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 Dredger gearbox

Integrated with the global advanced designing technology into our own experience, NGC R & D team has developed out the transmission solutions of dredgers, which can meet the developing requirements of large size and diversification. We are able to satisfy the requirement of equipment interface and whole-set performance according to performance and matching between the equipments.

Till today, we have developed out a series of transmission systems with NGC IP rights, such as submerged cutter gearbox, cabin dredge pump gearbox, submerged dredge pump gearbox, high pressure water pump gearbox, hydraulic pump gearbox, bucket wheel gearbox, pivot shaft gearbox, etc. and have been widely used in various types of dredgers.

Submerged cutter
Dredge pump
Submerged dredge pump
High pressure water pump
Pivot shaft / Bucket wheel gearbox
Product application

Submerged cutter drive system

Apply for the submerged cutter driving section of large cutter dredger. Features of work condition: soil sand; have high requirement of sand prevention and sealing; low RPM, super large torque, large ahead and astern pull, deep water operation (max. operating depth of water 35m).

Designing solution of submerged cutter driving system of 3500m3 cutter dredger



鈻  Input power锛
鈻  Input speed 1000rpm锛
鈻  Output speed 30rpm锛
鈻  Applies for 6000m3 cutter dredger锛




鈻  Input power锛2x1400kW锛
鈻  Input speed 1000rpm锛
鈻  Output speed 30rpm锛
鈻  Applies for 4500m3 cutter dredger锛


 



鈻  Input power锛2000kW锛
鈻  Input speed 1000rpm锛
鈻  Output speed 30rpm锛
鈻  Applies for 3500m3 cutter dredger锛

Dredge pump driving system in cabin

 

Apply for large submerged dredge pump driving section of cutter dredger, hopper dredger and bucket wheel dredger.Features of working condition: big change to the sand and water density, different speed conversion, super large torque, big pull, compartment transmission.

Designing solution of cabin pump driving system of 8000m3 hopper dredger





Double ratio gearbox:
鈻  Input power锛3300kW
鈻  Input speed 600rpm锛
鈻  Output speed 340rpm锛圥ump off锛夛紱
鈻  Output speed 220rpm锛圫towing锛夛紱
鈻  Applies for 8000m3 hopper dredger锛

 

 

 

 

 

 

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Dredge pump 锛 gearbox integrated-in-one:
鈻  Input power锛3700kW锛
鈻  Input speed1000rpm锛
鈻  Output speed282rpm锛
鈻  Applies for 4500m3 cutter dredge锛

Submerged dredge pump driving system

 

Apply for the submerged dredge pump driving unit of large cutter dredger and bucket wheel dredger.Features of work condition: big variation of sand and water density, deep water operation (max. operating depth: around 30m), high requirements for sand prevention and seal, super large torque and large pull.

Designing solution of submerged pump driving system of 3500m3 cutter dredger




Submerged dredge pump gearbox(long shaft line):
鈻  Input power锛2200kW锛
鈻  Input speed1000rpm锛
鈻  Output speed269rpm锛
鈻  Applies for 3500m3 cutter dredger锛

 

 

 


 





Submerged dredge pump gearbox:
鈻  (Single input 8 outputs)锛
鈻  Input power锛900kW锛
鈻  Input speed310rpm锛
鈻  Output speed335rpm锛

 

 


 

 



 


Dredge pump & gearbox integrated-in-one
(Horizontal section)
鈻  Input power锛2x1400kW锛
鈻  Input speed锛1000rpm锛
鈻  Output speed锛248rpm锛
鈻  Applies for 4500m3 cutter dredger锛

 

 

 

 

 

 


 

Dredge pump & gearbox integrated-in-one
(Vertical section)
鈻  Input power锛2x1400kW锛
鈻  Input speed锛1000rpm锛
鈻  Output speed锛248rpm锛
鈻  Applies for 4500m3 cutter dredger锛

 

 

High pressure water pump gearbox

 

Apply for the hydraulic station driving unit of piling barges and large cutter dredgers. Features of work condition: drive multi-pumps, high output speed.






 

High pressure water pump gearbox:
鈻  Input power锛1200kW
鈻  Input speed1500rpm锛
鈻  Output speed458rpm锛
鈻  Applies for 11000m3 hopper dredger锛

 

 

 



 

Hydraulic power pack gearbox

  

Apply for the hydraulic station driving unit of piling barges and large cutter dredgers. Features of work condition: drive multi-pumps, high output speed.

 




Hydraulic power pack gearbox(single input 6 outputs):
鈻  Input power锛1470kW锛
鈻  Input speed600rpm锛
鈻  Output speed1800rpm锛

Pivot shaft gearbox

  Apply for submerged dredge pump driving unit of large cutter dredger and bucket wheel dredger.Features of work condition: big variation of sand and sand density, high requirement of seal, super large torque, the output side can rotate with bridge rack freely.



鈻  Input power锛1752kW
鈻  Input speed锛1600rpm锛
鈻  Output speed锛242rpm锛

 

 

 

 

Bucket wheel gearbox

    Apply for submerged bucket wheel driving section of large bucket wheel dredgers.Features of work condition: deep water operation (max. operating depth: around 35m), high requirement of sand prevention and seal, low rpm, super large torque, big shock, abut against the soil sand.

 



鈻  Input power锛750kW锛
鈻  Input speed900rpm锛
鈻  Output speed13.7rpm锛

 

6000m3 cutter dredger.
锛圫ubmerged cutter power: 2x2200 kW锛
 
8000m3 hopper dredger
锛圱win screw, one main engine drives Three; main engine power: 4500kW, main propulsion power: 3600kW, shaft generator power: 2500kW, 3300kW double speed dredge pump system driven by the free end.锛