Consult Jastram GmbH & Co. KG’s Jastram Model H Helm Pumps brochure on NauticExpo. All other pumps have a 1/2″ NC stainless steel wheel bolt. HELM. Nov 23, This Pin was discovered by Meg Jastran. Discover (and save!) your own Pins on Pinterest. SILVER. The Restless Metal. ROY W. JASTRAM. University of Califomia, Berkeley. A RONALD PRESS PUBLICATION. JOHN WILEY & SONS, New York.
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The propeller is mounted with a tight oil press fit which allows rapid mounting and dismounting during shaft seal changes. The RFU features a high quality potentiometer with heavy duty gears, and a built in electronic driver board.
Drive shaft extensions for restricted space in stern installations and detachable systems for workboats to allow servicing without docking are examples of our ability to meet customer requirements.
Anti-suction tunnel AST — a second smaller tunnel installed behind the bow thruster to increase the thrust during cruising. Digital Wheels are unique input devices which provide full follow-up digital electric control. Steel Model Cylinders S series. The RFU outputs both a rudder angle indicator signal and rudder feedback signal, as well as an mwtal second independent second rudder angle indicator signal.
Engineering for Life At Sea Jastram Engineering is built on the understanding of how critical steering is to the operation of any vessel. DW shaft dimensions are: Jastram steering systems can be offered with an Engine driven type of unit which consists of a pump that couples onto the existing main engines and provide flow to a custom wall mount reservoir assembly. The T-ram is a complete self-enclosed steering unit that provides fast rudder movement through midships and maximum torque at the hadvover positions.
The HFU is a state-of-the-art electro-hydraulic steering system, providing full follow-up power steering with unmatched smoothness, quietness and accuracy for small to medium size vessels. This makes Jastram the perfect choice for new installations, retrofit of existing systems or for replacement of worn out parts. Other systems usually move the rudder back to center before acquiring control of the steering.
The rudder then follows up to the position requested by the wheel. With worldwide representation and an in house ability to communicate in twenty-one languages, customers can be assured that any question will be answered quickly. Two types of devices are available for the RFU to generate the feedback signal: Jastram Engineering is well known for its commitment to quality, from initial design continuing through the manufacturing process to system commissioning and after sales service.
The Jastram Lever Controller provides full follow-up way dependent jastan control. Vertical or horizontal mounting or any other installations for electric, hydraulic or diesel engine drives are available. Jastram T-Ram Steering Systems are exceptionally tough and reliable.
Jastram Jog Levers operate either completely on as long as the switch is activated or completely off when it is released. Exceptional Performance We design and manufacture marine steering systems to the highest quality standards. Due to construction of the T-Ram, the clamp fitted tiller provides an integral rudder carrier bearing when the ram is supported metl below.
The RFU is built with cast aluminum and stainless steel and designed for heavy duty use in both commercial and pleasure meyal. T Ram Rapson Slide Actuators.
The MSA comes in 3 series: All moving parts are encased jastgan a greased filled, heavy ductile iron housing and are protected from corrosion and mechanical damage. Up to five indicators can be used with a mixture of forward and reverse scale jastan. The two main features of the Digital Wheel over the standard electric wheel are:. Jastram are specialised in fixed pitch propeller FPP thrusters which require minimal servicing due to their solidity and durability.
metql A holding brake to prevent propeller windmilling and noise during passage is recommended. The Largest of the Indicators is the overhead three faced panoramic indicator.
The Jastram Jog Lever provides non follow-up time dependent electric control. In the event of a power failure the digital helm jastram transfers to manual hydraulic steering. Only two torque struts arm are required to connect the T-ram to the vessels hull structure. Classification certificates for any classification society can be delivered for the whole thruster system.
Jastram S Model Actuators are specifically certified for use in commercial jastarn hydraulic steering systems. Reliable gears, worldwide service, direct contact to jaztran service department and detailed archived data for each delivered system are well accepted by the maritime industry and international shipping companies.
Supertankers and cruise ships have maritime pilots who act as valets for the giant vessels in ports The two main features of the Digital Wheel over the standard electric wheel are: Impressed current cathodic protection ICCP instead of anodes for longer life and reduced resistance in the tunnel.
Powerunits jastraj available to meet specific design challenges or requirements of the vessel owner, naval architects or shipyard. The stainless steel ring jasttran the propeller tip region protects the tunnel against cavitation damage. The given thrust range in kN results from the calculation using the column ‘Max kW’ and is based on optimised tunnel, inlet cone and fore shapes.
Commitment to Quality Jastram Engineering is well known for its commitment to quality, from initial design continuing through the manufacturing process to system commissioning and after sales service.
Galvanic cathodic protection CP is calculated and installed to protect the system for up to 5 years. These customized panels provide visual and audible alarms at both local and remote stations.
The wheel is not supplied with the digital wheel. We design and built according to all major marine classification rules and requirements. Matching of ram capacity to rudder torque provides effective steering at the least cost. Jastram Engineering is built on the understanding of how critical steering is to the operation of any vessel. For those vessels where space is a large concern.
Jastram Digital Wheel DW. This set-up would be used in lieu of a Hydraulic Power unit set-up. When the traditional steering wheel is turned the EW produces an analog rudder command signal. The T-ram assembly mounts directly on the metall and self-aligns, supporting its own weight.