Custom Dry Cabinet Company & Factory: Ultra-Low Humidity Control

DryAir rotary desiccant dehumidifiers consistently achieve a supply air dew point of -70°C dew point (equivalent to < 0.002 g/kg moisture content or < 2.5 ppmv) under standard industrial operating parameters. For ultra-demanding glovebox circuits and solid-state battery R&D lines, customized cascaded dual-wheel configurations paired with synthetic molecular sieve rotors can reach sustained dew points down to -75°C.

A custom dry cabinet is a localized enclosure (ranging from 100 liters to 15 m³ modular footprint) designed for component storage (such as SMT reels, bare silicon wafers, optical components, or unsealed pouch cells) using closed-loop desiccant regeneration or nitrogen dosing. A turnkey dry room is a walk-in cleanroom envelope (often 100 m² to over 10,000 m² in EV gigafactories) where operators and automated robotic equipment function continuously inside a climate-controlled room operating at -40°C to -70°C dew point, requiring massive makeup air handling, secondary dehumidification, airlocks, and integrated air-shower vestibules. DryAir manufactures both solutions end-to-end.

Yes. DryAir provides turnkey execution worldwide. We provide complete pre-sales psychrometric calculation, ductwork CFD modeling, physical manufacturing, crating, overseas freight management, mechanical installation supervision, electrical integration, and final dew point validation. We have successfully completed large-scale turnkey dry room projects across Europe, North America, Southeast Asia, and the Middle East for global clients including Tesla, Northvolt, and TTI.

Our ZJRH series NMP (N-Methyl-2-pyrrolidone) recovery plants utilize a proprietary dual-stage deep condensation cooling process coupled with a specialized zeolite rotor adsorption wheel. The solvent-laden exhaust from the cathode coating oven passes through high-efficiency chillers that condense out over 90% of the solvent liquid. The residual low-concentration air stream is routed through the zeolite rotor, capturing trace vapor molecules until exhaust air emissions fall below regional environmental thresholds (often < 5 mg/m³), achieving a certified total solvent recovery rate exceeding 99%.

DryAir systems are certified according to destination market standards: CE marking (Machinery, Low Voltage, and EMC Directives) and ATEX for the European Union; UL 508A and NFPA 79 electrical compliance with CSA standards for the USA and Canada; ASME Section VIII code stamp for pressurized heat exchangers; and EAC (TR CU) compliance for Eurasian trade. The company operates under ISO 9001 quality management and the GJB national military standard system.

We utilize four primary thermodynamic optimization strategies: (1) Exhaust Heat Recovery Wheels: Transferring energy from the hot reactivation exhaust to pre-heat incoming reactivation air; (2) Low-Temperature Water Pre-Cooling: Utilizing plant chilled water (7°C/12°C) or glycol loops (-5°C) to mechanically condense out the majority of moisture prior to the air entering the desiccant rotor; (3) Variable Frequency Fan Modulation: Dynamically modulating airflow based on internal differential pressure and cleanroom airlock cycling; and (4) Waste Steam Integration: Utilizing client facility low-pressure excess steam for rotor regeneration instead of electric resistance heating.