QB300 series
Quick jaw-change chuck
Suitable for multi-product variable-volume production
QB300 series
- Easy set-up and quick change of top jaw
*CE correspondence
CE correspondence model is QB300N and its specifications are the same as QB300’s except for the jaw release handle.
Product Specification
【Important】The max. draw bar pull force and the max. static gripping force in the following specifications are for external diameter gripping.
When used for internal diameter gripping, the draw bar pull force must be less than half of the max. draw bar pull force.
| Model | QB306 | QB308 | QB310 | QB312 | |
|---|---|---|---|---|---|
| Through-hole (mm) | 45 | 52 | 75 | 91 | |
| Gripping Range (mm) | Max. | 140 | 180 | 210 | 250 |
| Min. | 8 | 15 | 23 | 32 | |
| Jaw Stroke (Diameter) (mm) | 5.5 | 7.4 | 8.8 | 10.6 | |
| Plunger Stroke (mm) | 12 | 16 | 19 | 23 | |
| Max. Draw Bar Pull Force (kN) | 22 | 34 | 43 | 55 | |
| Max. Static Gripping Force (kN) | 57 | 84 | 111 | 144 | |
| Max. Speed (min-1) | 5500 | 4500 | 4000 | 3000 | |
| Moment of Inertia (kg･m2) | 0.058 | 0.173 | 0.318 | 0.745 | |
| Net Weight (kg) (with Soft Top Jaws) | 12.6 | 23.2 | 35 | 56 | |
| Matching Cylinder | S1246 | S1552 | S1875 | S2091 | |
| Matching Soft Jaws | Standard Extra Tall | Standard Extra Tall | Standard Extra Tall | Standard Extra Tall | |
| Outline Drawing |  | | | | |
| DXF |  | | | | |
| DWG |  | | | | |
