OUCO supplies leak-proof, versatile, and efficient crane grab buckets for sale. We offer a full range of different grab bucket designs to fulfill your needs.
They have a wide range of capacities and numerous customization options available.
Big or small, clamshell or orange peel type, wireless and hydraulic grab buckets—here you will find what you are looking for.
Grab Bucket Manufacturer
A grab bucket is the grasping device of a lift crane, a loader, or an overhead traveling crane. A crane grab bucket consists of an assembly of hinged jaws to grasp loads and transport them. Grab buckets are used for lifting and short-distance handling of loose and segmented loads, such as timber, coal, or even garbage.
We offer orange peel and clamshell jaws, four-roped and two-roped grab buckets for sale. With our hydraulic and electro-hydraulic designs, you can carry more and carry farther. Remote control will make operating crane grab buckets easy.
You will be able to move up to 15 cubic meters of bulk at a time. Send a request now, you will receive a completely free Design solution!
OUCO Grab Bucket
Why Choose OUCO Grab Buckets?
Grab buckets are important for natural resource shipping purposes. Companies worldwide use OUCO grab buckets to improve loading efficiency, because we can:
- Manufacturing the most comprehensive range of custom grabs.
- Help in gaining certs from major agencies and classification societies.
- Providing more customized features and additional options for customers.
- Showcasing our innovative patented technology and extensive experience.
- Developing specialized handling solutions for various materials.
- Meeting high volume demands with our strong production capabilities.
Simply contact us and we will provide you with a design drawing within 24 hours!
OUCO Produces Types of Grab Bucket
We manufacture a wide range of grab buckets, including:
Electro-hydraulic Grab Buckets: These include Clamshell Grab, Orange Peel Grab, Wood (Timber) Grab, Straw Grab, Rectangular Grab, and Excavator Grab. They are powered by a dedicated power supply or wire set on a bucket crane or material handler.
Mechanical Grab Buckets: These comprise Clamshell Grab, Dredging Grab, Wood Grab, Scissor Grab, Scrap Grab, and Wear-resistant Grab, among others. These grabs operate without the need for an external power supply; instead, wire ropes control the opening and closing of the grab bucket.
Radio Remote Control Grabs: All models of these grabs are battery-powered and do not require an external power supply.
How to choose grab bucket?
The selection of a grab bucket should be based on the SWL (Safe Working Load) of the crane and the specific gravity of the material to be grabbed. To ensure safe and efficient operation, the following formula can be used:
(The capacity of the grab bucket * Specific gravity of the material ) + Dead weight of the grab bucket < Lifting capacity (SWL) of the crane
It is important to select the appropriate grab bucket for the specific material to be handled. By considering the specific gravity of the material, the efficiency of loading and unloading operations can be greatly improved.
For example, light-duty Clamshell Grab is used for coal, heavy-duty Clamshell Grab is used for Stone Material, and Orange Peel Grab is used for Steel Scrap Handling. If you still have questions about choosing a grab bucket, contact us and we’ll provide you with a grab solution!
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Classification by shape
Clamshell Grab Bucket – Also known as dual scoop grabs, generally consists of a double bucket, which is a very common grab bucket with a simple structure.
Orange Peel Grab Bucket (Cactus Grab) – Named after its bucket body, which resembles a peeled orange. It can be designed with 4, 6, or 8 jaws, depending on the grabbing requirements.
In addition, there are some special-shaped grabs, such as log grabs, rectangular grabs, scissor grabs, etc., which are specially designed for grabbing a specific material.
Classification according to the driving method
Electro-hydraulic Grab Bucket – Driven by hydraulic cylinders, with high grabbing efficiency, but need to be powered by external cables, generally requiring customers to wire and install cable reel on the crane.
Mechanical Grab Bucket – Has a simple structure, is cheap and durable, but has no opening and closing structure, and is driven by external force and connecting rods, so the grabbing efficiency is low.
Wireless Remote Control Grab – Currently the most popular grab in the industry. The remote control grab is generally with double scoops, which do not require extra accessories or a power supply. They are battery-powered and can be recharged when the battery is depleted.
According to industry statistics, the biggest contributor to failure and damage is wear and abrasion. The wear parts can be sub-divided into different types of wear conditions:
Wear of shafts and pins
Shaft vibration and friction due to incorrect installation or uneven load distribution
Failure to maintain and lubricate regularly
gland packing and bushing damage
Erosion of sand or sea water when working at sea
Abrasion of bucket cutting edge
The grabbed material is too hard
The cutting edge needs to penetrate into the material frequently
Improper operation, cutting edge touching the ground or ship cabin
The cutting edge wear and thinning caused by the unloading of the grab bucket
Wear of pulleys
Wear of pulley grooves due to long-term use
The wire rope rubs the pulley
Poor contact between pulley and wire rope
The material of the pulley itself is uneven
Improper installation of pulleys
Wear of Wire Ropes
When installing the wire rope, the deviation angle is too large, Causes friction between wire rope and pulley
The wire rope may vibrate during operation and deviate from the pulley groove
Non-compliant manipulation of grabs, Incorrect opening and closing, causing the wire rope to wear or even break
During the grabbing operation, the wire rope collides or rubs against the edge of the cabin
Rust or dirt adhered to the wire rope
Insufficient maintenance and lubrication of wire ropes
Friction caused by tilting of the grab when grabbing material
Yes, please be assured that all OUCO grabs have optimum wear resistance. We are committed to enhancing the service life of our grabs through a variety of measures.
Firstly, we employ high-wear and abrasion-resistant pins and bushings. Secondly, we utilize high-quality carbon steel to enhance the wear resistance of the bucket edge.
In addition, we use different wear-resistant materials and processing techniques according to the different wear parts of grab buckets, thus greatly improving the service life of the grabs and reducing maintenance costs.
The cutting edge and shell of the OUCO grab are made of Hardox 450/500 wear plate. This steel can protect the grab and prevent the material from being worn on the bucket. Of course, its price is slightly more expensive.
Alternatively, you can also choose NM450 steel plate produced in China, a high-strength wear-resistant steel plate that is cost-effective.
If you want to learn more, please do not hesitate to contact our sales staff!
Our design philosophy is about durability. As a professional grab bucket manufacturer, we know that the grab will inevitably collide during the operation, resulting in deformation and cracks of the grab.
Therefore, in order to ensure that the grab is not easily deformed, we have simplified the structure of the grab, and the weight saved is used to strengthen the bucket body and struts.
Through this design, we have not only improved the grabbing and digging capacity of grabs but also the strength and rigidity of the grabs.
Grab head and through beam: Based on strength and durability, we carry out a compact design, so that this part is lighter.
Press rods and scoops: On the basis of sufficient strength, we have increased its collision resistance.
Scoops cutting edge: As a key part of the grab bucket body, damage to the cutting edge plate will leak materials and increase costs. Therefore, we use wear-resistant and thickened materials.
The Clamshell Grab is best suited for materials with regular shapes and small volumes of loose materials, including grain, gravel, sawdust, fertilizers, and sand, among others.
On the other hand, the Orange Peel Grab, equipped with multiple tines, is better suited for handling bulk materials with slightly larger and irregular shapes, such as scrap metal, stones, rocks, garbage, and aggregates.