Fluidomat SM Shaft Mounted Fluid Couplings – SM SMD SMD-X
Compact hollow shaft fluid coupling with optional delayed fill chambers (SMD/SM-DX) for smooth start-up. Includes rubber coupling for shock absorption and torque transmission.

The Fluidomat SM Shaft Mounted Fluid Coupling is a compact, hollow shaft solution designed for direct-on-shaft mounting. The SMD variant features a standard delayed fill chamber, reducing start-up torque and mechanical stress, while the SM-DX model includes an extended delay fill chamber for even greater soft-start control. Both types come fitted with a rubber coupling at the drive end, providing effective vibration damping and improved torque transmission. Ideal for conveyors, crushers, and other demanding industrial applications requiring smooth starts and shock load protection.
Featured Products
- SM (Shaft Mounted)
- SMD (Shaft Mounted with Delay Fill)
- SMDX (Shaft Mounted with Extended Delay Fill)
Features
- Fluidomat offers three circuit types for starting torque down to 120%.
- Normal operating slip: 2% to 5%.
- Suitable for two starts hot, three starts cold.
- Fusible plug blow-off: 130°C standard, 160°C optional.
- SM and HF: Basic couplings, torque 180% to 275%.
- SMD and HFD: Delayfill chamber, torque 140% to 275%.
- SM-DX and HF-DX: Extended delayfill chamber, torque 120% to 270%.
Applications
- Bucket Elevators
- Conveyors
- Crushers
- Fans and Blowers
- Mixers
- Pumps
Sectors
- Building and Construction
- Mining and Heavy Industries
- Steel and Metal
- Wastewater Treatment
Resources
