BK250KL | 250 mm 3-Jaw Vertical Through-Hole Pneumatic Chuck
The TOP-TOOL BK250KL is a 250 mm 3-jaw vertical through-hole pneumatic chuck for fixed or vertical mounting applications requiring a through-hole structure.
This air-operated chuck is suitable for setups where the chuck remains fixed and the workpiece requires rear clearance through the chuck body.
Key Features
- Air-operated clamping for repeatable loading and unloading cycles.
- Through-hole or semi-through-hole structure for workpiece clearance.
- Multiple chuck sizes available for different workpiece ranges.
- Technical parameters are provided for model selection.
Typical Applications
- Pneumatic workholding setups
- Repeat loading and unloading operations
- Machining applications requiring air-operated clamping
- Model selection based on chuck size, gripping range and installation method
Selection Notes
- Confirm the workpiece dimensions and required gripping range.
- Check whether a solid, semi-through-hole or through-hole structure is required.
- Review the allowable air pressure, jaw stroke, clamping force and maximum speed.
- Send the machine information and workpiece drawing for technical review before ordering.
Technical Specifications
| Model | BK250KL |
|---|---|
| D | 250 |
| d | 80 |
| L | 340 |
| L1 | 20 |
| L2 | 28 |
| H | 173 |
| H1 | 127 |
| h | 19 |
| p | 30 |
| Power Wedge Serration | 1×53° |
| Matching Jaw Model | BK250Z1 |
| Jaw Stroke t (Diameter, mm) | 4.8 |
| Max. Clamping Force (kN) | 58.7 |
| Max. Expanding Force (kN) | 32.5 |
| Allowable Pressure (MPa) | 0.4–0.8 |
| Clamping Range (mm) | 10–260 |
| Expanding Range (mm) | 30–280 |
| Net Weight (kg) | 40 |
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.
Made with care
Heirloom quality
Premium materials
Classic styling
Styled With
