Generations
| Model | Size | Built around | Used market | Enclosed cab |
|---|---|---|---|---|
| Hitachi EX120 | 12-20 t | 1990 | common | 100% |
| Hitachi EX120-2 | 12-20 t | 1992 | very common | 100% |
| Hitachi EX120LC | 12-20 t | 1993 | rare | — |
| Hitachi EX120-3M | 12-20 t | 1994 | rare | — |
| Hitachi EX120-3 | 12-20 t | 1995 | common | 100% |
| Hitachi EX120-2A | 12-20 t | 1995 | rare | — |
| Hitachi EX120G-3 | 12-20 t | 1995 | rare | — |
| Hitachi EX120-5F | 12-20 t | 1997 | rare | — |
| Hitachi EX120-5 | 6-12 t | 1998 | common | 100% |
| Hitachi EX120LC5 | 12-20 t | 2000 | rare | — |
| Hitachi EX120-5E | 12-20 t | 2000 | rare | — |