Waste to Energy

Waste-to-Energy (WtE) means burning household and industrial waste in a process that generates energy and/or heat. Our fully automated process crane systems are an essential component in the process chain. The waste delivered by the waste collection lorries is transported through the bunker gates and into the waste bunker. The overhead traveling cranes pick up the material at the delivery gates and drop it into the bunker. The waste removal hoppers that feed the incineration lines are automatically loaded by the cranes at continuous intervals. This is followed by the next energy generation steps.
After incineration, the overhead traveling cranes in the slag bunker transport the residue from the waste incineration area to lorries for reprocessing and treatment.

Overhead traveling crane

There is a reason that these cranes are market leaders in the WtE segment.

For over two decades, grab overhead crane systems have been the main production focus of the KW Kranwerke. The cranes have proven themselves under the most extreme operating conditions, 24/7. The double-girder cranes with trolley and the grab directly suspended on the hoisting rope are optimised for the materials handling process. Depending on the field of application (waste / slag), multiple claws such as clamshell grabs can be attached to the cranes. The crane systems from KW Kranwerke are generally equipped with power recovery units in the switch gear.

Our international testimonials are the best evidence of broad customer satisfaction.

Areas of application:WtE (household/industrial waste, slag)

  • Substitute fuels / woodchips
  • Biomass and wastewater sludge
  • Fermentation and composting plants

A few of the crane systems delivered:

  • grab overhead crane with range up to 38 m
  • Bearing load up to 30 t
  • Multiple-claw grab up to 18 m³
  • Hoisting height up to 40 m

Crane with motor grab

The overhead traveling cranes are equipped with a trolley and a single-drum hoist unit. The grab is suspended using suspension chains on 4 parallel single ropes. This stabilises the grab and protects it from rotating. This approach also minimises damage to the cable reeling drum, increases operating safety, and facilitates maintenance due to the lower rope weight.

It is now standard for all motor grabs to come with monitoring tools for control, such as motor temperature.

Cranes with rope grabs

The overhead traveling cranes are equipped with a clutchless trolley and a double-drum hoist unit for the holding and closing rope. The grab is suspended using suspension chains on 2 parallel individual ropes and guided via the two parallel ropes.
The rope grab is equipped with an electronic closing path measurement unit and guarantees high-precision handling. The synchronisation of the hoist and closing drum developed by KW Kranwerke and perfected over the years ensures smooth operation of the crane system.