EPC Turnkey
Turn-key Dry Room System
End-to-end engineered enclosure, airtight ceiling systems, precision air balancing, and continuous -70°C dew point control.
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Primary Deployments
Featured Turn-key Dry Room & Dehumidification Systems
Engineered for cell assembly, NMP purification, and stable continuous dew points down to -70°C.
EPC Turnkey
-70°C DP
Desiccant Dehumidifier
High-efficiency DHU series rotary rotor dehumidifier units engineered for sub-zero dew point stability across gigafactories.
Dehumidifier Details
≥99% Rate
NMP Recovery System
High-recovery recycling loops capturing N-Methyl-2-pyrrolidone solvent from lithium battery electrode coating processes.
NMP Solutions
RTO Compliant
VOC Abatement System
Deep-cooling condensation coupled with regenerative thermal oxidation (RTO) for clean, zero-exhaust regulatory compliance.
VOC Equipment
Industrial AHU
Refrigerative Dehumidifier
High-capacity condensation systems for cleanrooms, raw material storage, and pre-cooling prior to desiccant rotors.
Refrigeration Lines
Battery Grade
Battery Dry Room Solutions
Scalable clean-dry enclosures engineered for pouch, prismatic, and cylindrical lithium cell assembly lines.
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Low OPEX
Solvent Recovery AHU
Integrated energy-recovery condensation towers built to capture solvent exhaust and reuse clean heated process air.
Exhaust Recovery
Low Emission
Environmental VOC Plants
Turnkey gas purification scrubbers and thermal destruction systems engineered for massive volume battery manufacturing.
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Technical Whitepaper
Engineering Next-Generation Turnkey Dry Rooms for Global Gigafactories
Deconstructing psychrometric limits, desiccant wheel thermodynamics, and structural envelope hermeticity in industrial dehumidification.
Psychrometric Dew Point Control (-40°C to -70°C)
Moisture ingress is the primary catalytic hazard in lithium-ion and solid-state cell assembly. Water vapor interacts with lithium hexafluorophosphate (LiPF6) electrolyte to produce hydrofluoric acid (HF), leading to rapid capacity fade, internal gas generation, and catastrophic cell degradation. Turn-key dry rooms must deliver continuous supply dew points down to -70°C (moisture content below 0.0033 g/kg of dry air).
- Dual-stage silica gel / molecular sieve rotors
- High differential vapor pressure transfer
- Continuous regenerative thermal management
Envelope Integrity & Airtight Architectural Design
A turnkey dry room is only as reliable as its physical enclosure. A micro-breach in panel tongue-and-groove joints can overwhelm desiccant capacity. Modern dry room construction utilizes continuous insulated polyurethane/rockwool panels with double-tongue silicone-gasket seals, vapor barrier floor transitions, airlocks, and positive pressure cascades (+30Pa to +50Pa relative to ambient corridors) to stop latent infiltration.
- Zero-permeation envelope panels
- Personnel airlocks and equipment buffer rooms
- Pressure-gradient active balancing controls
Thermodynamic Energy Recovery & OPEX Mitigation
HVAC systems in ultra-dry environments account for up to 45% of a battery manufacturing plant's operational expenditures. Through heat recovery wheels, waste-heat regeneration loops from plant chillers, and variable frequency drive (VFD) blowers, modern turnkey systems slash reactivation thermal energy loads by 30% to 50%, directly aligning gigafactories with international net-zero carbon goals.
- Condenser waste heat regeneration
- Internal desiccant wheel purge sectors
- Smart PLC dynamic dew point scheduling
Strategic Capability
Why China Factories Lead the Global Turn-key Dry Room Market
From comprehensive industrial supply cluster integration to unparalleled delivery speed and multi-market certifications.
Massive Scale & Fast Lead Times
With production capacities exceeding 200 units per month and integrated fabrication centers, Chinese manufacturers compress engineering-to-commissioning timelines by 40% compared to traditional Western EPCs.
Stringent Dual Quality Compliance
Built to ISO 9001 and high-precision GJB aerospace/military standards. Complete modular builds are certified with CE, UL, CSA, ASME, and EAC for seamless deployment across Europe, North America, and Asia.
Tier-1 Battle-Tested Experience
Proven engineering maturity honed directly within China's dominant battery supply chain, having delivered hundreds of ultra-low dew point plants for CATL, BYD, EVE Energy, SVOLT, ATL, and global gigafactories.
