| 1 | Match the melter to the material | Confirm the material type, melting temperature, viscosity, drum size, and whether the product is moisture-sensitive, combustible, corrosive, or food-contact related. | Compare the material’s processing range with the unit’s controlled temperature range. Avoid selecting equipment only by drum capacity; heating rate and discharge method are equally important. | Material Safety Data Sheet, technical data sheet, recommended processing temperature, viscosity data, and a written application confirmation from the supplier. | Slow melting, material degradation, blocked discharge lines, inaccurate temperature control, or unsafe operation. |
| 2 | Check capacity and throughput realistically | Verify drum volume, usable fill level, batch cycle time, heating-up time, discharge rate, and expected daily production. Include time for loading, cleaning, and changeover. | A standard 200–220 litre drum is common in international industrial supply chains, but usable capacity is lower than nominal capacity because of headspace and safe operating limits. | Factory test report, cycle-time assumptions, throughput calculation, heating curve, and operating conditions used for the quoted performance. | Capacity targets are missed because the quoted output excludes warm-up, transfer, cleaning, or material changeover time. |
| 3 | Verify electrical compatibility | Check rated voltage, phase, frequency, installed power, plug or terminal arrangement, control-panel requirements, and local electrical installation rules. | Industrial power systems commonly differ by market, including single-phase or three-phase supplies and frequencies of 50 Hz or 60 Hz. The equipment nameplate must match the destination installation. | Electrical schematic, nameplate specification, load calculation, protection requirements, grounding instructions, and destination-country conformity documents where applicable. | Equipment cannot be commissioned, requires costly electrical modification, or presents overheating and protection risks. |
| 4 | Verify global compliance and safety features | Determine which regulations apply in the destination country. Check guarding, emergency stop functions, over-temperature protection, grounding, insulation, warning labels, and operating instructions. | Depending on the destination and equipment configuration, buyers may need evidence related to machinery safety, electrical safety, electromagnetic compatibility, pressure equipment, hazardous-area use, or food-contact requirements. | Risk assessment, declaration of conformity when applicable, test reports, wiring diagrams, safety manual, material certificates, and translated labels or instructions if required. | Customs delays, failed site acceptance, corrective modification costs, insurance concerns, or restricted use after delivery. |
| 5 | Calculate shipping and import requirements | Confirm packed dimensions, gross weight, number of packages, lifting points, export packaging, shipping terms, port or airport destination, and whether the unit contains oils, batteries, or other regulated items. | Compare total landed cost rather than equipment price alone. Landed cost can include product price, inland transport, export handling, freight, insurance, customs duty, import tax, brokerage, unloading, and local delivery. | Commercial invoice, packing list, country of origin information, tariff classification proposed by the seller, transport dimensions, shipping terms, and export packing specification. | Unexpected customs charges, unsuitable packaging, cargo damage, demurrage, delivery restrictions, or inability to unload the equipment at the site. |
| 6 | Compare total ownership cost | Evaluate purchase price, energy consumption, consumables, spare parts, maintenance labor, calibration, downtime, training, cleaning, and expected service life. | Annual energy cost can be estimated as: installed power × average duty factor × operating hours × local electricity rate. Use measured or documented average consumption rather than maximum heater rating alone. | Energy-use estimate, maintenance schedule, spare-parts list, warranty terms, service rates, calibration requirements, and expected replacement intervals for heaters, sensors, seals, or pumps. | A low purchase price becomes expensive because of high energy use, frequent breakdowns, unavailable parts, or long maintenance downtime. |
| 7 | Confirm testing, support, and warranty coverage | Agree on factory acceptance testing, performance criteria, delivery inspection, installation support, operator training, response times, warranty exclusions, and spare-parts availability. | Define acceptance using measurable criteria such as temperature uniformity, heat-up time, discharge performance, emergency-stop function, alarm operation, and electrical safety checks. | Inspection and test plan, factory test record, installation manual, preventive-maintenance checklist, training agenda, warranty statement, service contacts, and recommended spare-parts inventory. | Disputes over performance, unclear warranty responsibility, extended commissioning time, and production losses caused by delayed technical support. |