Engineered for extreme moisture stability, maximum continuous uptime, and lowest specific energy consumption (SEC) in advanced manufacturing.
DP -70°C
DHU series rotary desiccant air treatment systems designed for ultra-dry spaces, deep-cooling dehumidification, and dual-rotor cascading.
Product Specifications
Turnkey EPC
Complete clean-dry room environments incorporating insulated thermal enclosure panels, ultra-low leakage ducting, and airtight validation.
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≥99% Recovery
High-efficiency solvent condensation and recycling system for cathode drying lines, slashing factory chemical OPEX and VOC exhaust.
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Cooling + RTO
Comprehensive environmental compliance systems integrating deep condensation chillers and regenerative thermal oxidizers (RTO).
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High Efficiency
High COP direct expansion refrigeration dehumidifiers engineered for pharmaceutical staging, bulk warehouses, and pre-cooling cycles.
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Solid-State Ready
Custom atmospheric management maintaining supply dew points from -50°C to -70°C for electrolyte injection, winding, and pouch sealing.
Engineering Data
Vapor Recovery
Automated hydrocarbon gas and chemical solvent liquefaction apparatus for fuel terminals, loading stations, and bulk chemical transfer.
Technical Overview
GMP Validated
Hygienic stainless steel dehumidification packages conforming to FDA and EU GMP clean room standards for hygroscopic formulation.
Request Audit SpecHow evolving thermodynamics, sub-zero dew point requirements, and carbon-reduction mandates are reshaping precision manufacturing worldwide.
Lithium-ion chemistries (such as high-nickel NMC and upcoming solid-state electrolytes) undergo instantaneous hydrolysis upon contact with airborne moisture, generating trace Hydrofluoric Acid (HF). This degrades cathode crystalline integrity and invites catastrophic thermal runaway. Maintaining room dew points below -50°C is now an essential industrial mandate.
Industrial desiccant regeneration has historically accounted for up to 43% of total HVAC power in battery gigafactories. Rising electricity costs across the European Union and North America have triggered urgent demand for high-efficiency regeneration modules, heat-pipe recovery loops, and low-temperature molecular sieve wheels that drive down total kilowatt-hour intensity.
With massive electric vehicle investments localized across EMEA and the Americas, tier-one manufacturers demand established Chinese supply chain engineering with verified overseas compliance (such as ASME, UL, CSA, EAC, and CE marks) combined with localized delivery, installation, and field commissioning.
Hangzhou DryAir Treatment Co., Ltd. leads China's desiccant engineering field with over three decades of empirical testing, military-grade manufacturing, and dominant market presence.
As an undisputed leader in China's industrial desiccant dehumidification landscape, DryAir continuously powers Tier-1 clients including CATL, ATL, BYD, EVE Energy, Farasis, Envision, and SVOLT.
Certified under both ISO 9001 and strict GJB military manufacturing frameworks. Our hardware endures rigorous vibration, thermal shock, and anti-corrosive environmental parameters.
Proven execution across global facilities, delivering turn-key projects for global manufacturing leaders like Tesla, Northvolt, and TTI, with complete compliance across CE, UL, CSA, ASME, and EAC standards.
Tailoring psychrometric delivery parameters across sensitive commercial, cleanroom, and manufacturing processes.
Electrolyte filling rooms and pouch sealing demand continuous -45°C to -70°C dew point air. Our dual-rotor cascading configurations ensure zero moisture ingress, preventing cell gassing and internal dendritic degradation.
Effervescent formulations, dry powder inhalers (DPI), and gelatin capsule encapsulation require RH levels strictly bounded between 10% and 25% at 20°C to eliminate powder agglutination and guarantee dosage reproducibility.
Extreme precision wafer stepper cells require airborne molecular contamination (AMC) scrubbing combined with relative humidity stability of ±1% to prevent dimensional distortion in photolithographic optics.
Long-term preservation of tactical missile avionics, munitions, and radar equipment. Deploying sealed desiccant systems prevents galvanic corrosion, mold proliferation, and propellant degradation under GJB compliance.
Coating lines generate concentrated N-Methyl-2-pyrrolidone (NMP) vapor streams. Our ZJRH condensation systems deliver solvent recovery exceeding 99%, returning pure NMP back to the cathode slurry mixer.
High-volume refrigerative and dual-stage desiccant units eliminate evaporator icing, moisture condensation on packaging, and floor slippage hazards in automated deep-freeze logistics hubs.
