Replace one machine
Write the duty you are replacing: rated capacity with units, platform or car size, lift height, and whether the existing unit is a shaft freight elevator or a free standing freight elevator. Keep the replacement as one family so each factory answers the same capacity basis instead of mixing a dock lift catalog with a passenger car.
Name the doors, landing count and control path you expect. A single-entry car, a through-car and a side-opening landing are different quoted extras. If pit work, hoistway steel and commissioning stay with the buyer, say so. Browse elevator options when the family name is still too wide. Read how units belong on the brief before factories answer.