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 manufacturing. It offers an excellent balance of high print resolution, multi-material compatibility, and ease of use, making it a cost-effective platform ideally suited for universities, research institutions, materials developers, and small electronics manufacturers. Built on aerodynamic focusing technology, the AJ 200’s key advantages include a compact footprint, broad material compatibility, and flexible processing modes. It can print features ranging from 10 micrometers to millimeter scales, meeting both the needs of precision electronic structure prototyping and the production of small-batch customized electronic devices, thereby bridging the gap between entry-level research equipment and industrial-grade systems. The AJ 200 features a standardized, space-efficient benchtop design that fits seamlessly into laboratory workspaces, while its intuitive user interface ensures quick onboarding even for non-specialist operators, lowering the barrier to entry for both research and production. 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, enabling contactless conformal deposition on both planar and non-planar substrates. The system supports a wide range of materials—from conductive inks and dielectric materials to biomaterials—and can fabricate conductive traces, embedded passive components, biosensors, and other complex structures. Currently, the AJ 200 is being used at institutions such as Boise State University and Cleveland State University for research in printed electronics and bioelectronics, as well as by small electronics firms for the small-batch production of custom sensors and flexible circuits. Its reliable performance and cost-effectiveness make it an ideal choice for research and low-volume manufacturing, helping users rapidly turn design concepts into prototypes and accelerating the translation of research outcomes into market-ready products. In addition, the AJ 200 complies with CE industry standards and features comprehensive process-control capabilities, 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 centered on aerosol jet printing (AJP) technology and integrates ultrasonic and pneumatic dual atomization modes. Its overall workflow revolves around six core stages: atomization, droplet sorting, aerosol delivery, aerodynamic focusing, precise deposition, and process control. The entire process employs a non-contact fabrication approach, ensuring the integrity of both the substrate and the printed structure while accommodating the diverse needs of research and small-batch production. First, the system flexibly selects either ultrasonic or pneumatic atomization based on the viscosity characteristics of the printing material to generate an aerosol. 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 with diameters of 1–5 μm, thereby preventing viscosity fluctuations caused by temperature changes. Pneumatic atomization, on the other hand, is compatible with a broad range of materials spanning viscosities from 1 to 1,000 cP and is equipped with an on-line heating and stirring control system that reduces viscosity through heating to optimize atomization performance, also producing uniformly sized aerosol droplets. The flexible switching between these two atomization modes meets the processing requirements of various material types, including biomaterials and nano-metal inks. Subsequently, an inert carrier gas—nitrogen, supplied at a flow rate of 28 L/min—precisely transports the atomized aerosol droplets to the print head, where droplet sorting is performed en route to remove droplets that are too large or too small, thereby enhancing aerosol density and laying the foundation for high-precision printing while preventing nozzle clogging and extending continuous operating time. Next, the annular protective gas within the print head generates a strong aerodynamic focusing stream that compresses the aerosol droplet beam into a narrow, high-speed jet with velocities exceeding 50 m/s. This jet maintains stable focus even at standoff distances of up to 5 mm, enabling non-planar and complex-shaped substrates to be conformally deposited without contact, thus avoiding damage to delicate substrates or biological materials. Following this, the equipment’s X/Y-axis motion system drives either the print head or the substrate along pre-programmed CAD paths with positioning accuracy as fine as ±25 μm, precisely depositing the aerosol jet at the target location to build up the desired electronic or biological structures layer by layer. During deposition, a 200 mm × 200 mm heated vacuum stage provides stable fixation and temperature control of the substrate, improving adhesion and forming quality of each printed layer. Meanwhile, a mechanical shutter with a response time of only 2 ms enables precise control over print start/stop, minimizing material waste. Finally, depending on the material properties, the system completes structural formation through subsequent sintering or curing processes, supporting laser sintering of metal inks and UV curing of polymer materials without requiring complex secondary processing steps. In addition, the system’s process-control software allows real-time monitoring and precise adjustment of atomization parameters, gas flow rates, printing speeds, and other key settings, ensuring process stability and batch-to-batch consistency while meeting the needs of process optimization and data traceability in research applications.

Aerosol Jet 3D Printing Flowchart:

