Harahan , LA 70123
40 years of excellence providing customized fluid power designs and integrated control systems. Marine system engineering and consulting is the bedrock of the company; Culminating in HPU’s, steering, bow thruster interfaces, handling equipment, offshore liftboat, jacking systems & field service.
Products & Services
Rescue & Workboat Davits
SIT has unique designs for the launch and recovery of rescue boats and work boats that meet the strict criteria of USCG, ABS, and IMA. By utilizing efficient actuators and over boarding mechanisms, with intuitive controls and back-ups, SIT can design a davit system meeting any Customer requirements, test the system in the yard, and deploy and commission the system at any shipyard or site in the world. If desired, SIT can provide a package inclusive of boat and launching system, pretested and certified to meet regulatory guidance.
Automated Valve Assemblies - Hydraulic, Pneumatic & Electric
Get robust remote control capabilities onboard with Damcos™ Local Power Unit, built for integrated electro-hydraulic systems for uncompromised safety. This workhorse is part of our electro-hydraulic system for remote control of valves. The LPU is developed for mounting on a bulkhead or direct on all Damcos acutators. The rugged and compact design has proven itself reliable on thousands of working vessels and it stands the scrutiny of all marine industry classifications. An electro-hydraulic solution with decentralized control and local power units provide a safety efficient valve remote control system, with no need for hydraulic piping.
Hydraulic Power Units
We provide the entire package to power movement from hydraulic power units, VFDs, prime movers and controls. Our expertise lies in custom hydraulic systems that are designed specifically for your application. Our hydraulic and electric expertise allows us to act as an extension of your engineering department to determine the best way to power your applications.
Custom Shell Closures & Freight Deck Doors
SIT produces custom independently powered shell closures and doors from the size of provisioning doors/manways and platforms to assist the on load and offload of ship’s stores,to intricate systems involving visors, gates, or ramps up to and exceeding 30 meters wide and 20 meters high. Rolling curved doors are produced for Ferry Vessels where the number of cars loaded is a necessary standard for measurement of tonnage or capacity commensurate with prestige or profit. Underwater closures including watertight and non-watertight moon pool doors are a specialty product and can be used to cover openings for thruster canisters, center boards, other through hull systems requiring a fairing once retracted. Extended platforms, deployment mechanisms, and controls are all part of a carefully laid out package. At the fore front of design efforts is always the Customer desires and the regulatory guidance at hand.
Moon Pool & Provision Doors
SIT produces custom independently powered shell closures and doors from the size of provisioning doors/manways and platforms to assist the on load and offload of ship’s stores, to intricate systems involving visors,gates, or ramps up to and exceeding 30 meters wide and 20 meters high. Rolling curved doors are produced for Ferry Vessels where the number of cars loaded is a necessary standard for measurement of tonnage or capacity commensurate with prestige or profit. Underwater closures including watertight and non-watertight moon pool doors are a specialty product and can be used to cover openings for thruster canisters, center boards, other through hull systems requiring a fairing once retracted. Extended platforms,deployment mechanisms, and controls are all part of a carefully laid out package. At the fore front of design efforts is always the Customer desires and the regulatory guidance at hand.
A-Frames, Launch and Recovery Systems
SIT produces A-Frames and Winch Assemblies with hydraulic and electrical controls to handle systems up to 60 MT and rated speeds at our above 40 meters per minute. SIT A-frames can be configured for side rigging and center rigging alignments, or with multiple purchase points to meet narrow widths and high heights, or full beam widths with reaches defined by the Customer and cross member walkways. A-frames can be delivered in a modular portable format for LARS that require lifting equipment and controls to be stationed on single platform for transportation over the road and at sea. As a custom manufacturer of products, SIT will entertain any requirements posed by a Customer that cannot be met by common products. SIT is firmly entrenched with regulatory agencies, such as, DNV and ABS.
LNG Pump Room
SIT is positioning itself as a provider of LNG pump rooms that convert liquefied natural gas (LNG) to a usable gaseous state for the operation of marine vessels on the high seas or transfer to and from facilities, as necessary. Aligned with various cryogenic and gaseous valve and actuator manufacturers, SIT can promise to provide the right solution to LNG conveyance, storage, transfer, and monitoring needs regardless of flow and pressures desired. The processes invoked are sure to promote lower costs applications and efficiency in operation. To benefit all concerned,SIT needs to be involved at the onset of a project and develop the product flow to make any system of systems deliver in a timely and necessary manner.
SIT is deploying articulating gangways that work in 3-dimensions, as in up and down, extend and retract, and roll with the movement of a vessel or barge. Current systems will articulate between 40 deg below horizontal to 10 degrees above horizontal and have between a 6 meter and 14 meter extension. The base platform rests on rollers that allow the vessel to move forward and aft, while float conditions exist for vessel changes in draft or changes in tidal conditions. These systems can be modified for greater freedom of movement, if necessary, and can be developed as remote operated equipment, if desired. Each gangway is self-contained, requiring only a source of electrical power and mounts to a pier or other platform. The platform can be designed to rotate for the sake of operator or boat captain. The majority of interface issues can be incorporated into any Customer requirements.
Jacking Systems - Hydraulic & Electric
SIT produces many designs for three and four station pipe or lattice leg Lift Boats and Jacking Platforms, as well as, self-walking spud barges and split hopper barges. SIT designs incorporate a wide range of rack and pinion, winch and cable, hydraulic cylinder, electrical actuator, or cylinder lock pin (crawler) systems to provide the right solution to meet the Customer’s need. SIT’s markets extend internationally to produce the best possible system at the right price and performance necessary for performance,reliability, availability, and maintainability. The control systems can be as simple as manually operated valves to highly complex state-of-the-art programmable logic controllers (PLCs). Every system is defined by the Customer and SIT has the ability to increase system ratings or components to handle almost any load case or speed of movement required.
Marine Steering Systems
We manufacture marine steering systems to the highest quality standards. Our line of products ranges from simple manual steering for small vessels, to digitally-controlled and integrated systems for large ships. We design and built according to all major marine classification rules and requirements.
Boat Building Supplies
- Steering Systems
- Boat Building Supplies
Deck Machinery / Hardware / Equipment
- Deck Machinery & Hardware
Propulsion / Power
- Control Systems
- Services & Supplies