Large Trimming Grabs for Bauxite

For one of our larger customers Verstegen developed special trimming grabs for handling coarse and difficult to penetrate materials. This solution almost doubled the unloading rate in comparison to the existing situation.

Inside the factory

SPECIAL GRAB FOR EACH SPECIFIC MATERIAL

Verstegen optimises grabs for each specific project. When one of our customers reported difficulties with handling dry and lumpy bauxite, Verstegen came up with a special solution.

In Guinea the customer changed from clamshell grabs to trimming grabs for handling bauxite containing many lumps. The lumps prevented normal clamshell grabs from penetrating the material and resulted in half full grabs. The extreme wide opening of the trimming grabs make it possible to double the unloading rates. Because of the horizontal closing path, trimming grabs can achieve a good filling without having to penetrate the material. Not only the filling of the grabs is much better, also the cleaning up operation is much faster because of the large footprint of the trimming grabs. The use of heavy equipment (e.g. wheel loaders) during cleaning up is reduced with 20% to 30%.

Trimming grabs are also used for handling other coarse materials, like pig iron, chrome ore, manganese ore, stones, etcetera. More information and more pictures about our trimming grabs can be found here. https://www.verstegen.net/grabs/trimming-grabs/

Grab ready for shipment

Grab ready for shipment

In operation in Guinea

In operation in Guinea