Project references across global battery manufacturing
Five engineered product families, each designed around one question buyers ask first: what humidity, solvent or emission level must the process hold, 24/7, at the lowest energy cost?
DP -70°C DHU series rotary desiccant dehumidifiers deliver stable low-dew-point air where refrigeration alone cannot reach — from battery dry rooms to military storage.
Turnkey EPC Complete humidity-controlled rooms — enclosure, air handling, dehumidification, controls and validation — delivered under a single contract.
Recovery ≥99% Captures N-Methyl-2-pyrrolidone from electrode coater exhaust for reuse, cutting solvent spend and stack emissions.
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Cooling + RTO Deep-cooling condensation and regenerative thermal oxidation to treat VOC waste gas and recover oil vapors.
Learn MoreCost-effective moisture removal for warehouses, workshops and pre-cooling stages ahead of desiccant systems.
Learn MoreEach sector carries different moisture risks. We size systems around your product's sensitivity, not around a catalog number.
Moisture reacts with electrolyte to form HF, degrading capacity and safety. Our dry rooms protect electrode, assembly and electrolyte filling zones.
Hygroscopic powders, effervescent tablets and gelatin capsules demand tightly controlled low RH to prevent caking, sticking and degradation.
Integrated environmental systems built under the GJB national military standard to protect equipment, ammunition and avionics from corrosion.
Oil gas condensation recovery and VOC abatement capture vapors during storage, loading and unloading before they reach the atmosphere.
Stable dew point protects sensitive components, optical coatings and moisture-sensitive materials throughout production and storage.
Hangzhou DryAir Treatment Co., Ltd. has specialized in rotary desiccant dehumidification since 2010. Today we rank among the top three desiccant dehumidifier manufacturers in China, controlling supply air down to -70°C dew point.
Our engineers have delivered humidity control for leading cell makers including CATL, ATL, BYD, EVE, Farasis, Envision and SVOLT, and overseas for Tesla, Northvolt and TTI. That project history means we already know the failure points buyers worry about — air leakage, latent loads from personnel, regeneration energy — and design them out from day one.
Through our turnkey model, one team owns the result: pre-sales consulting, system design, manufacturing, installation, commissioning and long-term maintenance.
Every claim below can be verified during a factory visit, video audit or reference call with existing customers.
6 staff with master's or doctoral degrees, 2 national registered HVAC engineers, 8 senior engineers and 58 experienced technicians.
74 technical specialistsDelivered for Tesla, Northvolt and TTI, with products certified to CE, UL, CSA, ASME and EAC for European, North American and EAEU markets.
5 export certificationsTop 3 in China's desiccant dehumidification industry with over 30% market share, built on repeat orders from tier-one battery makers.
30%+ market shareProduction capacity of 200+ units per month supports parallel gigafactory phases without stretching lead times.
200+ units / monthISO 9001 and GJB national military standard systems, with every unit verified in our in-house performance testing room before shipment.
Factory-tested unitsRemote diagnostics, spare parts supply, on-site commissioning and an optional 2-year service agreement for overseas customers.
Optional 2-year planA transparent, five-stage workflow that keeps procurement, engineering and plant teams aligned from first enquiry to stable production.
Process review, moisture load and target dew point definition.
Psychrometric design, airflow layout and energy optimization.
In-house fabrication and factory performance testing.
On-site erection, commissioning and dew point validation.
Maintenance, spare parts and continuous performance support.
Specifying the wrong humidity target is the most expensive mistake in a dry room tender: too loose and product yield suffers, too tight and energy costs escalate. Use these typical design ranges as a starting point for your RFQ.
Engineer's note: Final targets depend on room volume, air leakage, personnel count and process heat. Share your layout and we will return a load calculation with the recommended system configuration.
| Application | Typical Target | Recommended System |
|---|---|---|
| Li-ion cell assembly & electrolyte filling | -40 to -60°C DP | Turn-key dry room |
| Next-generation & lithium-metal cells | Down to -70°C DP | Desiccant dehumidifier |
| Electrode coating & drying exhaust | ≥99% recovery | NMP recovery system |
| Hygroscopic pharma powders & capsules | 10–30% RH | Desiccant dehumidifier |
| Military equipment & ammunition storage | ≤40% RH | Desiccant dehumidifier |
| General warehouses & pre-cooling | 45–60% RH | Refrigerative dehumidifier |
| Fuel loading & solvent exhaust | Emission limits | VOC abatement system |
Practical knowledge from real installations to help you compare technologies and specify with confidence.
Oil gas condensation recovery systems help fuel storage and handling facilities capture oil vapors during tank filling, loading and unloading before they are released into the atmosphere.
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NMP is widely used in electrode slurry preparation and coating. Learn how to keep recovery efficiency stable, reduce solvent loss and control emissions in round-the-clock production.
Read More From powder processing to tablet compression, capsule filling and packaging, excess moisture affects product quality and efficiency. Here is how to identify and prevent the risks.
Read MoreStraight answers on performance, certification and support. Need project-specific data? Our engineering team responds within one business day.
Contact Our EngineersModel ranges, airflow capacities, dew point curves and reference projects — everything your engineering and procurement teams need to shortlist.
