DP -70°C
DHU Desiccant Dehumidifier
Advanced rotary honeycomb dehumidifier designed for ultra-dry air environments where traditional refrigeration fails.
- Dew Point Control: Down to -70°C
- Heat recovery regeneration bypass
Precision Atmosphere Equipment
Industrial Dehumidifier Dryers & Process Climate Systems
Configured to withstand extreme industrial latent loads. Engineered with proprietary silica gel and molecular sieve matrices to ensure continuous dew point stabilization.
DP -70°C
Turnkey EPC
Turn-key Dry Room System
Complete engineered cleanroom envelopes with integrated desiccant airflow loops for EV gigafactories.
- Comprehensive Envelope & AHU Control
- Validated for gigafactory operations
≥99% Efficiency
ZJRH NMP Recovery System
Recovers N-Methyl-2-pyrrolidone solvent vapors directly from cathode coater lines with zero thermal compromise.
- Purity recovery rate: ≥99%
- Substantial OPEX emission reduction
RTO Deep-Cooling
JEN VOC Abatement System
Deep condensation integrated with regenerative thermal oxidizers (RTO) for extreme solvent destruction.
- Compliant with EU/US EPA norms
- Recovers heavy chemical hydrocarbons
High COP
Refrigerative Dehumidifier
Commercial pre-cooling air processing units designed for high latent heat extraction in large storage facilities.
- Pre-cooling integration for desiccant
- Energy efficient scroll compressor units
R&D Pilot Scale
Compact Pilot Dry Chamber
Packaged ultra-low dew point units tailor-made for institutional battery labs, pouch-cell pilot lines, and medical R&D.
- Dew Point Range: -50°C to -65°C
- Plug-and-play footprint modularity
Multi-Stage Rotor
Industrial Cascaded Rotor Dryer
Dual-rotor cascaded configurations engineered to isolate latent humidity down to -70°C dew point under 100% fresh air intake.
- Air volume: 3,000 to 150,000 m³/h
- Gas, steam, or electric reactivations
GMP Standard
GMP Desiccant Dryer Station
Sanitary-spec stainless steel air preparation units delivering microbiological integrity and RH control for capsule drying.
- Clean-in-place sanitary design
- Precision control: ±1% Relative Humidity
Strategic Industry Analysis
The Evolution of Industrial Dehumidifier Dryers: Global Macro Trends & Engineering Demand
From clean-room microenvironments to multi-gigawatt battery production facilities, ultra-low dew point air systems have evolved from auxiliary HVAC equipment into core yield-governing production machines.
1. The Global Electrification Wave
With EV adoption accelerating globally, lithium-ion, sodium-ion, and solid-state cell facilities require continuous air stability below -40°C to -70°C dew point. Water molecules induce moisture-catalyzed decomposition of LiPF6 into hazardous Hydrofluoric Acid (HF), which permanently impairs cell life and safety.
2. Energy Decoupling & OPEX Mitigation
Industrial desiccant regeneration traditionally represents up to 45% of total plant thermal power consumption. Modern procurement demands heat-pump regeneration coupling, exhaust condensation waste-heat harvesting, and variable rotor drive technologies that reduce specific power consumption per kilogram of removed moisture.
3. Stringent Cross-Border Certification
Exporting engineered systems to North America, Europe, and the CIS requires full alignment with electrical, mechanical, and safety mandates. Systems must be designed natively to satisfy CE machinery directives, UL/CSA panel standards, ASME pressure vessel requirements, and EAC customs compliance.
Industrial Modernization
China Factory 4.0: Engineering Depth & Supply Chain Resilience
Hangzhou DryAir integrates automated structural sheet fabrication, specialized desiccant wheel synthesis, and digitalized psychrometric test platforms to outpace international project schedules.
Vertical Industrial Integration
From CNC casing assembly and custom fin heat exchangers to PLC automation logic programming, our manufacturing is fully integrated in-house to protect delivery schedules and quality control.
Gigafactory Scale Delivery
With an active monthly output exceeding 200 units, DryAir readily executes multi-gigawatt projects across staged phases without straining assembly lead times or engineering capacity.
