Aerosol Jet 200 (AJ 200)

General Introduction

The Aerosol Jet 200 is a compact, benchtop aerosol jet printing system designed for professional‑grade research prototyping, materials and process development, and small‑batch custom production. It offers an excellent balance of high precision, multi‑material compatibility, and ease of use, making it a cost‑effective platform ideally suited to universities, research institutions, material developers, and small electronics manufacturers. Built on aerodynamic focusing technology, the AJ 200 excels in its compact form factor, broad material compatibility, and flexible processing modes. It can print features ranging from 10 microns to millimeter scales, meeting both the demands of fine‑scale electronic structure prototyping and the production of small‑run, customized electronic devices—bridging the gap between entry‑level research tools and industrial‑grade equipment. The AJ 200 features a standardized, space‑efficient benchtop design that fits seamlessly into laboratory workspaces. Its intuitive user interface ensures quick adoption without requiring specialized operators, lowering the barrier to entry for both research and manufacturing. Standard equipment includes a high‑resolution print head, a dual ultrasonic–pneumatic atomization system, a 200 mm × 200 mm heated vacuum stage, and a vision‑based alignment system. These capabilities enable non‑contact, conformal deposition on both planar and non‑planar substrates, supporting a wide range of materials—from conductive inks and dielectrics to biomaterials—and allowing the fabrication of conductive traces, embedded passive components, biosensors, and other complex structures. Currently, the AJ 200 has been adopted by institutions such as Boise State University and Cleveland State University for research in printed electronics and bioelectronics, while also serving small electronics firms for the low‑volume production of custom sensors and flexible circuits. Its robust performance and exceptional value make it an ideal choice for both research and small‑batch manufacturing, helping users rapidly turn design concepts into prototypes and accelerating the translation of scientific discoveries into marketable products. Furthermore, the device complies with CE industry standards and incorporates comprehensive process‑control features, enabling precise adjustment and storage of process parameters to support data traceability and process optimization throughout the research lifecycle.

Working principle

The Aerosol Jet 200 is built around aerosol jet printing (AJP) technology, integrating both ultrasonic and pneumatic atomization modes. Its overall workflow revolves around six core stages: atomization, droplet sorting, aerosol transport, aerodynamic focusing, precise deposition, and process control. Throughout the entire process, a non‑contact manufacturing approach is employed, ensuring the integrity of both the substrate and the printed structure while accommodating diverse needs in research and small‑batch production. First, the system flexibly selects either ultrasonic or pneumatic atomization based on the viscosity characteristics of the printing material. Ultrasonic atomization is suited for materials with viscosities below 10 cP at room temperature and requires a temperature‑stabilized water bath to use ultrasonic vibrations to break the material into uniform droplets measuring 1–5 µm in diameter, thereby preventing viscosity fluctuations caused by temperature changes. Pneumatic atomization, on the other hand, handles a broader range of viscosities from 1 to 1000 cP and incorporates an integrated heating and stirring control system; heating reduces viscosity to optimize atomization, yielding uniformly sized aerosol droplets. The seamless switching between these two atomization methods meets the processing requirements of various materials, including biomaterials and nano‑metal inks. Subsequently, an inert carrier gas—nitrogen at a flow rate of 28 LPM—precisely transports the atomized aerosol droplets to the print head. During this transport, droplet sorting takes place, removing excessively large or small droplets to enhance aerosol density, laying the groundwork for high‑precision printing while minimizing nozzle clogging and extending continuous operating time. Next, an annular protective gas within the print head generates a strong aerodynamic focusing stream, compressing the aerosol droplet plume into a narrow, high‑velocity jet capable of speeds exceeding 50 m/s. This jet maintains stable focus even at standoff distances of up to 5 mm, enabling non‑contact conformal deposition on non‑planar and complex substrates without damaging delicate materials or biological samples. Following this, the system’s X/Y axis motion platform drives either the print head or the substrate along pre‑defined CAD paths with positioning accuracy as fine as ±2.5 µm, precisely depositing the aerosol jet at the target location and building up the desired electronic or bio‑functional structures layer by layer. During deposition, a 200 mm × 200 mm heated vacuum stage provides stable fixation and temperature regulation, enhancing interlayer adhesion and overall structural quality. Meanwhile, a mechanical shutter—with a response time of just 2 ms—enables precise control over start/stop operations, minimizing material waste. Finally, depending on the material properties, the system completes structural formation through subsequent sintering or curing processes, supporting laser sintering for metal inks and UV curing for polymer materials, thus eliminating the need for complicated secondary processing steps. Additionally, the system’s process‑control software allows real‑time monitoring and fine‑tuning of atomization parameters, gas flow rates, printing speeds, and other key settings, ensuring process stability and batch‑to‑batch consistency while meeting the demands of process optimization and data traceability in research applications.

