What equipment is NOT typically used at PCC batch plants?

Excavators are not typically part of the equipment used at PCC (Portland Cement Concrete) batch plants because their primary function is related to digging, grading, and moving earth rather than handling concrete mixing and batching processes. PCC batch plants focus on preparing concrete through precise mixing of ingredients such as cement, aggregates, and water, using equipment specifically designed for this purpose.

In contrast, equipment like truck mixers and non-agitator trucks are directly involved in transporting and mixing concrete and are thus essential for the operational workflow at these plants. Silos are also crucial as they store materials like cement before they are mixed, supporting the batching operation. Therefore, the inclusion of excavators, which serve a completely different function, highlights why they do not belong in the context of a PCC batch plant's equipment inventory.