Sizer 323 was designed for Windows XP and Windows 7 (32-bit). On Windows 10 or 11 64-bit, it will likely crash, fail to install, or throw DLL errors.
A: No official portable version exists. Portable versions found online are almost always modified (and dangerous).
A: To drive sales of their drives and motors. The software is a sales tool, not a revenue generator.
Yes—absolutely. Siemens has historically distributed Sizer as freeware. You do not need a paid license, a dongle, or an activation key. The software is provided at no cost to support engineers in designing systems using Siemens products. siemens sizer 323 download free
However, there is a critical nuance: Siemens no longer hosts Sizer 323 directly on its main public download page. The company encourages users to adopt the newer Sizer 2025 tool. But because Sizer 323 is still needed for legacy support, Siemens occasionally makes it available through:
Warning: Avoid third-party “free download” sites offering Sizer 323. These often bundle adware, spyware, or outdated cracked versions. Always download directly from Siemens’ official domains (siemens.com, support.industry.siemens.com).
Verdict: High Risk / Industrial Tool Misidentification Sizer 323 was designed for Windows XP and Windows 7 (32-bit)
Users searching for "Siemens Sizer 323 download free" are likely looking for Siemens SIZER for Motors, a sophisticated engineering tool used for configuring and sizing drive trains. However, the specific addition of "323" suggests a misunderstanding of the software versioning or a potential trap set by software pirates.
Here is a detailed breakdown of the situation.
Yes, at the time of its release, Siemens offered Sizer 3.2.3 as a free-of-charge download to any registered user on the Siemens Automation website. You did not need to pay a license fee. You only needed a free Siemens web account (Industry Online Support registration). Verdict: High Risk / Industrial Tool Misidentification Users
Why? Because Siemens makes its money selling the hardware (drives, motors) – not the selection software. Giving away Sizer for free encouraged customers to specify Siemens components.
A quick Google search for "Siemens Sizer 323 download free" will lead you to file-sharing sites, torrents, or obscure engineering forums. You might find a ZIP or ISO file labeled "Sizer 3.2.3."
Do not download these. Here is why: