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| Model | Maximum lifting capacity |
| SL15 | 30,000 lbs. (13,608 kg) |
| SL25 | 50,000 lbs. (22,680 kg) |
| SL35II | 70,000 lbs. (35,000 kg) |
| SL50II | 100,000 lbs. (45,360 kg) |
| SL70 | 140,000 lbs. (63,504 kg) |
| SL80 | 176,000 lbs. (80,000 kg) |
| SL100 | 200,000 lbs. (90,700 kg) |
| SL150 | 300,000 lbs. (136,079 kg) |
| SL200 | 400,000 lbs. (181,440 kg) |
| SL300 | 600,000 lbs. (272,160 kg) |
| SL500 | 1,000,000 lbs. (453,600 kg) |
| ISL15 | 30,000 lbs. (13,608 kg) |
| ILS30B | 60,000 lbs. (27,216 kg) |
| ILS40B | 80,000 lbs. (36,288 kg) |
| ILS50B | 100,000 lbs. (45,360 kg) |
| ILS55B | 110,000 lbs. (49,896 kg) |
| ILS80 | 160,000 lbs. (72, 576 kg) |
| ISL100 | 200,000 lbs. (90,719 kg) |
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