Grab bucket
Description
The four-rope grab bucket is mainly used together with bridge or door lifting with two sets of hoisting drum to grab all kinds of loose accumulation and carry out loading, unloading, stacking and so on. According to the type of grab material and user’s requirement, the forms of parallel girder opening and underwater operation can be designed.
Components
- Upper beam (or head)
- Pull rod
- Lower beam (or beam)
- Bucket section
Technical parameter
| Volume
(m3) |
Type | Proportion of materials
(t/m3) |
Fetching material weight(t) | pulley ratio | Cable
diameter (mm) |
Pulley diameter
(mm) |
Grab weight
(t) |
Bucket
L*W (C*Emm) |
Wide open dimensions
(Dmm) |
| 0.3 | light | ≤0.6 | 0.18 | 2 | Φ11 | Φ150 | 0.68 | 1020*700 | 1200 |
| 0.3 | heavy | ≤1 | 0.3 | 2 | Φ11 | Φ150 | 0.9 | 1020*720 | 1200 |
| 0.5 | light | ≤0.8 | 0.4 | 2 | Φ13 | Φ160 | 0.86 | 1100*830 | 1470 |
| 0.5 | heavy | ≤1.2 | 0.6 | 2 | Φ15 | Φ160 | 1.2 | 1100*835 | 1470 |
| 0.75 | light | ≤0.8 | 0.7 | 2 | Φ15 | Φ160 | 1.1 | 1100*1235 | 1470 |
| 0.75 | heavy | ≤1.2 | 0.9 | 2 | Φ15 | Φ160 | 1.3 | 1100*1235 | 1650 |
| 0.75 | super heavy | ≤2.4 | 1.6 | 2 | Φ19 | Φ180 | 2.04 | 1580*1100 | 2000 |
| 1 | light | ≤1 | 1 | 2 | Φ15 | Φ160 | 1.5 | 1400*1250 | 2000 |
| 1 | heavy | ≤1.2 | 0.6 | 2 | Φ15 | Φ160 | 1.2 | 1100*835 | 1470 |
| 1.5 | light | ≤1 | 1.5 | 2 | Φ15 | Φ180 | 1.8 | 1500*1300 | 2300 |
| 1.5 | heavy | ≤1.8 | 2.7 | 2 | Φ15 | Φ200 | 2.5 | 1550*1300 | 2300 |
| 1.5 | super heavy | ≤2.4 | 3.75 | 3 | Φ19.5 | Φ250 | 3.8 | 1600*1350 | 2500 |
| 3 | heavy | ≤2.5 | 7.5 | 3 | Φ23.5 | Φ350 | 7 | 2300*1800 | 3000 |
| 9 | light | ≤1 | 9 | 3 | Φ23.5 | Φ400 | 6.2 | 3350*1990 | 4280 |
| 15 | light | ≤1 | 15 | 3 | Φ28 | Φ460 | 10.3 | 4000*2500 | 5800 |
Use and maintenance matters
- When using, remove the fixed block on the grab so that the grab can open and close freely;
- Check the oil holes and fill the butter;
- Check whether the joints are loose or loose, and tighten them first;
- Adjust the wire rope before operation to keep the grab in free balance.
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