Type A short-taper 3-jaw self-centering scroll chuck for manual lathe setups.
3-Jaw Self-Centering Chuck, Type A
KORRETTO 3-Jaw Self-Centering Chuck Type A is a manual scroll chuck that combines synchronized jaw movement with a short-taper mounting interface. It is used for round and regular workpieces on machines requiring a Type A mounting arrangement.
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Product Overview
The Type A 3-jaw self-centering chuck is selected when the machine spindle requires a short-taper interface and the workpiece can be held by synchronized jaw movement from the internal scroll plate. This Type A version is a 3-jaw scroll chuck with a short-taper mounting interface.
It supports efficient centering and clamping for general turning operations. Selection should confirm chuck size, short-taper number, mounting dimensions, clamping range, workpiece diameter and machine compatibility.
Key Features
| Feature | Description |
|---|---|
| Synchronized 3-jaw clamping | Moves the jaws together for quick centering. |
| Type A short-taper interface | Used when the machine requires a short-taper mounting style. |
| Type A self-centering scroll chuck | Short-taper manual scroll chuck with synchronized three-jaw movement. |
| Good for regular workpieces | Designed for round, hexagonal and similar profiles. |
| Different from independent chucks | Not intended for individual jaw offset adjustment. |
Typical Applications
- Round workpieces
- Hexagonal workpieces
- General lathe turning
- Short-taper spindle setups
- Manual chuck replacement
- Repeated clamping of regular parts
Technical Data and Dimensions
Use the drawing and parameter table to check chuck size, short-taper number, mounting dimensions, clamping range, net weight and machine compatibility.
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| Size | D | D1 | D2 | D3 | D4 | D5 | H1 | h | h1 | h2 | d1 | z-d | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200/A:5 200C/A:5 200A/A:5 | 200 | 82.563 | 61.9 | 40 | 133 | 104.8 | 84 | 14.288 | 12 | 6.5 | 16.3 | 3-M10 | 17 |
| 250/A:6 250C/A:6 200A/A:6 | 250 | 106.375 | 82.6 | 55 | 165 | 133.4 | 98 | 15.875 | 13 | 6.5 | 19.5 | 6-M12 | 31 |
| 325/A:6 325C/A:6 325A/A:6 | 325 | 106.375 | 82.6 | 55 | 165 | 133.4 | 106 | 15.875 | 13 | 6.5 | 19.5 | 6-M12 | 30 |
| 325/A:8 325C/A:8 325A/A:8 | 325 | 139.719 | 111.1 | 78 | 210 | 171.4 | 106 | 17.462 | 14 | 8 | 24.2 | 6-M16 | 52 |
| 380/A:8 380C/A:8 380A/A:8 | 380 | 139.719 | 111.1 | 78 | 210 | 171.4 | 118 | 17.462 | 14 | 8 | 24.2 | 6-M16 | 53 |
| 500/A:11 | 500 | 196.869 | 165.1 | 125 | 280 | 235 | 135 | 19.050 | 16 | 10 | 29.4 | 6-M20 | 159 |
| 500/A:15 | 500 | 285.775 | 247.6 | 200 | 380 | 330.2 | 135 | 20.638 | 17 | 10 | 35.7 | 6-M24 | 159 |
| Size | D | D1 | D3 | D4 | D5 | H | h | h1 | h2 | d1 | z-d | Net Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 200/A:4 200C/A:4 200A/A:4 | 200 | 63.513 | 60 | 108 | 82.6 | 86 | — | 10 | 6.5 | 14.7 | 3-M10 | 17 |
| 500/A:11 | 500 | 196.869 | 190 | 280 | 235 | 135 | 20 | 16 | 10 | 29.4 | 6-M20 | 159 |
Related Manual Chuck Pages
FAQ
What is a Type A 3-jaw self-centering chuck?
It is a manual 3-jaw self-centering chuck with a Type A short-taper mounting interface.
What does self-centering mean?
The jaws move together toward the center, helping round or regular workpieces locate quickly.
When should I choose Type A?
Choose Type A when the lathe spindle and mounting arrangement require a short-taper chuck interface.
Is this suitable for irregular parts?
It is mainly suitable for regular workpieces. Irregular parts may require an independent chuck or special fixture.
What information is needed for selection?
Provide chuck size, short-taper number, workpiece diameter, clamping range, machine model and required centering accuracy.
Is this also called a scroll chuck?
Yes. This Type A chuck is a self-centering scroll chuck with a short-taper mounting interface.