# INDEX-TRAUB TNL20-9B

Hardware · `TNL20-9B` · verification: source checked

The INDEX-TRAUB TNL20-9B is a sliding-headstock automatic lathe for bar stock up to 20 mm diameter. It has a 10,000 rpm main spindle and adds a B-axis with a 105-degree swivel angle. Its technical data lists 8-station tool units and multiple slide travels.

## Specification

| Property | Value |
|---|---|
| Category | cnc lathe |
| Spindle max | 10000 rpm |
| Spindle power | 3 kW |
| Rapid traverse | 40 m/min |
| Bar capacity | 20 mm |
| Spindle torque | 5.73 N·m |

## Connected

- Manufacturer: [INDEX-TRAUB](https://machineschema.com/manufacturer/index-traub.md)

## Safety

- When the optional iXcenter robot cell is used, it is fixed in front of the work area during production; the machine's sliding guard opens automatically behind the cell.

## Study notes

- Main spindle 40% duty ratings are 5.5 kW and 10.5 Nm.
- C-axis resolution: 0.001 degree.
- B-axis swivel angle: 105 degrees.
- Z slide travel is listed as 205 mm (swiss type) and 80 mm (non-swiss type).
- Tool units in the technical data include 8 stations at 8,000 rpm and 12,000 rpm; slide data include X 235.5/165/120 mm, Z 258/567.5/155 mm, and Y ±25.4 mm.
- Optional equipment listed: integrated robot cell iXcenter and 19-inch touch-screen.
- Control options listed: TRAUB TX8i-s V7 and TX8i-s V8; these are not in the controller reference list.

## Sources

1. [Langdrehautomat TRAUB TNL20](https://www.index-group.com/en/products/sliding-headstock-machines/traub-tnl20) (accessed 2026-10-26)

---

Source page: https://machineschema.com/hardware/index-traub-tnl20-9b  
JSON: https://machineschema.com/hardware/index-traub-tnl20-9b.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.