DP -70°C
Desiccant Dehumidifier
High-efficiency rotary desiccant dehumidifier engineered for deep moisture stripping, delivering supply air down to -70°C dew point.
Tier-1 Validated Partner:
Tesla•
Northvolt•
CATL•
BYD•
ATL•
EVE Energy•
Farasis•
Envision AESC•
SVOLT•
TTI
Precision Engineered Systems
Industrial Low Dew Point Dehumidification & Recovery Solutions
Explore our foundational thermal and rotary air treatment equipment engineered to handle mission-critical moisture removal and hazardous solvent recovery worldwide.
DP -70°C
Turnkey EPC
Turn-key Dry Room System
End-to-end industrial dry room solutions comprising fire-rated envelope, precision air distribution, desiccant air handling, and SCADA monitoring.
≥99% Yield
NMP Recovery System
Advanced condensation and zeolite absorption technology tailored for lithium-ion cathode coating lines, reclaiming over 99% of solvent.
RTO + Cooling
VOC Abatement System
Integrated thermal oxidation and cryogenic condensation systems that treat volatile organic compounds in strict compliance with EPA standards.
Pre-Cooling
Refrigerative Dehumidifier
Energy-optimized DX mechanical refrigeration dehumidifier units designed for large industrial warehouses and pre-treatment fresh air stages.
Modular Fast-Track
Modular Battery Dry Room
Pre-engineered modular clean dry room pods for pilot battery manufacturing, solid-state R&D laboratories, and pouch cell production.
Closed Loop
Solvent Condensation Skid
Explosion-proof cryogenic condensation modules for VOC recovery, fuel bulk terminal loading, and organic vapor collection.
Dual-Rotor
Ultra-Low DP Rotor Module
Cascaded dual-rotor desiccant air handling unit optimizing sensible heat exchange while achieving relentless -70°C dew point output.
-70°C
Minimum Supply Dew Point
≥99%
NMP Solvent Recovery
30%+
National Market Share
200+
Monthly Unit Capacity
74+
R&D Engineers & Techs
Strategic Industry White Paper
The Global Imperative for Turnkey Dry Room Engineering
As the international manufacturing sector transitions toward next-generation battery chemistries and ultra-sensitive pharmaceuticals, airborne humidity control has shifted from an auxiliary utility to a core production driver.
Lithium & Solid-State Chemistries
In standard NMC, LFP, and solid-state battery synthesis, moisture presence hydrolyzes LiPF6 electrolyte salts into hydrofluoric acid (HF), leading to catastrophic micro-dendrite expansion and cell degasification. Modern gigafactories require an ultra-dry ceiling of -40°C to -60°C dew point across winding, stacking, and filling rooms.
Pharma & Bio-Encapsulation
Highly hygroscopic active pharmaceutical ingredients (APIs), effervescent formulations, and lyophilized drugs degrade under ambient relative humidity. Our systems enforce microclimate envelope barriers with relative humidity controlled down to <1% RH, guaranteeing compliance with strict cGMP and FDA requirements.
Aerospace, Defense & GJB Standards
Avionics, missile guidance systems, and ammunition warehouses demand zero-corrosion atmospheres. DryAir operates under the Chinese GJB National Military Quality Standard and ISO 9001, manufacturing hermetically sealed dry storage rooms designed to survive extreme operational cycles.
Deep Engineering Architecture
Psychrometric Route Map & Energy Optimization
A standard gigafactory dry room consumes 35% to 45% of the plant's total thermal and electrical energy. Our continuous patent innovations slash lifecycle operational expenditure (OPEX) without compromising dew point integrity.
Dual-Rotor Cascaded Stripping
Achieving -70°C dew point air via a single rotor requires extreme regeneration temperatures (>160°C). DryAir implements cascaded series rotors where the secondary wheel processes pre-dehumidified return air, dropping necessary regeneration thermal load by up to 32%.
Waste Heat & Steam Condensate Reclamation
Our air handling architecture captures sensible exhaust heat from VOC abatement oxidizers (RTO) and thermal air lines to drive desiccant desorption heaters, recycling megawatt-scale thermal currents across large electrode coating and drying corridors.
Airlock Airflow Dynamics & Leakage Barriers
In ultra-dry rooms, opening doors introduces severe latent moisture spikes. We employ custom dynamic gradient pressurization (+20Pa to +50Pa relative to ambient) combined with continuous purge interlocks, preventing moisture penetration during high-throughput material transfers.
