DP -70°C
Desiccant Dehumidifier
Rotary honeycomb silica/molecular sieve systems engineered for stable deep moisture adsorption across battery assembly lines.
View Solution Specs
Engineered Product Portfolio
Precision Industrial Dehumidifiers & Solvent Treatment Systems
Explore our core industrial air handling lines, built to meet stringent CE, UL, CSA, ASME, and EAC standards with PLC-driven closed-loop automation.
DP -70°C
Turnkey EPC
Turn-key Dry Room System
End-to-end design, modular hermetic enclosures, dual-rotor deep dehumidifiers, and environmental validation for battery gigafactories.
Explore Dry Rooms
Recovery ≥99%
NMP Recovery System
Closed-loop condensation recovery designed for electrode coating exhaustion, drastically lowering operational raw material costs.
NMP System Data
RTO + Cooling
VOC Abatement System
Deep-cooling condensation combined with regenerative thermal oxidizers (RTO) to neutralize hazardous stack emissions.
VOC Solutions
High COP
Refrigerative Dehumidifier
Energy-optimized vapor compression dehumidification units tailored for warehouses, clean packing, and primary pre-cooling stages.
Review Units
Ultra-Dry Air
Low Dew Point Rotary Unit
Dual-cascade runner desiccant system delivering precise -50°C to -70°C dew point air for sensitive pouch and prism cell electrolyte handling.
Explore Dual-Rotor
Petrochemical
Chemical Vapor Recovery
Multistage compression and chilled condensation units capturing hydrocarbons and dangerous organic gases at transfer terminals.
Learn Chemical Unit
Integrated AHU
Integrated Factory HVAC Module
Custom packaged desiccant air handling units integrated with chillers, heat recovery coils, and automated Siemens S7 PLC controls.
Factory Engineering
Global Landscape Analysis
The Strategic Imperative of Automatic Microclimate Control in High-Tech Manufacturing
Across the international manufacturing ecosystem, humidity control has transitioned from a basic comfort HVAC requirement to a mission-critical process parameter dictating product longevity, safety tolerances, and yield viability.
Lithium-Ion & Solid-State Batteries
Traces of atmospheric moisture react aggressively with lithium hexafluorophosphate (LiPF6) in electrolyte fluids, producing toxic hydrofluoric acid (HF). Maintaining an airtight environment with dew points below -40°C to -70°C is non-negotiable to prevent internal shorting and accelerated degradation.
Pharmaceutical & Biologics Processing
Hygroscopic compounds, active pharmaceutical ingredients (APIs), and effervescent formulations cake, lose bio-stability, or fail tablet stamping pressures when relative humidity exceeds 15–20% RH. Automatic industrial desiccant dehumidifiers guarantee stringent cGMP compliance.
Semiconductor & Optoelectronics
Photolithography and dry etching steps exhibit electrostatic discharges and nanoscale oxidation upon micro-fluctuations in atmospheric moisture. Precision PLC automation controls sensible and latent heat loads simultaneously with rapid response loops.
Aerospace & Military Storage
Built under the stringent GJB national military standard, our ruggedized dehumidifiers protect sensitive missile guidance systems, radar avionics, and munitions propellant from micro-corrosion and chemical decomposition during depot preservation.
Process Engineering
Localized Implementation Scenarios: Engineering for Extreme Ambient Differentials
Deploying automatic desiccant dehumidification systems globally demands acute engineering adaptability to local psychrometric realities, from tropical high-humidity coastal zones to sub-zero continental climates.
Tropical High-Enthalpy Climates
In regions such as Southeast Asia and the US Gulf Coast, incoming ambient air carries extreme moisture loads exceeding 28 g/kg. DryAir integrates dual-stage chilled-water pre-cooling coils to mechanically condense out bulk vapor before air impacts the desiccant rotor, cutting regeneration heater energy by up to 42%.
Rigid European Energy Standards (EcoDesign)
Meeting Western and Northern European directives requires optimized Specific Moisture Extraction Rates (SMER). Our installations integrate secondary waste-heat recovery loops using exhaust thermal energy to preheat the desiccant reactivation air stream, aligning with strict EU carbon budgets.
North American Industrial Codes (UL/CSA/NFPA)
Delivered units for American Gigafactory programs feature complete compliance with UL 508A electrical panels, NFPA 79 machinery safety standards, and ASME-coded pressure vessels, ensuring seamless permit acquisition and on-site city inspection sign-offs.
Supply Chain Superiority
Hangzhou DryAir: Supply Chain Resilience & Scaling Velocity
Operating from Hangzhou, Zhejiang—the manufacturing epicentre of global clean technology—Hangzhou DryAir Treatment Co., Ltd. leverages comprehensive vertical integration to outpace traditional lead-time constraints.
