How to select the right four-rope grab for your specific application?

I. Technical Features of the four-rope grab bucket
Structural Composition:

Four wire ropes control opening, closing, and lifting, resulting in a stable structure and strong gripping force.

It typically consists of jaw plates, support rods, upper and lower crossbeams, pulley blocks, and a steel wire rope system.

The material is mostly high-strength wear-resistant steel, suitable for heavy-duty and high-frequency operations.

Driving Method:

Used in conjunction with a double-drum crane, one rope for opening and closing, and the other for lifting.

It enables integrated operation of gripping, handling, and unloading.

Applicable Cranes:

Suitable for gantry cranes, bridge grab unloaders, floating cranes, etc.

Select Method:

Select the jaw plate shape and material based on the four rope clamshell grab on the type of material (such as coal, ore, or grain).

Select a grab with appropriate volume and weight based on the crane's rated lifting capacity and working class.

Consider the compatibility of the wire rope diameter with the crane's drum.

Cost Considerations of the grab bucket:

In addition to the purchase price, factors such as service life, maintenance costs, and energy efficiency need to be evaluated.

Application Scenarios:
Port terminals: Used for loading and unloading bulk cargo such as coal, ore, and grain.

Power plants and steel mills: Used for stacking and reclaiming coal, iron ore powder, and scrap steel.

Mines and stockyards: Used for material transfer, stacking, and loading onto trucks.

Inland waterway transportation: Used in conjunction with floating cranes for loading and unloading sand, gravel, cement, etc.

Frequently Asked Questions and Solutions