This type of grab is for four rope operated cranes. Two Holding Ropes and Two Closing Ropes. The grabs are specially designed for charging and discharging sand, gravel and other bulk materials. The grabs can be executed with leak-proof clamshell depending on the job and the type of material to be handled. The grabs are manufactured of high wear resistant steels. All bearings are heavy-duty and sealed for high performance. (SGMC GRAB)
| Type | Volume | Density | Crane Capacity | Grab Weight | Cargo Weight | Pulley Dia |
| (m3) | (t / m3) | (t) | (t) | (t) | (mm) | |
| CS3-1.1-1.5-00 | 1.1 | 1.5 | 3 | 1.3 | 1.7 | Æ350 |
| CS5-2.0-1.5-00 | 2.0 | 1.5 | 5 | 2.0 | 3.0 | Æ445 |
| CS8-3.2-1.5-00 | 3.2 | 1.5 | 8 | 3.2 | 4.8 | Æ520 |
| CS10-4.0-1.5-00 | 4.0 | 1.5 | 10 | 4.0 | 6.0 | Æ560 |
| CS12-5.0-1.5-00 | 5.0 | 1.5 | 12 | 4.5 | 7.5 | Æ620 |
| CS16-6.8-1.5-00 | 6.8 | 1.5 | 16 | 5.8 | 10.2 | Æ650 |
| CS20-8.4-1.5-00 | 8.4 | 1.5 | 20 | 7.4 | 12.6 | Æ700 |
| CS24-10-1.5-00 | 10.0 | 1.5 | 24 | 9.0 | 15.0 | Æ800 |
| CS28-12-1.5-00 | 12.0 | 1.5 | 28 | 10.0 | 18.0 | Æ820 |
| CS30-13-1.5-00 | 13.0 | 1.5 | 30 | 10.5 | 19.5 | Æ880 |
| CS35-15-1.5-00 | 15.0 | 1.5 | 35 | 12.5 | 22.5 | Æ920 |
| CS40-17-1.5-00 | 17.0 | 1.5 | 40 | 14.5 | 25.5 | Æ1050 |
| CS50-21-1.5-00 | 21.0 | 1.5 | 50 | 18.5 | 31.5 | Æ1100 |
| CS60-25-1.5-00 | 25.0 | 1.5 | 60 | 22.5 | 37.5 | Æ1150 |
| CS70-30-1.5-00 | 30.0 | 1.5 | 70 | 25.0 | 45.0 | Æ1200 |
| CS80-35-1.5-00 | 35.0 | 1.5 | 80 | 27.5 | 52.5 | Æ1250 |
| CS90-39-1.5-00 | 39.0 | 1.5 | 90 | 31.5 | 58.5 | Æ1300 |
| CS100-43-1.5-00 | 43.0 | 1.5 | 100 | 35.5 | 64.5 | Æ1350 |
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Scissors Clamshell Grab
Single Rope Clamshell Grab
Two Rope Clamshell Grab
Four Rope Clamshell Grab