Lift, hold, set down – a hundred times a day. For hoisting gear our programme holds a version of its own.
A hoist drive does not run evenly; it lives on load changes. Every lift is a shock and so is every set-down, and between motor and drum sits a brake that has to hold. The coupling has two jobs at once here: it transmits the torque and it carries the brake drum.
Lifting and setting down put load changes into the drive train which reach the bearings and the gearbox unless they are damped.
On hoisting gear the holding brake sits on the coupling. Coupling and brake drum are therefore one component and have to be selected together.
Many cycles per hour mean a great deal of friction work. The permissible friction work per start and per hour decides the size.
The hoisting version of the range. It builds on the EH versions 9 and 10 with a shrunk-on brake drum; alongside, the sheet gives the short designation K 1 a to K 7 customary in steel mills, and lists both weights – with and without the brake drum.
Source: catalogue sheet “Type Kado K” (hoisting version)
Matching the versions with a pack brake drum. Because the forces of the two shoes largely cancel each other out, the shaft carries hardly any additional load.
Source: double-shoe brake product page
For drives that have to set large masses in motion gently. For each size the sheet gives the permissible friction work per start and per hour – the figure that decides where switching is frequent.
Source: FLEXAN catalogue sheet, table of sizes
That we supply this sector is information from the management, 13.10.2026. Why a range suits a load case is in the catalogue sheets; the place is named for each range.
We will get back to you shortly – with a person who knows the engineering.
