Relying on independent innovation to break through bottlenecks and lead a new realm of precision manufacturing.
[Qiming Additive Manufacturing]Shanghai Pulisen 3D Technology Co., Ltd. (hereinafter referred to as“Pulisen”) has developed micro-nano3Dprinting technology supported by the key R&D program of the Ministry of Science and Technology. With a completely localized technology path, it not only breaks the foreign equipment monopoly but also demonstrates significant advantages in performance, cost, and industrial chain security, providing safe and controllable manufacturing solutions for strategic fields such as aerospace and biomedicine, becoming a national-level demonstration case for the localization of high-end equipment.
01
Domestic Substitution: Breaking the Monopoly of Core Components
For a long time, China’s high-end3D printing equipment has been heavily reliant on imports. For example, in precision technologies such as photopolymerization 3D printing, core components like Texas Instruments’ DMD digital micromirror device, high-precision lasers, and galvanometer systems are almost monopolized by foreign companies.
In the battle for the localization of high-end equipment, Pulisenled the completion of the key R&D project of the Ministry of Science and Technology – “Additive Manufacturing Processes and Equipment for Micro-Nano Structures“, and with its independently developed micro-nano3D printing technology, it has become a benchmark enterprise for domestic substitution. The core patent“Subpixel Micro-Scanning (SMS)” technology achieves a globally leading2-micron printing accuracy, and the speed is over a hundred times that of traditional3D printing, breaking the long-standing technical bottleneck of the industry where “accuracy and speed cannot be achieved simultaneously.”
Pulisen micro-nano3D printer printing platform.Source: Pulisen
Pulisen’s unique SMS technology, through area exposure and micro-lens array control, compresses the spot accuracy to 500 nanometers, completely eliminating stitching errors, achieving2-micron printing accuracy with a speed astonishingly a hundred times that of traditional processes.
02
Material Innovation: Comprehensive Breakthrough from Non-Metal to Metal
Starting from the research and development of non-metal materials, Pulisen has built a complete technical matrix covering photosensitive resins, ceramics (alumina/zirconia/silicon carbide, etc.). For example, with photosensitive resins, through formula adjustments and process improvements, the surface of printed parts has achieved extreme smoothness; in terms of ceramic materials, precise control of powder particle size and slurry performance has resulted in printed ceramic structural parts with uniform density and high dimensional accuracy, providing disruptive manufacturing solutions for industries such as medical and electronics.
Source: Pulisen
Now, Pulisen has overcome the challenges of high-precision printing of stainless steel by optimizing slurry formulations and printing process parameters. The printed stainless steel components not only possess good mechanical properties but also meet the requirements for use in complex environments. In some industrial scenarios requiring high temperature and corrosion resistance, Pulisen’s stainless steel3D printed parts have shown great application potential, redefining the manufacturing paradigm of complex metal components.
03
Multi-Domain Application Penetration, Empowering Various Industries
With its independently developed micro-nano3D printing technology, Pulisen has become the dual champion in terms of production volume and value in the field of 3D printing applications in dentistry, medical, and high-precision manufacturing.
Dentistry——Orthodontic Invisible Aligners
In the field of orthodontic invisible aligners, Pulisen has developed multiple 3D printing devices suitable for dental restoration, implants, and teeth correction, and has developed a complete set of invisible orthodontics solutions (products). Its products have captured over50% of the domestic market share, equivalent to one in every two invisible aligners being produced by Pulisen. Behind this data is the comprehensive replacement of traditional dental mold manufacturing by micro-nano 3D printing technology.
Source: Pulisen
Biomedical Field——Organoid Chips
In the biomedical field, Pulisen’s micro-nano3D printing technology provides strong support for the development of organoid chips. Microfluidic chips manufactured using 3D printing technology can quickly generate high-quality organoid chips for drug screening and disease research.
Precision medicine, drug development – Organoid chips. Source: Pulisen
Features: Smooth surface with no stitching; minimum groove width of 0.02mm, minimum step height of 0.01mm; fine surface structure with local feature sizes of 5μm; rapid production (1 piece/hour, more than 5 times the efficiency of traditional processes).
Medical Field——Medical Device Applications
Pulisen’s micro-nano3D printed ceramic hollow microneedles use high-strength ceramic materials such as alumina and zirconia, and the high-strength characteristics of the ceramic materials allow for over100 punctures without risk of needle breakage or bending, ensuring stable and reliable use. In addition, this product significantly improves drug utilization, with some drug utilization rates increasing from10% to90%, providing a more efficient option for drug injection.
Medical aesthetics, drug delivery-Ceramic microneedles (hollow microneedles). Source: Pulisen
Features: Needle tip 3um, aperture 30-80um, needle lengths of 600um, 800um, 1000um, 1200um;
High strength, good biocompatibility.
Minimally invasive drainage stents for glaucoma. Source: Pulisen
Features: Overall size less than400um, aperture 60-80um, high strength, good biocompatibility. Dimensional accuracy: overall height 360um, diameter 360um, inner diameter 60um
Insulation components for surgical instruments. Source: Pulisen
Features: Wall thickness 100 microns, high strength, impact resistance, good biocompatibility.
Ceramic blades for artificial hearts. Source: Pulisen
Features: Ultra-high overall surface smoothness, tolerance less than 5 microns, high wear resistance, good biocompatibility
Insulation end caps for endoscopes. Source: Pulisen
Features: Irregular structure, porous structure, minimum wall thickness of 30 microns, multi-material, low cost, fast delivery cycle, customizable even for one piece
Precision Devices——Precision Gear Pumps
Precision gear pump. Source: Pulisen
Features: High precision, tolerance less than 2 microns, long service life, high coaxiality, high wear resistance, acid and alkali resistance
Research Field——Micro-Pore Array Ceramic Substrates
Collaborating with universities and industry chain enterprises to promote technology extension into cutting-edge fields such as brain-machine interfaces and surgical robots.
Utilizing micro-nano3D printing technology, Pulisen can complete the manufacturing of high-precision micro-pore array ceramic substrates in a short time. It can print tens of thousands of pores with a diameter of40 microns and a spacing of100 microns on a 1 square centimeter ceramic piece. Ceramics have better thermal conductivity and strength than glass, thus potentially breaking through in applications that replace glass micro-plates, such as luminous backplanes and chip packaging.
Micro-pore array ceramic substrates. Source: Pulisen
Research Field——Microfluidic Applications
Pulisen’s micro-nano3D printers can manufacture complex microfluidic chip structures, which can be used in various fields such as biological detection and chemical analysis. For example, microfluidic chips manufactured using 3D printing technology can achieve liquid manipulation at the nanoliter scale, used for organoid culture and drug sensitivity testing.
Microfluidic molds. Source: Pulisen
In the future, Pulisen will continue to increase R&D investment, continuously improve the performance and application range of micro-nano3D printing technology, contributing more to the localization of high-end scientific instruments in China.
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