| Machine Technology | Extrusion Blow Molding Injection Blow Molding Injection Stretch Blow Molding | Match the machine architecture to the container design, resin, neck-finish accuracy, output requirement, and required level of automation. | Process-flow diagram, sample containers, mold drawings, resin-processing history, and a documented application trial. | These are established blow-molding process families with different tooling, preform, parison, and dimensional-control requirements. |
| Material Compatibility | HDPE PP PET PETG PVC | Confirm that the selected process and screw, barrel, heater, mold, and temperature-control configuration are suitable for the intended polymer. | Material-processing window, melt-temperature range, screw design, drying requirements, and references for equivalent resin grades. | Different polymers require different thermal, drying, shear, and parison or preform-handling conditions. |
| Output Capacity | Rated output should be stated as containers per hour, bottles per minute, or kilograms per hour, together with the number of cavities. | Compare guaranteed output using the buyer’s actual bottle weight, mold cavity count, cycle time, resin, and quality limits—not an empty machine rating. | Factory acceptance-test protocol, cycle-time calculation, guaranteed output, scrap allowance, and production-trial results. | Actual output depends on container geometry, cavity count, cooling time, material, automation, and quality requirements. |
| Energy Performance | Review installed electrical load, compressed-air demand, cooling-water demand, heating zones, and energy consumption per finished container or kilogram. | Prioritize servo-hydraulic or all-electric systems where their efficiency benefits are demonstrated for the specific process and duty cycle. | Electrical-load list, compressed-air specification, cooling-water specification, measured kWh data, and test conditions used for the measurement. | Energy use varies substantially with machine size, heating method, hydraulic system, cycle time, and auxiliary equipment. |
| Automation Level | Auto-Degating Leak Testing Vision Inspection Packaging | Evaluate whether automation reduces labor, handling damage, inspection variation, and material waste without making maintenance unnecessarily complex. | Automation layout, interface list, inspection tolerance, reject logic, communication protocol, and integrated-line cycle-time study. | Automation benefits are application-specific and should be validated using production samples rather than brochure claims. |
| Container Quality | Key checks may include wall-thickness distribution, container weight, dimensions, neck finish, top-load strength, drop performance, and leak rate. | Require measurable quality limits that correspond to the buyer’s filling, transport, sealing, and regulatory requirements. | Inspection plan, gauge-repeatability results, dimensional report, leak-test method, capability study, and approved production samples. | Container performance is determined by material distribution, mold design, process stability, cooling, and downstream handling. |
| Mold and Tooling Support | Review maximum mold dimensions, mold thickness, clamping force, cavity count, neck tooling, cooling channels, and changeover method. | Evaluate mold-change time, spare-part availability, tool-maintenance procedures, and compatibility with future container formats. | Machine envelope drawing, mold interface drawing, changeover procedure, tooling quotation, spare-parts list, and maintenance schedule. | Tooling compatibility is a major determinant of usable output, changeover cost, and product-development flexibility. |
| Controls and Data | Review recipe management, alarm history, trend recording, user permissions, remote diagnostics, data export, and network interfaces. | Prefer controls that support traceability, repeatable setup, controlled recipe changes, and integration with the plant’s production-data system. | Control-system specification, sample screens, data-retention policy, user-access matrix, communication protocol, and cybersecurity documentation. | Digital features are valuable only when the data can be accessed, protected, interpreted, and used by the buyer’s operations team. |
| Safety Compliance | Safety design should address guarding, interlocks, emergency stops, access doors, stored energy, electrical hazards, and safety-related controls. | For equipment supplied to the European Economic Area in 2026, confirm the applicable Machinery Directive transition requirements and technical file responsibilities. | Risk assessment, declaration of conformity, safety-circuit documentation, electrical drawings, guarding validation, and user manual. | ISO 12100:2010 provides general machinery risk-assessment principles; IEC 60204-1 covers electrical equipment of machines; ISO 13849-1:2023 addresses safety-related control systems. |
| Quality Management | Assess the manufacturer’s documented design control, incoming inspection, assembly inspection, calibration, nonconformance handling, and corrective-action process. | Certification is useful only when its scope covers the relevant manufacturing and service activities and can be independently verified. | Current ISO 9001 certificate, certification scope, certificate validity, audit body, quality plan, inspection records, and corrective-action examples. | ISO 9001:2015 specifies requirements for a quality management system; certification status and scope must be checked directly. |
| Factory Acceptance Test | Define test conditions before purchase: resin grade, bottle weight, mold, cavity count, cycle time, output, scrap rate, utilities, and quality limits. | Use a signed FAT protocol with objective pass/fail criteria and retain production samples from the agreed test. | FAT procedure, test report, output records, quality data, alarm list, punch list, and corrective-action closure records. | A standardized FAT reduces disagreement over performance claims and creates a clear basis for final acceptance. |
| Installation and Commissioning | Confirm floor loading, machine footprint, utility connections, ventilation, cooling, compressed air, electrical supply, and material-drying requirements. | Evaluate whether installation responsibility, start-up support, operator training, and production ramp-up targets are contractually defined. | Installation manual, utility diagram, foundation requirements, commissioning schedule, training plan, and site-acceptance protocol. | Installation conditions can materially affect start-up time, machine performance, safety, and warranty coverage. |
| Service and Spare Parts | Review response time, remote-support capability, local technicians, critical-spares availability, preventive-maintenance intervals, and support hours. | Compare total downtime risk rather than only the initial machine price. | Service-level agreement, escalation process, recommended spare-parts package, parts lead times, technician coverage, and maintenance-cost estimate. | Availability of technical support and wear parts directly influences production continuity over the machine’s operating life. |
| Total Cost of Ownership | Include machine price, molds, auxiliaries, installation, labor, energy, compressed air, cooling, maintenance, spare parts, scrap, and financing. | Compare the expected cost per saleable container over the planned production volume and service life. | Five-year cost model, utility assumptions, maintenance schedule, spare-parts prices, warranty terms, and guaranteed performance conditions. | The lowest purchase price does not necessarily produce the lowest cost per saleable unit. |
| Sustainability Readiness | Assess recycled-content capability, lightweighting potential, material-loss control, regrind handling, energy monitoring, and compatibility with recyclable package designs. | Require evidence that recycled or downgauged materials can run at the required speed and quality level on the proposed configuration. | Trial results with specified recycled content, scrap-rate data, energy measurements, material-balance report, and product-quality results. | Recycled content and lightweighting can change melt stability, viscosity, color, odor, moisture sensitivity, and process-window width. |
| Commercial Risk | Review delivery schedule, payment milestones, warranty duration, performance guarantees, exclusions, intellectual-property terms, and spare-parts pricing. | Rank suppliers using verified evidence and contractual commitments rather than marketing claims alone. | Detailed quotation, technical annex, warranty document, delivery schedule, liquidated-damages terms, and signed performance guarantees. | Commercial terms determine how technical and schedule risks are allocated between buyer and supplier. |