AFA-II Automatic Film Applicator
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AFA-II |
| Price | Upon Request |
| Coating Bed Dimensions | 475 mm × 350 mm |
| Vacuum Area | 430 mm × 300 mm |
| Maximum Coating Length | 370 mm |
| Coating Speed Range | 0–10 cm/s (infinitely variable) |
| Total Power Consumption | 350 W |
| Power Supply | 220 V, 50 Hz |
| Overall Dimensions (L×W×H) | 705 mm × 505 mm × 270 mm |
| Net Weight | ~65 kg |
Overview
The AFA-II Automatic Film Applicator is an electromechanically controlled laboratory instrument engineered for precision and reproducibility in thin-film deposition workflows. It operates on a linear translation principle, driving standardized wet-film applicators—such as drawdown bars (wire-wound rods), doctor blades, or film knives—across flat substrates under programmable speed and pressure conditions. Unlike manual coating methods, the AFA-II eliminates operator-induced variability in stroke consistency, dwell time, and applied force, thereby ensuring high inter- and intra-batch repeatability essential for R&D, quality control, and regulatory documentation in coatings, adhesives, inks, and functional material development.
Key Features
- Programmable coating speed from 0 to 10 cm/s with smooth, stepless adjustment—enabling precise control over shear rate and film thickness uniformity.
- Large-format coating bed (475 mm × 350 mm) with integrated vacuum hold-down area (430 mm × 300 mm) for secure substrate fixation during high-speed or low-viscosity applications.
- Dual-coating-length configuration supports both 250 mm and 370 mm travel distances, accommodating standard test panels (e.g., ASTM D823, ISO 2808) and custom substrates up to A3 size.
- Robust aluminum alloy frame and precision-ground linear motion system ensure long-term mechanical stability and minimal runout (< ±0.05 mm over full stroke).
- Front-accessible control panel with digital speed display and tactile push-button interface—designed for glove-compatible operation in cleanroom or industrial lab environments.
- Modular tool-mounting platform compatible with industry-standard applicator holders (e.g., Elcometer, Paul N. Gardner, BYK), allowing rapid interchange of wire bars (e.g., #3–#30), blade assemblies, or custom fixtures.
Sample Compatibility & Compliance
The AFA-II accommodates rigid and semi-rigid substrates including glass slides, metal panels, plastic films (PET, PC, PI), ceramic tiles, and coated paper—provided surface flatness deviation remains within ±0.1 mm across the vacuum zone. Substrate thickness range: 0.1 mm to 25 mm. The system complies with mechanical safety requirements per IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emission). While the AFA-II itself is not certified to ISO/IEC 17025, its consistent performance supports GLP-compliant coating protocols when used with traceable calibration standards and documented SOPs aligned with ASTM D1210, ISO 2808, and ISO 9001 quality management frameworks.
Software & Data Management
The AFA-II operates in standalone mode without embedded microprocessor-based software; however, it is fully compatible with external data acquisition systems via analog voltage output (0–10 V) synchronized to carriage position and speed. Users may integrate the unit with LabVIEW, MATLAB, or PLC-based automation platforms for closed-loop process logging, timestamped event tracking, and audit trail generation. For regulated environments (e.g., pharmaceutical excipient film studies under USP or FDA 21 CFR Part 11), optional RS-485 communication modules and electronic signature-capable HMI upgrades are available through authorized distributors—enabling user access control, parameter change history, and electronic batch records.
Applications
- R&D of waterborne and solvent-based coatings: evaluation of leveling, sag resistance, and drying behavior under standardized film geometry.
- Quality assurance of inkjet inks and conductive pastes: preparation of uniform layers for sheet resistance (ASTM F390), optical density (ISO 2846), or adhesion testing (ASTM D3359).
- Functional thin-film development: fabrication of perovskite precursor layers, battery electrode slurries (e.g., LiCoO₂, NMC), or antireflective sol-gel coatings where thickness reproducibility directly impacts device performance.
- Regulatory submission support: generation of GMP-aligned coating batches for stability studies, shelf-life validation, and comparative formulation screening per ICH Q5C guidelines.
- Educational laboratories: hands-on instruction in rheological coating behavior, capillary number effects, and substrate wettability assessment using controlled meniscus formation.
FAQ
Does the AFA-II include a wet-film applicator or wire bar?
No. The AFA-II is a motorized carriage system only. Wet-film applicators—including drawdown bars, doctor blades, and specialty coating tools—must be selected and purchased separately based on desired wet film thickness and material rheology.
Can the AFA-II be used with non-flat or flexible substrates?
It is optimized for planar, dimensionally stable substrates. Flexible films (e.g., PET, PE) require backing support or tensioning fixtures to prevent buckling under vacuum; unsupported free-hanging films are not recommended.
Is speed calibration traceable to national standards?
The speed encoder is factory calibrated against a NIST-traceable tachometer. Calibration certificates and adjustment procedures are provided upon request for IQ/OQ validation protocols.
What maintenance is required for long-term reliability?
Monthly inspection of vacuum seal integrity, biannual lubrication of linear guide rails with ISO VG 68 synthetic grease, and annual verification of motor encoder linearity using a laser displacement sensor.
Can the AFA-II be integrated into an automated coating line?
Yes. Its 0–10 V analog interface and discrete I/O terminals (start/stop, fault reset, vacuum status) support seamless integration with PLC-controlled production cells or robotic material handling systems.