200+ Systems Monthly Throughput
Our dedicated manufacturing base spans heavy structural metal fabrication, precision laser-welding, rotor assembly bays, and climate-controlled assembly areas, enabling parallel construction of multi-megawatt battery dry room arrays without backlog.
Domestic Component Cluster Advantage
With direct proximity to tier-1 component suppliers for blowers, heat exchangers, variable frequency drives, and synthesized silica gel desiccant substrates, raw lead time is contracted by 35% compared to Western competitors.
Certified Testing Environmental Chamber
Every industrial unit undergoes dynamic testing inside our in-house factory test chamber. We verify airflow CFM, dew point reduction velocity, and electric/steam heat consumption curves before dispatch, preventing commissioning delays.
Engineering White Paper
Technical Roadmap: Dew Point Optimization & Process Matching
Selecting appropriate dehumidification technology prevents massive lifecycle energy waste. Compare operational parameters across distinct industrial topologies below:
| Industrial Application | Target Humidity / Metric | Core Dehumidification Topology | System Reference |
|---|---|---|---|
| Lithium Battery Cell Assembly & Electrolyte Injection | -40°C to -60°C DP | Turnkey Double-Rotor Desiccant System + Sealed Enclosure | Turnkey Dry Room System |
| Next-Gen Solid State & Lithium-Metal R&D | -65°C to -70°C DP | Ultra-Low Dew Point Molecular Sieve Rotor + Deep Subcooling | Desiccant Dehumidifier |
| Electrode Slurry Coating & Solvent Evaporation | ≥99% Solvent Capture | Multistage Closed-Circuit Chilled Condensation Loop | NMP Recovery System |
| Active Pharmaceutical Ingredients (API) & Gelatin | 10% to 25% RH | Silica Honeycomb Rotor with Hygienic Stainless AHU Casework | Desiccant Dehumidifier |
| Defense & Munitions Long-Term Preservation | ≤35% to 40% RH | Mil-Standard Desiccant Unit with Integrated Desorption | Industrial Defense Unit |
| Raw Material Bulk Storage & Preliminary Chilling | 45% to 60% RH | Direct Expansion (DX) Refrigerative Condensation | Refrigerative Dehumidifier |
| Volatile Chemical Loading & Stack Emissions | <20 mg/Nm³ VOC | Cryogenic Condensation + Regenerative Thermal Oxidation (RTO) | VOC Abatement System |
Audited Track Record
Verified by Industry Leaders Across Global Cleanrooms
Hangzhou DryAir’s technological stability is proven not merely in test labs, but across hundreds of gigawatt-hours of cell production lines globally.
Tier-1 Battery Consortia
Long-term environmental engineering partner to global market drivers including CATL, BYD, ATL, EVE Energy, SVOLT, Farasis, and Envision AESC. Our systems sustain continuous automated uptime during mass assembly.
International Projects
Direct supply contracts completed for global advanced manufacturing giants including Tesla, Northvolt, and TTI, fulfilling rigorous site acceptance tests (SAT) and local trade compliance protocols.
Multi-Jurisdiction Certification
All exported machinery can be tailored with full CE marking, UL 1995/60335 compliance, CSA Canadian safety validation, ASME pressure vessel coding, and EAC customs certification for frictionless international installation.
Innovation Roadmap
Technological Roadmap: The Evolution toward Cognitive HVAC Systems
The industrial dehumidification sector is moving rapidly toward intelligent microclimate management. Hangzhou DryAir is pioneering dynamic control architectures to optimize heavy energy profiles.
Dynamic Psychrometric Modeling (AI-PLC)
Traditional systems run at static full-load reactivation. Our next-generation controllers integrate predictive algorithms correlating external weather forecasts with internal personnel occupancy patterns, modulating regeneration fan speeds and thermal input to trim parasitic power loads by 18-24%.
Nanostructured Hybrid Desiccants
Collaborating with tier-1 materials laboratories, DryAir is deploying metal-organic framework (MOF) impregnated honeycomb rotors. These advanced media achieve desorption temperatures below 85°C (compared to 130°C+ for conventional silica gel), facilitating full operation on industrial low-grade waste steam.
IoT Remote Prognostics & Cloud Telemetry
Direct edge-gateway connections stream rotor pressure drop (ΔP), seal degradation velocity, and compressor thermal dynamics to our global cloud, triggering preventive maintenance alerts well before a rotor failure compromises dry room dew points.
Turnkey Delivery Framework
A Rigorous 5-Stage EPC Lifecycle Architecture
From initial moisture load modeling to overseas cleanroom validation, Hangzhou DryAir retains single-source accountability.
Stage 01: Audit & Calculation
Exhaustive evaluation of process envelope: air-infiltration rates, doorway cycling, internal operator count, latent personnel moisture emissions, and target operational dew point tolerances.
