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Deckplate Straightener



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Cost Savings

    9 Month Return on Investment

    Save $2,000 - $15,000 on Energy Costs per Year

    25% Reduction in Paint Repair Costs

    No Fume Ventilation Costs









Better Straightening

    Continuous Full-Time Operation

    Optimized Heating Patterns

    2x Faster Straightening

    Automatic Measurements










Health & Safety Benefits

    No Gas Fumes, No Explosive Gases

    Heat Not Radiated into Workspace

    Worker Removed from Direct Heat

    No Underside Paint Burning







    Choose the Size and Dimension that Best Fits your Application








    Easy Assembly/Disassembly for Small Workspace Access

    Pushcart Design for Quick Section to Section Straightening

    Crane and Forklift Transport Design




This system is currently in production use at Northrop Grumman's Ingalls Shipyard in Pascagoula, MS.  If you are interested in their feedback please Contact Northrop Grumman Ship Systems at (228) 872-7568.  Additionally if you have any interest or questions about NA Tech providing you with a system like this please Contact Us at anytime.

During the ship erection process deck plates are often distorted due to welding, fitting practices, penetrations, inserts, and rolled-in stresses at the mill.  Military Specification 1689 identifies the fairness requirements of the different parts of the ship. 

Deck fairness is primary in these requirements because:  a) unfairness of the deck creates a corrosion problem, b) unfairness of the deck can reduce midship transverse framing stiffness, c) foundation fit up requirements, and d) personnel safety in walking areas.  However, due to the cumulative affect of the different sources of distortion, often the fairness of the deck is out of specifications. 

Currently, a manual straightening process is used to bring the decks back into spec, but this is a costly non-value adding process that consumes resources and can affect construction schedules.  The cost of removing this distortion drives the cost of Navy hulls up 0.1 0.3%.

The Portable Automated Plate Straightener  (PAS-D) is the first example of a portable unit possessing both robotic capability and flexible automation in ship production.  The system can adjust to the changing environment in real time in order to straighten the deck. 

This system was designed and built with collaboration with Northrop Grumman Ship Systems and Bollinger Shipyards.







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