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Type: endless (continuouse)/ segment (sectional) / tapered diameter / variable pitch / notched / stainless / wearable steel etc. Usage: screw conveyor / harvester / mixer / seperation equipment / sewage treatment equipment / waster water treatment / piling / ground drilling / ice drilling / rig etc. Any screw flight size coming in the range of the following table can be supplied. Cold rolled continuous screw flight Material: carbon steel inner plate thickness(mm) Min ID (mm) Max OD(mm) Max (OD-ID)/2 no more than (mm) Ratio of Pitch and OD Ratio ofOD and ID 3 20 500 165 0.6-1.3 4.0 3.5 20 500 165 0.6-1.3 4.0 4.5 28 500 165 0.75-1.3 4.0 5 28 500 165 0.8-1.3 4.0 6 40 500 165 0.8-1.2 4.0 Cold rolledsegment equal edge thicknessscrew flight Material: Carbon steel, wearable steel and stainless steel (mm) Pitch(mm) Min ID(mm) Max ODRatio of ID and OD(ratio)(mm)Thickness60 100204800.253 16100 150304800.253 18150 200505200.333 20200 250606300.33 25250 300656700.253 25300 350909000.33 30350 400909500.253 30400 450959500.253 30450 50013511500.333 35500 55015012000.33 40550 65015012000.33 40650 75020012000.33 40750 85020012500.283 40850 90025012500.33 40