Specifying target atmospheric criteria avoids costly over-engineering and eliminates critical process yield loss.
| Industrial Process | Dew Point / RH Target | Critical Contaminant Concern | DryAir Integrated Equipment Solution | Standard Certification |
|---|---|---|---|---|
| Lithium-Ion Cell Assembly | -40°C to -60°C Dew Point | Moisture-induced HF Generation | Turn-key Low Dew Point Dry Room System | CE, UL, ISO 9001 |
| Solid-State / Lithium Metal Cells | -60°C to -70°C Dew Point | Anode Oxidation / Hydrolysis | DHU Dual-Rotor Desiccant Dehumidifier | UL, CSA, ASME |
| Cathode Slurry Drying Exhaust | ≥99% Solvent Capture | Atmospheric VOC & NMP Gas | ZJRH Series Closed-Loop NMP Recovery | ATEX, EAC, CE |
| Hygroscopic Tablet Packaging | 10% to 25% Relative Humidity | Powder Caking / Inconsistent Mass | Rotary Desiccant Dehumidifier Unit | GMP, FDA-Grade, CE |
| Military Avionics & Ordnance | ≤35% RH (Ambient Temp) | Surface Corrosion & Circuit Shorting | Defense Environmental Protection Dehumidifier | GJB Standard, ISO 9001 |
| Precision Electronics Staging | 30% to 45% Relative Humidity | Micro-oxidation & Dendrite Growth | Refrigerative Commercial Dehumidifier | CE, CCC, EAC |
| Petrochemical & Loading Stations | National Emission Limits | Hydrocarbon Exhaust Vapor | JEN VOC Abatement Chiller + RTO | ASME, Explosion-Proof |
Pioneering smart thermodynamics, AI-driven adaptive cycles, and net-zero regeneration systems for sustainable manufacturing.
Traditional systems run regeneration heaters continuously at peak duty. Our modern AI-PLC systems monitor ambient psychrometric trends, cleanroom occupancy, and door opening cycles, modulating heating dynamically to deliver up to 28% total energy savings.
DryAir is pioneering the integration of Metal-Organic Frameworks (MOFs) and high-density functionalized silica rotors. These next-generation adsorbents regenerate efficiently at lower temperatures (65°C to 80°C), opening access to plant waste heat recovery loops.
To support rapid gigafactory buildouts, we have standardized containerized low dew point skids. Pre-fabricated, piped, and wired inside our manufacturing plants, these systems reduce on-site commissioning lead times by up to 60%.
A disciplined 5-stage framework guaranteeing transparent accountability from preliminary design to factory validation.
Comprehensive analysis of production layouts, worker metabolic moisture release, building envelope thermal transitions, and cleanroom air change rates.
Thermodynamic airflow modeling, duct pressure drop optimization, desiccant rotor staging calculations, and heat recovery integration.
Modular panel fabrication, desiccant rotor assembly, refrigeration charging, and comprehensive full-load testing inside our certified testing facilities.
Global deployment of DryAir certified field engineers for cleanroom enclosure assembly, duct balancing, leak-rate verification, and dew point run-in testing.
Optional 2-year comprehensive international service contracts, real-time remote telemetry diagnostics, on-demand rotor refurbishment, and stocked local spares.
Detailed technical answers for procurement directors, cleanroom architects, and facility managers.
Select an equipment family below to review technical schematics, capacity charts, and operational specifications.
-70°C Control
High air volume rotary dehumidification units built with silicon-fiber matrix wheels for battery, military, and cleanroom setups.
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Airtight Build
Sealed cleanroom wall and ceiling assemblies engineered for minimum envelope air leakage under strong positive/negative pressures.
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≥99% Purity
Multi-stage condensation systems designed to capture and concentrate volatile industrial solvent vapors from high-temperature exhaust.
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RTO Exhaust
High-destruction-efficiency VOC abatement units ensuring industrial plant compliance with international air quality standards.
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DX Chilling
Refrigerative air drying equipment ideal for warehouse moisture balance, pre-cooling stages, and general production halls.
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Gigafactory Spec
Full engineering, supply, and installation packages for high-capacity EV and grid-scale energy storage battery dry rooms.
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Oil-Gas Spec
Engineered to liquefy and extract hydrocarbon vapors generated in fuel loading docks, storage terminals, and chemical tanks.
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Hygienic Clean
Washdown-capable desiccant air treatment platforms for solid-dosage forms, biologicals, and medical packaging cleanrooms.
Explore ProductRequire project-specific dew point sizing, an energy audit for your regeneration loops, or certified turnkey dry room budget modeling? Our engineering team responds within one business day.