Production Introduction
The unloading arm is mainly used for loading/handling operations of coal/sandstone/sand-like ore/silt in railway/sea terminal 1 coal field/mine field, etc., with high construction efficiency. Therefore, it can also be called the shell-shaped bucket of the coal unloading excavator, and the shell-shaped bucket of the dredging excavator: Excavator clamshell buckets (clamshell grabs) are tailor-made according to customer needs, with hydraulic rotary and without hydraulic rotary; The clamshell grab without hydraulic rotation adopts the oil circuit of the bucket cylinder of the excavator, without additional hydraulic valve blocks and pipelines; The clamshell grab with hydraulic rotation needs to be controlled by adding a set of hydraulic valve block and pipeline, and the oil cylinder is equipped with a piston protection device.Technical Parameters：
The grab technical parameters| Model | Unit | TN120 | TN200 | TN300 | TN400 |
| Weight | kg | 900 | 1500 | 2200 | 2700 |
| Maximum open | mm | 1000 | 1850 | 2050 | 2200 |
| Bucket voiume | m³ | 0.8 | 1.5 | 2.5 | 4 |
| Height | mm | 1600 | 2050 | 2250 | 2350 |
| Excavator tonnage | T | 12-16 | 20-27 | 30-38 | 40-49 |
Product Show：
Our company can make various modifications and customize corresponding auxiliary equipment for excavators. Those who are interested can contact our company directly.