Vertical through-hole pneumatic chuck for three-jaw clamping and through-bore clearance.
BK-KL 3-Jaw Vertical Through-Hole Pneumatic Chuck
KORRETTO BK-KL 3-jaw vertical through-hole pneumatic chuck is designed for vertical installation layouts where the workpiece or fixture requires through-hole clearance. It combines three-jaw pneumatic clamping with a vertical through-hole structure and should be selected separately from vertical solid, semi-through-hole and front-mounted through-hole pneumatic chucks.
Product Overview
The BK-KL 3-jaw vertical through-hole pneumatic chuck is used in vertical or fixture-based setups where air-actuated clamping and through-bore clearance are both required. The vertical through-hole structure makes it different from solid pneumatic chucks and semi-through-hole pneumatic chucks.
This page only covers the BK-KL 3-jaw vertical through-hole pneumatic chuck. It does not cover BK-SL vertical solid or BK-KQ semi-through-hole pneumatic chuck structures.
Key Features
| Feature | Description |
|---|---|
| Vertical installation layout | Designed for vertical or fixture-based pneumatic clamping setups. |
| Through-hole structure | Provides through-bore clearance for suitable workpieces or fixtures. |
| 3-jaw pneumatic clamping | Suitable for round or near-round workpieces. |
| Clear separation from solid type | Different from BK-SL vertical solid pneumatic chuck. |
| Air-actuated clamping | Uses compressed air for clamping and release. |
Typical Applications
- Vertical clamping layouts
- Fixture-based pneumatic clamping
- Workpieces requiring through-bore clearance
- Round parts requiring three-jaw clamping
- Automation or workstation clamping setups
Technical Data and Dimensions
Use the drawing and parameter tables to check through-hole size, chuck size, installation dimensions, jaw stroke, air pressure, clamping force, speed, weight and vertical mounting conditions.
| Model | D | d | L | L1 | L2 | H | H1 | h | p | Power Wedge Serration | Matching Jaw Model |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BK160KL | 172 | 30 | 238 | 20 | 28 | 155 | 119 | 19 | 20 | 1×53° | BK160Z1 |
| BK200KL | 210 | 40 | 290 | 20 | 28 | 158.5 | 122.5 | 19 | 25 | 1×53° | BK200Z1 |
| BK250KL | 250 | 80 | 340 | 20 | 28 | 173 | 127 | 19 | 30 | 1×53° | BK250Z1 |
| BK320KL | 325 | 120 | 415 | 20 | 28 | 243 | 182 | 22 | 32 | 1.5×60° | BK320Z2-60 |
| BK400KL | 400 | 120 | 500 | 20 | 28 | 272 | 198 | 30 | 40 | 1.5×60° | — |
| Model | Jaw Stroke t (Diameter, mm) | Max. Clamping Force (kN) | Max. Expanding Force (kN) | Allowable Pressure (MPa) | Clamping Range (mm) | Expanding Range (mm) | Net Weight (kg) |
|---|---|---|---|---|---|---|---|
| BK160KL | 3.7 | 32.9 | 18.5 | 0.4–0.8 | 2–170 | 20–180 | 18.6 |
| BK200KL | 4.2 | 49.1 | 29.1 | 0.4–0.8 | 5–210 | 20–240 | 28 |
| BK250KL | 4.8 | 58.7 | 32.5 | 0.4–0.8 | 10–260 | 30–280 | 40 |
| BK320KL | 9.5 | 106.1 | 62.2 | 0.4–0.8 | 10–350 | 40–360 | 86 |
| BK400KL | 12.7 | 137.8 | 77 | 0.4–0.8 | 15–420 | 50–430 | 170 |
Related Pneumatic Chuck Pages
FAQ
What is the BK-KL vertical through-hole pneumatic chuck used for?
It is used for vertical clamping layouts that require both three-jaw pneumatic clamping and through-hole clearance.
How is it different from a hydraulic chuck?
A pneumatic chuck uses compressed air for clamping and release, while a hydraulic chuck uses hydraulic pressure. Final selection depends on the required clamping force, cycle rate, air supply and machine layout.
What air pressure should be confirmed?
The available compressed air pressure, pressure stability and the safety margin for the required clamping force should be checked before the model is confirmed.
What machine or fixture interface should be checked?
The vertical mounting method, bolt pattern, installation space, air inlet arrangement and workpiece clearance path should be checked before installation.
How should through-hole, semi-through-hole and solid structures be selected?
Choose a through-hole pneumatic chuck when the workpiece or fixture needs full center passage. Choose a semi-through-hole chuck when only partial internal clearance is required. Choose a solid chuck when no through-hole passage is needed.
Can it be used for automated loading and unloading?
Yes. It can be used in automation or workstation clamping layouts when the air supply, control sequence and safety conditions are properly matched.
What should be checked before installation?
Check the mounting direction, air line routing, through-hole clearance, jaw stroke, workpiece range and interference envelope before installation.
What information is needed for quotation?
Provide the workpiece drawing, required through-hole size, clamping diameter, vertical layout, operating air pressure, machine interface and target clamping force.