SED-350SDW-A — Tunnel Microwave Belt Dryer / Curing Line
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SED-350SDW-A microwave belt drying / curing line. ~400kW total installed power, 500 kg/h capacity. 38.5m long, 2450MHz multi-cavity multi-source architecture with 35 microwave cabinets, top-feed waveguide injection. Tosh
Funktionsweise
Materials are conveyed on a 1200 mm PTFE (Teflon) food-grade mesh belt into the microwave cavity. Top-feed waveguides deliver 2450 MHz (±50 MHz) microwave energy in a cross-polarized, distributed multi-slot pattern across 35 sequential microwave cabinets; water molecules vibrate at high frequency generating internal and surface heat for simultaneous drying or curing. Centrifugal fans extract water vapor through moisture-exhaust ports on the top face of each cavity. Raytek infrared temperature probes feed real-time temperature data to the PLC, which adjusts microwave power in a closed loop. At both entry and exit ends, comb-type microwave suppressors (3 mm high-purity aluminium + absorbent material) prevent microwave leakage to <5 mW/cm² at 5 cm distance.
