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Product Details:
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| Grab Type: | Clamshell Type | Rope Number: | Four Rope |
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| Style: | Mechanical Type | Open Closing Power: | Crane Lifting |
| Volume: | 0.5~45 CBM | Material Density: | 0.8~3.3t/CBM |
| Pulley Rate: | 3~6 | ||
| High Light: | Clamshell Crane Bucket 45CBM,Mechanical Clamshell Crane Bucket,45CBM clamshell grab bucket |
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Four Rope Mechanical Clamshell Grab Bucket
Breif introduction of four rope grab bucket
Four rope grab bucket is suitable for all kinds of cranes with double lifting device structure, each lifting device has double ropes. grab the loose material, reliable work, convenient operation, high efficient, wide application;Widely used in port, wharf, highway and bridge construction industry.
Four rope grab bucket belong to mechanical grab. Mechanical grab itself has no open and close structure, open/close structure is mainly made of rope or linked with the external driving force, according to the operating characteristics,it can be classified into single rope grab, double rope grab, four rope grab, the most commonly used is the double rope grab.
Four rope clamshell grab: Used for port, dock, station freight yard, mines etc site to loading all kinds of bulk cargo, minerals, coal, sand, stone and so on, can also be used for rock excavation, foundation trench excavation, and highway construction, track laying engineering etc.
Working principle for Four Rope Mechanical Clamshell Grab Bucket
in all kinds of crane with two group of motor drum(motor hoist), each group motor drum lead two wire ropes, they make one group wire ropes rooted in the balance frame for supporting, another group of wire rope pass the up beam pulley and the down beam pulley, composite a pulley block as open and close grab bucket.
Work beginning, support wire rope will lift the grab bucket in well place, and then shut down the support rope, rely on the dead weight of the down beam forced the down beam big shaft as center open the grab body. when the two ear plates touch piece smash together, the grab body part open maximum. when opening the grab bucket, the up beam pulley and down beam pulley's center distance increase. and then the support rope put down, the opened grab bucket fall on the captured materials above, and packed around the open and close rope, the up beam pulley and the down beam pulleys' center distance return to its original position. thus completing the capture the grab materials process. in the last, lifting open and close rope and support rope at the same time, the whole grab bucket is lifted, according to the crane, move the grab bucket to the discharge yard, unloading the materials.
Technical Specification Table
| Volume(m3) | Type | Material density(t/m3) |
Pulley multiply power |
Wirerope dia.(mm) |
Pulley dia.(mm) |
Grab self weight(Kgs) |
Crane capacity(t) |
Head size: axbxh (mm) |
Max opening D(mm) |
Remarks |
| 1 | Heavy | >1.8-2.9 | 5 | Φ14 | Φ350 | 2.1 | 5 | 1850x1224x2635 | 2544 | |
| 1.5 | Mid | >1-1.8 | 5 | Φ14 | Φ350 | 2.25 | 5 | 2150x1324x2765 | 2798 | |
| 2.5 | Light | >0.5-1 | 3 | Φ14 | Φ350 | 2.38 | 5 | 2350x1570x2985 | 3227 | |
| 2 | Heavy | >1.8-2.9 | 5 | Φ18 | Φ500 | 3.94 | 10 | 2410x1612x3184 | 3070 | |
| 3 | Mid | >1.0-1.8 | 5 | Φ18 | Φ500 | 4.4 | 10 | 2650x1642x3301 | 3308 | |
| 5 | Light | >0.5-1 | 3 | Φ18 | Φ500 | 4.6 | 10 | 2950x1988x3549 | 3790 | |
| 3 | Heavy | >1.8-2.9 | 5 | Φ21.5 | Φ610 | 6.4 | 15 | 2616x1806x3856 | 3326 | |
| 4.5 | Mid | >1-1.8 | 5 | Φ21.5 | Φ610 | 6.98 | 15 | 2956x1906x4076 | 3756 | |
| 2.5 | Light | 0.86 | 4 | Φ18 | Φ500 | 2.83 | 5 | 2350x1560x3350 | 3150 | |
| 2 | Mid | >1-1.6 | 5 | Φ16 | Φ400 | 2.5 | 5 | 2200x1500x2926 | 3000 | |
| 5 | Heavy | 2 | 6 | Φ19.5 | Φ500 | 9.6 | 20 | 2950x1914x4820 | 5000 | Tooth |
| 1.8 | Heavy | 2-2.8 | 5 | Φ19.5 | Φ500 | 5.5 | 10 | 2150x1470x3340 | 3200 | |
| 9 | Light | 0.95 | 3 | Φ16 | Φ400 | 7.4 | 15 | 3385x2356x4695 | 4900 | |
| 0.5 | Heavy | >1.7-2.5 | 5 | Φ27 | Φ700 | 2 | 5 | 1600x950x2197 | 1800 |
Pictures for reference
Contact Person: Michael
Tel: +8615736987688
