Offshore technology

About Hunger seals Continuously increasing technical demands within the cylinder industry has lead to higher quality standards in the sector of seal application. Continuous and creative research to meet these new demands has resulted in new methods being applied to the sector of seals and bearing elements. The high technical know-how of our specialists and effective co-operation with end users in practice has lead to the development of new wear-resistant materials for use in functional profiling. Nowadays all cylinder manufacturers can be offered a solution for any sealing application using seals...

Offshore technology Hunger DFE is an experienced hydraulic seal system provider and partner of customers in the oil and gas industry for several years. Hunger DFE offers a large range of PTFE-Compounds, elastomers, rubbers and molded thermoplastics – each grade adapted to the demands of the industrial application. Hydraulic equipment and seals in oil and gas industry have to bear hardest climatic and geologic conditions and must operate successfully at any time. To secure these properties and guarantee a safe, efficient and economic production we offer different solutions, each one specially adapted...

Application field – Offshore crane cylinders Offshore crane cylinders provide a safe lifting and loading process on ships or drilling platforms and different facilities of oil and gas production. A precise, rocking free positioning of loadings and a controlled beam movement must be possible even under roughest weather conditions. Tailor-made sealing systems for highest demands – safe lifting and handling of goods The sealing systems have been adapted to the respective demands placed on the cylinder. Our customers – leading oil and gas companies, require highest quality levels of products from...

• consisting of extremely wear resistant and low friction POM-PTFE/Bz-Compound, other high com pressive strength materials available on request (e.g. H-Glide) • compatible with almost every hydraulic fluid extraordinary dry running properties, can also be used with pneumatic applications • preventing metal to metal contact due to maximum distance between rod and housing very simple snap in installation, groove arrangement securing against axial movement GD1000K • double effect piston compact seal for highest stress • high sealing effect for good efficiency, Stick slip free operation due to PTFE...

Application field – drilling ships and platforms Stabilizing systems for drilling ships and platforms are equipped with modern, directly connected compensation cylinders to equalize high dynamic movements and loadings due to lifting, rolling and tilting. These systems guarantee a predefined loaded and positioned drill rig at any kind of sea condition. Friction gradient lip seal TDI Friction gradient TRO-I Accumulator loaded, high dynamic long stroke cylinders need a special taylor made sealing and bearing system to cope with extraordinary system loadings and operational speeds. Only highest quality...

Hunger seals materials Choosing the right sealing compound for every single application is one of the most important factors to ensure the required sealing functions. Therefore we offer a wide range of especially developed and customized high-performance plastics and rubbers. With different additives we can adjust our reinforced material properties as requested. It should be noticed in general with tribological systems that friction and wear of materials are not material properties but system properties which result from the stress conditions and elements employed. The most important parameters...

Hunger seals materials Elastomers Thermoplastic Elastomers Elastomeres are used for static as for sliding and rotating seals. For every field of application we have the right material. The thermoplastic elastomers are materials which possess the characteristic elastic qualities of rubber. Because of the wide-ranging possibilities given in process by injection molding of these materials, various types of thermoplastic elastomers compounds have found application in practise and gained a high reputation for quality. Hunger applies elastomers with high thermal and chemical resistance. A broad spectrum...

POM and POM-PTFE-Bz compound The thermoplastic material such as our POM compound is used as the base material for all bearing elements of the Hunger DFE product range. This type of POM is an acetal resin produced by copolymerization. Combined with PTFE-Compound, injectionmolded parts offer excellent sliding characteristics, particularly in the dry-running range of the bearing element. The material is tough and maintains good stability of shape at different temperatures. Its chemical structure also gives it high resistance to various fluids with low water absorption. extend As a result of all these...

Application field – Working boats Working boats which are used for direct fire fighting from water-side. Therefor high performance water cannons are necessary which can be positioned and activated via telescopic cylinders with integrated feeding system of water and fire extinguishing media. These unities have to operate reliably under difficult conditions like swell and strong wind. DMD-Tandem2000 • combination of special lip seal-element with low friction V-packings • provides low friction, stick slip free movements at high and low operating speed • high sealing effect without axial pretension •...

Application field – pile driving platforms Cylinders that are used for the operation of pile driving platforms to anchor concrete or steel piles in the sea bottom with lengths up to 100mtr for bridges, quay or harbour walls. Hunger DFE provides offshore plastic compound bushings at rod end with automatic locking function as well as a friction and wear optimized sealing and bearing system for best performance and long lasting operational safety. Combination of low friction V-packings backed up by wear resistant rod bearing FI provide smooth running properties even under rough conditions. Application...