Product Description

Dredging Grab — Enhanced Product Description

Dredging Grab — Enhanced Product Description

Main Purpose

The Dredging Grab is specially designed for underwater excavation, mud removal, and sediment extraction. It provides strong digging capability and stable clamping force, making it suitable for deep-water dredging and environmental cleaning projects. Whether used for restoring waterway depth or removing contaminated sediment, the dredging grab ensures efficient and continuous operation.**

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Technical parameters

Model	Bucket Capacity(m3)	Main material gripping area	Weight	External dimensions(mm)					Pulley diameter (mm)	Pulley block (Multiplier)	Rated lifting capacity (t)
			(t)	A	B	C	D	E
4A	1 (00)	silt	4	2380	3458	3533	4083	1320	560	5	6
6.5A	1.5(00)	Hard mud, etc	6.5	3020	4039	3772	4532	1500	560	5	12
8A	5(300)	silt	8	3260	5042	4502	5280	1820	650	4	20
13B	5(150)	Hard mud, etc	13	3740	5450	4942	5916	2012	800	5	30
35B	5.5(00)	reef	35	3960	5812	5614	6565	2150	880	6	55
25A	4(250)	reef	25	3840	5657	5748	6715	1950	880	6	45
36B	5(250)	reef	36	3600	5947	6164	7125	1940	880	6	45
28A	8(250)	Hard mud, etc	28	4040	6632	6494	7364	2102	880	6	45
32B	5(250)	reef	32	3960	5734	7194	8167	1940	880	5	55
48A	16(250)	silt	48	5130	7712	7415	8724	2954	1045	6	70
60A	8(250)	reef	60	4130	6695	7189	7753	2530	1045	7	80
55B	11(250)	Hard mud, etc	55	5120	7780	7553	8924	2420	1045	7	55
110B	9(250)	shipwreck	110	5465	7202	8666	10264	3000	1500	7	110

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Typical Applications

Dredging Grabs are widely used in:

• Rivers and channels for deepening and maintaining navigability

• Ports and harbors to clear accumulated sediment

• Lakes and reservoirs for environmental restoration

• Coastal construction projects for foundation preparation

• Underwater engineering requiring reliable river dredging equipment

Its heavy-duty structure and strong penetration make it suitable for handling clay, silt, gravel, sludge, and other underwater materials.**

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Key Features

• High abrasion resistance for underwater durability
  Built with wear-resistant steel and reinforced structural components, the dredging grab performs reliably in continuous underwater excavation.

• Excellent sealing performance
  Enhanced sealing design prevents sediment and water infiltration into key mechanical parts, improving service life and stability in harsh underwater conditions.

• Powerful closed structure for effective dredging
  Tightly sealed jaws improve mud retention and reduce leakage, increasing efficiency during sediment removal.

• Compatible with hydraulic or mechanical configurations
  Available as a hydraulic dredge grab for precise control or a mechanical version for cranes without hydraulic supply.

• Reliable performance in challenging environments
  Suitable for operations involving strong currents, deep water, high-density mud, and long working cycles.

• Low maintenance requirements
  Heavy-duty design and simplified mechanisms reduce downtime, providing long-term productivity for dredging contractors.**