Underwater Dredging Machine Large Dredging Grab Bucket Work with Lifting Mechanism

• Customization: Available
• After-sales Service: 1year and 24 Hour Online Supoort
• Operation Form: Ground Operation
• Warranty: 1 Year
• Certification: CE, ISO9001
• Colour: Optinal
• Sheave Rate: 3
• Usage: for Haldling Bulk Materials
• Painting: Galvanized, Anti Oxidation
• Materials: Hq60, Hq70, Q345
• Transport Package: Standart Export Packing
• Specification: 50 ton
• Trademark: YFM
• Origin: China
• HS Code: 84269900
• Production Capacity: 500

Product Description

 

Company Profile

Shanghai YFM Technology Co., Ltd. is headquartered in Shanghai, integrating design, manufacturing and sales. We have 12 years of professional experience in crane production and 12 years of export experience. Our company specializes in the production of cranes for marine environment transportation operations, which are mainly used for important tasks such as transportation, transfer and replenishment of goods between ships and between ships and shores. Our cranes include: fixed jib cranes, telescopic jib cranes, knuckle boom cranes, ram cranes, large floating cranes, as well as crane accessories grab/auger/basket/seat/spreader/chatter, etc. We offer a range of ocean freight solutions.

Product Description

Dredging grab:

Dredging grab is a kind of equipment used for underwater dredging operations, which carries out efficient dredging operations through grab tools. 

Detailed Photos

How it works: The dredging grab is usually connected to the hull and can be moved back and forth, allowing the dredger to find the target area for dredging in the water. The grab will enter the water, grabbing the sediment from the bottom and lifting it onto the boat. Once the grapple is filled, it will go over the hull and dump the sediment, then the grapple will sink again for the next grab.





 

Applications: Dredging grapples are suitable for a variety of applications, including waterways, harbor pools, and underwater infrastructure projects, and are ideal for dredging dirt, gravel, pebbles, clay, and loose sand. They can be used for construction tasks such as clearing obstacles on the water, abandoned anchors on the seabed, and shipwrecks at sea.

 

Technical parameters: The technical parameters of the dredging grab include the volume, self-weight, grabbing moment, etc. of the grab. The larger the grab, the smaller the dead weight, the larger the grab, and the greater the utilization rate of the crane's lifting capacity. The geometric dimensions of the grab, such as the width of the jaw plate, the back angle of the bottom of the jaw plate, the back angle of the jaw plate, etc., will affect the volume and gripping moment of the grab.

 

Structure: The structure of the dredging grab includes bucket caps, front and rear sticks, landing gear, upper and lower pulley blocks, front and rear bucket flaps, front and rear bucket lips, tooth holders and bucket teeth, etc. The bucket lip and bucket tooth are the direct contact surface of the excavated soil, and the groundbreaking ability is based on the weight of the grab, the speed of lowering to the bottom, and the current of the bucket as important factors.
 

Construction plan: The dredging construction plan of grab dredger includes preparatory work, operation process, etc. Preparation includes checking the overall condition of the dredger, safety checks, setting boundaries and signs of the construction area, preparing the necessary tools and equipment. The operating process includes the lowering of the grab, grabbing, closing lifting and unloading return.

Advantages and disadvantages: The advantages of the grab dredger include the ability to excavate a hard and dense soil layer, the high solid content of the dredged mud, especially suitable for narrow waters, the complex bottom adaptability, not limited by water depth, and good wind and wave resistance. The disadvantages include that the sediment is easy to leak, the diffusion range is large, and it is easy to cause secondary pollution; When the mud layer is thin, the efficiency is greatly reduced; The amount of excavation is small; Mud barges are needed.

 

 

Construction method: The construction method of large steel pile grab dredger is suitable for dredging projects in inland rivers and port projects in coastal areas. The construction method is positioned by steel piles, and the steel piles equipped with the ship are inserted into the seabed to form a plane triangle to fix the ship's position, and the stability of the triangle is used to overcome the influence of external forces such as natural wind, flow and load in construction, so that the ship can be fixed on the water surface and operate safely.

 

How to choose a dredging grab bucket?

1. Small dredging grab bucket: suitable for shallower waters in the range of a few metres to a dozen metres;
2. Medium-sized dredging grab bucket: can usually work in water depths of ten to tens of metres;
3. Large dredging grab bucket: used in conjunction with heavy lifting equipment, they can operate in water depths of tens of metres or even hundreds of metres.

We can derive grabs with different functions according to different needs.
 

YFM company's main products include mechanical claws, electro-hydraulic grabs, remote control grabs, excavator grabs and other types of grabs. We have been engaged in construction machinery for 12 years. We have perfect and reliable production technology, quality inspection and assurance system, and escort high-quality products. There are many styles of our grabs. If you are not satisfied with the existing model, you can contact us. We can customize it according to your actual needs.

Product Parameters

 

Certifications

Our company is mainly engaged in marine cranes and crane grab equipment. He has been in this industry for 12 years. We have a wide range of certifications and qualifications. 

In the past 10 years of operation, we have carried out in-depth exchanges and cooperation with many foreign customers.



 

Our Advantages

 

FAQ

Q1: What information should I provide when I request a quote?  
A: Thanks for your question. The more information you provide, the more accurate solution we can prepare for you! The information such as the lift capacity, span, lift height, power source and other specials you give us will be more appreciated! 

Q2: Is your products customized?      
A: Yes, because of the different work environments, all our products are customized depending on customer requirements! So if you give us more information about the lift capacity, span, lift height, power source  and other specials, we will give you a very quick quote!  
  
Q3: How can we install the crane?      
A: Our senior engineers can provide installation guidance services and training by your side.

Q4: Can you provide the serious lifting tools?      
A: Of course, we can provide any lifting tools according to your requirements, such as lifting slings, lifting clamps, grabs, magnets, or other special products!  

Q5: How about your payment terms?      
A: We accept T/T and L/C as payment methods.