NetGrappler Cargo Retrieval Tool

Key Features and Options

• Cost-efficient cargo retrieval with a winch and a basic ROV
• A gentler grip than a standard gripper with rigid claws
• Strong net material with a protection from ruptures

How NetGrappler Works

• The NetGrappler is secured to the surface vessel’s winch system.
• The winch operator lowers the NetGrappler to the target depth.
• The ROV guides the NetGrappler precisely above the target cargo, providing real-time visual confirmation through HD cameras.
• The operator positions the NetGrappler directly over the cargo item, with the ROV providing lateral positioning assistance.
• Once properly positioned, the motorised drawstring system at the lower perimeter of the NetGrappler is activated, constricting the opening and securing the cargo within the containment area.
• The ROV confirms complete cargo capture through visual inspection of the cinched NetGrappler closure.
• After securing the cargo, the winch system operator initiates controlled retrieval to surface.
• For heavier items approaching capacity limits, integrated connection points allow attachment of supplementary lift bags, enhancing buoyancy and reducing strain on the winch system.
• There is another product for snagged or stuck loads that allows to gently shake and gradually free the load onto the seabed surface where the NetGrappler can take over and complete the recovery. Please contact us for detailed information.

NetGrappler Specifications

Specification	Details
Depth	up to 350 meters (can be upgraded up to 3000 meters)
Suitable cargo type	Most types of cargo, including equipment, containers, and machinery, but not suitable for very fragile items
Net closure mechanism	Claws, motorized drawstring with mechanical lock
Control interface	CAN or 2-button control joystick
Operating temperature	-5°C to +40°C
Max retrieval speed	2 m/s
Power	36V, 800W (220V adapter is supplied)
Visibility aids	High-visibility orange markers and LED indicators

NetGrappler Sizes

Option	Height Deployed	Capture Ring Diameter	Working Load Limit	Weight
NG-1	1.2 m	1 m	200 kg	5 kg
NG-3	3 m	2.5 m	600 kg	50 kg
NG-6	6 m	5 m	1500 kg	150 kg
Custom

Custom sizes are offered according to the customers’ requirements.

Full System Solution

The full system consists of:

• a deck-mounted winch
• a lightweight but high-strength rope
• an observation-class ROV equipped with lights, camera, and a tool for carrying and deploying the net
• the NetGrappler capture device

Optional cargo securing methods:

• magnetic clamps
• hooks for lashing points

NetGrappler can be integrated with your existing equipment or supplied as part of a complete system tailored to your requirements. You can request a quote using the form below.