Replace one machine
Write the duty you are replacing: rated capacity with units, lift height or hook-to-hook travel, load chain size, and whether the old unit hung from a top hook or rode a plain trolley. Keep the replacement as one hand chain hoist family so each factory answers the same capacity basis instead of mixing a lever hoist catalog with a powered chain hoist.
Name the suspension you expect on the replacement. A rigid hook mount, a push trolley and a geared trolley are different quoted extras. If the existing load chain and hooks stay, say so; if the factory must supply the full hanging set, say that too. Browse inquiry options when the family name is still too wide.