Turnkey EPC Methodology
Five-Stage Lifecycle Delivery: From Design to Validation
We eliminate subcontractor finger-pointing by managing every engineering discipline internally—from psychrometric calculation to structural panel assembly and Dew Point validation.
Step 01
Consulting & Modeling
Comprehensive moisture load assessment accounting for personnel perspiration, building leakage, exhaust ventilation, and latent product loads.
Step 02
Psychrometric Design
Tailored CFD airflow modeling, ductwork friction optimization, cleanroom class certification, and refrigeration skid schematic finalization.
Step 03
In-House Fabrication
Rigorous manufacturing of DHU series desiccant rotors, condenser coils, insulated paneling, and UL-certified micro-PLC controls.
Step 04
Erection & Commissioning
On-site mechanical installation, airtight seal envelope caulking, helium leakage inspection, and balanced ductwork tuning.
Step 05
Validation & Service
Continuous chilled mirror hygrometer validation, 2-year overseas SLA warranty coverage, and remote telemetry fault diagnostics.
Procurement Guide
Dew Point Selection Matrix Across Critical Sectors
A mismatch in dew point sizing results in either product degradation or excessive capital expenditure (CAPEX). Reference this verified matrix before issuing your project tenders.
| Industrial Sector | Specific Process Zone | Target Supply Dew Point | Primary Equipment Architecture |
|---|---|---|---|
| Lithium Battery Gigafactory | Electrolyte Injection, Cell Winding & Sealing | -45°C to -60°C DP | Cascaded Dual-Rotor Desiccant DHU + Turnkey Sealed Enclosure |
| Solid-State & Lithium Metal | Electrode Lamination, Polymer Foil Slitting | -60°C to -70°C DP | Ultra-Low DP Custom Rotor System with Pre-Cooling Condensation |
| Electrode Cathode Lines | Drying Ovens & Solvent Extraction Exhaust | ≥99% Recovery | DryAir ZJRH NMP Solvent Recovery & Heat Exchange Network |
| Pharmaceutical / APIs | Effervescent Tablet Press, Gelatin Packaging | 10% - 20% RH (-10°C DP) | Sanitary GMP Desiccant AHU with Washable Rotor Media |
| Aerospace & Defense | Avionics Assembly, GJB Munitions Storage | ≤30% RH | GJB Standard Ruggedized Military Environmental Control Unit |
| General Industrial Warehousing | Automotive Parts, Chemical Raw Stock Staging | 40% - 60% RH | High-Capacity Refrigerative Dehumidifier Skids |
Global Presence
International Compliance & Localized Field Engineering
DryAir bridges the gap between Asian manufacturing agility and Western engineering standards, ensuring swift permit authorizations and rapid factory site execution.
Multinational Certification Portfolio
Every dry room air treatment assembly can be pre-engineered and certified in accordance with CE (Machinery & Low Voltage Directives), UL 508A (North America electrical panels), CSA (Canada), ASME pressure vessels, and EAC standards for the Eurasian economic union.
Tier-1 Client Pedigree
With past and active deployments across Tesla Gigafactories, Northvolt Ett, CATL, and TTI manufacturing facilities, our installation crews understand international cleanroom protocols, fire barrier integrations, and complex on-site contractor coordination.
Optional 2-Year Overseas SLA Support
To support global procurements, we offer comprehensive overseas maintenance contracts including stocked critical spare parts (drive belts, seals, sensors), bi-annual on-site system recalibrations, and round-the-clock remote telemetric diagnostics via encrypted gateway.
Field Reports & White Papers
Technical Case Studies From Real-World Commissioning
Explore detailed analyses written by DryAir senior HVAC researchers and chemical engineers on solving industrial latent load challenges.
Technical Article
How Does an Oil Gas Condensation Recovery System Work
A deep breakdown of mechanical refrigeration vs. liquid nitrogen deep-chilling in capturing hydrocarbon vapors during loading and terminal distribution.
Process Engineering
Stabilizing NMP Recovery Under 24/7 Coater Operation
Investigating temperature gradient control, automated zeolite wheel desorption, and condensation purity safeguarding in continuous high-yield lines.
GMP Quality
Mitigating Moisture Hazards in Drug Compounding
Understanding powder hydration risks, tableting capping issues, and how precise micro-RH regulation prevents loss of potency in pharmaceutical suites.