GJB Defense & ISO Framework
Our manufacturing is certified under both ISO 9001 and the Chinese GJB National Military Standard, ensuring high-standard leak tightness and mechanical reliability.
Verified Factory Auditing
Every DHU unit passes through our certified psychrometric enthalpy difference laboratory to confirm dew point suppression and rotor performance before export dispatch.
-70°C
Lowest Dew Point Achieved
≥99%
NMP Solvent Recovery
30%+
China Market Leadership
200+
Monthly Unit Capacity
74
HVAC Specialists & Engineers
Mission-Critical Deployment
Engineered Environmental Control for High-Stakes Production
DryAir customizes airflow dynamics, desiccant volume, and cooling stages to match the unique moisture limits of sensitive commercial and industrial applications.
Zone 01 / Clean Energy
Lithium-ion Battery Dry Rooms
Maintains ambient moisture below -40°C to -60°C dew point across cell winding, electrolyte injection, and seal welding to stop toxic HF formation.
Zone 02 / Pharmaceutical
Pharmaceutical & Biosynthesis
Prevents agglomeration, caking, and bio-degradation during fluidized bed drying, softgel encapsulation, and dry powder filling.
Zone 03 / Defense & Aero
Military, Naval & Aerospace
Guards precision radar components, optical sensors, rocket assemblies, and munitions stockpiles against electrochemical corrosion.
Zone 04 / Chemical
Solvent & Fuel Vapor Recovery
Condenses volatile hydrocarbons and industrial VOCs from chemical holding tanks and terminals prior to release, ensuring compliance.
Zone 05 / Microelectronics
Semiconductors & Flat Displays
Eliminates surface moisture defects during wafer lithography, probe card testing, and optical prism bonding operations.
Procurement Specification
Dew Point Selection Guide & Technical Baseline
Selecting exact psychrometric control parameters prevents costly over-specification while safeguarding strict manufacturing yield thresholds.
| Target Industrial Process | Required Dew Point / Moisture Target | Recommended Machine Architecture | Target Industry Sector |
|---|---|---|---|
| Solid-State & Next-Gen Lithium Cells | -60°C to -70°C Dew Point | Cascaded Multi-Rotor Desiccant Dry Air System | Energy Storage & Automotive EV |
| Commercial Li-ion Cell Assembly & Filling | -40°C to -55°C Dew Point | Integrated Turnkey Industrial Dry Room Package | Global Gigafactories |
| Cathode Coating Oven Solvent Extraction | ≥99% NMP Recovery Efficiency | ZJRH Solvent Deep Condensation Array | Battery Material Processors |
| Effervescent Drug & Gelatin Capsule Production | 10% to 25% Relative Humidity | Sanitary Stainless Steel Modular Dehumidifier | Bio-Pharma & Healthcare |
| Defense Avionics & Ordnance Logistics | ≤35% RH / Anti-Corrosion | GJB Standard Ruggedized Desiccant System | Defense & Aerospace Stores |
| Bulk Raw Materials Cold Storage Pre-Cooling | 40% to 60% Relative Humidity | Direct-Expansion Industrial Refrigerative Unit | Logistics Warehousing |
| Petroleum Vapor Venting & Chemical Storage | Below Strict EPA / VOC Emission Limits | JEN Multi-Stage RTO Abatement System | Refineries & Tank Terminals |
Verifiable Performance
Engineering Credentials You Can Audit
Trusted by tier-one international OEMs including Tesla, Northvolt, CATL, ATL, BYD, EVE Energy, Farasis, Envision, SVOLT, and TTI.
74 Technical Specialists
Our R&D team features 6 PhD and Master graduates, 2 registered HVAC design engineers, 8 senior mechanical engineers, and 58 skilled technicians managing custom designs.
End-to-End Turnkey Delivery
From initial latent moisture calculations and 3D psychrometric design to modular factory assembly, on-site erection, and cleanroom commissioning, one engineering team owns the SLA.
Global Certification & Lifecycle Support
Systems are built to meet CE, UL, CSA, ASME, and EAC standards. Overseas customers can utilize remote IoT telemetry alongside our optional 2-year on-site international maintenance contracts.
