Description

Cutter suction dredger is a kind of ship that is widely used in beach dredging projects. It uses the front end of suction pipe. The cutter suction pipe is equipped with a rotating cutter device to cut and agitate the river bottom sediment, and then through the suction pipe, the sl Mud, mud transport, mud unloading and other work processes can be completed continuously at one time. It is a high-efficiency, low-cost dredger and a good underwater excavating machine. Considering the convenience of customers in other countries, the cutter suction dredger designed and produced by the OCEAN PUMP can be easily loaded into containers for transportation. The split structure makes the installation and transportation of the cutter suction boat simpler and more flexible, can be easily transported to any location. With its robust design, it is the preferred choice in its class due to low maintenance, excellent fuel consumption and high productivity levels.

Working principle

A cutter suction dredger is positioned on spuds and anchor winches to ensure the vessel is firmly anchored during dredging. The cutter ladder is lowered. By pulling on the side wires, the cutter head is moved sideways, swinging around the main spud. The cutter suction dredger moves forward by means of the spud carriage.

The cut material together with a large quantity of water is drawn into the suction mouth. This soil and water mixture is then transported by the dredge pump through the large discharge pipeline for further transport to the designated site.

The dredged material is pumped into the floating pipelines for transport over large distances to the designated area. The dredged material can also be transported by barge.

Cutter suction dredger
Cutter suction dredger
Cutter suction dredger

Cutter suction dredger Features:

  1. Efficiency and high performance due to the pump, gearbox and fresh-water engine cooling system
  2. Engine mounted in the centre pontoon for protection and low noise levels
  3. Urable heavy-duty marine engine
  4. Safe and robust pump drive.
  5. The cutter suction dredger could be used in inland waterways, lakes, coastal areas for projects of desilting and sand dredging.
  6. Customized according to dredging depth, working capacity and discharge distance.
  7. The cutter suction dredger is of dis-mountable structure, and can be divided into mechanical type, semi-hydraulic type, all-hydraulic type according to the different operating methods.
  8. Dredging pump is driven by main diesel engine placed in the main pontoon, and auxiliary engine will provide power to cutter head, winches, spuds and lighting system.

Customer requests:

Mr. James, someone working in dredging from Singapore, contacted us on Feb. 6th, 2021.  His company charged a dredging project locally, now they need a cutter suction dredger to start, because the sediments are mostly silt and sand. If using the jet suction dredger, the silt couldn’t be jetted up smoothly. After receiving this inquiry, we made a Whatsapp group at first, including the customer and our engineers. Then we started to ask the working condition locally, such as the water depth, dredging depth, discharge distance and the sand capacity they expect.

Through the simple communication, we learned the following working conditions：

  1. Water depth: 7 m
  2. Total dredging depth: 10 m
  3. Sand and silt capacity: 150 cubic meters per hour
  4. Discharge distance: 500 m

According to the above information, we choose some models in different pump types for the cutter suction dredger firstly. Then we received the detailed sand analysis report form the James. “It’s really help a lot,” our engineer (Mr. Mee) said, “ the detailed analysis report help us to confirm the most suitable pump model and engine, it saves a lot time to confirm again and again and reduce the possibility of mistakes.” Then we recommended our 10 inch gravel pump for James, and the engine power is 353 kw ( 480Hp). There are simple parameters of the whole dredger:

  1. Pump size: 10 inch
  2. Diesel engine power for pump: 353kw
  3. Whole dimension ( L*W*H ) : 22.2 m * 4.2 m * 2.2 m
  4. Dredger dimension ( L*W*H ) : 16 m * 4.2 m * 2.2 m
  5. Draught : 1m
  6. Discharge distance: 500m
  7. Suction pipe diameter: inner 10 inch ( 250 mm)
  8. Discharge pipeline : Outer diameter: 280 mm

We sent the quotation of the 10 inch cutter suction dredger with the detailed

specification list to the customer. They received that they need some tine to discuss and then feedback us. On Feb. 14th, we received the feedback. James said, “ Our engineers agree with your plan very much, but there are still a few details that need to be reconfirmed again. After all there is no doubt, we will arrange purchasing personnel to contact you. ” Then according to the requests and questions, our engineers gave a complete reply and our suggestions. Finally, we got this order on Mar. 4th. The first purchase fund is 40% of the total amount, as the deposit. We arranged the production plan and started to prepare the material and machine. The production time is totally 40 days, we loaded the goods on Apr. 20th. We also sent the videos and pictures while testing and loading. After shipping, we helped the customer do the all documents for his customs clearance of this dredger. Now, this 10 inch cutter suction dredger is working well in Singapore.

Cutter suction dredger4
Cutter suction dredger5

FAQ

  1. When we purchase a dredge , will we receive operator training from you?

We provides training on each dredge when it is delivered and commissioned. Additionally, customers will receive classroom training, as well as dredge simulator training.

  1. What depth can your dredges reach?

Our standard cutter suction dredge’s digging depths range from our smallest at 20′ (6 m) up to 58′ (18 m).

  1. Would a dredge with a larger engine consume more fuel?

Not necessarily.

Fuel consumption depends primarily on the parameters of the dredging operation, such as the material density,pumping distance, and terminal elevation.

About OCEAN Pump

OCEAN Pump is the Certification of New Hi-tech Enterprises by the Government. We provide our customers with a complete set of sand, slurry, gravel pumping solutions and related parts. Our main products include centrifugal portable sand pump, marine sand pump, slurry pump, gravel pump, mining submersible pump, vertical sand pump, simple sand pump dredger, submersible dredger, mini dredge for sale, small dredging equipment, small pond dredging equipment, river sand pumping boat, suction dredging equipment, cutter suction dredger, sewage submersible pump, lake dredging equipment, mini dredges for sale, sand dredging machine, river dredging equipment and other parts like discharging sand pipe, floater, rubber hose. They are widely used in mining, metallurgy, coal washing, power plants, sewage water treatment and dredging in such industries as mine, chemical and petroleum. We are looking for pump dealers all over the world.