Front-mounted through-hole pneumatic chuck for front-side installation and through-bore clearance.
BK-TK Front-Mounted Through-Hole Pneumatic Chuck
KORRETTO BK-TK front-mounted through-hole pneumatic chuck is used when the chuck must be installed from the front side and the workpiece or fixture requires through-hole clearance. This page describes the pneumatic chuck structure itself. It is different from the Oil Pipe Thread Chuck page, which is positioned by pipe-threading application rather than by the general front-mounted through-hole pneumatic structure.
Product Overview
The BK-TK front-mounted through-hole pneumatic chuck is selected for layouts where the chuck is mounted from the front side and needs through-bore clearance. It can be used in pneumatic clamping systems where compact installation and workpiece passage are important.
This page only covers the BK-TK front-mounted through-hole pneumatic chuck structure. It must not be treated as the Oil Pipe Thread Chuck page. Oil pipe threading is an application-specific page, while BK-TK is a pneumatic chuck structure page.
Key Features
| Feature | Description |
|---|---|
| Front-mounted structure | Designed for front-side chuck installation layouts. |
| Through-hole design | Provides through-bore clearance for suitable workpieces or fixture layouts. |
| Pneumatic actuation | Uses compressed air for clamping and release. |
| Compact installation option | Useful where rear-side installation or actuation space is limited. |
| Separate from pipe-threading page | This page describes the chuck structure, not a dedicated oil pipe thread application. |
Typical Applications
- Front-mounted pneumatic clamping layouts
- Workpieces requiring through-hole clearance
- Tube, bar or fixture clearance applications
- Compact front-side installation
- Special machines or automation fixtures using pneumatic clamping
Technical Data and Dimensions
Use the drawing and parameter tables to check through-hole size, chuck size, mounting dimensions, jaw stroke, air pressure, clamping force, maximum speed, weight and installation layout.
| Model | D | D1 | D2 | D3 | d | H | H1 | H2 | h | Z × d | Power Wedge Serration | Matching Jaw Model |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BK130TK | 135 | 95 | 108 | 175 | 25 | 133 | 101.5 | 6.5 | 5 | 3-M8 | 1.5×60° | BK130Z2 |
| BK160TK | 175 | 130 | 142 | 219 | 35 | 143 | 107 | 4.5 | 5 | 3-M8 | 1.5×60° | BK160Z2 |
| BK200TK | 214 | 165 | 180 | 258 | 52 | 155 | 115 | 10 | 5 | 3-M10 | 1.5×60° | BK200Z2 |
| BK250TK | 256 | 206 | 226 | 300 | 80 | 166 | 122 | 14.5 | 5 | 3-M12 | 1.5×60° | BK250Z2 |
| BK320TK | 325 | 270 | 290 | 373 | 130 | 213 | 159 | 22 | 5 | 6-M12 | 1.5×60° | BK320Z2-50 |
| BK400TK | 400 | 340 | 368 | — | 170 | 260 | 194 | 23 | 6 | 6-M16 | 1.5×60° | — |
| BK500TK | 500 | 440 | 465 | — | 225 | 314 | 241 | 44 | 6 | 6-M16 | 3×60° | — |
| BK630TK | 630 | 510 | 595 | — | 310 | 347 | 275 | 57 | 8 | 6-M16 | 3×60° | — |
| Model | Jaw Stroke (Diameter, mm) | Max. Clamping Force (kN) | Max. Expanding Force (kN) | Allowable Pressure (MPa) | Max. Speed (r/min) | Clamping Range (mm) | Expanding Range (mm) | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|
| BK130TK | 3.7 | 20.4 | 10.3 | 0.4–0.8 | 3000 | 2–130 | 10–140 | 15 |
| BK160TK | 4.2 | 31.5 | 14.9 | 0.4–0.8 | 2300 | 2–170 | 20–180 | 20 |
| BK200TK | 4.5 | 46.7 | 24.2 | 0.4–0.8 | 1850 | 5–210 | 20–240 | 36 |
| BK250TK | 5.4 | 62.4 | 32.6 | 0.4–0.8 | 1500 | 10–260 | 30–280 | 50 |
| BK320TK | 8.5 | 80.5 | — | 0.4–0.8 | 1200 | 60–350 | — | 95.8 |
| BK400TK | 13.4 | 103.3 | — | 0.4–0.8 | 950 | 70–420 | — | 164 |
| BK500TK | 16.2 | 161.1 | — | 0.4–0.8 | 800 | 70–520 | — | 276 |
| BK630TK | 10.2 | 287.57 | — | 0.4–0.8 | 500 | 70–600 | — | 445 |
Related Pneumatic Chuck Pages
FAQ
What is the BK-TK front-mounted through-hole pneumatic chuck used for?
It is used for front-mounted pneumatic clamping layouts that also require through-bore clearance for the workpiece or fixture.
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. The correct choice depends on clamping force, cycle target, installation layout and available air supply.
When should I choose a front-mounted structure?
Choose it when the machine or fixture layout requires front-side installation, or when rear-side mounting space is limited.
How is it different from a vertical through-hole pneumatic chuck?
A front-mounted through-hole pneumatic chuck is selected for front-side installation layouts. A vertical through-hole pneumatic chuck is selected for vertical mounting layouts. The mounting direction and space condition should be checked separately.
What air pressure should be confirmed?
Check the available operating air pressure, pressure stability and the clamping force margin required for the workpiece.
What machine or fixture interface should be checked?
Check the front mounting interface, through-hole size, jaw stroke, air inlet arrangement and the available installation space before confirming the model.
Can it be used for automated loading and unloading?
Yes. It can be used in automated layouts when the air circuit, part transfer path and safety conditions are properly matched.
What information is needed for quotation?
Provide the workpiece drawing, through-hole requirement, clamping diameter, front mounting condition, operating air pressure, machine interface and target clamping force.