LC Series Large Indexing Chucks
Automatic indexing workholding for large-diameter, large and irregular workpieces with modular configuration.
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 |
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.
Indexing Chuck Selection Tool
Use the KORRETTO selection tool with workpiece dimensions n and m and the maximum rotating envelope Q. The tool checks 2G > Q and the N - n and M - m clearances, showing primary and compact geometric matches.
Indexing Chuck FAQ
What are 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 an LC Series 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.