Multi-Disciplinary Technical Teams
DryAir's technical team features 74 specialists, including registered HVAC engineers, PhD researchers, senior thermodynamic designers, and field installation technicians dedicated to overseas on-site validation.
-70°C
Minimum Dew Point Control
≥99%
NMP Solvent Recovery Rate
30%+
China Market Share
200+
Monthly Unit Manufacturing Capacity
74
Engineers, PhDs & Technical Experts
Industrial Matrix
Localized Application Scenarios & Sector Solutions
Tailoring microclimates to specific chemical tolerances, regulatory environments, and cleanliness classes.
Lithium-Ion & Solid-State Batteries
Electrolyte injection, cell winding, and final sealing require extreme humidity isolation. Solid-state battery chemistries (sulfide/oxide electrolytes) demand dew points reaching -60°C to -70°C to prevent hazardous hydrogen sulfide (H2S) gas formation and electrolyte matrix breakdown.
Pharmaceutical Cleanrooms & APIs
For hygroscopic active pharmaceutical ingredients (APIs), effervescent formulations, and soft capsule drying, ambient moisture causes agglomeration and microbiological growth. Turnkey dry rooms guarantee 1%–10% RH under strict cGMP and FDA guidelines.
Aerospace, Defense & Precision Optics
Compliant with GJB military standards for rocket propellant storage, radar transmitter testing, missile guidance bay maintenance, and semiconductor optics assembly where even nano-scale moisture condensations create irreversible optical distortion and corrosion.
Electrode Coating NMP Recovery
Modern battery coaters emit high-temperature exhaust saturated with volatile NMP. DryAir’s multi-stage closed-circuit condensation towers extract solvent down to trace ppm levels, achieving ≥99% solvent recovery and continuous VOC abatement.
Automotive Glass & PVB Laminating
During polyvinyl butyral (PVB) film insertion between safety glass plies, high humidity creates moisture bubbles and delamination over vehicle service life. Dry room systems maintain stable 18%–22% RH at 20°C clean room environments.
Petrochemical & VOC Condensation
Oil gas condensation units for fuel terminals and bulk chemical shipping tanks. Low-temperature cooling cycles compress volatile vapors back to usable liquids before air discharge, achieving environmental emissions compliance.
Procurement Criteria
Global Technical Specification & Sizing Matrix
Evaluate operating parameters to configure your EPC request for quotation (RFQ) correctly.
| Application Sector | Process Dew Point Target | Air Cleanliness | Recommended System Configuration | Core Energy Strategy |
|---|---|---|---|---|
| Lithium Battery Cell Assembly | -40°C to -55°C DP | ISO Class 7 / Class 8 | Turnkey Dry Room + DHU Dual Rotor AHU | Regeneration waste heat loop + VFD control |
| Solid-State & Li-Metal R&D | -60°C to -70°C DP | ISO Class 6 | Ultra-Low DP Custom Dry Room System | Triple-stage rotor + high-pressure envelope |
| Electrode Drying Line Exhaust | ≥99% NMP Recovery | Industrial Process Area | ZJRH Closed-Loop Condensation Unit | Sensible air-to-air plate heat exchanger |
| Active Pharma Ingestion (APIs) | 10% - 25% RH (-10°C to -20°C DP) | GMP Grade A/B/C | Desiccant Dehumidifier with HEPA AHU | Low-pressure steam regeneration cycle |
| Military Avionics & Ordnance | ≤30% RH at ambient temp | Standard Clean Enclosure | GJB Standard DHU Industrial Dehumidifier | Electric / Gas fired indirect regeneration |
| Bulk Raw Material Storage | 45% - 60% RH | Standard Warehouse | High-Capacity Refrigerative Dehumidifier | Direct expansion cooling refrigeration |
| Chemical Tank VOC Venting | <20 mg/m³ VOC Emission | Hazardous Rated (ATEX / Ex) | JEN Multi-Stage VOC Condensation & RTO | Deep sub-zero mechanical cooling |
Structured Execution
The 5-Stage Turn-key Dry Room Engineering Lifecycle
Mitigating risks across process auditing, psychrometric calculation, fabrication, commissioning, and lifetime service.
01
Audit & Modeling
Auditing latent personnel moisture loads, equipment heat dissipation, door frequency, air infiltration volumes, and local psychrometric variables.
02
Thermodynamic Design
Sizing desiccant wheel geometry, chilled water coils, duct static pressure grids, cleanroom velocity vectors, and regeneration thermal circuits.
