Dreggen Crane recieves order regarding Gantry crane on two Cutter Suction Dredgers for Jan de Nul Group.

The dredgers will be built at Tianjin Xinhe Shipbuilding in China with Hull no.: SB408 and SB409.

The dredgers will be built at Tianjin Xinhe Shipbuilding in China with Hull no.: SB408 and SB409.
The Electric Gantry travelling deck crane DKG400 25T-15,5m / 5T-17,5m is installed to facilitate repairs and maintenance of the dredging installation and for handling of heavy weights up to 25 tons. 
Value of the order is approx USD 1.000.000,-

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The outreach of the crane is 15,5 meter.  The crane will travel along the vessel at a frequency step less controlled travelling speed of 0-10 m/min and slewing speed of 0,25 rpm.

The SWL of the two main winches is 20 t. and the auxiliary winch has SWL of 5 t.
The two main winches are able to lift 25 t in tandem mode.  Max outreach of main winch is 15,5 m and outreach for aux. winch is 17.5 m. and the heights of both lifts are 18,5 m.

Height from deck to underside of gantry is 7 m, gantry rail span is 9 m and travelling distance is 66 m. The total weight of each crane is 55 t.

The safety features are extensive: 
• Thermal overload device for all electric motors
• Overload protection
• Max tensile force protection for power feeding cable
• Siren for “travelling gear in operating”
• Top of crane provided with warning lamps
• Emergency stops
• Limit switches for hoisting, lowering and crane travelling.

The crane will be designed and constructed according to Bureau Veritas rules and regulations.

General information:
Dreggen Crane is located with offices and production facilities by the seaside in Bergen, on the west coast of Norway, with deepwater quay, and a total of 2000 m2 in workshops and offices. 
The organisation has grown to count 30 employees with annual sales of USD 10 millions.

Dreggen delivers the following range of lifting equipment:

Monorail provision cranes, Engine room cranes, Hose Handling cranes, Gantry travelling slewing cranes, Provision handling cranes and Cargo handling cranes.

Associated companies: