A jaw-crusher discussion usually centers on the first reduction stage and the material entering it. Describe the geology or recovered material, the range of incoming pieces and the way a loader or feeder presents the feed. The proposal should connect that first stage to the next crusher, screen or transfer point, with space for material movement and equipment access included from the beginning.
A feed opening is not the same as a finished-product specification. The intended final fractions should remain visible even when the immediate discussion focuses on primary reduction. A crushing or screening stage belongs in a material flow rather than an isolated equipment list. Feed condition, transfers, recirculation and stockpile arrangements affect the proposal. Start with a representative material description and the intended final products. Equipment selection and any production expectations need review against actual site and material conditions.