| Product Compliance and Safety | 15% | A structured compliance process covering electrical safety, mechanical protection, materials, labeling, and the regulations of the destination market. | Product documentation should match the target market. For applicable products, check conformity with standards such as IEC 60335-1 and relevant appliance-specific requirements. | Declaration of conformity, test reports from recognized laboratories, technical file, rating label samples, wiring diagrams, and user manuals. | Which standards apply to this model and destination country? Are the reports for the exact model, motor, and control system being quoted? |
| Airflow and Performance Data | 15% | Performance claims supported by consistent test methods rather than marketing descriptions alone. | The quotation should state airflow, static pressure, power input, rotational speed, sound level, voltage, frequency, and operating conditions. Airflow should be reported in a clearly identified unit such as m³/h or CFM. | Product datasheet, performance curve, laboratory test record, operating-point data, and sample inspection results. | How was airflow measured? Is the value free-air airflow or measured at a stated static pressure? What tolerance applies to production units? |
| Motor and Electrical Efficiency | 12% | Appropriate motor selection, stable electrical performance, overload protection, and transparent energy-consumption data. | The motor specification should identify motor type, rated output, insulation class, protection rating, duty rating, voltage range, and efficiency information where applicable. | Motor datasheet, efficiency test data, protection details, capacitor or controller specifications, and electrical safety test results. | Is the motor suitable for continuous operation? What protection is provided against overheating, overload, voltage variation, and locked-rotor conditions? |
| Manufacturing and Quality Control | 15% | Controlled incoming inspection, documented assembly procedures, traceability, final testing, and corrective-action processes. | Every production batch should have defined inspection records for key components, electrical safety, vibration, noise, rotation direction, and basic operating performance. | Quality manual, process flow chart, inspection plan, sample quality records, calibration certificates, nonconformance procedure, and factory audit report. | Which tests are performed on every unit and which are performed by sampling? How are defective components and repeated quality issues handled? |
| Product Range and Engineering Capability | 10% | Capability to adapt airflow, pressure, mounting, controls, materials, and protection features to different commercial applications. | The manufacturer should provide engineering drawings, selection guidance, load calculations, control compatibility information, and documented design-change procedures. | Technical drawings, selection charts, application examples without confidential customer information, prototype records, and engineering change notices. | Can the supplier provide a solution for the required airflow and pressure point? What changes require a new test or approval? |
| Materials and Environmental Durability | 10% | Materials selected for the installation environment, including humidity, dust, corrosion, temperature, and cleaning conditions. | The specification should identify housing material, coating or surface treatment, impeller material, bearing type, operating-temperature range, and relevant ingress or corrosion protection. | Material declarations, coating specifications, ingress-protection documentation where applicable, corrosion-resistance test results, and environmental operating limits. | Is the proposed construction suitable for kitchens, warehouses, factories, coastal areas, outdoor use, or high-humidity locations? |
| Customization and OEM/ODM Support | 8% | Ability to manage customized labels, packaging, colors, mounting arrangements, controls, documentation, and product revisions without losing quality consistency. | Customization should be documented through approved drawings, samples, revision control, and written acceptance criteria before mass production. | Customization workflow, sample approval form, packaging specification, artwork-control procedure, and change-management records. | What is the minimum order quantity for customization? Who owns the drawings and tooling? How are unauthorized design changes prevented? |
| Delivery Capacity and Supply-Chain Control | 7% | Reliable sourcing of motors, bearings, controls, sheet metal, castings, and other critical components, with realistic production planning. | The supplier should provide a documented lead-time range, production capacity information, critical-component alternatives, and a plan for demand fluctuations. | Production schedule sample, capacity statement, supplier qualification process, approved-vendor list for critical parts, and shipment records with sensitive details removed. | Which components have the longest lead time? What is the contingency plan if a critical motor, controller, or bearing becomes unavailable? |
| After-Sales Service and Spare Parts | 5% | Clear warranty terms, technical support, spare-parts availability, troubleshooting instructions, and a defined response process for field problems. | Warranty conditions should state coverage period, exclusions, claim procedure, required evidence, response time, and spare-parts support period. | Warranty document, spare-parts list, troubleshooting guide, service contact process, and anonymized corrective-action examples. | Which parts are considered wear items? How quickly can replacement motors, controllers, bearings, or impellers be supplied? |
| Commercial Transparency and Total Cost | 3% | Transparent quotations that distinguish product price from tooling, packaging, testing, freight, taxes, installation, and lifecycle costs. | Compare suppliers using the same airflow, pressure, duty cycle, noise, control, compliance, warranty, and delivery requirements—not unit price alone. | Itemized quotation, Incoterms, payment terms, tooling charges, packaging details, warranty costs, and energy-consumption information. | What costs are excluded from the quoted price? How does the proposed fan’s energy use and maintenance requirement affect total cost of ownership? |
