| Product fit | MMA (manual metal arc, or stick) models suited to the required electrode types, material thicknesses, and intended work environment. | Model specifications, operating manual, and a clear list of supported processes and applications. | Match the stated output range and recommended electrode sizes to the jobs the machine will perform. |
| Rated output and duty cycle | Clearly stated rated welding current, output voltage, and duty cycle at the relevant current. Duty-cycle figures should identify their test conditions. | Nameplate information and test documentation referencing the applicable rating method, such as IEC 60974-1. | Compare models at the same rated current and test conditions; do not compare duty-cycle percentages in isolation. |
| Input power compatibility | Input voltage, phase, frequency, and allowable voltage variation that match the destination site's electrical supply. | Electrical rating label, wiring diagram, and manual specifying input requirements and protection recommendations. | Confirm the exact configuration for the intended market and installation; do not assume one model supports every supply voltage. |
| Safety and conformity | Safety documentation for the welding power source and conformity information appropriate to the countries where it will be sold or used. | Applicable test reports or declarations, with model references that match the offered equipment. IEC 60974-1 is a relevant arc-welding equipment standard. | Check document scope, issuing body, model number, and destination-market requirements independently. |
| Electromagnetic compatibility | EMC information relevant to the equipment and the intended installation environment. | Applicable EMC test documentation; IEC 60974-10 covers electromagnetic compatibility requirements for arc-welding equipment. | Verify that reports cover the exact model or a documented product family that includes it. |
| Build quality and protection | A documented enclosure rating where relevant, suitable cooling and ventilation, and construction appropriate to the working conditions. | Product drawings, specified ingress-protection rating where claimed, and maintenance instructions. | Check the rating's scope and installation limitations; an enclosure rating does not by itself establish suitability for every outdoor condition. |
| Quality management | Documented production controls, inspection procedures, and traceability for the supplied units. | Current quality-management-system certificate, if claimed, plus examples of final inspection or serial-number traceability records. | Confirm the certificate's validity, scope, and certified site; certification does not replace product testing. |
| Performance validation | Repeatable checks of output, controls, thermal protection, and other features claimed in the product specification. | Sample test records, inspection criteria, and demonstration results for the quoted model. | Arrange a sample evaluation or witnessed test against agreed acceptance criteria before a large order. |
| Warranty and service | Written warranty terms, a defined claim process, access to technical support, and a practical repair or replacement route. | Warranty document stating coverage, duration, exclusions, responsibility for transport, and service contact details. | Compare the actual terms and local service options; warranty length alone does not indicate service quality. |
| Spare parts availability | Identifiable replacement parts and a clear process for ordering consumable or repair components. | Parts list, exploded diagram where available, lead-time estimates, and ordering procedure. | Ask which parts are stocked for the target market and how long support is planned for the model. |
| Export readiness | Experience preparing shipment documents and packaging suitable for the agreed transport route and destination requirements. | Sample commercial and packing documents, packaging details, and a written explanation of the proposed shipping terms. | Confirm responsibilities for freight, insurance, customs documentation, and delivery terms before placing the order. |
| Quotation transparency | A complete quotation that identifies model configuration, included accessories, order quantity, lead time, payment terms, and quoted shipping basis. | Itemized quotation and written confirmation of specifications, packaging, delivery schedule, and any optional items. | Compare like-for-like configurations and clarify exclusions before evaluating total landed cost. |