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ATOMFAIR® Extreme-Low-Humidity (1%-3% RH) Dry Cabinets AF-DC320D 320L for cleanroom moisture-sensitive storage

Dry Storage Cabinet 320L 1%-3% RH AF-DC320D ATOMFAIR®

$1,620.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

320L extreme-low-humidity dry cabinet with 1%-3% RH control, Honeywell ±3% RH sensor, LCD display, 3 shelves and 900 × 450 × 1010 mm body. Order now.

SKU: AF-EI-E-DC00-ESTD-320L
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Description

320L Extreme-Low-Humidity (1%-3% RH) Dry Cabinets

Dry storage cabinet, extreme-low-humidity control

Product Overview

The Atomfair DC-Series AF-DC320D is a 320L dry cabinet configured for 1%-3% RH relative humidity control, with a standard white cabinet body, outer dimensions of 900 x 450 x 1010 mm, inner dimensions of 855 x 420 x 840 mm, and 3 adjustable shelves.

This model provides extreme-low-humidity storage for highly moisture-sensitive components and process materials that require the strictest dry-storage conditions in this series. It is used to prevent moisture absorption, oxidation, micro-structural degradation, optical haze, solderability loss and other humidity-related damage during storage, inspection, production staging or long-term preservation.

Application scenarios include high-sensitivity electronics storage, semiconductor and optoelectronic cleanrooms, advanced research laboratories, precision optical storage, process-material staging areas, and dry-room support where the lowest humidity grade in this cabinet series is required.

The cabinet integrates automatic electronic dehumidification, high-precision Honeywell temperature and humidity sensing, a digital LCD display for humidity, temperature, operating status and fault information, set-point memory after power interruption, tempered-glass viewing doors, reinforced adjustable shelves and sealed cabinet construction for repeatable daily operation.

Specifications
1. Selected Model & Dimension Parameters
Model Cabinet Body Volume Humidity Grade Humidity Range Outer Size Inner Size Shelf Count
AF-DC320D Standard white powder-coated steel body 320L Extreme-Low-Humidity 1%-3% RH 900 x 450 x 1010 mm 855 x 420 x 840 mm 3
2. Technical Specifications
Parameter Details
Cabinet Body Standard white powder-coated steel body
Humidity Control Range 1%-3% RH
Temperature Display Range 0-99°C
Humidity Display Range 0%-99% RH
Sensor Honeywell temperature and humidity sensor, ±3% RH accuracy and 0.3% annual drift
Display High-definition LCD display for humidity, temperature, operation status and fault codes
Dehumidification System Automatic electronic dehumidification module with no disposable desiccant consumables
Control Mode Microcomputer automatic control with set-point memory after power interruption
Structure 1.2 mm galvanized steel cabinet, 5 mm tempered glass viewing door, magnetic sealing gasket and lockable handle

Key Features and Advantages
  • Selectable humidity grades are split into individual models: A mid-humidity 20%-60% RH, B low-humidity 10%-20% RH, C ultra-low-humidity 1%-10% RH and D extreme-low-humidity 1%-3% RH, allowing the cabinet to match the actual sensitivity of stored materials.
  • High-precision sensing uses a Honeywell temperature and humidity sensor with ±3% RH accuracy and low annual drift for reliable long-term measurement.
  • Efficient automatic dehumidification removes moisture rapidly, requires no disposable desiccant consumables and supports continuous operation with minimal maintenance.
  • Intelligent microcomputer control retains set parameters after power loss and shows real-time humidity, temperature, operating status and fault codes on the LCD display.
  • Robust sealed construction uses a galvanized steel cabinet body, tempered safety glass, double-frame sealing, magnetic gaskets and a lockable handle for stable dry storage.
  • Perforated adjustable shelves support uniform air circulation and make it easier to store components, instruments and samples of different sizes.

