Passive collet chuck for systems using machine-side or external actuation.
JT-W Passive Collet Chuck
KORRETTO JT-W passive collet chuck is used when the collet clamping movement is provided by the machine, fixture or external mechanism instead of an integrated air or hydraulic actuator. It is suitable for round parts and compact workholding layouts where the actuation system is already defined by the machine design. This page covers the JT-W passive series only.
Product Overview
The JT-W passive collet chuck is selected when the chuck itself does not need a built-in pneumatic or hydraulic actuator. It is used as part of a workholding system where clamping and release are driven by the machine-side mechanism or a matched external actuator.
Selection should confirm the external actuation method, collet range, mounting interface, stroke, locating method and workpiece requirements.
Key Features
| Feature | Description |
|---|---|
| Passive collet chuck structure | Designed for systems where actuation is provided externally. |
| Compact workholding use | Suitable for fixture or machine-side integration. |
| Round-part clamping | Used for shafts, sleeves and cylindrical components. |
| No integrated air/hydraulic actuator | The actuation method must be confirmed with the machine layout. |
| Separate JT-W series | Do not mix with active pneumatic or hydraulic collet chuck pages. |
Technical Data and Dimensions
Use the drawing and parameter table to check the collet range, mounting interface, stroke, external actuation method and matching workpiece layout.
| Model | ΦA | ΦB | ΦC | D | E | F | G | H | Matching Collet |
|---|---|---|---|---|---|---|---|---|---|
| JT-W20 | 70 | 100 | 45 | 7 | 77 | 93 | 85 | 4-M8 | W20 |
| JT-W25 | 70 | 100 | 50 | 7 | 76 | 98 | 85 | 4-M8 | W25 |
| JT-W32 | 80 | 110 | 60 | 7 | 77 | 104 | 95 | 4-M8 | W31.75 |
FAQ
What is a passive collet chuck?
It is a collet chuck used with an external or machine-side actuation mechanism rather than an integrated air or hydraulic actuator.
What is the JT-W passive collet chuck used for?
It is used for compact collet workholding where the machine or fixture provides the clamping and release movement.
Is this the same as a hydraulic collet chuck?
No. Hydraulic collet chucks include hydraulic actuation. JT-W is a passive series that depends on the matched external actuation layout.
What information is needed for selection?
Provide the workpiece drawing, clamping diameter, collet type, external actuation method, stroke, mounting interface and locating requirement.
When should I choose a passive collet chuck?
Choose it when the machine or fixture already provides the actuation movement and the chuck needs to act as the collet holding unit.