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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Setting the Standard in Marine Steering Excellence. Alignment with shims and preparation of flat mounting beds are not necessary. A holding brake to prevent propeller windmilling and noise during passage is recommended. The RFU is built to resist water and damage caused by vibrations from rough seas and mechanical systems. Under power steering, the steering wheel is turned producing a rudder command signal the rudder then follows up to the position requested by the wheel.
When taking over control of the steering system the Digital wheel takes over at the present position of the rudder. Engineering metao Life At Sea Jastram Engineering is built on the understanding of how critical steering is to the operation of any vessel.
We design and manufacture marine steering systems to the highest quality standards. 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. When the traditional steering wheel is turned the EW produces an analog rudder mefal signal. With electric drive systems ranging from the low-cost 3-step control for onshore manoeuvring to the frequency-controlled drive for offshore dynamic positioning Jastram offer transverse thrusters for a wide variety of vessel types.
All moving parts are encased in a greased filled, heavy ductile iron housing and are protected from corrosion and mechanical damage. The RFU is built with cast aluminum and stainless steel and designed for heavy duty use in both commercial and pleasure crafts. The rudder will then follow-up to the position commanded by the movement of the wheel.
It is designed for heavy duty use and requires very little maintenance as all moving parts are encased in grease-filled, heavy duty housing. The T-ram is a complete self-enclosed steering meetal that provides fast rudder movement through midships and jastraan torque at the hadvover positions. The integral tiller simply clamps on to the rudder post and the whole assembly self aligns to it.
Up to five indicators can be used with a mixture of forward and reverse scale meters. Jastram B Model Actuators are double-acting equal displacement cylinders which are directly connected to a tiller.
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The comfort and safety of the vessel and crew is in part dependent on how well the steering system functions. Jastram Engineering is built on the understanding of how critical steering is to the operation of any vessel.
To improve performance the propeller design is continuously modified according to the latest developments.
The EW provides full follow-up electric wheel control. For those vessels where space is a large concern.
Jastram Engineering is well known mmetal its commitment to quality, from initial design continuing through the manufacturing process to system commissioning and after sales service. The two main features of the Digital Wheel over the standard electric wheel are:. The stainless steel ring in the propeller tip region protects the tunnel against cavitation damage. Their rugged steel construction includes many standard features resulting from mettal long experience in the manufacture, operation and service of steering systems.
Jastram are specialised in fixed pitch propeller FPP thrusters which require minimal servicing due to their solidity and durability. The RFU features a high quality, long life potentiometer with heavy duty gears. Only two torque struts arm are required to connect the T-ram to the vessels hull structure.
The X80 Indicators come in 3 sizes to fit nastran bridge applications. The range is influenced by the jastfan installation design. 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.
The ability to generate jastan increases with increasing rudder angle. Impressed current cathodic protection ICCP instead of anodes for longer life and reduced resistance in the tunnel. T Ram Rapson Slide Actuators. Matching of ram capacity to rudder torque provides effective steering at the least cost. Jastram T-Ram Steering Systems are exceptionally tough and reliable.
This motivating force is why Jastram is compelled to design and manufacture to the highest quality. Two types of devices are available for the RFU to generate the feedback signal: Exceptional Performance We design and manufacture marine steering systems to the highest quality standards.
Classification certificates for any classification society can be delivered for the whole thruster system. The Jastram Lever Controller provides full follow-up way dependent electric control. The rudder then follows up to the position requested by the wheel.
This makes Jastram the perfect choice for new installations, retrofit of existing systems or for replacement of worn out parts. In essence, they start and stop the electric motor which drives the hydraulic pump powering the steering gear. Our line of products ranges from simple manual steering for small vessels, to digitally-controlled and integrated systems for large ships. 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.
Powerunits are available to meet specific design challenges or requirements of the vessel owner, naval architects or shipyard. Reliable gears, worldwide service, direct contact to our service department and detailed archived data for each delivered system are well accepted by the maritime industry and international shipping companies.
Due to construction of the T-Ram, the clamp fitted tiller provides an jastrwn rudder carrier bearing when the ram is supported from below. 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. This set-up would be used in lieu of a Hydraulic Power unit set-up.