Siemens 6FC5357-0BB34-0AE1

High-Performance CNC Control: Siemens 6FC5357-0BB34-0AE1

The Siemens 6FC5357-0BB34-0AE1, known as the NCU 573.4, is a robust CNC control unit built to keep complex machine tools running with precision and reliability. Featuring a 650 MHz processor and 64 MB of memory, it delivers responsive motion sequences, stable path control, and dependable cycle execution for milling, turning, and grinding applications.

Engineered for SINUMERIK Environments

Designed for seamless use within SINUMERIK architectures, the NCU 573.4 integrates smoothly with existing operator panels, drives, and I/O. Its firmware and hardware profile support proven Siemens motion functions, advanced interpolation, and fast block processing, so you can maintain surface quality and reduce cycle times without sacrificing stability.

Reliable Throughput and Motion Quality

With balanced CPU performance and memory, the NCU 573.4 handles real-time trajectory planning and multi-axis coordination with consistency. Shops benefit from tighter tolerances, smoother finishes, and predictable machine behavior—critical metrics when machining high-value parts or running lights-out production.

Service-Friendly Upgrade and Replacement

Whether you're refreshing a legacy control or replacing a failed NCU, the 6FC5357-0BB34-0AE1 is built for straightforward drop-in service. Familiar connectors, clear status indicators, and Siemens diagnostics streamline commissioning, reduce downtime, and simplify maintenance for technicians and integrators.

Built for Industrial Uptime

Industrial-grade components, thermal management, and EMI resilience help the NCU 573.4 operate reliably in harsh shop conditions. The result is fewer unexpected stops, better process stability, and an extended service life for both the controller and connected motion hardware.

In Stock with Warranty and Fast Fulfillment

The Siemens 6FC5357-0BB34-0AE1 is available immediately from MRO Electric and Supply, ships free, and is backed by a 2-year warranty. Fast order processing and knowledgeable support help you restore production quickly and with confidence.

Frequently Asked Questions

What are the processor and memory specifications?

It uses a 650 MHz CPU with 64 MB of memory to execute motion control and CNC logic reliably.

Which systems is it compatible with?

It is designed for SINUMERIK-based CNC environments and pairs with Siemens operator panels, drives, and I/O.

Does it support multi-axis machining?

Yes, it coordinates multiple axes with stable interpolation and fast block processing for complex toolpaths.

Is this a suitable replacement for a failed NCU?

Yes, it's service-friendly with familiar connections and diagnostics, making swap-outs efficient.

How does it improve machining quality?

Consistent path control and responsive processing help achieve tighter tolerances and smoother surface finishes.

Is the configuration complex after installation?

Commissioning is straightforward using Siemens tools and standard parameter workflows common to SINUMERIK.

What industries typically use this unit?

Precision machining, aerospace, automotive, medical device, mold and die, and general job shops.

Is it available right now?

Yes, it is available immediately from MRO Electric and Supply with free shipping.

What warranty coverage is included?

Every unit from MRO Electric and Supply includes a 2-year warranty for added peace of mind.

Can it reduce downtime?

Quick integration, reliable operation, and fast fulfillment help minimize downtime and keep machines productive.

Siemens products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry Accessories from other manufacturers such as FANUC and Yaskawa.

Contact Us Today For More Information About the 6FC5357-0BB34-0AE1

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6FC5357-0BB34-0AE1, take a look at more from our Accessories line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6FC5357-0BB34-0AE1 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.