Aerosol Jet 3D Printing Flowchart:

Advantages and Key Features

The Aerosol Jet 200’s core strengths lie in four key areas: exceptional cost‑effectiveness, a compact design, multi‑material compatibility, and ease of operation. It seamlessly balances fine‑feature printing precision with process tunability, making it well suited to the needs of research labs, universities, and small enterprises. By striking a balance between practicality and affordability, it efficiently meets both R&D prototyping and low‑volume production demands. In terms of cost‑effectiveness, the system delivers professional‑grade printing performance at an entry‑level price, enabling high‑resolution feature fabrication while supporting dual‑atomization modes and multi‑material processing. It satisfies core R&D prototyping requirements and can also handle small‑batch manufacturing, allowing precise deposition of electronic structures without significant capital investment—thereby lowering the barrier to entry for both research and limited‑scale production, particularly in budget‑constrained settings. Its compact desktop form factor occupies minimal bench space, fitting easily on laboratory workstations and accommodating typical lab layouts. The streamlined, robust design ensures convenient daily handling and maintenance, with no need for specialized installation or calibration; the system is ready to use right out of the box. Regarding multi‑material compatibility, the device supports a broad viscosity range—from 1 to 1,000 cP—including conductive metal nanoparticle inks, dielectric pastes, resistive materials, polymers, adhesives, etchants, and even biomaterials. This versatility addresses the diverse needs of electronics, biotechnology, energy, and other fields, while material switching is quick and hassle‑free, eliminating the need to change dedicated print heads and reducing operational complexity and time costs. Users can rapidly adapt the system to test different materials and develop new processes. In terms of usability, the system features a user‑friendly interface and a computer‑controlled workflow, with support for CAD file import and rapid generation of print paths. Even non‑experts can get up and running quickly, lowering the learning curve. Meanwhile, the process‑control software enables precise parameter adjustment and storage, facilitating process optimization and comparative experiments. Strong data traceability further supports validation and translation of research outcomes. Additionally, the system achieves feature sizes of 10–200 microns, with minimum line widths down to 10 microns, and supports conformal printing on both planar and non‑planar substrates, with an off‑surface printing distance of up to 5 mm. This capability allows electronic structures to be deposited on curved or irregularly shaped substrates, meeting the demands of complex designs in both research and production. A mechanical shutter with a 2 ms response time ensures precise control over print start/stop, minimizing material waste and enhancing both printing accuracy and material utilization. For process stability, the system incorporates a heated vacuum stage and an integrated stirring system, which effectively regulate material viscosity and substrate temperature, reducing defects and ensuring consistent print quality. The dual‑atomization design guarantees stable atomization of materials across varying viscosities, enabling continuous operation for several hours (depending on material properties), thus supporting the sustained processing required for small‑batch production. Compliant with CE industry standards and relevant regulatory frameworks, the system operates safely and reliably, providing long‑term, dependable service in research and manufacturing environments and delivering consistent, high‑performance printing solutions.

