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Dredging clamshell grab

  • Details:

    Large dredging grab is an effective tool for dredging silt, hard mud, iron plate sand, blasting reef and even sunken ship. This kind of grab is efficient, durable, easy to maintain, easy to operate, and working well under harsh conditions.

    The pulleys in the grab with many seal, which ensures that the grab will not permeate the water and sediment in seawater. After years of research, our company has developed a series of products from 6t to 200t. This type of grab is suitable for single,two and four rope crane.




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    connetion way:


    drawing no

    capacity(m3)

    meterial

    dead weight
    (t)

    dimension(mm)

    pulley diameter(mm)

    Pulley ratio

    SWL(t)

    A

    B

    C

    D

    E

    GBM6SJ[1]4A

    1 (00)

    silt

    4

    2380

    3458

    3533

    4083

    1320

    560

    5

    6

    GBM12SJ[1.5]6.5A

    1.5(00)

    Hard mud

    6.5

    3020

    4039

    3772

    4532

    1500

    560

    5

    12

    GBM20SJ[5]8A

    5(300)

    silt

    8

    3260

    5042

    4502

    5280

    1820

    650

    4

    20

    GBM30SJ[5]13B

    5(150) 

    Hard mud

    13

    3740

    5450

    4942

    5916

    2012

    800

    5

    30

    GBM55[5.5]35BSJ

    5.5(00)

    reef

    35

    3960

    5812

    5614

    6565

    2150

    880

    6

    55

    GBM45SJ[4]25AV

    4(250)

    reef

    25

    3840

    5657

    5748

    6715

    1950

    880

    6

    45

    GBM46SJ[5]36BV

    5(250)

    reef

    36

    3600

    5947

    6164

    7125

    1940

    880

    6

    45

    GBM45SJ[8]28AV

    8(250)

    Hard mud

    28

    4040

    6632

    6494

    7364

    2102

    880

    6

    45

    GBM55SJ[5]32B

    5(250)

    reef

    32

    3960

    5734

    7194

    8167

    1940

    880

    5

    55

    GBM70SJ[16]48AV

    16(250)

    silt

    48

    5130

    7712

    7415

    8724

    2954

    1045

    6

    70

    GBM80[8]60AV

    8(250)

    reef

    60

    4130

    6695

    7189

    7753

    2530

    1045

    7

    80

    GBM80SJ[11]55BV

    11(250)

    Hard mud

    55

    5120

    7780

    7553

    8924

    2420

    1045

    7

    55

    GBM200SJ[9]110BV

    9(250)

    Shipwreck

    110

    5465

    7202

    8666

    10264

    3000

    1500

    7

    110

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