EWIN-TECH Nova UC1000 Desktop Ultrasonic Precision Spray Coater

Overview

The EWIN-TECH Nova UC1000 Desktop Ultrasonic Precision Spray Coater is an engineered solution for controlled, low-volume deposition of functional liquid formulations onto substrates with micron-level spatial resolution. It operates on the principle of high-frequency ultrasonic atomization—where piezoelectric transducers vibrate at resonant frequencies (typically 120 kHz) to generate fine, monodisperse droplets from precursor solutions without thermal degradation or nozzle clogging. Unlike pneumatic or air-assisted spray systems, this device eliminates shear-induced molecular breakdown and enables consistent droplet size distribution (Dv50 ≈ 10–25 µm) critical for uniform thin-film formation. Designed for R&D laboratories and pilot-scale manufacturing environments, the Nova UC1000 supports reproducible coating of sensitive electrochemical materials—including proton exchange membranes (PEMs), catalyst inks, solid-state electrolyte suspensions, and conductive polymer dispersions—on rigid or flexible substrates up to 300 × 300 mm.

Key Features

• Ultrasonic atomization module with adjustable frequency and amplitude control for precise droplet generation and flow rate modulation (0.01–0.5 mL/min typical range)
• Programmable XYZ three-axis motion system driven by high-resolution servo motors (repeatability ±1.5 µm) with S-curve acceleration profiling to minimize mechanical vibration during scanning
• Integrated PLC-based control architecture with industrial-grade 7-inch capacitive touchscreen HMI supporting multi-language UI and intuitive parameter configuration
• Onboard memory for up to 20 independent spray path programs—including layer-by-layer offset patterns, raster scanning, and contour-following trajectories
• Modular design accommodating interchangeable spray heads (100–400 µm orifice options) and optional heated substrate stage (RT–120 °C) for in-situ solvent evaporation control
• IP54-rated enclosure with interlocked safety door and real-time status monitoring via LED indicators and digital I/O signals for external integration

Sample Compatibility & Compliance

The Nova UC1000 accommodates a broad range of low-to-medium viscosity liquids (1–50 mPa·s), including aqueous and organic solvent-based dispersions, colloidal suspensions, and nanoparticle inks. Substrate compatibility spans silicon wafers, carbon paper, titanium mesh, fluorinated ethylene propylene (FEP) films, and flexible PET foils. All wetted components—including fluid paths, reservoirs, and atomizer nozzles—are constructed from chemically resistant 316 stainless steel, PTFE, or fused silica to ensure compatibility with acidic PEM ink formulations (e.g., Nafion® dispersions) and corrosive electrocatalyst precursors. The system complies with CE machinery directive 2006/42/EC and electromagnetic compatibility standard EN 61326-1. Optional documentation packages support GLP-compliant operation, including instrument qualification (IQ/OQ) templates and audit-ready calibration logs traceable to NIST standards.

Software & Data Management

Operation is managed through embedded firmware with deterministic real-time scheduling—ensuring sub-millisecond synchronization between motion commands and ultrasonic pulsing. Path programming supports G-code import (ISO 6983) and proprietary .SPR file format for hierarchical layer definition (e.g., base coat, catalyst layer, microporous layer). All process parameters—including atomizer voltage, scan speed, dwell time, and Z-height offsets—are timestamped and logged locally in CSV format. Data export supports USB mass storage and Ethernet TCP/IP protocols for integration into LIMS or MES platforms. For regulated environments, optional software modules provide 21 CFR Part 11-compliant user access control, electronic signatures, and immutable audit trails with SHA-256 hash verification of all critical event records.

Applications

• Deposition of catalyst layers (e.g., Pt/C, IrO_x) onto gas diffusion electrodes for PEM fuel cells and water electrolyzers
• Uniform coating of Nafion® or hydrocarbon-based ionomers onto porous transport layers to optimize proton conductivity and interfacial adhesion
• Patterned deposition of Li-ion battery cathode slurries (e.g., NMC, LFP) for microbattery prototyping and solid-state battery interface engineering
• Functionalization of sensor substrates with enzyme-loaded polymer matrices for electrochemical biosensing platforms
• Controlled fabrication of perovskite precursor films for optoelectronic device R&D, minimizing coffee-ring effects through modulated droplet impact kinetics

FAQ

What types of solvents and precursors are compatible with the Nova UC1000?
The system supports common polar solvents (water, isopropanol, ethanol, DMF, NMP) and low-viscosity dispersions (<50 mPa·s). Aggressive solvents such as concentrated HF or fuming nitric acid require custom wetted material upgrades.
Can the Nova UC1000 be integrated into a glovebox or dry room environment?
Yes—the unit is available with optional nitrogen purge ports and static-dissipative housing for inert-atmosphere operation; full integration requires coordination of power, signal, and fluid feedthroughs during ordering.
Is path programming limited to preloaded patterns, or can users define custom geometries?
Users may import DXF vector files or define arbitrary shapes via coordinate scripting; advanced features include automatic edge detection for substrate alignment and dynamic Z-compensation for warped surfaces.
Does the system support automated thickness monitoring during spraying?
While the base configuration does not include in-line metrology, optical interferometry or laser profilometry sensors can be retrofitted via standardized mounting interfaces and synchronized trigger outputs.
What maintenance intervals are recommended for sustained precision operation?
Ultrasonic transducers require annual recalibration; fluid path filters should be replaced every 200 operational hours; nozzle inspection and cleaning are advised after each formulation change or every 50 hours—whichever occurs first.