Customized winch gearbox for dredging industry
In collaboration with our sister company, Aandrijf Technisch Buro, we have successfully engineered and delivered two bespoke winch gearboxes featuring integrated electromagnetic brakes for a client in the dredging industry. Due to the gearbox’s compact design, there was insufficient space to install a conventional brake at the non-drive end of the electric motor. To overcome this challenge, we developed and constructed an intermediate flange, allowing us to fit the SFB40 electromagnetic spring-loaded brake onto these planetary winch drives.
Our customised solution includes a motor adapter, input shaft, and brake flange, designed to withstand a maximum dynamic output torque of 156,000Nm with a ratio of 165.4. The electromagnetic brake provides a braking torque of 400Nm. The gearboxes were delivered with primer paint, applied in our in-house painting facility.
This project underscores Aandrijf Technisch Buro’s expertise in delivering tailored mechanical solutions to meet complex engineering challenges.

Key Features of the WD-8013 Gearbox and SFB40 Brake
| Features WD-8013 gearbox | Features SFB40 brake |
| 3-stage planetary winch gearbox | Brake torque M: 400Nm |
| Ratio 165,40 | Mass moment of inertia J: 0.0175kgm2 |
| Td(max) 156.000Nm | Nominal voltage Ub: 110Vdc |
| Ts(max) 173.000Nm | Nominal power P: 220W |
| Nominal current I: 2A | |
| Intermediate flange: S450 |