The 7th Asia Powder Metallurgy International Conference & Exhibition (APMA2025) was successfully held from October 19 to 22, 2025 in Qingdao, Shandong Province. Co-organized by the Powder Metallurgy Industry Technology Innovation Strategy Alliance (CPMA) and the Chinese Society for Metals (CSM), the conference brought together top experts and enterprise representatives in the field of powder metallurgy from home and abroad. BJ Binder Jet Metal/Ceramic Printer independently developed by SANDY Technology3DPTEK-J400PDr. Zong Guisheng, Director of 3D Printing Committee of Powder Metallurgy Industry Technology Innovation Strategy Alliance and Chairman of SANDI Technology, was awarded "Outstanding Contribution Award of Powder Metallurgy".

As an important participant of the conference, SANDI Technology was deeply involved in a number of agendas. Dr. Zong Guisheng served as the chairman of the Additive Manufacturing sub-forum of the conference and gave an invited report on "BJ Binder Jetting Manufacturing", sharing the cutting-edge practice of this technology in promoting the high efficiency and low cost of the powder metallurgy industry.

Dr. Zong Guisheng pointed out in the report that traditional powder injection molding faces pain points such as high mold costs, long development cycles and limited product sizes. Through binder jet (BJ) 3D printing technology, SANDI Technology has realized moldless manufacturing, rapid prototyping of complex structures and large-size parts production, effectively helping the industry to achieve cost reduction and efficiency. Currently, the technology has been applied on a large scale in 3C electronics, automotive, aerospace, AI chip cooling, liquid cooling system and other fields.

BJ Binder Jet Metal/Ceramic Printing System Enables Efficient Precision Manufacturing

SANDI Technology has systematically mastered a full set of key technologies of BJ binder jet metal/ceramic molding equipment, materials and processes. Its 3DPTEK-J160R/J400P/J800P series printing equipment, integrated with precise powder supply, high density powder laying and high precision inkjet control system, to effectively deal with the small particle size powder laying problems, support 400-1200dpi high-resolution printing, the highest molding accuracy of ± 0.1mm, the highest molding efficiency of 3600cc/h. The highest molding efficiency is 3600cc/h.

Figure: SANDY TECHNOLOGY BJ Binder Jet Metal/Ceramic Molding Printer 3DPTEK-J160R/J400P/J800P

In terms of material system, the company has developed more than 20 kinds of process formulations, such as water-based environmentally friendly and solvent-based high-efficiency type, covering a wide range of metal materials such as stainless steel, titanium alloy, high-temperature alloy, as well as ceramic and non-metal materials such as silicon carbide. Through systematic control of the degreasing and sintering process, the company has realized precise control of the shape and performance of the products, and the performance of the products meets and partially exceeds the international standards.

Based on the advantages of "high efficiency, low cost and no thermal stress" of BJ technology, SANDI has made important breakthroughs in the field of heat dissipation, successfully realizing the high-quality molding of copper-diamond, copper-silicon carbide and other composites, and the performance is better than the international standard of MIM. The company implements differentiated equipment strategy, for scientific research institutions and chip design enterprises, to provide scientific research equipment 3DPTEK-J160R, for rapid prototyping and thermal design verification; for liquid-cooled servers and other industrial users, to provide integrated industrial solutions (equipment + special powder / binder + process package), to help customers shorten the process development cycle of 60% or more.

SLM Laser Metal Printing Expands Technology Boundaries with Gradient Material Systems

In addition to binder jetting technology, SANDI Technology has also independently developed metal printing systems including SLM selective zone laser melting equipment AFS-M120/M400, gradient metal equipment AFS-M120X(T), and multi-material additive and subtractive material integration equipment AFS-M300XAS, etc., and completed a variety of stainless steel, titanium alloy, aluminum alloy, die steel, cobalt-chromium alloy, nickel-based alloy and other We have also completed the process development of various materials such as stainless steel, titanium alloy, aluminum alloy, mold steel, cobalt-chromium alloy and nickel-based alloy.

Among them, AFS-M120X(T) can realize the continuous gradient accurate powder supply of two or more metal materials, which is suitable for the research of composite metal material properties; AFS-M300XAS supports the gradient combination of up to four materials, and realizes the continuous gradient change in the horizontal direction, and material composition switching or gradient change in the vertical direction, which is promising for the development of high-throughput materials, aerospace, automotive, medical and mold processing, and other fields. It has broad prospects in the fields of high-throughput material development, aerospace, automotive, medical and mold processing, etc.

SANDI Technology always focuses on the synergistic development of industry, academia and research, and maintains close cooperation with Shenzhen Vocational and Technical University, Shenzhen Tsinghua University Research Institute, Shanghai Jiaotong University, University of Science and Technology of Beijing and other universities and scientific research institutes, and continues to promote the basic research and transformation of BJ technology in the materials, processes and applications, to help industrial molds, high-end cutting tools, 3C electronic precision components and complex large-size shaped ceramic products and other areas of large-scale application. The scale application of BJ technology.

[About SANDI TECHNOLOGY

SANDI Technology is a national high-tech enterprise and a "small giant" enterprise specializing in industrial-grade additive manufacturing (3D printing) equipment and rapid manufacturing services. The company has built a complete industrial chain covering technology research and development, equipment and material production, process support and manufacturing services, and is in a leading position in a number of core technologies such as binder jetting (BJ) in China, and is actively promoting the large-scale application of 3D printing in the fields of casting upgrading, advanced heat dissipation, and precision medical care.