BK250KQ | 250 mm 3-Jaw Semi-Through-Hole Pneumatic Chuck
The TOP-TOOL BK250KQ is a 250 mm 3-jaw semi-through-hole pneumatic chuck for applications requiring partial rear clearance while retaining a compact air-operated chuck structure.
The semi-through-hole design provides additional clearance for suitable workpieces without using a full through-hole structure. Confirm the workpiece geometry and required clearance before ordering.
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 | BK250KQ |
|---|---|
| D | 250 |
| D1 | 206 |
| D2 | 226 |
| d | 80 |
| H | 154 |
| H1 | 108 |
| H2 | 90.5 |
| h | 5 |
| p | 30 |
| Z × d | 3-M12 |
| 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 |
| Max. Speed (r/min) | 2800 |
| Clamping Range (mm) | 10–260 |
| Expanding Range (mm) | 30–280 |
| Net Weight (kg) | 32 |
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
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