On December 24, China Additive Manufacturing Industry Alliance and National Additive Manufacturing Product Quality Inspection and Testing Center (Jiangsu) released the 2025 Additive Manufacturing Quality Products List in the 2025 Additive Manufacturing Industry Development Forum and Additive Manufacturing Industry Annual Meeting, and Beijing SANDY Technology Co., Ltd.'s self-developed 4-meter super-large-size 3DP casting sand printer, 3DPTEK-J4000, was honored on the the list.

Figure: SANTI TECHNOLOGY 4 meters 3DP casting sand printer 3DPTEK-J4000

Equipment order hotline: 13811566237

For aerospace, electric energy, heavy machinery and other fields in the manufacture of ultra-large castings in the long-standing problems of long production cycle, high cost of molds, complex structure molding difficulties, 3DPTEK-J4000 with a number of innovative technologies to provide solutions:

Its innovative "no sand box flexible area molding technology" not only breaks through the size limitations of traditional casting, supporting a maximum of 4 meters of sand integrated manufacturing, but also to achieve a very competitive cost control.

This technology, combined with high-precision nozzle and intelligent algorithms, can realize the integral molding of thin-walled, multi-dimensional curved surfaces and complex cavities (such as the spiral cooling water channel) of large components, solving the efficiency, cost and welding defects arising from the traditional process of making large parts that require segmental casting and then welding. Practical application shows that the technology can make large and complex castings to shorten the production cycle of more than 50%, for example, will weigh 1 ton of aluminum alloy castings delivery time from 60 days to 15 days compressed significantly.

The company also provides open-source material process system, which can be adjusted according to the user's needs; supporting high-performance resin binder, curing agent, cleaning agent, to ensure the quality and stability of molding.

Based on 30 years of accumulation of powder laying technology, SANDI Technology has independently developed full-size 3DP casting sand and SLS casting sand/wax series printers from millimeters to meters, which can satisfy the manufacturing needs of products of different sizes and materials, and help users maximize their productivity with lower unit cost and shorter delivery time. 

Figure: SANDY TECHNOLOGY 3DP Casting Sand Printer 3DPTEK-J1800/J1800S/J2500

Figure: SANDY Technology SLS Casting Sand/Wax Printer AFS-500/LaserCore-5300/LaserCore-6000

The honor of being on the list of 2025 additive manufacturing quality products is a full affirmation of SanDi Technology's adherence to independent innovation and deepening of the path of industrialization. Starting from 3D printing, upgrading manufacturing with digital technology. In the future, SANDI Technology will continue to help more manufacturing enterprises realize quality and efficiency improvement and transformation and upgrading through its leading equipment, materials and full chain service capabilities, and contribute to the development of new quality productivity.

[About SANDI TECHNOLOGY

(3D Printing Technology, Inc.) 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/3DP) 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.