Gravity roller will convey light, medium, and heavy loads that have firm flat bottoms such as cartons, totes, cases, skids, drums, etc. PGMF’s standard line of gravity roller conveyor includes models with rollers from 20mm-100mm diameter and various frame styles. Some models are suited for temporary set-up, others for permanent installation. These Rollers of the conveyor can be bearing or bush type and will be available in both M.S and S.S 304 material.