For
Defense.

Enabling ship
survivability.

InterDam engineers and manufactures specialized products aimed at maximizing ship survivability whilst minimizing weight. These doors are a crucial element for customers who implement the principles of Resilient Ship Design. The doors are designed to withstand the major effects of weapons damage that a naval ship can encounter, including ASM strikes and mine strikes. InterDam manufactures Level I and Level II blast doors, with our highest-specification doors being tested and certified to withstand blasts of 10 bar, shock loading and damage by fire at a significantly lower weight than competing products. Unique for a door with its capabilities, our Nadam 4 Level II door is manually operated with a single handle. Through our R&D and manufacturing experience, and in collaboration with our knowledge partners, we can also provide customized versions of these high-blast doors, for example to provide access for vehicles, or customized opening systems.

InterDam has also recently developed the Nadam 21 sliding, shock-proof door. This door can be electrically or manually operated and had has been tested to stringent standards for both shock and vibration loading.

Blast doors for onshore facilities

InterDam designs and manufactures blast doors for onshore defense facilities, including munition depots. InterDam can supply very large sliding doors, for example 8m x 4m, with blast ratings above 7bar to protect onshore facilities. Smaller hinged doors with similar blast ratings are also part of our portfolio. As all engineering and manufacture is executed inhouse we can modify our designs to our customers’ specific requirements.

Maintenance and Repair

As well as providing ad hoc repair services and supplying spare parts, InterDam has been contracted by the Dutch Royal Navy for the long-term maintenance of all doors on the HNLMS Rotterdam, HNLMS Johan de Witt and HNLMS Karel Doorman. In this innovative contract, InterDam is responsible for maintaining all doors through proactive maintenance based on real-time data. Through this contract, InterDam is proud to contribute to the safety of the crews and operational effectiveness of the ships.