Hydraulic Diaphragm Wall Grab

This product has been discontinued and removed from our shelves.

For foundation pit support, control of seepage through foundations of dams, cofferdam construction and other purposes, there has been a focus on increased efficiency and cost savings. This leads to a trend for contractors to use hydraulic diaphragm wall grabs instead of using mechanical grabs. The hydraulic grab comes out in the lead in terms of trench accuracy and ease of operation. It is available in models of SG35C, SG46, SG50 and SG60A.

  • SG40
  • SG50

Features of Hydraulic Diaphragm Wall Grab
1. Great verticality of trench: deviation device is equipped to timely finish the diaphragm wall.
2. Advanced electronic measuring system: ensure the accuracy of depth and position up to 0.01.
3. Safe and reliable protection system: lifting and lowering of the grab features safety protection. It offers normal and fast lowering speeds.
4. Oil level monitoring and warning system: monitor the oil level and timely alert the operator if there is an oil leakage.
5. Unique hydraulic hose reel control system: make sure each actuating mechanism can work simultaneously.
6. Multi-purpose foundation construction equipment

Technical Parameters
Hydraulic Diaphragm Wall Grab
Models SG35C SG46 SG50 SG60
Main diameters Trench width (m) 0.3-1.0 0.35-1.2 0.3-1.5 0.3-1.5
Trench depth (m) 50 75 80 100
Max. lifting force (kN ) 350 460 500 660
Hoist single rope pull (kN ) 180 2x230 2x250 2x330
System pressure (MPa) 33 33 30 35
System flow (L/min) 2x260 2x380 2x380 2x380
Grab weight (t) 9-18 15-22 15-26 22-32
Main machine weight (exclude grab) (t) 58 69 87.1 93.5
Height (mm) 15500 15890 17750 18300
Max. lifting height (mm) 14100 14450 14800 15000
Track length (mm) 5360 5680 6020 6020
Distance from grab center to rotary table center (mm) 3450-4810 4500-5360 4100-5500 4100-5620
Distance from rotary table center to machine tail (mm) 4025 4160 4560 4605
Power unit Diesel engine Cummins C8.3-C Cummins QSM11-C Cummins QSM11-C Cummins QSM11-C
Max. engine speed (rpm) 1900 1900 1900 1900
Rated engine output (kW) 196 263 263 300
Undercarriage model R305LC-9/JT70 R455LC-7/JT80 R505LC/JT90 SH36-R455LC-7/JT90
Wheelbase (mm) 3000-4300 3300-4400 3400-4600 3450-4600
Track shoe width (mm) 800 800 800 800
Traction force (kN) 500 500 700 700
Traveling speed (km/h) 1.5 1.5 1.5 1.5
Transportation weight Main machine, lower extension, cylinder, hose reel (kG) 54500 64500 82100 87500
Counter weight (kG) 12000 17600 22400 18000
Upper extension, crown block (kG) 3500 4500 5000 6000
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