Radiator for drying machine

Buyers must prioritize heat exchange efficiency and material compatibility. Key specs include the tube material (typically seamless carbon steel, stainless steel, or copper) and fin type (extruded, crimped, or L-foot fins). For high-temperature drying, stainless steel 304/316L is preferred for its corrosion resistance. Ensure the working pressure rating exceeds your system's peak by at least 20% to prevent leakage, and verify the heat transfer area (m²) aligns with your machine's BTU/kcal requirements.

Look for suppliers on Made-in-China.com who hold ISO 9001:2015 certification for quality management. For pressurized units, compliance with the ASME Boiler and Pressure Vessel Code or the EU Pressure Equipment Directive (PED) 2014/68/EU is critical. Request hydrostatic test reports and material mill certificates to ensure the unit can safely handle steam or thermal oil mediums without structural failure.

The fin pitch (spacing) is crucial; in dusty drying environments (like textiles or timber), a wider fin pitch prevents clogging and facilitates easier cleaning. Choose radiators with removable headers if the internal tubes require periodic mechanical cleaning. Anti-corrosion coatings or galvanization can extend the service life by 3-5 years in humid or chemical-heavy environments.

The main risks include logistical damage and specification mismatch. Due to the weight and fragile fins, ensure the supplier uses fumigated plywood crates with internal shock-absorption. To avoid mismatch, provide a detailed CAD drawing or a technical data sheet for sign-off before production, as custom-built radiators are generally non-refundable once manufactured.

Utilize the Secured Trading Service on Made-in-China.com to protect your payment until shipping documents are verified. For bulk orders, negotiate a 30% deposit / 70% balance against BL copy structure. Request a pre-shipment video inspection showing a pressure hold test (usually 1.5x working pressure) to ensure the unit is leak-free before it leaves the factory.

For single replacement units, LCL (Less than Container Load) sea freight is cost-effective, but ensure the radiator is vacuum-packed to prevent sea-salt corrosion. For large-scale projects, FCL (Full Container Load) is safer. Always clarify Incoterms; CIF (Cost, Insurance, and Freight) is convenient for new buyers, but FOB (Free On Board) allows you better control over the shipping timeline and local port fees.