Electrical STL system is a world first for Dellner Brakes AB

28-03-2017

Dellner Brakes AB, one of the world’s most innovative manufacturers of technologically advanced industrial and marine braking systems, has launched the world’s first fully automated, electrical ‘Stop, Turn, Lock’ (eSTL) braking system at September’s SMM 2016 international marine fair in Hamburg.

The Dellner eSTL system (patent pending) is compact and needs no additional piping, making it quick, easy and cost effective to install – especially where space is at a premium. It’s simple to use, hard wearing and easy to maintain, and it’s perfect for applications where a clean environment is paramount or for use in green shipping zones.

The system is available in a range of standard sizes but it can also be customised for different applications. The unique, modular ‘Stopping, Turning, Locking’ system allows customers to choose one, two or all three functions to create a bespoke solution for their needs.

The Dellner eSTL system is fully automated but it can also be operated from an optional remote hand held control, giving operators the freedom to inspect the complete system during maintenance and testing.

Here’s how it works:

  •  Stop: A disc brake system stops the shaft quickly in any position.
  • Turn: After the brake has stopped the disc, an electric motor rotates the pinion so it aligns automatically and accurately with the gear wheel on the disc. A second mechanism then engages the pinion with the gear wheel and the electric motor allows the disc and connected shaft to be rotated at a variable speed to any exact position.
  • Lock: An electrically operated mechanical locking system locks the brake disc and shaft safely and securely.

The continuous turning (cT) function means the shaft can be moved to any position precisely without the need for indexing, making maintenance a whole lot easier. The variable speed motor can also run continuously for hours, so checking and testing can take place over long periods.

Depending on the size of the system, stopping torque can be up to 900 kNm, turning torque up to 600 kNm and locking torque up to 1,650 kNm. Even Dellner’s small and mid-range eSTL systems can deliver stopping torque up to 300 kNm, turning torque up to 150 kNm and locking torque up to 700 kNm.