03
Factory Fabrication
Manufacturing casing, CNC precision sheet metal work, rotor balancing, panel sealing assembly, and FAT test runs in certified test chambers.
04
On-Site Erection
Deployment of airtight wall/ceiling systems, duct installation, pressure differential validation, PLC sensor tuning, and continuous -70°C dew point sign-off.
05
Lifecycle Support
Optional two-year overseas engineering SLA, spare parts inventory dispatch, remote IoT telemetry monitoring, and rotor performance maintenance.
Technical FAQ
Frequently Asked Engineering & Procurement Inquiries
Detailed technical answers for EPC contractors, facility directors, and procurement leaders.
What is the lowest dew point a DryAir desiccant dehumidifier can achieve?
Hangzhou DryAir rotary desiccant dehumidifiers can reliably control process supply air down to a minimum of -70°C dew point (equivalent to <0.0033 g/kg humidity ratio). This ultra-dry environment is essential for lithium battery cell assembly, electrolyte filling, and next-generation lithium-metal or solid-state cell manufacturing to prevent HF formation and thermal runaways.
Do you supply complete turnkey dry rooms for battery factories outside China?
Yes. DryAir delivers full EPC turnkey dry room projects covering pre-sales consulting, thermodynamic engineering design, airtight enclosure manufacturing, air handling equipment fabrication, global shipment, on-site installation, commissioning, and validation. DryAir has engineered and delivered systems for international customers such as Tesla, Northvolt, and TTI.
Which certifications do DryAir systems hold for European and North American markets?
DryAir systems are fully customized to meet destination codes and can be supplied with CE, UL, CSA, ASME, and EAC compliance certifications. Internally, the company manufactures equipment under the ISO 9001 quality management standard and the GJB national military standard system for superior manufacturing precision.
What recovery rate can a DryAir NMP recovery system reach on coating lines?
DryAir ZJRH series NMP recovery systems are engineered to achieve an overall solvent recovery rate of ≥99% on lithium-ion electrode coating and drying lines. This drastically lowers virgin solvent raw material purchasing overhead and keeps stack emissions well below strict environmental regulatory thresholds.
What after-sales and on-site support is provided for international buyers?
Overseas clients benefit from direct on-site commissioning by DryAir HVAC engineers, full local personnel operational training, dedicated spare parts supply, and remote IoT diagnostics. In addition, an optional comprehensive two-year service agreement is available to guarantee maximum uptime during plant ramp-up.
How does DryAir design dry rooms to withstand heavy internal personnel loads?
Each operator in a dry room releases significant latent perspiration and respiratory moisture. DryAir's engineering team calculates personnel shift densities and integrates high-velocity localized air showers, double-door interlocked airlocks, and specialized supply diffuser arrays that form an invisible dry-air curtain over workbenches, preserving the -70°C target continuously.
Equipment Catalog
Explore DryAir Complete Product Lines & Systems
Explore our full line of industrial dehumidification, solvent recovery, and environmental control technologies.
DHU Series
Industrial Desiccant System
Rotary desiccant dehumidifiers capable of supplying ultra-dry air down to -70°C dew point for specialized battery dry rooms.
Explore DHU Series
Turnkey Dry Room
Turn-key Dry Room System
Full envelope enclosures, structural framework, air handling equipment, and dew point validation delivered as an integrated unit.
Turnkey Solutions
ZJRH Series
NMP Recovery System
Captures volatile solvent exhaust with >99% recovery rates to lower raw material spend on lithium-ion coating lines.
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JEN Series
VOC Abatement System
Deep-cooling condensation coupled with regenerative thermal oxidation (RTO) for extreme environmental compliance.
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Pre-Cooling DX
Refrigerative Dehumidifier
High-efficiency mechanical refrigeration systems for warehouses, drying workshops, and pre-cooling stages.
Refrigerative Lines
Gigafactory Grade
Battery Enclosure Systems
Precision HVAC enclosures engineered for gigafactory pouch, prismatic, and cylindrical battery assembly zones.
Enclosure Specs
Solvent Reuse
Industrial Solvent Scrubbers
Closed-loop recycling solutions designed to recover and purify industrial exhaust solvent fumes efficiently.
Scrubber Specs
Zero-Exhaust
Thermal Oxidizers & RTO
Heavy-duty regenerative thermal oxidizers guaranteeing ultra-low VOC emissions for large-scale industrial plants.
RTO Solutions