Shanghai ENJUE Machinery Equipment Co., Ltd is one of the most experienced manufacturers and suppliers of mechanical grab bucket in China. If you're going to buy custom mechanical grab bucket made in China, welcome to get more information from our factory. For price consultation, contact us.
Products Description
Mechanical Rope Clamshell Grabs are available in single-rope, double-rope, and four-rope configurations, making them fully compatible with port cranes, ship cranes, and crawler winch cranes. Manufactured from NM400, NM500, or Hardox wear-resistant steel, these grabs are built to withstand demanding working conditions while maintaining exceptional durability. The mechanical grab can be opened and closed either on the ground or in the air, offering flexible operation to suit various handling scenarios.
They are ideal for efficiently handling bulk cargo such as coal, sand, grain, ore, and wood chips. Customized grabs and attachments are also available to meet specific application requirements. Combining high efficiency with reliable performance, our products are backed by comprehensive global service support.
Design Drawing
Main Technical Parameter
Below are the main technical parameters of the 15T 9CBM Single Rope Grab Bucket, which we designed according to customers' requirements, for reference only
|
Model |
SRG15-9-6.5 |
|
|
Crane SWL (t) |
15 |
|
|
Grab SWL(t) |
8.5 |
|
|
Grab dead weight(t) |
6.5 |
|
|
Grab volume(m3) |
9 |
|
|
Piled density(t/m3) |
0.9 |
|
|
Ropes dimension(mm) |
28 |
|
|
Sheave dimension(mm) |
560 |
|
|
Ropes multiple |
3 |
|
|
Parameter(mm) |
A |
4586 |
|
B |
6450 |
|
|
C |
3350 |
|
|
D |
4280 |
|
|
E |
3000 |
|
|
Opening and Closing up miles (mm) |
200 |
|
|
High in use (m) |
12.5 |
|
The difference between single rope grab and double rope grab
Single-Rope Grab Bucket
This bucket performs all functions - hoisting, lowering, opening/closing, and positioning - through a single wire rope. Its streamlined, uncomplicated design simplifies rigging on compatible cranes and speeds up installation. Well-suited for small- to medium-scale bulk material tasks, it adapts easily to various site conditions, operates with great flexibility, and demands minimal upkeep.
Double-Rope Grab Bucket
This grab bucket uses two dedicated wire ropes: one handles hoisting while the other controls the jaw mechanism. The result is a balanced, consistent clamping force with precise handling and significantly higher payload capacity. Built for heavy-duty, high-frequency continuous loading and unloading, it delivers superior productivity - making it the go-to choice for high-volume terminals, large storage yards, and other demanding operations.
Key Distinctions
The two designs differ primarily in rope layout, control logic, load capability, and ideal use cases. The single-rope variant wins on simplicity, lower cost, and quick deployment - fitting standard medium and light-duty work. The double-rope variant separates the drive lines, distributes stress more evenly, and pushes the load ceiling higher, delivering greater stability and throughput - making it the preferred solution for heavy-load, high-cycle environments.
application
The mechanical grab is a highly versatile lifting attachment engineered for grabbing, lifting, and transferring bulk and irregular materials. Its adaptability has made it an indispensable tool across a wide range of industries:
Port and Vessel Handling
Mechanical grabs are extensively used to load and unload commodities such as coal, iron ore, grain, and bauxite on ships. At container terminals, orange peel grabs efficiently handle steel slag, recycled plastics, and other bulk scraps. When mounted on floating cranes, they perform dredging operations in ports, canals, and riverbeds. Grabs installed on ship unloaders feed bulk solids directly onto conveyors, enabling continuous and efficient unloading.
Stockyard and Quarry
In stockyard and quarry operations, mechanical grabs are employed to build and reclaim stockpiles of coal, fertilizer, and cement clinker. Clamshell buckets load lime, aggregates, and sand into hoppers or crushers. Gantry crane grabs transfer ore between silos and railway wagons, streamlining material flow across the site.
Metallurgy and Building Materials
In the metallurgical and building materials sectors, grabs feed clinker silos and remove slag from steel ladle stations. They are also used to transfer limestone, iron ore, and coke for batching and blast furnace feeding. Additionally, they support material processing in power plant yards, furnaces, and silos.
Waste and Municipal Environmental
For waste management and municipal environmental applications, orange peel grabs in scrap yards handle mixed metal waste, cartons, and plastics. They also facilitate the transfer of municipal waste among barges, trucks, and sorting stations, contributing to more efficient waste handling and recycling processes.
Timber Industry
In the timber industry, mechanical grabs are used to stack and sort timber. Clamshell grabs move wood chips and sawdust to hoppers or stockpiles, supporting smooth and efficient handling of wood-based materials.
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