Precision Industrial Big Wheel Dehumidification Portfolio
Explore eight specialized rotary desiccant architectures and industrial environmental control modules engineered to maintain 24/7 moisture stability for extreme process tolerances.
DP -70°C Spec
DHU Big Wheel Desiccant Dehumidifier
Engineered with a high-capacity composite silica-gel/molecular sieve wheel designed for deep dew point suppression in lithium battery and cleanroom facilities.
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Turnkey EPC
Turn-Key Battery Dry Room System
Full envelope design, structural enclosure, HVAC ductwork, and modular air conditioning built to maintain ultra-low humidity down to -40°C to -70°C dew point.
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Recovery ≥99%
ZJRH Series NMP Recovery System
Captures and purifies toxic N-Methyl-2-pyrrolidone vapors from cathode coater drying exhaust, recycling clean solvent and drastically lowering operational expenditure.
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Cooling + RTO
JEN Series VOC Abatement System
Deep condensation cooling paired with regenerative thermal oxidizers (RTO) for extreme environmental compliance in chemical and petrochemical facilities.
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High Efficiency
Industrial Refrigerative Dehumidifier
High-efficiency mechanical refrigeration condensing units operating as high-load primary moisture knockouts ahead of desiccant wheels or for warehouse climate regulation.
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Twin-Rotor AI
Twin-Wheel Low DP Dehumidifier
Cascaded dual rotor design utilizing a secondary molecular sieve wheel for non-condensing continuous operation in next-generation solid-state cell production.
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Waste Heat Reuse
Waste Heat Recovery Dehumidifier
Integrates heat exchanger loops to utilize factory waste steam, thermal oil, or compressor heat to run desorption cycles, slashing total kWh per kg of water removed.
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Pharma & Defense
Hygienic Cleanroom Dehumidification Unit
Fully compliant with cGMP and GJB national defense standards, featuring double-skin insulated thermal break panels, antimicrobial rotors, and washable media.
Request Full CatalogThe Engineering Mechanics of Large-Scale Rotary Adsorption
A rigorous review of why major cleanroom procurement authorities specify high-diameter rotary honeycomb desiccant cores over traditional refrigeration chillers for industrial dehumidification.
Differential Vapor Pressure Adsorption
Unlike sub-cooling condensation systems that freeze at 0°C, a big wheel dehumidifier leverages synthesized metal silicate and molecular sieve matrices. Water molecules within incoming process air are transferred to internal desiccant pores via water vapor partial pressure differentials, holding stable air supply conditions down to -70°C dew point (equivalent to moisture ratios below 0.002 g/kg).
Thermal Regeneration Kinetics
The rotating wheel slowly passes through a counter-flow reactivation airstream heated between 120°C and 140°C. High thermal energy desorbs moisture trapped in matrix pores, venting vapor outdoors.杭州 DryAir designs its regeneration zones with purge and heat-recycling sectors, slashing regenerative energy consumption by up to 32% compared to open-loop wheels.
Continuous Non-Condensing Operation
Equipped with wear-resistant Viton or silicone double perimeter seals, the rotor ensures zero cross-leakage between moist reactivation exhaust and dried supply air. This continuous dynamic balance avoids cyclical temperature fluctuations common in standard dual-bed systems, providing ultra-clean, laminar airflow essential for precision chemical reactions.
Hangzhou DryAir: Proven at Gigafactory Scale
Operating since 2010 in Lin'an, Hangzhou, DryAir ranks as a top three desiccant dehumidifier manufacturer in China, holding over 30% of the domestic tier-one lithium battery market.
Enterprise Sourcing Demands: Why Global Buyers Select China
A procurement audit breakdown evaluating supply chain integration, total cost of ownership (TCO), and engineering agility across multi-gigawatt industrial plant builds.
Total Cost of Ownership (TCO)
Factory-direct fabrication from China's premier industrial hub eliminates distributor markups while reducing equipment CapEx by 35–45%. Modular pre-piped assemblies slash installation hours by up to 50% on-site.
Export Certifications
To eliminate customs and commissioning friction, DryAir systems can be delivered compliant with CE (Machinery & Low Voltage Directives), UL 1995/60335, CSA C22.2, ASME pressure vessel stamps, and EAC mark.
