DP -70°C Control
Desiccant Dehumidifier
DHU series rotary desiccant dehumidifiers deliver stable low-dew-point dry air where standard refrigeration stalls, featuring heat-recovery regeneration.
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Featured Industrial Drying & Moisture Decontamination Systems
Engineered for extreme psychrometric duties across battery assembly, hygroscopic chemicals, and clean pharmaceutical facilities.
DP -70°C Control
Turnkey EPC
Turn-key Dry Room System
Integrated enclosure, air distribution ducting, modular dehumidification units, and validation systems delivered under a unified turn-key contract.
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Recovery ≥99%
NMP Recovery System
ZJRH series recovers N-Methyl-2-pyrrolidone solvent from electrode coater flue exhaust for direct closed-loop reuse, cutting operational OPEX.
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Cooling + RTO
VOC Abatement System
Deep-cooling condensation coupled with Regenerative Thermal Oxidation (RTO) to neutralize hazardous petrochemical and solvent waste gas streams.
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High Efficiency
Refrigerative Dehumidifier
Cost-efficient bulk condensation dehumidifiers designed for chemical bulk warehouses, packaging lines, and low dew-point pre-cooling stages.
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-70°C Class
Ultra-Low Dew Point Rotor System
Engineered desiccant wheel matrices impregnated with synthesized silica and zeolite substrates to secure moisture levels below -70°C dew point.
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Clean Class ISO 6
Modular Cell Assembly Dry Enclosure
Turnkey chemical-safe dry enclosure incorporating vapor barriers, sealed interlocks, and laminar low-humidity flow controls.
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EPA & CE Certified
Condensation Vapor Recovery Plant
Cryogenic and mechanical condensation systems trapping chemical gases and hydrocarbons during loading, chemical blending, and storage handling.
Learn MoreTechnology Roadmap & Engineering Depth
Next-Generation Adsorption Dynamics & Thermodynamic Efficiency
Modern chemical drying processes require precise mass transfer models, selective moisture adsorption, and minimal thermal regeneration overhead.
Synthesized Zeolite Rotor Chemistry
Standard silica gels saturate rapidly under low relative humidity. Our desiccant rotors utilize synthetic 3Å and 4Å zeolite crystal matrices, exhibiting superior moisture selectivity at extreme low vapor pressures without co-adsorbing organic solvents.
Thermodynamic Heat Recovery Cascades
Regeneration heat accounts for up to 60% of operational expenses in industrial drying. DryAir integrates dual sensible heat wheels, condenser heat reclaim circuits, and waste steam exchangers to reduce total energy demand by over 35% compared to legacy architectures.
Predictive AI Psychrometric Tuning
Featuring embedded IoT dew point transmitters and PLC automation, DryAir systems dynamically adjust wheel rotational velocity, regeneration airflow, and cooling coil thermal expansion valves according to real-time production enthalpy shifts.
Macro Industry Solutions
Engineered Drying Solutions for Moisture-Critical Synthesis
Where moisture presence directly creates hazardous side reactions, process contamination, or active ingredient degradation.
Lithium-Ion & Solid-State Batteries
Ambient moisture reacts instantaneously with lithium hexafluorophosphate (LiPF6) electrolyte to produce hydrofluoric acid (HF), degrading cell life and causing violent thermal runaway risks. We deliver sustained -50°C to -70°C dew point atmospheres across slitting, winding, and electrolyte filling cleanrooms.
Active Pharmaceutical Ingredients (APIs)
Hygroscopic powders, effervescent compounds, and softgel gelatin encapsulations agglomerate and hydrolyze under unregulated humidity. Our sanitary GMP-compliant dehumidifiers eliminate microbial proliferation while keeping relative humidity strictly within 10%–25% RH tolerance bands.
Petrochemical & VOC Recovery
Electrode coating and fine chemical manufacturing exhaust hazardous volumes of NMP and aromatic hydrocarbons. DryAir closed-loop multi-stage condensation systems extract over 99% of evaporated solvents, re-condensing them into pure liquid distillates before atmospheric exhaust.
Aerospace, Defense & Energetics
Solid rocket propellants, pyrotechnic compositions, and precision avionics require strict, zero-condensation environments to prevent propellant destabilization and galvanic corrosion. Built under rigorous GJB military quality specifications.
