| Features |
| 1) Saving energy |
| 2) Strong wind power |
| 3) Convenient to move |
| 4) Make low noise and light weight due to die-casting aluminum alloy. |
| 5) With good capacity, the reasonable structure and the strong suction. |
| Application |
| 1) It’s special manufactured for underground cable maintains, shipping making. |
| 2) Blowing bad gas when welding shipbuilding, canning, bridge. |
| 3) Exhaust for firefighting, piping construction and in other violent working situation for ventilation. |
Technical Parameters
| model no. | diameter | voltage | Frequency | speed | watts | capacity | static |
| CTF | mm | V | Hz | r/min | w | m³/min | pa |
| CTF-25 | 250 (10”) | 220～240 | 50/60 | 2800/3300 | 300/350 | 45/55 | 295/350 |
| CTF-30 | 300 (12”) | 220～240 | 50/60 | 2800/3300 | 500/550 | 65/77 | 385/450 |