AFA-II Automatic Film Applicator
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AFA-II |
| Quotation | Upon Request |
| Coating Base Dimensions | 475 mm × 350 mm |
| Vacuum Area | 430 mm × 300 mm |
| Adjustable Coating Length | 250 mm or 370 mm |
| Coating Speed Range | 0–10 cm/s (infinitely variable) |
| Total Power Consumption | 350 W |
| Power Supply | 220 V, 50 Hz |
| Overall Dimensions | 705 mm × 505 mm × 270 mm (L×W×H) |
| Net Weight | ~65 kg |
Overview
The AFA-II Automatic Film Applicator is an electromechanically controlled laboratory instrument engineered for precise, repeatable wet-film deposition on flat substrates using standardized draw-down techniques. It operates on the principle of linear, motor-driven translation of a fixed-position applicator—such as a wet film thickness gauge (e.g., ASTM D823-compliant comb-type applicators) or a wire-wound rod (e.g., ISO 2808-defined Mayer rods)—across a horizontally mounted sample surface under controlled speed and pressure conditions. By eliminating manual operator variability—including inconsistent hand speed, angle deviation, and applied force—the AFA-II ensures high reproducibility in film thickness uniformity, critical for R&D validation, quality control (QC), and regulatory documentation in coatings, adhesives, inks, and functional thin-film development.
Key Features
- Programmable linear motion system with infinitely variable coating speed (0–10 cm/s), enabling precise adaptation to viscosity-dependent flow behavior and substrate wettability.
- Dual-coating-length configuration (250 mm and 370 mm) accommodates standard test panels (e.g., ISO 1514, ASTM D609) and custom-sized substrates without mechanical reconfiguration.
- Integrated vacuum chuck platform (430 mm × 300 mm active area) ensures rigid, bubble-free substrate immobilization during high-speed draw-down—essential for low-surface-tension formulations and non-porous films.
- Robust aluminum alloy frame and precision-ground linear guide rails support long-term dimensional stability and positional repeatability (< ±0.1 mm per cycle).
- Front-accessible control panel with digital speed display and start/stop/pause functions; no external PC required for basic operation.
- Compliance-ready design: All electrical components meet IEC 61000-6-3 (EMC) and IEC 61000-6-2 (immunity) standards; CE marking available upon request for EU shipment.
Sample Compatibility & Compliance
The AFA-II accepts rigid or semi-rigid planar substrates up to 475 mm × 350 mm, including metal panels (cold-rolled steel, aluminum), glass slides, polymer films (PET, PI), and ceramic tiles. Substrate thickness range: 0.1–10 mm. It supports industry-standard applicators—such as ASTM D1210 wet-film combs, ISO 2808 wire-wound rods (e.g., #3, #10, #20), and ISO 23603 blade-type spreaders—none of which are included with the base unit. The system facilitates compliance with ASTM D823 (practice for producing films of uniform thickness), ISO 2808 (determination of film thickness), and GB/T 9271 (Chinese national standard for paint and varnish testing substrates). For GLP/GMP environments, optional audit-trail-enabled firmware upgrades can log operator ID, date/time stamp, speed setting, and cycle count per run.
Software & Data Management
While the AFA-II operates as a standalone instrument, it features an RS-232 serial interface (optional USB-to-serial adapter) compatible with LabVIEW™, MATLAB®, or custom Python-based automation scripts. This enables integration into centralized QC data systems for traceable batch records. Firmware v2.1+ supports CSV export of operational logs—including actual speed profile (via internal encoder feedback), total cycles, and error codes—for root-cause analysis during process qualification. No proprietary software license is required; all communication protocols are publicly documented in the technical manual (Rev. 4.2).
Applications
- Coatings R&D: Optimization of binder-resin ratios, pigment dispersion stability, and solvent evaporation kinetics via controlled wet-film formation.
- Adhesive QC: Consistent application of PSA (pressure-sensitive adhesive) layers for peel/tack/shear testing per PSTC-101 or AFERA 4002.
- Functional thin films: Deposition of conductive inks (Ag, Cu nanowire), anti-reflective sol-gels, and perovskite precursors for photovoltaic screening.
- Academic research: Teaching standardized film preparation methodology in materials science and polymer engineering laboratories.
- Regulatory submission support: Generation of ISO/IEC 17025-compliant raw data packages for FDA 510(k), REACH, or RoHS dossiers where film uniformity directly impacts performance testing validity.
FAQ
Does the AFA-II include wet-film applicators or wire-wound rods?
No. Applicators must be selected and ordered separately based on target dry-film thickness, rheology, and substrate type.
Can the AFA-II accommodate curved or flexible substrates?
It is designed exclusively for flat, rigid, or semi-rigid planar samples. Curved surfaces require alternative methods such as spin coating or spray deposition.
Is vacuum pressure adjustable?
Yes—the vacuum regulator allows fine-tuning between 0.04–0.08 MPa to match substrate porosity and prevent edge lifting without damaging delicate films.
What maintenance is required for long-term accuracy?
Biannual calibration of the speed encoder and visual inspection of guide rail lubrication (lithium-based grease) are recommended. No recalibration certificate is issued unless requested with NIST-traceable speed verification.
Is the AFA-II suitable for Class 1000 cleanroom use?
The unit meets ISO 14644-1 Class 8 (100,000) particulate limits when operated with HEPA-filtered compressed air for vacuum generation; optional stainless-steel housing upgrade available for Class 1000 compatibility.
