Explore our foundational range of desiccant dry machines, turnkey enclosures, and solvent reclamation systems built to eliminate latent moisture loads under the strictest industrial standards.
Engineered DHU systems delivering ultra-low humidity down to -70°C dew point using high-grade silica gel/molecular sieve rotors.
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Complete ultra-low humidity envelopes, thermal air handling, airtight wall cladding, and validation for gigafactory cell assembly.
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Solvent recovery system recycling over 99% of N-Methyl-2-pyrrolidone vapors from high-speed battery electrode coating lines.
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Dual deep-cooling condensation and regenerative thermal oxidizers (RTO) capturing hazardous solvent exhausts and oil gas vapors.
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Economical mechanical refrigeration dryers tailored for pre-cooling stages, logistics warehouses, and bulk moisture handling.
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Deep cryogenic recovery modules deployed across petrochemical depots and fuel-loading ports to prevent fugitive atmospheric release.
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Cascaded double-wheel desiccant architecture maintaining steady supply air conditions under -60°C to -70°C for lithium metal chemistry.
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Sanitary desiccant systems fabricated with double-skinned PU insulated panels, anti-microbial seals, and HEPA filter interfaces.
Explore SolutionHangzhou DryAir Treatment Co., Ltd. combines localized supply chain speed with tier-one engineering rigor. Operating from Lin'an, Hangzhou, our manufacturing base bridges high-output precision with cost discipline.
Holding over 30% domestic market share in critical desiccant dehumidification, our systems power gigafactory lines for CATL, ATL, BYD, EVE Energy, Farasis, Envision, and SVOLT. We leverage over a decade of deep empirical validation to eliminate latent moisture leakage points before systems reach the field.
Our lean manufacturing facility in Qingshan Industrial Park outputs over 200 custom units per month. Integrated in-house sheet metal processing, automated rotor assembly lines, and factory testing bays enable simultaneous execution of multi-gigawatt plant expansions without extended lead times.
Manufacturing strictly adheres to both civilian ISO 9001 quality systems and China's GJB national military standard. Every machine undergoes 100% factory acceptance testing (FAT) within our dedicated enthalpy testing lab, verifying dew point stabilization prior to port dispatch.
Measurable thermodynamic precision documented across gigafactories, pharmaceutical labs, and defense projects.
The global dry room and dehumidification landscape is moving rapidly toward tighter chemical tolerances, aggressive decarbonization, and smart digital control.
Conventional ternary lithium and LFP battery production typically requires dry rooms running at -40°C to -50°C dew point. However, next-generation solid-state lithium-metal and sulfide-electrolyte cells react violently with even parts-per-billion atmospheric moisture, generating deadly hydrogen sulfide (H2S) gas. Hangzhou DryAir leads this transition by pioneering multi-stage cascaded sorption modules capable of continuously upholding -70°C dew point (equivalent to less than 0.003 g/kg moisture content).
Desiccant wheel reactivation accounts for up to 60% of total dry room operational expenditure. Industry trends demand a move away from pure electric resistive heaters. DryAir addresses this through integrated waste-heat desorption circuits using coater stack exhaust, high-pressure steam coils, heat pump condensers, and sensible heat wheels that slash baseline operational energy demand by 35% to 45%.
Modern industrial plants cannot rely on static control algorithms. Our latest dry machines integrate predictive PLC telemetry that calculates outdoor enthalpy swings, production shift shifts, and personnel airlock ingress in real time. Dynamic frequency modulation automatically throttles rotor speed, reactivation airflow, and chilling coils, preventing dew point spikes without burning excess kilowatt-hours.
Engineered humidity control designed around process sensitivity rather than arbitrary catalog numbers.
Supply air maintained at -40°C to -70°C dew point across cathode/anode preparation, winding, stacking, electrolyte filling, and cell sealing. Prevents hydrofluoric acid (HF) formation.
