Abstract: The invention relates to a cast and adjacent casts on a shaft for providing a shaft assembly for a disc screen. A cast which is placeable on a shaft for a disc screen comprises a screening element part with an integral sleeve part. The shaft assembly for a disc screen comprises casts placed on the shaft, each cast comprising a screening element part and an integral sleeve part, the casts being placed against each other so that abutting screening element parts of two adjacent casts constitute a screening element, and abutting sleeve parts of two adjacent casts constitute a sleeve element on the shaft.

Abstract: A screen according to the invention comprises replaceable screen modules A screen module are detachable from the screen as well as replaceable and attachable to the screen. According to an aspect of the invention, the screen comprises a frame and one or more screen modules which are detachable from the frame of the screen, attachable to the frame of the screen, and/or replaceable.

Abstract: The invention relates to a cast and adjacent casts on a shaft for providing a shaft assembly for a disc screen. A cast which is placeable on a shaft for a disc screen comprises a screening element part with an integral sleeve part. The shaft assembly for a disc screen comprises casts placed on the shaft, each cast comprising a screening element part and an integral sleeve part, the casts being placed against each other so that abutting screening element parts of two adjacent casts constitute a screening element, and abutting sleeve parts of two adjacent casts constitute a sleeve element on the shaft.

Abstract: A screen according to the invention comprises replaceable screen modules A screen module are detachable from the screen as well as replaceable and attachable to the screen. According to an aspect of the invention, the screen comprises a frame and one or more screen modules which are detachable from the frame of the screen, attachable to the frame of the screen, and/or replaceable.

Abstract: A waste management device and a modular power system for such are disclosed. The waste management device may be a compactor or a shredder. The waste management device includes a cylindrical component for handling the waste, and a modular power system arranged to transmit power from one/more motors to the cylindrical component. The modular power system includes an internal gear wheel, a frame and one or more motors attached to the frame. Driving gear wheels of the motors are operably connected to the internal gear wheel such that power of the one or more motors is transmitted from the driving gear wheel(s) to the internal gear wheel.

Abstract: A waste management device and a modular power system for such are disclosed. The waste management device may be a compactor or a shredder. The waste management device includes a cylindrical component for handling the waste, and a modular power system arranged to transmit power from one/more motors to the cylindrical component. The modular power system includes an internal gear wheel, a frame and one or more motors attached to the frame. Driving gear wheels of the motors are operably connected to the internal gear wheel such that power of the one or more motors is transmitted from the driving gear wheel(s) to the internal gear wheel.