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The GESILCO® shaftlines are made of advanced composite material and are characterized by their one-piece manufacturing with an integrated fiber flange connection. The GESILCO® shafts can easily be adapted to your requirements. Complete shaftline packages with bearings, bulkhead seals and GESILCO® composite misalignment couplings are possible. Outstanding shock capabilities underline the use of Geislinger shafts for vessels running at high speeds.

The GESILCO® Shaftline is a complete system comprising advanced composite material drive shafts and accessory parts specifically designed for lightweight drivelines. The lower density of GESILCO® composite shafts results in higher critical speeds than conventional steel shaft solutions and allows for twice the spacing between support bearings. Drive systems benefit from low, almost linear reaction forces, as well as from the highest torque transmission with the best dynamic behavior. The material, design, size, function, and fiber orientation of our GESILCO® products can be adapted to the specific requirements of various applications, which allow for tailor-made solutions.

Geislinger GESILCO® shafts are produced in one piece, meaning that the flange is not additionally linked to the shaft, but is already a part of it. This unique design reduces the weight by approximately 50% compared to steel shaft solutions. Due to its modular concept, the GESILCO® Shaft can be adjusted and tailored to applications depending on their specific requirements especially in terms of transmitted power, length, bending stiffness and torsional stiffness. The stiffness levels of the shafts can be adjusted by altering the fiber orientation. The GESILCO® shafts can be produced up to 12 meters in length. The lightweight shaftlines show superior stability throughout its lifetime.

GESILCO® shafts, in combination with GESILCO® couplings, offer outstanding design solutions for lightweight drivelines with excellent deflection compensation capabilities and are suitable for a wide range of applications.

From designing and manufacturing to calculating; the properties of the GESILCO® shaftlines as well as the entire production is carried out in an in-house process at our manufacturing plant in Austria, which ensures the high quality of Geislinger product solutions. GESILCO® shafts can also be supplied with a special fire-resistant outer layer. In combination with a sprinkler system mounted above the GESILCO® Shaftline, SOLAS® fire resistance requirements can be met without the need for an additional housing. The Geislinger GESILCO® product range is based on more than 25 years of experience in developing fiber composite couplings and shafts.


  • More than 25 years of experience
  • The most lightweight solution on the market
  • Low reaction forces
  • Non-conductive
  • Customized solutions based on customer requirements
  • 100% in-house engineering, development and production
  • Maintenance-free
  • Easy installation
  • Electrically insulating
  • Almost non-magnetic

Technical data

  • Torque range: 1 kNm – 700 kNm
  • Ambient temperature: -45°C to 100°C
  • Diameters: 80 mm – 1.200 mm
  • Length: up to 12 m


  • Marine
  • Power Generation
  • Wind Power & Renewables
  • Off-Highway
  • Industrial Applications
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