Supply Chain Scalability
With an active monthly output exceeding 200 units, Hangzhou DryAir equips multi-phase gigafactory expansions simultaneously without stretching lead times beyond standard 8–12 week production windows.
Custom Psychrometric Sizing
Standard off-the-shelf catalog units frequently fail under extreme tropical or arctic ambients. Our registered HVAC engineers calculate latent load variations based on exact ASHRAE weather bin databases.
Tailored Humidity & VOC Solutions Across Critical Sectors
From lithium anode coating to military ordnance preservation, our environmental systems prevent product degradation, hazardous side reactions, and structural corrosion.
Lithium-Ion & Solid-State Batteries
Trace moisture in cell assembly reacts instantly with LiPF6 electrolyte to generate toxic, corrosive hydrofluoric acid (HF), leading to capacity fade and short-circuit risk. DryAir maintains -40°C to -70°C dew point across electrode slitting, winding, and electrolyte filling cleanrooms.
Pharmaceutical & Life Sciences
Hygroscopic pharmaceutical powders, gelcaps, effervescent tablets, and diagnostic test strips clump and degrade when ambient relative humidity exceeds 20–30% RH. We build cGMP-compliant stainless steel units that prevent microbial growth and maintain strict room batch integrity.
Military, Aerospace & Avionics
Constructed in strict accordance with the GJB national military standard, DryAir environmental defense dehumidifiers protect aerospace composites, weapons arsenals, radar consoles, and unsealed naval ship storage areas from moisture-driven corrosion and dielectric breakdown.
Chemical & NMP Solvent Recovery
Electrode coating evaporators release massive volumes of volatile organic compounds. Our ZJRH Series condenses and recovers over 99% of raw N-Methyl-2-pyrrolidone solvent, transforming costly environmental compliance liabilities into immediate bottom-line chemical savings.
Precision Electronics & Photolithography
Sub-micron semiconductor manufacturing, glass substrate lamination, and micro-LED packaging demand zero vapor fluctuation. Our custom PID microprocessors maintain room dew point stability within ±0.5°C under shifting cleanroom ventilation cycles.
Food Dehydration & Cold Storage Logistics
Eliminates frost buildup on evaporator coils, loading dock doors, and blast freezers. DryAir systems maintain non-condensing cold warehouse zones, preventing packaging collapse, bacterial proliferation, and expensive thermal defrost shutdowns.
Five-Phase Turnkey Execution Model
How Hangzhou DryAir guarantees contracted dew point validation, on-time project handover, and continuous operational performance under a single EPC agreement.
Consulting
In-depth analysis of room geometry, sensible/latent loads, infiltration rates, personnel counts, and process chemistry targets.
Engineering
Custom psychrometric mapping, wheel diameter sizing, CFD airflow simulations, and integration of waste-heat regeneration loops.
Fabrication
CNC manufacturing, casing assembly, and pre-shipment performance testing inside our in-house environmental test lab.
Commissioning
On-site equipment positioning, ductwork hookups, sensor calibration, and official multi-point dew point sign-off.
Lifecycle Care
Optional 2-year overseas warranty, cloud telemetry diagnostics, on-demand rotor refurbishment, and scheduled spare parts dispatch.
Psychrometric Matrix: Target Dew Points & Architecture
A benchmark reference table for HVAC engineers and procurement teams to align room requirements with optimal dehumidification hardware configurations.
