LC Series Large Indexing Chucks
LC Series Large Indexing Chucks
Automatic indexing workholding for large-diameter, large and irregular workpieces with modular configuration.

Series Overview
Automatic indexing workholding for large-diameter, large and irregular workpieces with modular configuration.
Key Features
- Large modular design
- Customization up to 2 m
- 8 × 45° / 6 × 60° automatic indexing
- Approximately 2-minute fixture change
- Patented ball-head master jaw design
- Self-adjusting contact for irregular workpieces
- Confirm the final model against the project drawing
Typical Applications
Suitable for large housings, pump bodies and irregular workpieces. Ball-head master jaws can adapt to the part shape, but the final fixture and clearances require a project check.
Dimensions & Technical Specifications
LC-570A/C, LC-680A/C, LC-800A/C, LC-1000A/C, LC-1200A/C

Outline Dimensions
| Model | A (mm) | B (mm) | C (mm) | D (mm) | G (mm) | J (mm) | K (mm) | M (mm) | N (mm) | P (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| LC-570A/C | 570 | 449 | 380 | 12 | 250 | 125 | 260 | 184 | 184.5 | 510 |
| LC-680A/C | 680 | 499 | 380 | 12 | 300 | 125 | 310 | 239 | 239.5 | 600 |
| LC-800A/C | 800 | 587 | 520 | 15 | 350 | 150 | 350 | 274 | 267 | 750 |
| LC-1000A/C | 1000 | 748 | 720 | 15 | 420 | 201 | 450 | 339 | 344 | 900 |
| LC-1200A/C | 1200 | 948 | 720 | 15 | 530 | 201 | 650 | 439 | 444 | 900 |
Technical Specifications
| Model | Max workpiece (mm) | Max clamping (kN) | Stroke L (mm) | Max speed (rpm) | Spindle nose | Bore (mm) | Net kg |
|---|---|---|---|---|---|---|---|
| LC-570A/C | 500 | 39.3 | 40 | 1200 | A2-15 | 60 | 306 |
| LC-680A/C | 600 | 39.3 | 40 | 1000 | A2-15 | 60 | 412.6 |
| LC-800A/C | 700 | 66.3 | 53 | 800 | A2-20 | 60 | 733.6 |
| LC-1000A/C | 860 | 80 | 65 | 500 | A2-28 | 60 | 1298 |
| LC-1200A/C | 1060 | 80 | 65 | 500 | A2-28 | 60 | 1558 |
Values are transcribed from the supplied KORRETTO reference sheet. Confirm final installation data before release.
Series Selection Notes
In addition to the workpiece size, check 2G > Q, clamping force, clamping piston stroke, in/out range, tool interference, A2-15 / A2-20 / A2-28 interfaces and cycle target.
The chuck opening reference 2G should exceed the workpiece rotation envelope Q; also check tool, fixture and machine-space clearance.
KORRETTO Selection Tool
Indexing Chuck Selection Tool
Enter workpiece dimensions n, m and the maximum rotating envelope Q. Standard models are screened by 2G > Q, N - n ≥ 30 mm and M - m ≥ 30 mm. Q is the maximum envelope during rotation, not a one-side dimension.
KORRETTO Indexing Chuck Selection
Selection Process
Enter the three core dimensions to begin. This is a front-end selection display and does not call an external AI service.
Selection Results
Enter the three core dimensions to begin. This is a front-end selection display and does not call an external AI service.
Indexing Chuck FAQ
What is the LC Series Large Indexing Chucks used for?
Suitable for large housings, pump bodies and irregular workpieces. Ball-head master jaws can adapt to the part shape, but the final fixture and clearances require a project check.
How should the LC Series Large Indexing Chucks model be selected?
In addition to the workpiece size, check 2G > Q, clamping force, clamping piston stroke, in/out range, tool interference, A2-15 / A2-20 / A2-28 interfaces and cycle target.
Need a model and machine-interface check?
Send the workpiece drawing, spindle interface, clamping position, indexing angle and automation requirements.