China Factory 4.0 & Supply Chain Depth
Scale, Efficiency, and Manufacturing Redundancy
Hangzhou DryAir delivers engineering throughput capable of provisioning multi-gigawatt plants simultaneously without supply chain vulnerabilities.
Full In-House Fabrication
From laser cutting CNC sheet metal enclosures to automated polyurethane foam thermal insulation injection and wiring assembly, 100% of core framework engineering occurs in our Hangzhou industrial manufacturing center.
Enthalpy Verification Testing Labs
Every dehumidifier undergoes factory acceptance testing (FAT) within our high-precision test chambers, measuring air volumes up to 60,000 m³/h, psychrometric curves, dew point hold, and sound levels under live loaded conditions prior to port release.
High-Volume Production Throughput
With continuous throughput capacity exceeding 200 high-capacity industrial units per month, DryAir delivers concurrent phase requirements for mega-scale battery installations and chemical plants worldwide.
-70°C
Min Controllable Dew Point
≥99%
NMP Solvent Recovery
30%+
China Market Leadership Share
200+
Monthly Unit Capacity
74
Senior HVAC Engineers & Techs
Psychrometric Sizing Guide
Dew Point & Moisture Target Matrix by Application
Selecting improper targets leads to either defective product chemical degradation or excessive thermal utility expenditure.
| Chemical / Industrial Application | Target Dew Point / RH | Moisture Degradation Threat | Engineered Recommended System |
|---|---|---|---|
| Lithium-Ion Battery Cell Assembly & Filling | -40°C to -60°C DP | Formation of toxic, highly corrosive hydrofluoric acid (HF) | Turn-Key Dry Room System |
| Solid-State Battery & Next-Gen Lithium Anode | Down to -70°C DP | Instant oxidation and ignition of pure metallic lithium surfaces | Desiccant Dehumidifier (DHU Series) |
| Electrode Cathode Slurry Drying Exhaust | ≥99% Recovery | Severe environmental VOC release and excessive NMP purchase cost | NMP Recovery System (ZJRH Series) |
| Hygroscopic API Powders & Effervescent Tablets | 10% – 30% RH | Agglomeration, nozzle clogs, and accelerated active agent hydrolysis | Sanitary Desiccant Air Handler |
| Military Ordnance, Propellant & Munitions Bunkers | ≤40% RH | Propellant degradation, chemical decomposition, and galvanic rust | GJB Spec Military Dehumidification |
| Chemical Raw Material Warehousing & Storage | 45% – 60% RH | Caking of granular salts, carton moisture saturation, fungal growth | Refrigerative Dehumidifier |
| Petrochemical Vapor Emissions & Solvent Stacks | Clean Emission Caps | Heavy VOC atmospheric pollution violations and EPA fines | VOC Deep-Cooling & RTO Abatement |
Compliance & International Delivery
Global Standards Compliance & Field Support Engineering
Engineered to integrate seamlessly with strict Western safety codes, electrical ratings, and operational service requirements.
Global Certification Architecture
DryAir systems are fully rated for CE (Machinery & Low Voltage Directives), UL 508A electrical panels for North American compliance, CSA approvals, ASME pressure ratings for steam heat exchangers, and EAC certifications across Eurasian jurisdictions.
Tier-1 Multinational Trust
DryAir units have been deployed by world-leading gigafactories including Tesla, Northvolt, and TTI, as well as dominant battery innovators CATL, ATL, BYD, EVE Energy, Farasis, Envision, and SVOLT, proving dependability under extreme duty-cycles.
Turnkey Field Commissioning
Our veteran commissioning engineers deploy on-site to direct structural installation, dry room panel sealing, duct balancing, and live dew point certification. Optional 2-year overseas lifecycle warranty agreements safeguard long-term plant uptime.
Engineering Insights & Practical Guides
Technical Articles From Our HVAC & Solvent Engineers
Actionable thermodynamic calculations and troubleshooting procedures derived from over 15 years of factory installations.
How Does an Oil Gas Condensation Recovery System Work
Oil gas condensation systems help fuel storage and chemical handling facilities capture volatile oil vapors during tank transfer, rail loading, and blending before atmospheric release occurs.
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How to Maintain Stable NMP Recovery Performance During 24/7 Production
NMP is an expensive vehicle in lithium cathode slurry suspension. Learn how continuous condensation cooling stages and sensible heat wheels maintain stable 99%+ recovery without duct fouling.
