Using the Operation roller: roller before use should be carefully examined whether the appearance of serious damage bump phenomenon Supply of polymer rollers, rotating roller should rotate flexible polymer roller type, without jamming. Roller mounting distance should be considered the type and characteristics of the conveyor stream volume size set by the scientific computing and polymer roller supplier, avoid too sparse or too dense installation. Roller installation should be adapted to avoid mutual grind touch. Roller soaking sealing performance: in water after roller to 1450r / min speed of operation 24h, the amount of water which does not exceed 150g. Drenching sealing performance: after roller to 1450r / min speed of operation 120h, the amount of water which is not more than 250g. Idler roller converted to strengthen the life of the actual life of greater than or equal 20000h.