The Aerosol Jet 200 model boasts excellent material compatibility and a highly open materials platform, supporting a wide range of functional materials required across the entire electronic device R&D workflow. These include conductive nanoparticle inks—such as gold, silver, carbon nanotubes, and MXenes—various high-performance polymers—including thermosetting resins, UV‑curable photopolymers, and solvent‑based polyimides—insulating materials, high‑performance adhesives, etchants, and even biomaterials like proteins and DNA. The system enables open‑source material usage, allowing users to either directly employ commercially available inks or independently develop custom‑designed functional materials, thereby flexibly meeting diverse research and industrialization needs. The figure below illustrates material systems that have been validated through peer‑reviewed publications and practical testing, with additional new materials currently under ongoing development.

Application Areas and Use Cases

The Aerosol Jet 200 is primarily used by universities, research institutions, materials developers, and small electronics manufacturers, with core applications spanning printed electronics, bioelectronics, energy, and sensor manufacturing. It focuses on process development, material testing, prototype fabrication, and low‑volume custom production, addressing the limitations of conventional techniques in processing fine structures and specialized materials—making it especially well suited for budget‑constrained, space‑limited settings. In the research domain, this equipment serves as an essential entry‑level platform for universities conducting studies in printed and bioelectronics. Boise State University employs it to carry out fundamental research on electronic devices, exploring printing processes for intricate electronic architectures; meanwhile, Cleveland State University utilizes it for new‑material testing and process optimization, providing a reliable testbed for developing next‑generation electronic inks. In bioelectronics, the system supports the R&D and prototyping of biosensors, drug‑screening chips, and other devices, enabling the deposition of biological materials alongside electronic circuits to achieve precise detection and transmission of biological signals. For example, it can print interdigitated electrode capacitive strain gauges onto aluminum alloy substrates for strain monitoring in high‑temperature environments, meeting the sensor‑development needs of specialized applications such as nuclear reactors. In the energy sector, it facilitates high‑precision electrode and grid‑line printing for solar cells and fuel cells, helping researchers optimize electrode designs and enhance battery energy‑conversion efficiency. It also supports the rapid prototyping of novel energy devices, accelerating the iterative advancement of energy technologies. In sensor manufacturing, small electronics firms can leverage this equipment to produce customized temperature, strain, and other sensors without the need for dedicated molds, reducing costs associated with low‑volume production and increasing design flexibility. For instance, silver nanoparticle ink can be used to print capacitive strain gauges with stable gauge factors, suitable for monitoring under high‑temperature, low‑strain conditions. In materials development, material suppliers can use the system to evaluate the printability of new electronic inks and dielectric materials, refine material formulations, and advance the industrial application of innovative functional materials. A notable case involves the development of strain sensors for nuclear reactors: by printing interdigitated electrode capacitive strain gauges onto aluminum alloy 6061 tensile test specimens, tests demonstrated that their strain‑sensing performance exhibits superior repeatability and predictability compared to commercially available resistive strain gauges, making them ideal for precise monitoring in high‑temperature, low‑strain environments. Meanwhile, in the bioelectronics field, the device can directly pattern biological materials, providing critical technical support for the development of next‑generation biosensors.

To ensure the stability and precision of the printing process, the Aerosol Jet 200 aerosol jet printing system is equipped with a set of high‑performance standard components that work in concert to form a complete closed‑loop printing architecture. The precision print head features an interchangeable design, offering multiple ceramic nozzle specifications to support the deposition of fine features ranging from 10 to 200 microns, while providing up to 45° of manual tilt freedom to accommodate printing requirements at various angles. The ultrasonic atomizer can handle materials with viscosities below 10 cP at room temperature, efficiently converting the ink into a uniform aerosol suspension; when paired with the optional pneumatic atomizer—capable of processing materials with viscosities from 1 to 1,000 cP—the system further expands its material compatibility. A 200 × 200 mm heated vacuum platen securely holds the substrate in place while enabling temperature control up to 100°C, thereby enhancing adhesion and improving the quality of the deposited layer. A registration and process‑monitoring camera forms a high‑precision vision system, enabling print‑head calibration, alignment, and real‑time line‑width measurement. Meanwhile, a 2‑millisecond mechanical shutter provides precise control over the start and stop of material deposition, ensuring traceability and controllability throughout the printing process.