KB120 | Through-Hole Rubber-Flex Expanding Collet Chuck
The TOP-TOOL KB120 Through-Hole Rubber-Flex Expanding Collet Chuck is designed for internal expansion clamping of through-hole workpieces.
The through-hole structure supports workpieces with internal bores and is selected according to clamping range, bore size and mounting requirements.
Key Features
- Rubber-flex clamping provides broad contact around the workpiece.
- Suitable for workpieces requiring stable, repeatable and surface-sensitive clamping.
- Different series support through-hole, blind-hole, inner-stop, expanding, air-operated, accessory and multi-spindle applications.
- Model selection is based on clamping range, chuck size, mounting method and repeatability requirement.
Typical Applications
- Round, square or hexagonal workpieces
- Thin-wall or surface-sensitive parts
- Workpieces requiring broad contact clamping
- Repeat CNC workholding applications
- Applications where jaw marks or point contact should be reduced
- Rubber-flex collet setup, changeover or preparation workflows where applicable
Selection Notes
- Confirm the workpiece shape and clamping diameter.
- Check whether the application requires through-hole, blind-hole, inner-stop, expanding, air-operated or multi-spindle clamping.
- Review clamping range, mounting method and repeatability.
- Confirm whether a chuck assembly, replaceable rubber-flex collet element or supporting tool is required.
- Send the workpiece drawing and machine information for technical review before ordering.
Technical Specifications
| Model | KB120 |
|---|---|
| Product Type | Through-Hole Rubber-Flex Expanding Collet Chuck |
| Clamping Method | Internal expansion |
| Bore Type | through-hole internal expansion |
| Clamping Range | 36–54 |
| Chuck Size | 36–54 |
| Repeatability | ±0.25 |
| Mount Type | M44×1.5 |
| Purchase Mode | Request a Quote |
| Model | KB120 |
| D [mm] | 139 |
| L [mm] | 130 |
| O [mm] | 35 |
| h [mm] | 10 |
| Clamping Range d [mm] | 36–54 |
| M | M44×1.5 |
| M1 | M30×1.5 |
| Matching Collet | SB120 |
| Type | Pull-back |
| Stroke [mm] | 1.5+2 |
| Max. CL [mm] | 43 |
| Recommended Workpiece Tolerance [mm] | ±0.25 |
| Expanding Mandrel Type | Through-Hole Expanding Chuck |
Request a Quote
This product is supplied by quotation. Send your machine model, workpiece drawing, clamping range, required repeatability and quantity so that the configuration can be reviewed before ordering.