Optional Accessories
  • ESD-Safe Anti-Static Coating: Provides electrostatic protection for ESD-controlled production and storage areas, compliant with IEC 61340-5 handling requirements.
  • Internal LED Illumination: Moisture-resistant interior lighting improves visibility when checking stored parts, labels and shelf positions.
  • Premium Stainless-Steel Body: High-grade structural body option for cleanrooms, corrosive environments or facilities with stricter hygiene requirements.
  • Nitrogen Purge System: Fast-purge gas valve configuration supports accelerated dehumidification and inert-atmosphere management.
  • RS485 PC Logging Interface: Enables real-time data logging, remote monitoring and traceability of cabinet humidity and temperature status.
  • Over-Humidity Alarm System: Microcomputer alarm function is triggered when the internal humidity exceeds the configured set point.
For tailored configurations or formal technical quotations regarding these options, please contact our engineering team.
APPLICATION SCOPE: Engineered for research laboratories, cleanroom environments, semiconductor assembly lines, SMT component rooms, optical workshops and high-tech industrial quality-control centers managing moisture-sensitive electronic, optical, chemical and archival assets.
HANDLING REQUIREMENT: The cabinet should be transported with reinforced outer protection, kept upright, and moved with suitable lifting or handling equipment according to its volume. After installation, confirm level placement, door sealing, shelf loading and stable power before storing sensitive materials.
IMPORTANT NOTICE: Confirm the exact capacity, humidity grade, cabinet body type and optional accessories before ordering. Keep the cabinet door closed during normal use and minimize extended ambient exposure of sensitive materials. For ultra-low or extreme-low humidity applications, validate the storage process before formal production use and consider nitrogen purge or alarm options when process risk is high.
CONTROLLED DRY STORAGE SOLUTIONS
For volume selection, humidity grade confirmation or optional configuration, contact our engineering sales team.
EMAIL: inquiry@atomfair.com
Supplier: Atomfair
Brand: ATOMFAIR®

The cabinet maintains 1%-3% RH and requires stable power and level placement for proper operation. It is designed to prevent moisture-induced degradation of stored materials but must be kept closed during use.

  • Transport and Placement: The cabinet must be transported upright with reinforced outer protection and placed on a level surface.
  • Door Sealing: The door must be kept closed during normal use to maintain the low-humidity environment.
  • Power Stability: Stable power supply is required as the control unit retains set-points after interruption.
  • Humidity Validation: Extreme-low humidity operation requires process validation before formal use.
  • Optional Safeguards: Nitrogen purge or over-humidity alarm systems are recommended for high-risk applications.

Follow these steps to safely install and operate the extreme-low-humidity dry cabinet. Proper handling ensures stable humidity control and prevents damage to stored materials.

Required Equipment: Reinforced transport packaging, Lifting equipment, Spirit level, Power cable

  1. Transport the cabinet
    Transport the cabinet upright with reinforced outer protection and suitable lifting equipment.
  2. Level the cabinet
    Place the cabinet on a level surface and confirm level placement using a spirit level.
  3. Connect power
    Connect the cabinet to a stable power supply and verify power-on status.
  4. Maintain humidity
    Keep the cabinet door closed during normal use to maintain humidity stability.
  5. Validate process
    Validate the storage process for extreme-low humidity applications before formal use.

How does the Honeywell sensor's ±3% RH accuracy and 0.3% annual drift affect long-term reliability in extreme-low-humidity (1%-3% RH) storage?

The ±3% RH accuracy is significant relative to the 1%-3% RH setpoint, meaning actual humidity may vary within that range, but the low annual drift of 0.3% ensures that accuracy does not degrade substantially over time, making it suitable for long-term monitoring. The sensor is from Honeywell, a reputable brand, and the cabinet is designed for continuous operation with minimal maintenance.

What are the limitations of using this cabinet in a cleanroom environment regarding the standard white powder-coated steel body versus the optional stainless-steel body?

The standard white powder-coated steel body is suitable for general cleanroom use but may not meet stricter hygiene or corrosion resistance requirements. For cleanrooms with corrosive environments or stringent cleanliness standards, the optional premium stainless-steel body is recommended to avoid particle shedding and chemical resistance issues, as stated in the optional accessories section.

What are the critical installation and handling requirements to ensure the cabinet maintains 1%-3% RH after transport?

The cabinet must be transported upright with reinforced outer protection. After installation, confirm level placement, door sealing, shelf loading, and stable power before storing sensitive materials. The door must be kept closed during normal use to maintain the humidity range, and the cabinet has set-point memory after power interruption for consistent operation.

The AF-DC320D 320L dry cabinet provides extreme-low-humidity control (1-3% RH) using automatic electronic dehumidification and Honeywell sensing, suitable for highly moisture-sensitive materials in cleanroom and lab environments; however, careful transport and process validation are required for reliable operation.

Positive

  • Extreme-low-humidity for sensitive materials: Maintains 1-3% RH to prevent moisture absorption, oxidation, solderability loss, and micro-structural degradation in electronics, optics, and process materials.
  • Maintenance-free electronic dehumidification: Automatic electronic dehumidification eliminates disposable desiccant consumables and supports continuous operation with minimal maintenance.

Trade-offs

  • Transport and installation constraints: The cabinet requires reinforced outer protection, upright transport, and careful level placement and sealing verification after installation to maintain performance.
  • Validation needed for extreme-low humidity: For 1-3% RH operation, users should validate the storage process prior to formal use and consider optional nitrogen purge or over-humidity alarms to mitigate process risk.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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