Drive types

For a rotor to do its job, it needs a reliable power source. Various drive technologies are available for this purpose. In the WL 4 shredder, for example, a rotor weighing 170 kg has to be set in motion, while a PreCut cutting shaft weighs an impressive 7 tons. These weight differences pose major challenges for both the mechanics and the electronics. WEIMA basically uses three types of drive: electromechanical, hydraulic and high-torque.

Electromechanical drive with WAP gearbox

In most cases, single-shaft shredders are equipped with an electromechanical drive. Power is transmitted by means of a standard motor, a specially developed WEIMA WAP gearbox and a power belt. The speed can be adjusted.

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Power belt drive with WEIMA gearbox

Electromechanical drive with WEIMA WAP gearbox

Power belt drive with WEIMA gearbox

Electromechanical drive with WEIMA WAP gearbox

Electromechanical drive with belt

The electromechanical drive with belt uses a 6-pole asynchronous motor without gearbox and enables infinitely variable speed adjustments between 160 and 340 rpm. Extremely high throughputs are achieved thanks to high speeds, while a slipping clutch protects the drive train from interfering materials. The robust and low-maintenance drive ensures a long service life and a peak-free start.

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Two WEIMA FineCut 2500 shredders at Geocycle with belt drive in a hall with one person in front of them

WEIMA FineCut 2500 shredder at Geocycle with belt drive

Hydraulic direct drive

Hydraulic drives from Hägglunds Bosch Rexroth have no gearbox and are therefore particularly insensitive to many interfering substances. Speed and torque can be adjusted without current peaks occurring. The robust drive ensures high torques with low kW output. The speed can be variably adjusted using a variable speed pump.

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WEIMA waste shredder with powerful hydraulic drive, next to a control panel

WEIMA waste shredder with powerful hydraulic drive

High-torque drive

The high-torque, multi-pole synchronous motor from Baumüller is produced in Germany and is characterized by its insensitivity to foreign bodies. Without a gearbox, the drive withstands shocks and vibrations and therefore has a particularly long service life – even when shredding challenging material flows.

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Portrait of Erik Hagen, Sales Director at WEIMA
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