analog power heating control delivers high precision and long service life.
Inlet & outlet air volume regulated via frequency converter, accurately adjustable on touchscreen.
Closed-loop control with encoder data acquisition for precise coating length.
Three-roll transfer coating offers a wide processing window.
Comma blade metering with a precision adjustment mechanism for high coating accuracy.
PLC control with user-friendly touchscreen operation.
Servo-controlled blade gap for thickness adjustment, optional.
Solvent recovery unit, optional.

Technical Specifications

Coating Modes	Continuous & intermittent coating
Max Mechanical Speed	1 m/min
Coating Speed	0–0.5 m/min
Coating & Blank Interval	Coating length 10–5000 mm, blank length 10–500 mm
Double-side Alignment	Photoelectric detection for automatic gap tracking and front-back alignment
Applicable Substrate Thickness	Aluminum foil 8–30 μm, copper foil 6–30 μm
Roll Width	330 mm
Max Effective Coating Width	≤300 mm
Coating Thickness Accuracy	±3 μm
Coating Areal Density Tolerance	≤±1.5% (substrate included, edge abnormal areas excluded; sampling standard refer to product evaluation document)
Applicable Slurry Viscosity	2000–12000 mPa·s
Single-side Dry Coating Thickness	20–200 μm
Applicable Solvent (Oil-based)	NMP (s.g=1.033, b.p=204°C)
Applicable Solvent (Aqueous)	H₂O/NMP blend (s.g=1.000, b.p=100°C)
Solid Content Range	20–85%
Coating Dimension Accuracy	:Ls*l.Ws+0.5
Front-Back Registration Accuracy	Ls+1、Ws±0.5
Edge Correction Deviation	≤0.3 mm
Oven Structure	Double-layer stacked heating with circulating hot air
Heating Control	Analog power regulation, hot air circulation, ±1°C precision
Max Oven Temperature	150°C, temperature deviation within single oven section ≤±2.5°C

Applications

Li-ion battery electrode development and pilot-scale production trials.
R&D coating of supercapacitor and Ni-based battery electrodes.
Coating thickness and uniformity testing for slurry formulations of varying viscosity.

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