| 型式 | 電力 | 熔解時間 (公斤/小時) |
||
| KW/KHZ | 鐵(1500度C) | 鋼(1650度C) | 銅(1200度C) | |
| FTH-50M | 50/3 | 75 | 70 | 130 |
| FTH-100M | 100/1-3 | 160 | 150 | 270 |
| FTH-150M | 150/1-3 | 245 | 225 | 450 |
| FTH-200M | 200/1-3 | 345 | 315 | 600 |
| FTH-250M | 250/1-3 | 475 | 430 | 800 |
| FTH-300M | 300.1-3 | 590 | 530 | 1000 |
| FTH-500M | 500/0.5-1 | 1000 | 900 | 1700 |
| FTH-600M | 600/0.5-1 | 1200 | 1090 | 2040 |
| FTH-750M | 750/0.5-1 | 1550 | 1430 | 2550 |
| FTH-1000M | 1000/0.5-1 | 2065 | 1910 | 3400 |
| FTH-1200M | 1200/0.2-1 | 2480 | 2290 | 4080 |
| FTH-1500M | 1500/0.2-1 | 3100 | 2860 | 5100 |
| FTH-1800M | 1800/0.2-0.5 | 3720 | 3435 | 6120 |
| FTH-2000M | 2000/0.2-0.5 | 4130 | 3820 | 6800 |
| FTH-2200M | 2200/0.2-0.5 | 4550 | 4200 | 7480 |