6. Large Pitch Conveyor Chains
Figure 6.27 Sewage Treatment Chain
Construction and Features ACS Chain has large-diameter bushings. It does not have rollers. Plates, pins, and bushings are made of 403 stainless steel. The T-head cotter key is made of 304 stainless steel, which ensures high corrosion resistance. SF-4 attachments are used for installing flights, and extended pins or LA-1 attachments for installing buckets in the dredger. Both of these attachments are placed on the outer plates. LA-1 attachments are made of heat-treated car- bon steel. Figure 6.28 compares the strength of cast iron chain and stainless steel chain in a long-term test.
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