| 1 | Application Compatibility | 15% | The supplier should demonstrate successful cleaning of the same or a closely comparable substrate, coating, contaminant, and surface geometry. | Before-and-after samples, process videos, cleaning parameters, and a written test report using the buyer's workpiece. | A laser system that works on rust may damage paint, plating, weld zones, stone, or delicate historic surfaces if the process is not correctly matched. |
| 2 | Laser Source and Process Control | 13% | Check laser type, wavelength, pulse or continuous-wave operation, rated power, pulse duration, repetition rate, and adjustable scanning parameters. | Laser specification sheet, operating manual, output-power test record, and a clear explanation of parameter adjustment limits. | Nominal power alone does not determine cleaning quality. Incorrect pulse energy, speed, or overlap can cause discoloration, melting, or insufficient removal. |
| 3 | Cleaning Performance | 12% | Evaluate removal rate, final surface condition, heat-affected area, residual contamination, and repeatability across multiple workpieces. | Independent or controlled test results showing cleaning time, surface appearance, roughness where relevant, and acceptance criteria. | Fast cleaning may be unsuitable if it leaves residues, changes surface roughness, or weakens a coating or substrate. |
| 4 | Safety Compliance | 12% | The machine should include appropriate guarding, interlocks, emergency stops, warning labels, key control, beam-enclosure measures, and documented operating procedures. | Laser safety classification, risk assessment, user manual, electrical safety documentation, and conformity documents applicable to the destination market. | Industrial cleaning lasers can create eye, skin, fire, fume, and reflected-beam hazards. Safety features must be verified rather than assumed. |
| 5 | Fume and Particle Extraction | 10% | The proposed extraction system should be sized for the contaminant type and cleaning rate, with suitable filtration and airflow monitoring. | Airflow data, filter specifications, maintenance schedule, fume test results, and information about hazardous-material handling. | Paint, oil, oxide, and coating removal can release hazardous particles or gases. Laser cleaning does not eliminate the need for industrial hygiene controls. |
| 6 | Automation and Usability | 9% | Compare handheld ergonomics, scan-head control, parameter storage, recipe management, monitoring, and compatibility with robotic or production-line integration. | Operator demonstration, control-interface screenshots, training material, cycle-time data, and integration drawings where automation is required. | A technically capable machine may still produce inconsistent results if operators cannot control or reproduce the approved process. |
| 7 | Build Quality and Environmental Protection | 8% | Inspect enclosure construction, cable protection, cooling design, dust management, service access, and stated operating temperature and humidity limits. | Internal photos or factory inspection, equipment drawings, environmental specifications, and a list of critical components with maintenance intervals. | Poor thermal management, contamination, or inadequate protection can shorten component life and reduce output stability. |
| 8 | Quality Management and Traceability | 8% | Prefer documented incoming inspection, assembly checks, final testing, serial-number traceability, calibration records, and corrective-action procedures. | Quality certificate scope, factory audit results, inspection checklist, test protocol, and sample acceptance report for the proposed configuration. | Traceability makes it easier to identify configuration changes, defective parts, and the cause of performance variation. |
| 9 | After-Sales Service and Spare Parts | 7% | Compare warranty duration, response time, remote support, local service capability, spare-parts availability, and technician training. | Written warranty terms, service-level agreement, spare-parts list, troubleshooting guide, and references from comparable industrial users. | Downtime can exceed the initial price difference. Service terms should cover both the laser unit and auxiliary equipment. |
| 10 | Total Cost of Ownership | 6% | Calculate purchase price, shipping, installation, training, extraction, electricity, consumables, optics, filters, preventive maintenance, and expected downtime. | Itemized quotation, five-year operating-cost estimate, replacement-part pricing, delivery conditions, and payment milestones. | The lowest purchase price may result in higher operating costs, limited support, shorter service life, or expensive replacement components. |