Sirona CEREC MC XL Dental Milling Machine
The Sirona CEREC MC XL (Milling Chamber eXtra Large) is a chairside CAD/CAM milling unit built for practices that want fast, precise single visit restorations. Compared with the earlier CEREC milling unit Sirona designed it to be faster, quieter and more precise, with a larger milling chamber and an easier to use interface.
Key features of the Sirona CEREC MC XL
- High precision: Sirona specifies tolerances of ±25 µm with finer milling steps than the previous unit.
- Faster milling: Sirona reported up to 60% shorter milling times than the earlier CEREC unit.
- Quieter operation: Sirona claimed noise levels about 40% lower than the previous unit.
- Two milling motors: The dual motor design supports efficient grinding of ceramic blocks.
- Larger milling volume: The bigger chamber and large door make the unit easier to access and load.
- Illuminated milling chamber: Colored light shows status at a glance: white for milling, blue for scanning, green for finished and red for a fault.
- Network-ready: The unit connects over LAN or WLAN and integrates into existing practice networks.
- Single-visit dentistry: It produces inlays, onlays, crowns and veneers chairside, with materials such as feldspar and glass ceramics.

Technical specifications
| Specification | Sirona CEREC MC XL |
|---|---|
| Manufacturer | Sirona (Dentsply Sirona) |
| Model | MC XL (D3439) |
| Application | Chairside CAD/CAM milling and grinding |
| Milling motors | 2 |
| Precision | ±25 µm |
| Connectivity | LAN / WLAN |
| Power requirements | 100–230 V, 50/60 Hz [verify for your unit] |
| Dimensions | approx. 27.5 × 16.7 × 16.5 in (70 × 42.5 × 42 cm) [verify] |
| Weight | approx. 95 lb (43 kg) [verify] |
| Compatible acquisition units | CEREC Bluecam / Omnicam [verify for your software version] |
| Software and licensing | [Confirm CEREC software version and any required dongle or license] |

