Manual welding chuck for fixture positioning and synchronized clamping.
Welding Chuck
KORRETTO Welding Chuck is used for welding fixture and positioning applications where the workpiece requires stable manual clamping before welding or assembly. Where a self-centering structure is used, it can also be described as a manual scroll chuck for synchronized positioning.

Product Overview
The welding chuck is selected when the workpiece needs to be positioned and held for welding, assembly or related fixture work. It helps provide repeatable manual clamping support for compatible round or regularly shaped components.
Selection should confirm chuck size, workpiece shape, clamping range, welding fixture layout, mounting interface and required positioning stability.
Key Features
| Feature | Description |
|---|---|
| Welding fixture support | Used for workpiece positioning before welding or assembly. |
| Manual clamping operation | Suitable for fixture and setup work requiring manual control. |
| Scroll chuck structure when applicable | Self-centering versions use synchronized jaw movement for repeatable positioning. |
| Stable positioning support | Helps hold compatible workpieces during welding preparation. |
| Different from machining-only chucks | Selected according to welding fixture layout and positioning needs. |
| Separate from power chucks | Hydraulic and pneumatic chucks are selected separately. |
Typical Applications
- Welding fixture positioning
- Manual welding setup work
- Round or regularly shaped parts before welding
- Assembly positioning
- Repeatable manual clamping for compatible components
- Fixture work requiring stable manual holding
Technical Data and Dimensions
Use the drawing and parameter table to check chuck size, mounting dimensions, clamping range and welding fixture compatibility.

| Size | D1 | D2 | D3 | D4 | H | H1 | H2 | L | Z-d1 | Z-d |
|---|---|---|---|---|---|---|---|---|---|---|
| WP200A | 65 | 82 | 100 | 200 | 67.5 | 39 | 21 | 180 | 6-M6 | 3-M8×35 |
| WP200 | 80 | 100 | 120 | 200 | 67.5 | 39 | 21 | 200 | 6-M6 | 3-M8×35 |
| WP300 | 100 | 120 | 150 | 300 | 67.5 | 39 | 21 | 240 | 6-M6 | 3-M8×30 |
| WP400 | 170 | 220 | 250 | 400 | 95 | 45 | 25 | 300 | 6-M6 | 3-M10×40 |
| WP500 | 240 | 280 | 320 | 500 | 110 | 60 | 25 | 350 | 6-M6 | 3-M12×55 |
| WP600 | 365 | 400 | 425 | 600 | 170 | 105 | 40 | 425 | 6-M12 | 6-M12×110 |
| WP750 | 515 | 542.5 | 570 | 750 | 170 | 105 | 40 | 500 | 6-M12 | 6-M12×110 |
Related Manual Chuck Pages
FAQ
What is a welding chuck used for?
It is used to position and hold compatible workpieces for welding fixture, assembly or related setup work.
Is this also a scroll chuck?
If the welding chuck uses a self-centering scroll mechanism, it can also be described as a manual scroll chuck for synchronized positioning.
Is it mainly for machining or welding?
This page focuses on welding fixture and positioning applications. Machining chuck selection should be confirmed separately if cutting loads are involved.
What should be checked before ordering?
Check chuck size, workpiece shape, clamping range, fixture layout, mounting interface and required positioning stability.
Is this a hydraulic or pneumatic chuck?
No. This is a manual welding chuck. Hydraulic and pneumatic chucks are separate product lines.
Can it be used for every welding part?
Not always. Suitability depends on workpiece shape, fixture layout, clamping surface and required positioning accuracy.