Dredging

Excavators are the primary workhorses of dredging operations, responsible for cutting, scooping, and removing underwater material with precision. Their ability to reach below the waterline, work from the shoreline, barge, or platform, and handle different soil types makes them essential across canals, harbors, lakes, and reclamation zones.

Al Marwan’s fleet includes:

• Kobelco SK850 long-boom excavators, delivering exceptional digging force for deep marine cuts and harbor basins.
• Komatsu PC850 and CAT 395 long-boom units, ideal for trimming slopes, widening channels, and excavating rocky seabeds.
• Custom 22–160 ton long-reach excavators with booms up to 32 m, designed in-house to achieve optimal reach in deep or wide water bodies.

Role in dredging: These excavators remove sediment, shape underwater profiles, maintain canal depth, cut new channels, and prepare basins for ports and marinas. Their long reach allows them to work safely from the shoreline or platforms without needing barges in the early stages of dredging.

Amphibious and high-bed excavators are critical for areas where water depth fluctuates or where ground conditions cannot support standard equipment. These machines are built to float or operate safely on soft, saturated, or swamp-like terrain.

Al Marwan’s lineup includes:

• Amphibious Kobelco SK380 units on wide pontoons, engineered for buoyancy and stability in lagoons, mangroves, marshes, and dredged ponds.
• High-bed excavators for rent, elevated to operate along canal banks, tidal flats, and reclaimed areas with partial submersion.

Role in dredging: They handle the earliest and most challenging access zones, clearing shallow silt, removing soft deposits, trimming ecological areas like mangroves, and cutting initial channels where barges or long-boom machines cannot yet reach. Amphibious machines are also crucial for environmental dredging where minimal ground disturbance is required.

Marine infrastructure relies heavily on lifting, from placing precast elements to securing sheet piles and structural beams. Crawler cranes provide the stability, reach, and lifting power necessary to work on uneven coastal ground and temporary marine platforms.

Al Marwan supplies:

• Kobelco crawler cranes from 55 to 600 tons, capable of lifting harbor piles, caissons, seawall blocks, and bridge girders.
• 135-ton class cranes frequently used for harbor excavation and coastal rigging operations.

Role in dredging: These cranes support both the dredging process and the civil works that follow. They lift sheet piles for retaining walls, handle steel frames for quay walls, move rebar cages for marine bridges, and support the installation of marine utilities and desalination intake structures.

Once excavators load sediment, it must be moved quickly to prevent bottlenecks and keep production cycles efficient. Articulated dump trucks (ADTs) are designed to travel over wet, unstable, or partially compacted terrain, common conditions on marine projects.

Our fleet features:

• Volvo A40G ADTs available for rent, known for superior traction and load stability on soft ground.
• Caterpillar ADTs, deployed in large fleets for continuous material cycling.

Role in dredging: ADTs transport dredged material from extraction zones to designated fill areas or stockpiles. They support land reclamation, bund construction, beach nourishment, and island formation by ensuring a constant flow of material from excavation points to deposition sites.

After dredged material is placed, it must be shaped, leveled, compacted, and stabilized to form durable embankments, reclaimed land, and shore defenses. This phase relies heavily on powerful dozers and wheel loaders, which transform raw, wet sediment into engineered surfaces ready for civil works or further marine protection layers.

Al Marwan provides an extensive lineup of dozers available for rent, including:

• Caterpillar D6R, D8T, D9R, and the ultra-heavy Caterpillar D11R for large-scale shoreline grading and pushing wet material.
• Komatsu D375A and D475A dozers are ideal for bund construction, slope trimming, and building breakwater platforms under challenging ground conditions.

Our wheel loader fleet includes high-capacity models from leading brands:

• Komatsu WA470, WA500, and WA600 loaders for high-volume stockpile handling and transferring dredged material.
• Caterpillar 966, 980, and 988K loaders equipped for embankment shaping, feeding crushers, and managing large reclamation zones.
• Volvo L120F and L150E loaders known for stability on soft coastal terrain.

Role in dredging: These machines grade and compact reclaimed land, build and reinforce bunds, maintain shoreline profiles, and prepare surfaces for geotextiles, armor rock, and erosion control works. Their power and stability are essential for converting dredged sediments into strong, long-lasting coastal formations.

Harbors, quay walls, jetties, and marine bridges require deep, stable foundation systems capable of resisting tidal forces and wave action. Piling rigs ensure these structures are securely anchored.

Our equipment includes:

• ABI Mobilram rigs ideal for driving sheet piles, king posts, and tubular piles with precision.
• Hydraulic hammers and vibratory drivers for different soil profiles, from loose coastal sand to dense rock layers.

Role in dredging: These machines stabilize the edges of dredged canals, reinforce harbor basins, secure seawalls, and create foundations for marine bridges and platforms. Piling follows dredging closely, making it a core part of marine development sequences.

Marine projects require continuous support, logistics, and auxiliary tools to maintain productivity and safety. Support equipment ensures the efficiency of the entire operation.

Al Marwan offers:

• SOCMA and Sinoboom telehandlers for moving hoses, pipes, rebar, formwork, and dockside materials.
• Generators, compactors, and light towers to maintain power, visibility, and safe working surfaces during long dredging schedules.

Role in dredging: This equipment supports marine logistics, nighttime operations, shoreline stabilization, and material movement around docks, jetties, and temporary working platforms.