| Target Industry / Application | Required Dew Point (DP) / Relative Humidity | Dominant Risk Without Dehumidification | Recommended System Configuration |
|---|---|---|---|
| Lithium-Ion Cell Assembly & Electrolyte Injection | -40°C to -60°C DP | Formation of toxic hydrofluoric acid (HF); cell swelling & short circuit | Turn-Key Low DP Dry Room |
| Solid-State & Lithium-Metal Battery Prototypes | Down to -70°C DP | Instant violent oxidation of pure lithium metal foils | Twin-Wheel DHU Desiccant System |
| Electrode Cathode Coater Drying Line Exhaust | ≥99% Solvent Recovery | Atmospheric VOC air pollution penalties; extreme NMP solvent loss | ZJRH NMP Solvent Recovery Plant |
| Hygroscopic Pharma Powders, Gelatin & Tableting | 10% – 25% RH / -15°C DP | Powder agglomeration, tablet capping, microbial contamination | Hygienic Cleanroom Big Wheel Dehumidifier |
| Aerospace Composites & Military Equipment Storage | ≤35% – 40% RH | Corrosion of ordnance, avionic failure, delamination of polymers | GJB-Spec Defense Preservation Unit |
| Industrial Bulk Warehouses & Pre-Cooling Stages | 45% – 60% RH | Cardboard packaging collapse, surface mildew, excessive defrost cycles | High-Capacity Refrigerative Condensing Unit |
| Petrochemical Fuel Storage & Chemical Loading Racks | Emission Compliance Limits | Explosive volatile hydrocarbon vapor escape into ambient atmosphere | JEN Series Condensation + RTO Plant |
Engineering Roadmap: Next-Generation Humidity Control
How Hangzhou DryAir is driving efficiency through IoT telemetry, thermodynamic optimization, and proprietary adsorbent chemistry.
Heat Pump Hybrid Regeneration
By pairing transcritical CO2 or R1234ze high-temperature industrial heat pumps with our regeneration cycle, DryAir eliminates reliance on electric heaters or gas burners, cutting specific energy consumption (kWh/kg removed) by up to 40%.
AI Predictive Control Algorithms
Embedded PLC networks continuously evaluate outdoor humidity spikes, door-opening cycles, and factory shift headcounts. Predictive machine learning models adjust wheel rotation speeds and reactivation dampers prior to indoor dew point drift.
Nano-Engineered Adsorbent Media
Next-generation metal-organic framework (MOF) and composite zeolite surface coatings increase water molecule bonding capacity at lower activation temperatures (under 90°C), unlocking the practical use of low-grade factory waste heat.
Shortlist Industrial Big Wheel Dehumidifier Units for Tender
Review engineering configurations ready for rapid dispatch and multi-unit installation across domestic and international cleanroom projects.
Ultra Low DP
DHU Series Large Desiccant Wheel
High air volume process handler built with synthesized desiccant matrices for industrial battery cell production line integration.
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Complete EPC
Gigafactory Cleanroom Enclosure
Hermetically sealed modular wall panels, airlocks, and integrated air systems tested to resist latent leakage under extreme differential pressure.
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Recovery ≥99%
Solvent Recovery Unit ZJRH
Designed specifically for lithium-ion battery manufacturing, reducing factory VOC footprint while providing high purity reclaimed solvent.
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RTO Exhaust
RTO Industrial VOC Abatement
High thermal destruction efficiency for regulated volatile compounds, preventing environmental discharge penalties.
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DX Condensing
Commercial Refrigerative Unit
Ideal for process workshops, logistics packaging, and dry storage areas requiring standard humidity ranges from 40% to 60% RH.
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Cleanroom HVAC
Modular Clean Air Handler
Combines HEPA filtration, chilling coils, and rotary desiccant core inside high-rigidity thermal break framing.
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ISO 9001 · GJB
Custom Engineered Dehumidifier
Direct manufacturer tailoring for uncommon psychrometric profiles, high static pressures, and explosion-proof ATEX ratings.
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Global Support
Complete Engineering Catalog
Comprehensive engineering dimensional drawings, CAD/BIM models, psychrometric performance curves, and reference project audits.
Download Full CatalogFrequently Asked Questions by International Buyers
In-depth technical answers addressing dew point thresholds, international project compliance, service warranties, and factory engineering standards.
What is the absolute lowest dew point achievable with a DryAir desiccant system?
Can Hangzhou DryAir execute complete turnkey dry rooms outside of China?
Which export certifications are available for international regulatory compliance?
What solvent recovery efficiency does the ZJRH NMP system deliver?
How does DryAir maintain after-sales technical support for overseas projects?
Why choose a big wheel desiccant system over mechanical refrigeration?
What is the average lifespan of a Hangzhou DryAir desiccant rotor?
How does DryAir minimize operational energy costs for thermal reactivation?
Request Psychrometric Calculation & Factory Quotation
Share your process envelope dimensions, target supply dew point, ambient design condition, and sensible heat loads. Our engineering team returns an audit-ready load sizing within 24 hours.