| Modelo | Velocidad de giro |
|---|---|
| R996 | 3.5 RPM. |
| R995 | 3.7 RPM. |
| R994 | 3.7 RPM. |
| R984C | 5.2 RPM. |
| R974B | 5.5 RPM. |
| R964C | 5.6 RPM. |
| R964B | 5.5 RPM. |
| R954C | 5.6 RPM. |
| R944C | 8 RPM. |
| R944B | 6.4 RPM. |
| R934C | 8.2 RPM. |
| R924C | 8 RPM. |
| R924B | 8 RPM. |
| R914C | 9 RPM. |
| R914B | 9 RPM. |
| R904C | 9 RPM. |
| R317 | 9 RPM. |