Advantages and Key Features

The Aerosol Jet 200’s core advantages lie in four key areas: exceptional cost-effectiveness, a compact design, multi-material compatibility, and ease of operation—while simultaneously delivering fine printing resolution and precise process control. It is perfectly tailored to the needs of research laboratories, universities, and small enterprises, striking an optimal balance between practicality and affordability to efficiently meet both R&D prototyping and small-batch production requirements. In terms of cost-effectiveness, the system delivers professional-grade printing performance at an entry-level price point, enabling the fabrication of intricate microstructures. It supports dual-atomization modes and multi-material processing, satisfying core R&D prototyping needs while also handling small-batch production. With no need for substantial capital investment, it enables the precise deposition of electronic structures, significantly lowering the barriers to entry for both research and small-scale manufacturing—making it especially well-suited for budget-constrained applications. The compact design features a benchtop form factor that occupies minimal space, allowing flexible placement on laboratory workstations and accommodating typical lab layouts. The streamlined, robust construction facilitates routine handling and maintenance, eliminating the need for specialized installation or commissioning; the system can be up and running quickly right out of the box. Regarding multi-material compatibility, the device supports a broad viscosity range from 1 to 1,000 cP, covering conductive nanometal inks, dielectric pastes, resistive materials, polymers, adhesives, etchants, and even biomaterials. This versatility meets the diverse R&D and production demands across electronics, biotechnology, energy, and other fields. Material switching is seamless and requires no replacement of dedicated print heads, reducing operational complexity and time costs, and enabling rapid adaptation to different material types for testing and process development. In terms of ease of use, the system features a user-friendly interface and computer-controlled operation, with support for CAD file import and rapid generation of print paths, making it accessible even to non-expert operators and lowering the barrier to entry. The process-control software allows precise adjustment and storage of parameters, facilitating process optimization and comparative experiments for researchers, while robust data traceability provides strong support for validating and translating research outcomes. Furthermore, the system achieves feature sizes of 10–200 microns, with minimum line widths as low as 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 enables the deposition of electronic structures on curved and complex-shaped substrates, meeting the demands of advanced R&D and manufacturing. 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 is equipped with a heated vacuum stage and an integrated stirring system, which effectively regulate material viscosity and substrate temperature, reduce printing defects, and ensure consistent print quality. The dual-atomization design guarantees stable atomization of materials across a wide viscosity range, supporting continuous operation for several hours (depending on material properties), thereby meeting the demands of uninterrupted small-batch production. The device complies with CE industry standards and relevant regulatory requirements, ensuring safe and reliable operation over the long term, and providing users with a sustainable, high-performance printing solution for both research and production environments.

The Aerosol Jet 200 model boasts exceptional material compatibility and a highly open materials platform, making it ideally suited to accommodate a wide range of functional materials required throughout the entire R&D process for electronic devices. These include conductive nanoparticle inks (such as gold, silver, carbon nanotubes, and MXenes), various high-performance polymers (including thermosetting polymers, UV-curable photopolymers, and solvent-based polyimides), insulating materials, high-performance adhesives, etchants, and even biomaterials like proteins and DNA. The system supports open-source material usage, allowing users to either directly select commercially available, proven ink formulations or independently develop custom 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; additional new materials are continuously under development.

Application Areas and Use Cases

The Aerosol Jet 200 is primarily used by universities, research institutions, materials developers, and small electronic manufacturing firms, with core applications spanning printed electronics, bioelectronics, energy, and sensor manufacturing. It focuses on process development, material testing, prototype fabrication, and small-batch custom production, addressing the pain points of conventional processes in handling fine structures and special materials—making it particularly well suited for budget-constrained and space-limited applications. In the research domain, this equipment serves as a core entry-level platform for universities conducting studies in printed and bioelectronics, enabling fundamental research on electronic devices and exploration of printing processes for intricate electronic architectures. Boise State University, for instance, leverages the system for basic research on electronic components, investigating printing techniques for high-precision electronic structures, while Cleveland State University employs it for new-material testing and process development, providing a reliable testbed for the R&D of novel electronic inks. In bioelectronics, the system can be used for the R&D and prototyping of biosensors, drug-screening assay chips, and other products, where biological materials are deposited alongside electronic circuits to enable precise detection and transmission of biological signals. For example, interdigitated electrode capacitive strain gauges can be printed on 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, the system supports 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 is also applicable to the prototyping of next-generation energy devices, thereby accelerating the iterative advancement of energy technologies. In sensor manufacturing, small electronics companies can use the system to produce customized temperature, strain, and other sensors without the need for dedicated molds, significantly reducing the cost of small-batch production and increasing design flexibility—for instance, using silver-nanoparticle ink to print capacitive strain gauges with stable gauge factors that perform reliably in high-temperature, low-strain environments. In materials development, materials developers can utilize the system to evaluate the printability of novel electronic inks and dielectric materials, refine material formulations, and promote the industrial application of new functional materials. A typical application case involves the R&D of strain sensors for use inside nuclear reactors: interdigitated electrode capacitive strain gauges were printed on aluminum alloy 6061 tensile-test specimens, and tests demonstrated that their strain-sensing performance exhibits superior repeatability and predictability compared with commercially available resistive strain gauges, making them suitable for precise monitoring in high-temperature, low-strain conditions. Meanwhile, in the bioelectronics field, the system can directly print patterns of biological materials, providing critical equipment support for the development of novel 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 system. The precision print head features an interchangeable design with multiple ceramic nozzle specifications, enabling the deposition of fine features ranging from 10 to 200 microns while offering up to 45° of manual tilt for accommodating printing requirements at various angles. The ultrasonic atomizer can process materials with viscosities below 10 cP at room temperature, efficiently atomizing the printing material into a uniform suspended aerosol cloud; when paired with the optional pneumatic atomizer—capable of handling materials with viscosities from 1 to 1,000 cP—the system further expands the range of compatible materials. A 200 × 200 mm heated vacuum platen securely holds the substrate in place while providing temperature control up to 100°C, thereby significantly enhancing adhesion and print quality after material deposition. A registration and process-monitoring camera forms a high-precision vision system that enables print-head calibration, positional alignment, and real-time line-width measurement, while a 2-millisecond-response mechanical shutter precisely controls the start and stop of material deposition, ensuring full traceability and precise controllability of the printing process.