Ko te punaha conveyor Poraka e whakahaerehia ana e te mata pach & plc, nga maatai ​​me te pneumatic, i peia e te motuka me nga mekameka. Kei te waatea te punaha whakamaroke aunoa. Ka mahi i waenga i te miihini hangai miihini me te raina tapahi tonu hei whakapiki i te whakamaoratanga tipu, hei whakaiti i te kaha o te mahi mahi me te waa whakamaroke. Ahakoa kua ki katoa te raina, ka mutu te punaha ki te whangai i tenei raina me te whakawhiti aunoa ki te whangai i tetahi atu raina. Ahakoa he kore noa iho te raina, ka mutu te punaha ka tukuna tenei raina ka huri ki te whakaputa i tetahi atu raina.