KJ GROUP MSK-AFA-II-VC Automatic Film Coater

Overview

The KJ GROUP MSK-AFA-II-VC Automatic Film Coater is a precision-engineered laboratory-scale coating system designed for reproducible, uniform thin-film deposition across diverse functional materials. It operates on the principle of doctor-blade (knife-over-edge) coating under vacuum-assisted substrate immobilization—a method widely adopted in R&D for ceramic, crystalline, battery electrode, and nanostructured thin films. Unlike manual or gravity-fed systems, the MSK-AFA-II-VC employs a motorized linear stage with programmable speed control (10–100 mm/s) and precise stroke adjustment (10–530 mm), enabling deterministic control over film length and edge uniformity. The integrated vacuum platen (600 × 250 mm effective area) eliminates substrate warping or wrinkling during coating—critical for high-aspect-ratio or low-surface-tension slurries. Its compact footprint (850 × 430 × 223 mm) and modest power demand (50 W) make it suitable for benchtop integration in academic labs, battery prototyping facilities, and materials characterization centers.

Key Features

• Vacuum-substrate fixation system with 600 × 300 mm platen and ≥−80 kPa holding capability ensures flat, wrinkle-free film formation on rigid or semi-flexible substrates (e.g., Al foil, Cu foil, glass, silicon wafers, PET).
• Micro-adjustable doctor blade assembly with 0.01 mm resolution (range: 0.01–5 mm), supplied standard with 250 mm blade; optional blades (50 mm, 100 mm) and multi-thickness tools (quad-thickness frame coater, box-type applicator) available for parallel process development.
• Programmable coating velocity and stroke length support method transfer from lab to pilot scale—particularly valuable for validating slurry rheology, drying kinetics, and electrode calendering parameters in Li-ion and solid-state battery workflows.
• CE-compliant electrical architecture with grounded AC 220 V / 50 Hz input and built-in thermal protection; no compressed air, water, or external ventilation required—reducing facility dependencies.
• Modular expansion interface for optional accessories: AP-1400V oil-free vacuum pump (for enhanced vacuum stability), vacuum stirrer (for degassing viscous slurries pre-coating), and inline viscometer integration (for real-time slurry consistency monitoring).

Sample Compatibility & Compliance

The MSK-AFA-II-VC accommodates substrates up to 600 mm in length and 250 mm in width, supporting common current collector formats used in electrochemical energy storage research (e.g., 5 cm × 5 cm to 10 cm × 15 cm electrodes). It is routinely deployed for aqueous and NMP-based cathode/anode slurries (LiCoO₂, NMC, LFP, Si/C composites), sol-gel precursors (TiO₂, ZnO), polymer electrolytes (PEO-LiTFSI), and perovskite precursor inks. All mechanical and electrical components comply with EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. CE marking confirms conformity with essential health and safety requirements—including insulation integrity, grounding continuity, and enclosure IP20 protection. While not GMP-certified out-of-box, its repeatable motion control, traceable blade positioning, and stable vacuum performance enable alignment with GLP documentation practices when paired with lab-specific SOPs.

Software & Data Management

The MSK-AFA-II-VC operates via front-panel digital controls with LED display—no proprietary software or PC interface is required for basic operation. However, its motor driver supports analog voltage input (0–10 V) and TTL trigger signals, permitting integration into automated test benches using LabVIEW, Python (PySerial), or PLC-based control systems. Users may log coating parameters (speed, stroke, dwell time) manually or via external DAQ systems for audit trails. Though the device itself does not generate electronic records, its deterministic kinematics and mechanical repeatability (±0.01 mm thickness accuracy, <±1% stroke deviation over 500 cycles) support data integrity in ISO/IEC 17025-accredited laboratories when combined with calibrated thickness measurement tools (e.g., eddy-current gauges, profilometers) and documented calibration schedules.

Applications

• Electrode fabrication for lithium-ion, sodium-ion, and solid-state batteries—enabling rapid iteration of active material loading, binder distribution, and porosity profiles.
• Functional oxide film preparation for solid oxide fuel cells (SOFCs), oxygen sensors, and memristive devices.
• Scalable deposition of perovskite photovoltaic layers with controlled nucleation density and grain growth kinetics.
• Uniform coating of conductive polymer films (PEDOT:PSS, PANI) for flexible electronics and transparent electrodes.
• Preparation of calibration standards for spectroscopic ellipsometry, XRD texture analysis, and SEM cross-sectional metrology.

FAQ

What substrates are compatible with the MSK-AFA-II-VC?
Rigid and semi-rigid planar substrates including metal foils (Al, Cu), glass slides, silicon wafers, ceramic plates, and polymer films (PET, PI) up to 0.5 mm thickness and within the 600 × 250 mm vacuum area.
Can the system be used for solvent-based and aqueous slurries?
Yes—provided slurry viscosity is within the operational window of the selected doctor blade geometry (typically 100–5000 mPa·s); vacuum-assisted degassing (via optional vacuum stirrer) is recommended for bubble-sensitive formulations.
Is the blade gap setting traceable and repeatable?
Yes—the micrometer-driven blade holder provides direct mechanical readout with 0.01 mm resolution and mechanical lock to prevent drift during extended runs.
Does the unit include a vacuum pump?
No—the AP-1400V oil-free vacuum pump is an optional accessory; the base system includes only the vacuum platen and tubing interface.
How is film thickness validated post-coating?
Thickness verification requires off-line metrology: gravimetric analysis (coating mass per unit area), profilometry (step-height measurement), or non-contact optical methods (white-light interferometry, laser triangulation).