Type D long-taper 3-jaw self-centering scroll chuck for manual lathe workholding.
3-Jaw Self-Centering Chuck, Type D
KORRETTO 3-Jaw Self-Centering Chuck Type D is a manual lathe scroll chuck that combines synchronized jaw movement with a long-taper mounting interface. It is used for manual lathe setups where regular workpieces require quick centering and the machine uses a Type D mounting arrangement.
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Product Overview
The Type D 3-jaw self-centering chuck is selected when the machine requires a long-taper interface and the workpiece can be clamped by synchronized jaw movement from the internal scroll mechanism. This Type D version is a 3-jaw scroll chuck with a long-taper mounting interface.
It supports round and regular workpieces in general turning operations. Selection should confirm chuck size, long-taper spindle information, mounting dimensions, workpiece diameter, clamping range and machine compatibility.
Key Features
| Feature | Description |
|---|---|
| Long-taper self-centering scroll chuck | Type D manual scroll chuck for machines requiring long-taper mounting. |
| Self-centering 3-jaw action | Moves the jaws together toward the center. |
| Manual scroll chuck design | Suitable for conventional lathe workholding. |
| Efficient for regular workpieces | Used for round, hexagonal and similar workpiece profiles. |
| Different from independent chucks | Not intended for separate jaw offset adjustment. |
Typical Applications
- Long-taper spindle setups
- Round and regular workpieces
- General turning operations
- Manual lathe clamping
- Chuck replacement for compatible machines
- Repeated loading of similar workpieces
Technical Data and Dimensions
Use the drawing and parameter table to check chuck size, long-taper spindle number, mounting dimensions, clamping range, net weight and machine compatibility.
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| Size | D | D1 | D2 | D3 | D4 | H1 | h | h1 | z-d | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 125/D3 | 125 | 53.975 | 70.6 | 30 | 92 | 63 | 13 | 10 | 3-M10×1 | — |
| 125/D4 | 125 | 63.513 | 82.6 | 30 | 117 | 63 | 13 | 10 | 3-M10×1 | — |
| 160/D3；160A/D3 | 160 | 53.975 | 70.6 | 40 | 92 | 76 | 13 | 10 | 3-M10×1 | 10 |
| 160/D4；160A/D4 | 160 | 63.513 | 82.6 | 40 | 117 | 71 | 13 | 10 | 3-M10×1 | 10 |
| 160/D5；160A/D5 | 160 | 82.563 | 104.8 | 40 | 146 | 71 | 15 | 12 | 6-M12×1 | 10 |
| 200/D4；200C/D4；200A/D4 | 200 | 63.513 | 82.6 | 50 | 117 | 86 | 13 | 10 | 3-M10×1 | 17 |
| 200/D5；200C/D5；200A/D5 | 200 | 82.563 | 104.8 | 50 | 146 | 86 | 15 | 12 | 6-M12×1 | 17 |
| 200/D6；200C/D6；200A/D6 | 200 | 106.375 | 133.4 | 65 | 181 | 86 | 16 | 13 | 6-M16×1.5 | 17 |
| 250/D5；250C/D5；250A/D5 | 250 | 82.563 | 104.8 | 70 | 146 | 95 | 15 | 12 | 6-M12×1 | 31 |
| 250/D6；250C/D6；250A/D6 | 250 | 106.375 | 133.4 | 80 | 181 | 98 | 16 | 13 | 6-M16×1.5 | 32 |
| 250/D8；250C/D8；250A/D8 | 250 | 139.719 | 171.4 | 80 | 225 | 98 | 18 | 14 | 6-M20×1.5 | 32 |
| 325/D6；325C/D6；325A/D6 | 325 | 106.375 | 133.4 | 102 | 181 | 103.5 | 16 | 13 | 6-M16×1.5 | 51 |
| 325/D8；325C/D8；325A/D8 | 325 | 139.719 | 171.4 | 102 | 225 | 103.5 | 18 | 14 | 6-M20×1.5 | 51 |
| 325/D11；325C/D11；325A/D11 | 325 | 196.869 | 235 | 105 | 298 | 103.5 | 20 | 16 | 6-M22×1.5 | 53 |
| 380/D8；380C/D8；380A/D8 | 380 | 139.719 | 171.4 | 130 | 225 | 118 | 18 | 14 | 6-M20×1.5 | 81 |
| 380/D11；380C/D11；380A/D11 | 380 | 196.869 | 235 | 135 | 298 | 118 | 20 | 16 | 6-M22×1.5 | 81 |
| 500A/D11 | 500 | 196.869 | 235 | 190 | 298 | 135 | 20 | 16 | 6-M22×1.5 | 159 |
| 500A/D15 | 500 | 285.775 | 330.2 | 210 | 403 | 135 | 21 | 17 | 6-M24×1.5 | 159 |
| 630D8 | 630 | 139.719 | 171.4 | 136 | 225 | 150 | 18 | 14 | 6-M20×1.5 | / |
| 630D11 | 630 | 196.869 | 235 | 190 | 298 | 150 | 20 | 16 | 6-M20×1.5 | / |
Related Manual Chuck Pages
FAQ
What is a Type D 3-jaw self-centering chuck?
It is a manual 3-jaw self-centering chuck with a Type D long-taper mounting interface.
How is it different from a 3-jaw independent chuck?
A self-centering chuck moves all jaws together. An independent chuck allows each jaw to be adjusted separately.
When should I choose Type D?
Choose Type D when the machine spindle and mounting arrangement require a long-taper chuck interface.
What workpieces is it best suited for?
It is best suited for round, hexagonal and other regular workpieces that can be centered by synchronized jaw movement.
What information is needed for selection?
Provide chuck size, long-taper spindle information, workpiece diameter, clamping range, machine model and required accuracy.
Is this also called a scroll chuck?
Yes. This Type D chuck is a self-centering scroll chuck with a long-taper mounting interface.