| Rated output | Theoretical capacity in m³/h and expected practical output for the proposed mix and operating conditions. | Request the capacity calculation, cycle-time assumptions, and references for comparable installations. | Theoretical output may exceed achievable site production. |
| Plant configuration | Stationary, mobile, or compact layout; mixer type; aggregate storage; and number of batching lines. | Compare the general arrangement drawing with site access, foundation, and production requirements. | The right configuration depends on mobility, available space, and intended use. |
| Batching accuracy | Specified weighing tolerances for aggregates, cementitious materials, water, and admixtures. | Ask for component-specific tolerances, calibration procedures, and applicable test documentation. | Consistent measurement supports repeatable mix production and quality control. |
| Mixing system | Mixer design, nominal batch volume, mixing cycle, and compatibility with required concrete mixes. | Request mixer specifications and, where possible, a production demonstration using a representative mix. | Mixer selection affects batch size, mixing performance, and maintenance needs. |
| Controls and software | Automation level, recipe management, batch records, reporting, and integration options. | Review a software demonstration and confirm data export, user access, backup, and support arrangements. | Controls influence operating efficiency, traceability, and ease of production management. |
| Dust and environmental controls | Dust collection, enclosed transfer points, noise provisions, and water or washout management options. | Request equipment details and identify which measures are included, optional, or site-supplied. | Environmental requirements vary by location and project permit. |
| Installation and commissioning | Scope of supply, installation responsibility, commissioning support, and operator training. | Request a written scope matrix, project schedule, and list of site-preparation requirements. | Clear responsibilities help prevent delays and unexpected project costs. |
| Service and spare parts | Technical support availability, service response arrangements, and spare-parts supply process. | Confirm support hours, contact channels, recommended spare-parts list, and warranty terms. | Support arrangements can affect downtime and long-term operating costs. |
| Safety and compliance | Safety features, electrical documentation, guarding, and conformity with applicable local requirements. | Specify the destination country and request relevant declarations, manuals, and safety documentation. | Applicable standards and regulatory obligations differ by market and installation. |
| Total cost of ownership | Quoted equipment price plus freight, installation, utilities, consumables, maintenance, and expected operating costs. | Compare quotations on the same scope and request a clear list of exclusions and optional items. | The lowest initial price may not represent the lowest overall project cost. |