There are so many grab buckets on the market, how to distinguish and choose? Enjue clamshell bucket will help you understand the clamshell grab bucket.
Although there are many grabs, the most basic as the basic classification, mechanical grabs, and hydraulic grabs.
For customers with budget constraints, mechanical grab is a good choice. What is a mechanical grapple?
a mechanical grapple
Mechanical grab according to the density of the grab material is divided into light (such as grabbing grain), medium (such as grabbing gravel), and heavy (such as grabbing iron ore) three categories; according to the number of claws is divided into clamshell grab and orange peel grab, the most commonly used is the clamshell grab bucket. For large ores, iron chips, steel scrap, etc., it is appropriate to use multi-claw grab (orange peel grab), because it has a multi-claw, cutting sharp, easy to insert into the pile, and you can get a better gripping effect.
successful cases
Choose the plan that suits you best.
Suitable for bulk materials in powder or granular form
Suitable for lumpy or irregular bulk materials
The mechanical grab itself has no opening and closing structure and is usually driven by the external force of the rope or linkage. According to their operating characteristics, they can be divided into single-rope grabs, double-rope grabs, and four-rope grabs. The most common type is the four-rope grab.
The same wire rope is used for the support rope and the opening and closing ropes of the single rope grab. The wire rope is used for support and is alternately opened and closed by a special locking device.
Single rope grabs have a relatively simple winding mechanism but are less productive and are rarely used for large-scale loading and unloading operations.
feature
One wire rope
01
Relatively simple mechanism
02
Lower productivity
03
Suitable for small-scale loading and unloading operations
04
Double rope grab
The double-rope grab has a supporting rope and an opening and closing rope wound on the reel of the supporting mechanism and the opening and closing mechanism, respectively. The double rope grab has reliable performance, easy operation, high productivity, and wide application.
feature
Two ropes
01
Independent opening and closing mechanism
02
Precision operation
03
Short duty cycle
04
The four-rope grapple has two support ropes and two opening and closing ropes; it operates in the same way as the two-rope grapple, but it is better balanced than the two-rope grapple, which reduces the wobbling and tilting of the grapple, and it is longer lasting, which makes it more popular for grabbing large blocks of rock or large industrial waste.
feature
Higher precision in positioning and gripping materials
01
Reduces grapple sway and tilt
02
Rotating and tilting gripping possible
03
Strong gripping capacity, wider range of material adaptability
04
Within the four-rope grab, there is another type of scissor grab that imitates the structural principle of scissors, and its gripping force gradually increases as the jaws close, reaching the maximum value at the end of closing. The bucket opening and material coverage area of the scissor grab is also larger than those of a conventional grab, which increases the grab capacity and helps to clean up the yard and ship's hold. However, its initial gripping force is lower and less effective on large materials.
