SEA-3250 Jack-up

Safe, Solid, and Stable Platform, Year-Round Operations


Civil Construction and Field Lifecycle

The SEA series are multi-purpose jack-up barges, used for offshore support and maintenance, and civil construction works. They are specifically designed and built to operate in moderate and harsh environments.

The SEA-3250 is intended for use in water depth up to 45 m in a North Sea type rough environment, up to 50 m in a moderate environment, and has a leg length under the hull of max. 76.0 m. The four legs and the diagonal preloading allow for easy, fast, and secure jacking and preloading operations. The units are characterized by optimized variable load, deck area, and flexibility for adding all types of mission equipment.

The SEA-3250 is a large-sized, multipurpose jack-up. It can be equipped with a pedestal crane of up to 1,000 t. It offers a large open deck space for temporary auxiliary equipment or accommodation blocks for up to 150 POB.

Construction and Field Lifecycle Highlights

  • Four legs and diagonal pre-loading for easy and fast installation onsite
  • Designed for survival
  • Large free deck space
  • Modern accommodation layout
  • Robust positive engagement (pin-in-hole) hydraulic jacking system
  • Secure and controlled Jacking and Preloading
  • High number of jacking moves
  • Build-in redundancy
  • Optimized variable load
  • The SEA series can be fully customized to owner’s specific requirements

Main characteristics

Hull length

75.9 m

Hull width 40.0 m
Free deck space
Overall leg length 90.3 m
Leg length under hull (max.) 76.0 m
Variable load (max.) 1,800 t
Water depth 45.0 m
Accommodation up to 84 PoB
Main crane 1,000 t at 24 m

SEA-3250LT Offshore Windmill
SEA-3250LT Offshore Wind Turbine
SEA-3250 Skeyes Shipyard
SEA-3250 Skeyes Shipyard
SEA-3250 Offshore Windmill Construction
SEA-3250 Offshore Wind Construction
SEA-3250 Offshore Maintenance
SEA-3250 Offshore 
SEA-3250 Construction vessel
SEA-3250 Construction vessel

Our designs at work

Ideas may start on paper, but our designs are brought to life each day as they serve the marine and offshore industries. View our reference list of field-proven designs and vessels.

GustoMSC Reference List

Related Products

Hydraulic Jacking System

Proven and Sturdy Technology

Learn more

Marine and Construction

A complete life-cycle partner for streamlining your offshore operations.

Learn more


Pioneers of offshore engineering, constantly working toward a more sustainable future

Learn more