The main purpose of space beyond grate is to remove pulp from the mill which is done by means of a box structure consisting of rubber-reinforced elevators filled with pulp. There are two options for arranging the space beyond grate: either with radial elevators or with turbo elevators. The capacity of turbo elevators is from 10 to 15% higher than that of radial elevators.

Field of use

Grate-discharge ball mills, wet autogenous grinding mills, wet semi-autogenous grinding mills and semi-autogenous grinding mills.


  • convenience and safety of installation, capability of performing installation works without removing the end caps;
  • longer fault-free operation of the assembly as compared to metal equivalent;
  • minimum pulp circulation;
  • can be manufactured under the customer’s drawings;
  • long service life.

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