3BD-08 | 8 in Compensating Hydraulic Chuck with Floating Jaws, A6 Mount
The TOP-TOOL 3BD-08 is a 8 in compensating hydraulic chuck with floating jaws for CNC lathes with an A6 mount. The floating jaw structure allows the clamping points to adapt to uneven, irregular or out-of-round surfaces.
This compensating hydraulic chuck is used when the workpiece surface is not stable enough for conventional jaw clamping. The floating jaw mechanism helps distribute contact more evenly on rough blanks, castings and forged parts.
Key Features
- Floating jaw compensation adapts to uneven or irregular workpiece surfaces.
- Hydraulic actuation supports controlled clamping and release.
- Helps improve contact distribution on rough blanks.
- Suitable when standard hydraulic chucks cannot contact the part reliably.
- Jaw contact surfaces can be matched to the workpiece shape when required.
Typical Applications
- Castings and forged blanks
- Out-of-round workpieces
- Irregular outside profiles
- Rough blanks before finish machining
- Workpieces requiring compensated jaw contact
Selection Notes
- Confirm whether the workpiece surface is irregular, out of round or inconsistent between blanks.
- Check the locating reference before selecting the clamping points.
- Review jaw stroke, compensation range, hydraulic force and maximum speed.
- Confirm spindle nose, drawbar connection and cylinder compatibility.
- For thin-wall or easily deformed parts, compare other precision clamping solutions where appropriate.
Technical Specifications
Main Installation Dimensions
| Model | 3BD-08 |
|---|---|
| Spindle Nose | A6 |
| A | 210 |
| B | 127 |
| C(H6) | 170 |
| D | 133.4 |
| D1 | 106.38 |
| D2 | 32 |
| E | 17 |
| G | 9-29 |
| H | 38 |
| J | 58 |
| L | 61 |
| M | M12*125 |
| N | 67 |
| P | 20 |
| T | 41.5 |
Stroke and Performance Parameters
| Model | 3BD-08 |
|---|---|
| Spindle Nose | A6 |
| Plunger Stroke mm | 20 |
| Jaw Stroke mm | 18 |
| Max Pull kN(kgf) | 19.6(2000) |
| Max Clamping kN(kgf) | 34.3(3500) |
| Max Speed r/min | 3000 |
| Clamping Range mm | 16-65 |
| Compensation Range(Diameter) mm | 6 |
| Moment of Inertia kg·m2 | 0.5 |
| Weight kg | 22 |
| Matching Cylinder | 100 |
| Max Pressure MPa(kgf/cm2) | 2.8(28) |
Request a Quote
This product is supplied by quotation. Send your machine model, workpiece drawing, required clamping method and quantity so that the configuration can be reviewed before ordering.
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