Abstract: A conveyer module, small fragments of which are detectable by X-ray and magnetic sensors, is formed from a compounded mixture of a thermoplastic polymer and a ferrous metal powder. The thermoplastic polymer comprises a polyketone constituting less than 85% by weight of the mixture. The ferrous metal powder is a 400 series stainless steel constituting between 16% and 20% by weight of the mixture.

Abstract: A conveyor module, small fragments of which are detectable by X-ray and/or magnetic sensors, is formed from a compounded mixture of a polyketone resin, a ferrous metal powder, and, optionally, a barium sulfate powder. The ferrous metal powder is preferably 400 series stainless steel powder, or alternatively, a 300 series stainless steel powder, iron powder, or other iron alloy powder.

Abstract: A conveyer module, small fragments of which are detectable by X-ray and magnetic sensors, is formed from a compounded mixture of a polyketone, stainless steel powder, and barium sulfate powder. The thermoplastic polymer comprises a polyketone constituting less than 95.5% by weight of the mixture. The stainless steel constitutes at least 0.5% by weight of the mixture, and the barium sulfate constitutes at least 4% or more by weight of the mixture.

Abstract: A conveyor system is provided. Conveyor modules are pivotally secured to one another through engagement of links on a first and second side of each module. Portals extend through the modules. Each portal comprises four portal surfaces oriented in opposing pairs. A radial slot is located on each of at least two portal surfaces. A cup is provided with four walls. Ridges are formed on the outside surfaces of at least two opposing walls of the cup. An orifice is formed on two opposing walls of the cup. A roller is rotatably mounted on an axle that extends between the orifices to position the roller inside the cup. The cup is secured inside the portal by engagement of the ridges with the slots. The cup and roller assembly may be rotated to change its orientation relative to the module.

Abstract: Health considerations mandate continuous and thorough cleaning of modular conveyor belts used in the food processing industry. A modular belt cleaning system is provided having a sleeve bearing slidable over a supply pipe, and having apertures for engaging nozzles in the supply pipe. A sprocket is mountable over the sleeve bearing. Depressible retainers are disclosed to permit installation and removal of a sprocket over the sleeve bearing.