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What Problems Can Excess Humidity Cause in Drug & Capsule Manufacturing
From active substance tableting to blister packaging, excess atmospheric moisture ruins tablet integrity and promotes biological growth. Review sizing metrics for cleanroom dehumidification.
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Frequently Asked Questions for Global Procurement
Direct technical and procurement responses to streamline your equipment specification and RFQ validation process.
What is the absolute lowest controllable dew point a DryAir system can achieve?
DryAir rotary desiccant dehumidifiers can reliably control process supply air down to a minimum of -70°C dew point (equivalent to < 0.0033 g/kg dry air). This level of deep moisture suppression is indispensable for advanced lithium-metal cell chemistry, high-nickel cathode assembly, and electrolyte injection cleanrooms.
Do you engineer and supply complete turnkey battery dry rooms outside China?
Yes. DryAir undertakes comprehensive EPC turn-key projects globally. Our turn-key delivery scope spans psychrometric load analysis, structural panel and airlock enclosure design, mechanical fabrication, overseas export logistics, on-site mechanical erection, air balancing, PLC integration, and formal dew point performance validation. We have successfully served overseas clients such as Tesla, Northvolt, and TTI.
What technical certifications do DryAir chemical drying systems comply with?
Depending on target location and industrial domain, DryAir equipment is fully engineered to conform with CE, UL 508A, CSA, ASME (pressure vessels/heat exchangers), and EAC regulations. Our internal manufacturing plants operate strictly under the ISO 9001 quality management framework and the GJB national military manufacturing standard.
What verified recovery rate does the DryAir NMP recovery system guarantee?
DryAir ZJRH series NMP solvent recovery systems consistently deliver a verified solvent recovery rate above 99% from electrode coater drying exhaust. The reclaimed liquid NMP is condensed and recovered at high purity, significantly reducing raw solvent procurement costs and lowering VOC emissions well below local environmental thresholds.
What lifecycle technical support and spares availability exist for foreign facilities?
International clients receive comprehensive remote telemetry diagnostics, rapid spare rotor and valve dispatch, and on-site commissioning by factory certified engineers. Furthermore, we offer an optional comprehensive two-year overseas service agreement guaranteeing scheduled preventative maintenance and priority emergency on-site assistance.
Factory Equipment Catalog
Industrial Chemical Drying & Solvent Management Portfolio
Browse our complete lineup of high-specification equipment deployed across chemical synthesis plants and clean manufacturing lines.
Desiccant Rotor
DHU Ultra-Dry Dehumidifier
Dual-rotor desiccant air handler delivering continuous supply air down to -70°C dew point for moisture-sensitive chemical synthesis and battery assembly.
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Turnkey Dry Room
Turn-key Dry Room System
Full turnkey environmental execution including anti-leak thermal sandwich paneling, precision air handling, HEPA filtration, and automated humidity balancing.
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≥99% NMP Yield
ZJRH NMP Recovery Plant
Continuous condensation recovery unit specifically tailored for lithium cell electrode coaters, capturing evaporated NMP with over 99% thermodynamic efficiency.
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RTO + Cooling
VOC Thermal Abatement Unit
Combines deep cryogenic condensation with high-temperature regenerative thermal oxidation to completely decompose solvent fumes and organic waste streams.
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Compressor Direct
Refrigerative Dehumidifier
Heavy-duty commercial refrigerative condensation dehumidifier engineered for bulk material warehouse preservation and pharmaceutical raw powder staging.
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Zeolite Wheel
Zeolite Adsorption Unit
Corrosion-resistant chemical rotor unit engineered for aggressive processing atmospheres, equipped with Teflon-sealed perimeter gaskets and stainless casings.
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Giga Scale
Electrolyte Clean Enclosure
Ultra-dry filling environment maintaining continuous -60°C dew point under high human traffic, designed with dual-stage airlocks and laminar flow vents.
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Deep Condensation
Vapor Recovery Terminal Unit
Skid-mounted closed-loop condensation recovery system handling high vapor volumes across chemical terminal docks, tank farms, and transfer manifolds.
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Request the Complete DryAir Technical Catalog & Psychrometric Data
Get detailed dimension schematics, rotor performance graphs, airflow capacities, and engineering case study references to evaluate Hangzhou DryAir for your upcoming facility expansion.