VULKAN RATO-S680 Highly Flexible Coupling

VULKAN RATO-S680 highly flexible coupling nominal torque is 630.0kNm.

The VULKAN RATO-S680 is a high flexible torsional rubber coupling, designed for demanding marine and industrial applications. It transmits torque through elastic rubber elements working in shear, effectively isolating torsional vibration and compensating for misalignments between connected machinery.

vulkan-coupling-rato-s680
VULKAN RATO-S680 Coupling
Coupling Type and Size Dimension Group
RATO-S6811 RATO-S6810
RATO-S6812
RATO-S6817
RATO-S6821 RATO-S6820
RATO-S6822
RATO-S6827
VULKAN Coupling RATO-S680 Technical Data
Nominal Torque 630.0 kNm
Maximum Torque /
Permitted Vibratory Torque /
Permitted Rotational Speed /
Element Rows 1 row / 2 rows
Stiffness Grade 1 / 2 / 7
VULKAN RATO-S Series Series 2100 / Series 2101 / Series 2200 / Series 2201

Applications of VULKAN RATO-S680 Highly Flexible Coupling

Marine: Suitable for main engines, shaftlines, and gearboxes.
Power Generation: Designed for use with generator sets and alternators.
Industrial: Applied in compressors, pumps, cranes, and other heavy-duty drives.
The RATO-S680 coupling ensures reliable torque transmission while effectively compensating for misalignments and reducing vibration, making it an ideal solution across diverse industries.

  • VULKAN RATO-S680 Highly Flexible Couplings Technical Data
  • VULKAN RATO-S Couplings Geometric Data
  • VULKAN RATO-S Couplings Alignment Instructions 

Specifications subject to change without prior notice in the interest of continual product improvement. We supply genuine and original VULKAN couplings and spare parts. Our technical team can support you with torsional vibration analysis, coupling selection, and replacement guidance. Contact our sales representative for a quotation or technical support on the VULKAN RATO-S coupling.

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