SR-20RIII
The evolution for complex turned parts
...plus advanced technology
The new SR-20RIII appears in a new futuristic design and offers the latest in
technology:
- newest FANUC control type 300 is
built-in spindle with cooling for main side
- automatic programme optimisation
- servomotor for adjustment of collets on main/back side
Further, there are many additional very efficient functions
Those helped
to considerably improve the working ergonomics:
- rapid speeds of 35 m/min
- 2 additional tool stations for deep drilling up to 100 mm
- more efficient and faster
Tool kinematics

Specifications SR-20RIII |
| CNC control unit |
Fanuc 300 is |
| Number of axes |
7 |
| Max. machining diameter |
Ø 20 mm (23 mm option) |
| Max. headstock stroke |
205 mm standard |
| Max. main spindle speed |
10'000 rpm |
| Main spindle indexing |
C-axis (0.01°) |
| Main spindle motor |
2.2 kw / 3.7 kw |
| Number of tool stations |
Gang tool post |
6 turning tools (12x12 mm) |
| 5 power-driven tool stations |
| 4-Spindle sleeve holder |
4 tools frontworking |
| 4 tools backworking (interpolation possible) |
| 2-Spindle sleeve holder |
Front drilling unit for deep drilling |
| Max. drilling capacity |
Ø 10 mm 4-spindle sleeve holder |
| Ø 8 mm power-driven attachment |
| Max. tapping capacity |
M8 x 1.25 4-spindle sleeve holder |
| M6 x 1.0 power-driven attachment |
| Max. milling capacity |
Ø 10 mm |
| Coolant tank capacity |
170 L |
| Dimension (W x D x H) |
2200 x 1200 x 1700 mm |
| Weight |
2200 kg |
| |
Backworking attachment SR-20RIII |
| Max. chucking diameter |
Ø 20 mm (23 mm option) |
| Max. pick-up part length |
80 mm |
| Max. part protection length |
30 mm |
| Max. sub spindle speed |
8'000 rpm |
Sub spindle indexing |
C-axis (0.01°) optional |
| Sub spindle motor |
1.5 kw / 2.2 kw |
| Number of tool stations |
4 stationary or power-driven tools |
| Max. drilling capacity |
Ø 8 mm stationary tools |
| Ø 5 mm power-driven tools |
| Max. tapping capacity |
M8 x 1.25 stationary tools |
| M4 x 0.7 power-driven attachment |
| Max. feed rate |
all axes 35 m/min |
* Specifications are subject to change