Diamond-coated milling burs for Yunjia dental milling machines, designed for wet machining of glass ceramic restorations including lithium disilicate (IPS e.max), feldspathic ceramic, Vita Suprinity, and Celtra Duo. Three configurations with φ4mm smooth shank (collet-clamped) support single crowns, inlays, onlays, veneers, and anterior bridges.
| Compatible Machines | Yunjia |
|---|---|
| Interface Type | φ4mm Smooth Shank |
| Material Category | Glass Ceramic |
| Configurations | 3 |
| Order No | Specification | Head Ø | Neck | Shank | Length | Inquiry |
|---|---|---|---|---|---|---|
| G-4-0.6 | φ0.6×TL8×φ4×L40 | 0.6 | 8 | 4 | 40 | 1 |
| G-4-1.0 | φ1.0×TL10×φ4×L40 | 1 | 10 | 4 | 40 | 1 |
| G-4-2.5 | φ2.5×TL15×φ4×L40 | 2.5 | 15 | 4 | 40 | 1 |
The φ2.5mm head diameter is suited for roughing and bulk material removal in glass ceramic blocks; the φ1.0mm and φ0.6mm heads are suited for finishing and fine detail work in restorations such as veneers, inlays, onlays, and anterior bridges.
These burs are not intended for milling metals, composites, or for dry milling applications.
All three configurations use a φ4mm smooth shank that is collet-clamped. This is not a threaded shank.
The burs are designed for Yunjia milling machines that accept φ4mm smooth-shank, collet-clamped tools. Check your machine's tool holder specification before ordering.
They are intended for wet milling of glass ceramics: lithium disilicate (IPS e.max), feldspathic ceramic, Vita Suprinity, and Celtra Duo.
The φ2.5mm head is suited for bulk material removal and roughing. The φ1.0mm head handles intermediate contouring. The φ0.6mm head is for fine details and finishing in restorations such as veneers, inlays, and onlays.
Monitor surface finish quality, edge chipping on the ceramic, increased spindle load, or visible loss of diamond coating. Replace when these signs appear rather than relying on a fixed unit count.
No. These burs are specified for wet milling only. Dry milling glass ceramics with these tools is outside the intended application.
These are aftermarket burs manufactured by SINCEN Dental, designed to fit Yunjia machines with φ4mm smooth-shank collet clamping. They are not OEM Yunjia parts.