Procurement Knowledgebase
Frequently Asked Questions on Dry Room Procurement
Critical answers regarding lead times, performance warranties, engineering boundaries, and overseas facility logistics.
What is the absolute lowest dew point achievable in a DryAir system?
DryAir rotary desiccant dehumidifiers can reliably control supply air down to a minimum of -70°C dew point. This level is essential for high-capacity lithium-ion cell assembly, solid-state electrolyte filling, and pure lithium metal handling where even fractional parts-per-million (ppm) moisture initiates damaging reactions.
Can DryAir deliver full turnkey dry room packages outside China?
Yes. We execute complete EPC turnkey projects globally. Our scope includes pre-sales engineering consulting, architectural envelope design, fire-rated wall/ceiling panel installation, desiccant air handling integration, ductwork fabrication, electrical wiring, SCADA software commissioning, and validation hand-over. We have successfully supplied leading players like Tesla, Northvolt, and TTI.
What international electrical and pressure certifications are supplied?
Depending on destination specifications, DryAir units are engineered and certified to CE standards (European Union), UL and CSA (North American electrical and safety guidelines), ASME (for pressure equipment and heat exchangers), and EAC (Customs Union). We also strictly operate under ISO 9001 and China's GJB National Military Quality Standards.
What recovery yield and purity can the NMP recovery system achieve?
DryAir NMP (N-Methyl-2-pyrrolidone) recovery systems regularly achieve a solvent recovery rate of ≥99% from cathode coater drying exhaust. The recycled crude NMP maintains high concentration levels, drastically slashing fresh solvent procurement expenditure and ensuring full emissions compliance with local environmental authorities.
What warranty and on-site after-sales support are provided to overseas plants?
We provide remote telemetric support, quick-dispatch spare parts warehousing, and dedicated dispatch engineers for installation and commissioning. International customers can also select an optional comprehensive two-year service agreement covering scheduled preventative maintenance visits, seal replacements, and continuous performance tuning.
How does DryAir solve high energy consumption in dry rooms?
We employ cascaded dual-rotor designs, sensible and latent plate heat exchangers, waste heat regeneration coils, and variable-frequency fan drives (VFD). By recycling waste heat from NMP/VOC thermal oxidizers and optimizing regeneration airflows, we routinely reduce client OPEX by 25% to 40% compared to traditional single-rotor dry room setups.
Product Catalogue
Comprehensive Air Treatment & Environmental Systems
Review our complete range of certified desiccant dehumidifiers, specialized dry rooms, solvent recovery units, and industrial VOC abatement equipment.
Complete EPC
Turn-key Dry Room System
Fully certified gigafactory dry room enclosures featuring airtight panel seals, dynamic airlocks, and integrated -70°C dew point dehumidifiers.
DHU Series
Desiccant Dehumidifier
Rotary desiccant dehumidifier units engineered for ultra-low humidity processing, pharma cleanrooms, and military storage facilities.
Solvent Recovery
NMP Recovery System
ZJRH series high-efficiency solvent recapture units guaranteeing ≥99% recovery rate for lithium battery electrode coater exhaust streams.
JEN Series
VOC Abatement System
Industrial thermal oxidizer and deep-cooling condensation system designed to eliminate hazardous emissions from industrial chemical operations.
Pre-Dehumidify
Refrigerative Dehumidifier
DX cooling coil dehumidifiers offering economical latent heat stripping for manufacturing warehouses, pharmaceutical workshops, and pre-cooling.
Pilot Cell Lab
Pilot Cell Lab Dry Rooms
Turnkey rapid-deploy clean dry rooms configured specifically for lithium coin-cell, pouch-cell, and solid-state pilot plant research lines.
GJB Military
Military & Defense Dry Storage
Heavy-duty, vibration-resistant environmental control systems engineered under GJB standards for ammunition preservation and radar hardware storage.
Terminal Vapor
Oil Vapor Condensation Unit
Specialized explosion-proof refrigeration condenser systems engineered for petrochemical tank farms, marine dock fueling, and tank truck loading.
Direct Factory Access
Ready to Engineer Your Low Dew Point Dry Room?
Connect directly with our senior HVAC engineers. Receive full psychrometric load calculations, airflow CFD simulations, and budget models within 24 hours.