Dome PDC inserts consist of multilayer structure of diamond and transition layer, improving impact resistance greatly, which makes dome PDC inserts the best alternative to be applied in roller cone.
Applicable Bit PositionPriority for rear row teeth, auxiliary for main teeth (only in soft to medium-hard broken formations). It buffers impact, protects main teeth and prevents gravel from damaging the main cutting part.
Flat and smooth tooth surface with large contact area, delivering high cutting efficiency and outstanding wear resistance. Uniform force bearing avoids local wear; high processing precision makes it widely applicable.
Applicable Bit PositionPriority for main teeth, also available for rear row teeth (auxiliary cutting). It crushes formation rocks quickly with high cutting efficiency and provides gauge protection.
Sharp tapered tooth tip with extremely strong penetration, reducing drilling resistance and breaking medium-hard to hard formations quickly. Disperses stress effectively to avoid chipping.
Applicable Bit PositionOnly for main teeth. Its core advantage is sharp penetration for hard formation crushing; not recommended for rear row teeth due to the small contact area.
| Model No. | Diameter (mm) | Total Height (mm) | Diamond Thickness (mm) | Chamfer (mm) |
|---|---|---|---|---|
| S1308 | 13.44 | 8.00 | 2.00 | 0.40 |
| S1313 | 13.44 | 13.20 | 2.00 | 0.40 |
| S1316 | 13.20 | 15.88 | 2.00 | 0.35 |
| S1613 | 15.88 | 13.20 | 2.40 | 0.40 |
| S1913 | 19.05 | 13.20 | 2.40 | 0.30 |
| S1916 | 19.05 | 16.00 | 2.40 | 0.30 |
| S2219 | 22.20 | 19.05 | 2.00 | 0.30 |
| Model No. | Diameter (mm) | Total Height (mm) | Diamond Thickness (mm) | Chamfer (mm) |
|---|---|---|---|---|
| DE1319 | 12.925 | 19.00 | 4.60 | 5.94 |
| DE2028 | 20.00 | 28.00 | 5.40 | 11.0 |