Complete System Configurations
Standard & Custom Dehumidifier Dryer Solutions
Engineered for cleanroom integration, pilot testing lines, pharmaceutical encapsulation suites, and chemical recovery plants.
Heavy Duty
DHU Series Low-Dew-Point Unit
Continuous industrial-duty rotary air dryers delivering down to -70°C dew point air with variable moisture extraction.
View Specifications
Cleanroom EPC
Full Turnkey Dry Room Suite
Engineered structural enclosure, airlock vestibules, psychrometric treatment systems, and commissioning under one contract.
Explore Dry Rooms
99%+ Recovery
NMP Solvent Extraction Rig
Condensation loops recovering high-purity N-Methyl-2-pyrrolidone solvent from electrode coating exhaust streams.
View Recovery Specs
Emission Control
Regenerative Thermal Oxidizer
VOC deep condensation combined with catalytic oxidizers to clean stack emissions and recover usable oil vapors.
Learn About VOC
High CFM Air
Refrigerative Air Processing Unit
Direct condensation dehumidifier optimized for logistics warehouses, archival rooms, and pre-cooling stages.
View Refrigerative
Compact Skid
Skid-Mounted Pilot Dry Unit
Self-contained mobile desiccant dry chamber system tailored for pilot manufacturing and university research.
Explore Pilot Skids
Rotor Assembly
Modular Desiccant Rotor System
High-performance silica gel and molecular sieve matrices available with custom drive motors, seals, and energy bypasses.
Inspect Rotor Assemblies
GMP Certified
Sanitary GMP Air Dehumidifier
All-stainless interior casings with HEPA terminal filters and sealed seams for strict pharmaceutical compliance.
View Pharma Dehumidifiers
Procurement Technical Guide
Frequently Asked Questions by Global Engineering Teams
Detailed engineering clarifications regarding psychrometric performance, certification standards, international commissioning, and service agreements.
What is the lowest dew point a DryAir desiccant dehumidifier can stably maintain?
DryAir rotary desiccant dehumidifiers control supply air down to a stable minimum of -70°C dew point (equivalent to less than 0.0033 g/kg moisture content). This performance profile is essential for advanced lithium-metal pouch cell assembly, solid-state electrolyte processing, and automated electrolyte filling zones where moisture causes catastrophic cell degradation.
Do you deliver complete turnkey dry rooms outside of mainland China?
Yes. DryAir provides complete turnkey EPC delivery for battery dry rooms across Europe, North America, Southeast Asia, and the Middle East. Our scope covers pre-sales psychrometric calculation, room envelope paneling with airtight interlocks, AHU mechanical fabrication, desiccant air drying systems, automated PLC controls, on-site supervision, commissioning, and final validation. We have delivered systems for international projects including Tesla, Northvolt, and TTI.
Which global compliance and electrical certifications do your machines satisfy?
Depending on destination codes, DryAir systems can be engineered with CE (Machinery and Low Voltage Directives), UL 508A control panel certifications, CSA standards for Canadian deployment, ASME boiler/pressure vessel stamps, and EAC certification for the Eurasian Economic Union. Our factory operates under audited ISO 9001 and Chinese GJB National Military Standard quality systems.
What recovery rate and purity does the DryAir NMP recovery system reach?
DryAir ZJRH Series NMP recovery systems reach a certified solvent recovery rate exceeding 99% when operating alongside high-speed cathode coating ovens. This efficiency keeps exhaust stack concentrations safely within strict international clean air limits, while returning purified solvent for distillation and re-entry into slurry preparation.
What warranties, spare parts, and after-sales support are provided to overseas plants?
Overseas clients receive remote IoT telemetry diagnostics, complete sets of critical commissioning spare parts, and on-site engineering dispatch for installation and testing. Furthermore, customers can opt for our comprehensive 2-year international service agreement, which covers structured bi-annual audits, rotor re-certification, sensor recalibration, and guaranteed on-site technical response times.
Request Custom Psychrometric Sizing & Pricing
Submit your factory layout, fresh air volume, and target dew point. Our senior HVAC engineering team will return a customized psychrometric heat-mass calculation within one business day.