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ACIS (Advanced Computerized Implementation of Standards) is a powerful geometric modeling kernel developed by Spatial Technology, now part of Dassault Systèmes. It provides many CAD (Computer Aided Design) software with a solid modeling engine to create, edit and manipulate 3D objects. The ACIS kernel is used by many leading CAD systems, such as AutoCAD, Inventor, SolidWorks and many more.

The ACIS kernel was first introduced in the late 1980s and has since become one of the most popular geometric modeling kernels available. It is designed to integrate wireframe, surface and solid modeling with manifold and non-manifold topology, as well as a rich set of geometric operations. This allows users to create complex and precise 3D models with ease.

ACIS also provides advanced features for geometry data management, including automatic repair of invalid models, efficient memory management, and multithreading support. This makes it an ideal choice for large-scale engineering projects requiring complex and precise 3D models.

Besides its use as a solid modeling engine, ACIS is also widely used as an interoperability format. The ACIS format is supported by many leading CAD systems, making it an excellent choice for sharing 3D models between different software. The ACIS format can store not only geometric data, but also topology and other model properties. It can be saved in two formats, .sat (ASCII format) or .sab (binary format).

ACIS is an open standard and is continually updated and improved by Dassault Systèmes. This means that it can easily adapt to new industry standards and requirements. It also means that users can rely on the ACIS format to be compatible with future CAD systems and technologies.

In summary, ACIS is a geometric modeling kernel developed by Spatial Technology. ACIS extension is .sat (ascii format) or .sab (binary format).

CAD Interop distributes several softwares to view, exchange and compare ACIS files. Find below the list of our solutions compatible with ACIS format:


CAD Exchanger



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