SC Series Compact Indexing Chucks
A compact indexing solution for smaller spindles, smaller CNC lathes and limited installation space.
SC Series Compact Indexing Chucks
A compact indexing solution for smaller spindles, smaller CNC lathes and limited installation space.

Series Overview
A compact indexing solution for smaller spindles, smaller CNC lathes and limited installation space.
Key Features
- A2-4 spindle nose
- Up to 4000 rpm
- 8 × 45° / 6 × 60° automatic indexing
- Fully sealed construction
- 1 arc-minute indexing accuracy and repeatability below 0.01 mm
- Approximately 1-minute fixture change
- Custom fixture and connection options
Typical Applications
Suitable for smaller valve bodies, fittings and multi-angle parts. Confirm the workpiece envelope, A2-4 interface, clamping position and tool clearance.
Dimensions & Technical Specifications
SC-G145A/C
Outline Dimensions

| Model | A (mm) | B (mm) | C (mm) | D (mm) | G (mm) | J (mm) | K (mm) | M (mm) | N (mm) | P (mm) |
|---|---|---|---|---|---|---|---|---|---|---|
| SC-G145A/C | 145 | 102 | 110 | 4 | 50 | 15 | 60 | 29.6 | 27.5 | 164 |
Technical Specifications

| Model | Max workpiece (mm) | Max clamping (kN) | Stroke L (mm) | Max speed (rpm) | Spindle nose | Bore (mm) | Net kg |
|---|---|---|---|---|---|---|---|
| SC-G145A/C | 100 | 3.3 | 9 | 4000 | A2-4 | 35 | 9.3 |
Series Selection Notes
Check 2G > Q, the workpiece rotation envelope, clamping force, 9 mm stroke, A2-4 spindle nose and automation interface.
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 SC Series Compact Indexing Chucks used for?
Suitable for smaller valve bodies, fittings and multi-angle parts. Confirm the workpiece envelope, A2-4 interface, clamping position and tool clearance.
How should an SC Series model be selected?
Check 2G > Q, the workpiece rotation envelope, clamping force, 9 mm stroke, A2-4 spindle nose and automation interface.
Need a model and machine-interface check?
Send the workpiece drawing, spindle interface, clamping position, indexing angle and automation requirements.