Stage 02: Psychrometric Design
CAD/BIM airflow layout, selection of primary and secondary rotor sizes, face velocity tuning, piping schematics, duct pressure calculation, and comprehensive energy balance modeling.
Stage 03: Precision Fabrication
In-house CNC machining, insulation panel assembly, sealing gasket installation, PLC integration, and mandatory testing inside the climatic chamber prior to overseas shipping containers.
Stage 04: On-Site Erection
DryAir field engineers supervise enclosure erection, duct sealing, electrical terminations, sensor calibrations, leak-tight smoke tests, and final dew point pull-down validation.
Stage 05: Global Support
Lifetime access to direct technical teams, guaranteed factory spare parts supply, remote IoT monitoring, and optional 2-year overseas warranty extensions for peace of mind.
Procurement Due Diligence
Frequently Asked Technical & Procurement Questions (FAQ)
Direct engineering responses to key queries submitted by procurement teams, MEP consultants, and plant engineering heads.
What is the absolute lowest controllable dew point achievable?
DryAir’s proprietary dual-rotor cascaded desiccant systems control process supply air down to a validated -70°C dew point (equivalent to <0.0033 g/kg humidity ratio). This baseline is indispensable for high-nickel lithium-ion assembly, solid-state cell prototyping, and anhydrous chemical manufacturing.
Can DryAir engineer and deliver turnkey dry rooms internationally?
Yes. We provide complete EPC delivery covering pre-sales consulting, thermodynamic modeling, air barrier casework fabrication, dehumidifier systems, HEPA filtration, installation supervision, and commissioning. We have completed successful overseas projects for high-profile clients including Tesla, Northvolt, and TTI.
How do your NMP recovery systems attain ≥99% solvent capture?
Our ZJRH series utilizes closed-circuit cooling condensation with air-to-air heat exchangers coupled to chilled-water condensation coils. This extracts NMP vapors from the electrode coater exhaust with recovery rates guaranteed above 99%, recirculating heated, dry air back into the drying oven to drastically reduce plant power demand.
What international standards and safety certifications apply?
Our manufacturing operations are audited under ISO 9001 quality management and the GJB national military standard. Based on client export requirements, systems are certified under CE (Machinery & Low Voltage Directives), UL 1995/508A for the USA, CSA for Canada, ASME for pressure vessels, and EAC for the Eurasian customs territory.
How does Hangzhou DryAir manage overseas technical commissioning?
We provide on-site field dispatch of bilingual HVAC commissioning engineers to handle installation supervision, balancing, and SAT sign-off. Furthermore, clients can access an optional 2-year overseas warranty plan, remote edge-IoT telemetry diagnostics, and guaranteed dispatch of critical spare parts.
What reactivation heat sources can be utilized?
To optimize factory OPEX, DryAir desiccant rotors can be configured with electric heaters, direct or indirect natural gas burners, high-pressure steam coils, thermal oil circuits, or hybrid configurations taking advantage of factory waste heat loops.
Factory Equipment Catalog
Select Your Automated Industrial Solution
Shortlist systems engineered directly by Hangzhou DryAir. Direct factory technical support and turnkey EPC project pricing available.
DHU Series
Desiccant Dehumidifier
High-efficiency honeycomb runner system offering multi-zone reactivation and automated constant dew point regulation.
View Specifications
Full EPC
Turn-key Dry Room System
Airtight cleanroom envelopes with integrated deep dehumidifiers designed to sustain -50°C to -70°C dew point zones.
Explore Turnkey Dry Rooms
ZJRH Series
NMP Recovery System
Proven solvent recovery architecture exceeding 99% efficiency for industrial battery electrode drying ovens.
Inquire NMP System
JEN Series
VOC Abatement System
Deep chilling condensation paired with RTO equipment for ultra-clean exhaust compliance in chemical processing.
Review VOC System
Standard DX
Refrigerative Dehumidifier
Cost-effective mechanical moisture removal for warehouses, seed preservation, and pharmaceutical primary areas.
Check Refrigerative Units
GJB Standard
Military & Aerospace Units
Reinforced environmental systems designed to prevent corrosion of critical avionics and sensitive defense stores.
Defense Specifications
cGMP Grade
Pharma Cleanroom System
Hygienic double-skin stainless-steel casings providing sterile, low-humidity air streams for sensitive drug compounding.
Review GMP Models
Petro Recovery
Oil Gas Recovery Unit
Safe condensation and vapor capture technology deployed for terminal storage tanks and hydrocarbon transport racks.
Vapor Recovery Details
Direct Factory Consultation
Request Your Psychrometric Load Calculation & Engineering Quote
Submit your process square footage, target dew point requirements, and ambient baseline. Our senior thermodynamic engineers respond within 24 business hours with preliminary psychrometric load curves.