Excavators Grapple
Excavators grapple (also known as Lotus Grab or Steel Grabber) is a special tool evolved from hydraulic excavator, which is mainly used to grab and load all kinds of bulk or lumpy materials.
The following is a detailed introduction about the excavators grapple:
I. Basic Definition and Function
Definition:
Excavators grapple is a machine for grabbing steel materials, which is generally evolved from hydraulic excavator.
Its main function is to carry out the grasping and loading operation of various materials such as scrap metal, industrial waste, gravel, construction waste, domestic waste and so on.
Function:
As an effective tool for handling scrap steel, pig iron, ore, rubbish and other large irregular materials, the excavators grapple is able to cooperate with the excavator to carry out the handling of fixed heavy objects, such as stones, wood, metal scraps and other large and heavy objects, thus making up for the single function of the digging bucket that can only dig.
2. the Structure and Composition
Grab arm:
commonly known as “excavators grapple”, generally longer, used to support and move the steel grabber.
Grabber:
that is, the grabber, also known as plum blossom hydraulic grab, orange petal grab, is the core component of the Lotus grab.
It is mainly composed of main plate, back plate, bucket ear plate, bucket teeth, guard plate and other spare parts, and realises opening and closing movement through the drive of hydraulic cylinder.
Hydraulic cylinder:
as a driving part, it controls the opening and closing of the gripper through the pressure change of hydraulic oil.
Connection parts:
including fixed hinge seat, hydraulic oil pipe and supporting hydraulic integrated control circuit, etc., used to achieve the connection and control of the hydraulic system.
3. the Working Principle
The working principle of the Lotus Grab is based on the hydraulic transmission system.
Through the control handle, the operator can control the expansion and contraction of the hydraulic cylinder, which in turn controls the opening and closing of the steel grab.
When it is necessary to grasp the material, the steel grabber is closed under the drive of the hydraulic cylinder, and the material is firmly grasped; when it is necessary to release the material, the steel grabber is opened under the drive of the hydraulic cylinder, and the material is put down.
In addition, the Lotus Gripper also has four petals and five petals, as well as rotating and non-rotating, and the connection mode is divided into fixed and swinging to meet different operational needs.
4. Performance Characteristics
Strong grasping ability:
it can grasp all kinds of loose or lumpy materials, especially suitable for loading and unloading heavy materials such as scrap steel and pig iron.
Flexible operation:
the steel grabber can control the movement individually, and the use of space is flexible and easy to operate. When digging work is needed, the hydraulic grab can be put away without affecting the digging operation; when it is needed to be used, the function of grabbing can be realised.
Wide range of application:
not only applicable to construction sites, demolition work and other occasions, but also widely used in steel enterprises, ports, wharves and other material handling areas.
Low cost and high benefit:
through low-cost transformation to make the excavator with the function of gripping heavy objects, but also expand the use of the excavator space and use occasions. Compared with the excavator reconfigured grapple, its use cost savings of one-third.
Brands:Volvo/KOBELCO/Komatsu
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Service：
1.Sample service: samples are provided according to customers’ instruction.
2. Customied services: goods can be customized according to customers’demand.
3. One year warranty, some additional products will be supplied next time if they are in bad condition.
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