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The sand dredger:, 1.PLC & hydraulic system, 2.Low cost,long working life, 3.Dredge sand, 4.Easy to operate and maintain - details see: https://www.machineto.com/low-price-sand-dredger-for-sale-10311644

Operating principle

The dredger can dig hydraulically. Hydraulic digging makes use of the erosive working of a water flow. For instance, a water flow generated by a dredge pump is lead via suction mouth over a sand bed. The flow will erode the sand bed and forms a sand-water mixture before it enters the suction pipe. Hydraulic digging isdone with special water jets and in cohesionless sand.

Disposal of sand

Deposition of sand can be done by opening the bottom doors in a ship. Hydraulic deposition happens when the mixture is flowing over the reclamation area. The sand will settle while the water flows back to sea or river.

Technical specification of sand pump dredger

sand pump dredger
Model	SP45	SP50	SP60	SP100
Volume	45m3	50m3	60m3	100m3
Length	16.2m	17.1m	19.4m	24.4m
Fore cabin	6.1m	5.7m	7m	8.4m
Middle cabin	5.4m	6m	6.4m	8m
Rear cabin	4.6m	5.4m	6m	8m
Depth	1.8-1.9m	2m	2m	2.4m
Width	4.5m	4.9m	4.9m	5.9m
Production capacity	350m3/h	350m3/h	400m3/h	800m3/h
Sand suction pump	8''	8’’	9’’	9’’*2
Jet water pump	6’’	6’’	8’’	8’’*2
Head	3.5m	5m,7m	5m	8m
Weight	12t	17t	18t	30t
Jet water pump power	22-28ps	28ps	45kw	45kw
winch	3t	3t	5t	5t
sand suction pump power	45kw	45kw	88kw	88kw*2
Hang pulp machine	20ps	20ps	38ps	60ps*2
Diesel engine	22ps	20ps	45kw	45kw*2
Draft when empty	0.7-0.8m	0.7-0.8m	0.7-0.8m	1m
Draft when full	1.7-1.8m	1.7-1.8m	1.7-1.8m	2m
Generator	12kw	12kw	12kw	15kw
Electrical machine	4-6kw	4-6kw	4-6kw	5.5-6kw
Running speed	7-8km/h	7-8km/h	7-8km/h	7-8km/h
Number of discharge bin	9	12	12	16
Distribution box	1

Further information, please contact us without hesitate.