Motor-hydraulic clamshell grab is specially designed for charging and discharging bulk materials and is to be fitted on cranes with one single drum (ship board cranes). SGMC supplies various cubic size of motor-hydraulic clamshell grabs. Or the grab cubic capacity can be changeable with kick plates. So grab can be used to discharging cargos with various piled density under limited crane SWL, If the ships cranes are not executed with accessories yet, SGMC can also supply accessories which need to be mounted on your ships cranes for operation of the grabs. (SGMC GRAB)
| Type | Density | Volume | Grab Weight | Motor output kw | Close time | Operating Pressure | Crane SWL | |
| t / m3 | m3 | kg | 380V 50Hz | 440V 60Hz | s | Kg/cm2 | t | |
| DYP6-2.0-1.5-00 | 1.5 | 2.0 | 3000 | 11 | 11 | 220 | 6 | |
| DYP8-3.1-1.5-00 | 1.5 | 3.1 | 3300 | 15 | 13 | 220 | 8 | |
| DYP10-4.2-1.5-00 | 1.5 | 4.2 | 3600 | 22 | 17 | 220 | 10 | |
| DYP12-4.5-1.5-00 | 1.5 | 4.5 | 5200 | 22 | 17 | 220 | 12 | |
| DYP16-6.8-1.5-00 | 1.5 | 6.8 | 5800 | 22 | 18 | 220 | 16 | |
| DYP20-8.6-1.5-00 | 1.5 | 8.6 | 7000 | 30 | 18 | 220 | 20 | |
| DYP24-10-1.5-00 | 1.5 | 10 | 9000 | 37 | 20 | 220 | 24 | |
| DYP28-12.3-1.5-00 | 1.5 | 12.3 | 9500 | 45 | 22 | 220 | 28 | |
| DYP30-13.3-1.5-00 | 1.5 | 13.3 | 10000 | 45 | 22 | 220 | 30 | |
| DYP32-14.3-1.5-00 | 1.5 | 14.3 | 10500 | 45 | 22 | 220 | 32 | |
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