Cleanroom dehumidifiers delivering 10%–20% RH. Prevents powder agglomeration during fluid bed drying, tableting, effervescent compounding, and soft-gel encapsulation.
Built to GJB military criteria to inhibit micro-corrosion, preserve avionics, propellants, ammunition, and optical arrays during long-term reserve depot storage.
Heavy-duty emission systems coupling deep cryogenic condensation with regenerative thermal oxidation (RTO) to recover 99%+ of NMP, heptane, and aromatic vapors.
| Industrial Application Area | Process Atmospheric Target | Permissible Moisture Load | Standard System Solution |
|---|---|---|---|
| Lithium-Ion Cell Assembly & Electrolyte Fill | -40°C to -60°C DP | < 0.08 g/kg dry air | Turnkey Dry Room + DHU Series Desiccant System |
| Next-Gen Solid-State & Li-Metal Cells | Down to -70°C DP | < 0.003 g/kg dry air | Dual-Rotor Cascaded DryAir DHU Dehumidifier |
| Cathode Electrode Coater Exhaust | ≥99% NMP Recovery | Exhaust < 20 mg/m³ | ZJRH Low-Temperature Condensation Recovery |
| Hygroscopic Pharma Powders & Packaging | 10% – 25% RH | 1.2 – 3.0 g/kg dry air | GMP Cleanroom Desiccant Dehumidifier |
| Military Avionics & Ordnance Depots | ≤ 35% RH | < 5.0 g/kg dry air | GJB-Compliant Low Dew Point Storage Unit |
| Bulk Logistics Warehouses & Pre-Cooling | 45% – 60% RH | 7.5 – 9.8 g/kg dry air | Refrigerative Commercial Dehumidifier Unit |
Procuring dry machines for international sites requires stringent risk mitigation. Hangzhou DryAir ensures complete peace of mind through a five-stage project governance model.
Moisture load calculations based on room infiltration, door openings, sensible loads, and personnel headcount.
Psychrometric simulations, BIM duct routing, electrical schematics compliant with UL 508A, CE, CSA, and ASME codes.
In-house laser cutting, PU panel foaming, rotor casing assembly, and rigorous full-load factory testing before shipment.
Experienced DryAir field engineers deploy on-site to direct mechanical installation, duct sealing, and dew point commissioning.
Optional 2-year overseas warranty extensions, remote cloud diagnostics, rapid spare parts fulfillment, and local maintenance.
When submitting an RFQ for cleanroom or dry room environments, specifying an arbitrary air change rate without calculating latent personnel loading, envelope leakage factors, and reactivation energy availability results in oversized or unstable machinery. Send your architectural floor plan to our Hangzhou engineering desk ([email protected]) for complete psychrometric mapping and lifecycle power audits.
Straightforward answers regarding equipment ratings, engineering specifications, international certifications, and global after-sales capabilities.
Shortlist our industry-proven dehumidification machinery, recovery units, and turnkey dry room assemblies engineered for precision climate control.
Ultra-low dew point air treatment with low energy regeneration coils, precision variable-speed rotor drives, and HEPA filter modules.
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Comprehensive airtight panel enclosures, airlocks, low-dew-point AHUs, and automated environmental validation sensors under one contract.
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Recaptures N-Methyl-2-pyrrolidone from coater exhaust, dramatically slashing raw solvent overhead and meeting strict stack emissions limits.
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Engineered deep-cooling recovery and regenerative thermal oxidation systems delivering clean exhaust for chemical and battery facilities.
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High-efficiency direct expansion mechanical dryers tailored for bulk warehouse storage, packaging bays, and pretreatment loops.
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Deep cryogenic recovery modules deployed across fuel-loading berths and chemical plants to capture hydrocarbon vapors before release.
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GMP-compliant air systems designed to keep pharmaceutical powder handling, effervescent tablets, and packaging areas dry and sterile.
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Certified anti-corrosion desiccant dry machines built under national defense standards for avionics, armories, and vessel protection.
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