Dry Cabinet 320L Anti-Static Extreme-Low RH, ATOMFAIR®

Description

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

Dry storage cabinet, extreme-low-humidity control

Product Overview

The Atomfair DC-Series AF-DC320DF is a 320L anti-static dry cabinet configured for 1%-3% RH relative humidity control, with an anti-static 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

Model	Cabinet Body	Volume	Humidity Grade	Humidity Range	Outer Size	Inner Size	Shelf Count
1. Selected Model & Dimension Parameters
AF-DC320DF	Anti-static 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		Anti-static powder-coated steel cabinet 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

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®

Constraints

The cabinet requires upright transport, level installation, and stable power to maintain door seal integrity and consistent dehumidification. The door must remain closed during normal use to prevent moisture ingress, and the humidity setpoint should be validated for extreme-low-humidity applications.

Transport Orientation: The cabinet must be transported upright and secured with reinforced outer protection to prevent structural damage.
Installation Surface: Place the cabinet on a level surface and confirm level placement to maintain door seal integrity.
Power Supply Stability: Connect the cabinet to a stable power source to ensure continuous dehumidification and set-point memory retention.
Humidity Setpoint Validation: For extreme-low-humidity applications, validate the storage process before formal production use and consider optional nitrogen purge or alarm systems.
Door Usage Protocol: Keep the cabinet door closed during normal operation and minimize the duration of ambient exposure for stored moisture-sensitive materials.

HowTo

This procedure describes the initial setup and operation of the dry cabinet to achieve stable 1%-3% RH conditions. Follow these steps to ensure proper installation, stabilization, and safe storage of moisture-sensitive materials.

Required Equipment: Lifting equipment

Transport the Cabinet
Transport the cabinet upright with reinforced outer protection and suitable lifting equipment.
Position on Level Surface
Place the cabinet on a level surface and verify level placement to ensure door seal integrity.
Adjust Shelves
Adjust the perforated shelves to the desired positions for uniform air circulation and material storage.
Connect Power
Connect the cabinet to a stable power source and verify that the LCD display shows current humidity and temperature readings.
Set Humidity Setpoint
Set the desired humidity setpoint using the microcomputer control; the setpoint is retained after power interruption.
Allow Stabilization
Allow the cabinet to reach and stabilize at the target humidity range before placing sensitive materials inside.
Store Materials
Store moisture-sensitive materials inside the cabinet and keep the door closed during normal operation.

FAQ

What is the trade-off between using the Atomfair AF-DC320DF's electronic dehumidification versus the optional nitrogen purge system for maintaining 1-3% RH?

The electronic dehumidification module achieves 1-3% RH without disposable desiccant consumables and requires minimal maintenance, while the optional nitrogen purge system provides accelerated dehumidification and inert-atmosphere management. The trade-off is that nitrogen purge requires an ongoing gas supply and infrastructure, whereas electronic dehumidification is self-contained and continuous.

Can the AF-DC320DF be integrated into a cleanroom environment with existing environmental monitoring systems?

Yes, the cabinet includes a Honeywell temperature and humidity sensor with ±3% RH accuracy and 0.3% annual drift, and an optional RS485 PC logging interface enables real-time data logging and remote monitoring. The anti-static powder-coated steel body and sealed construction are compatible with cleanroom standards, but integration requires specifying the RS485 interface during ordering.

What handling and installation procedures are critical for the 320L dry cabinet to prevent humidity instability after setup?

The cabinet must be transported upright with reinforced outer protection, placed on a level surface, and the door sealing confirmed via the magnetic gasket and double-frame seal. After installation, stable power and shelf loading verification are required; the microcomputer controller retains set-points after power interruption, but opening the door during operation will cause a temporary humidity increase.

Assessment

The Atomfair AF-DC320DF 320L anti-static dry cabinet provides extreme-low-humidity storage at 1%-3% RH using consumable-free electronic dehumidification, suitable for semiconductor, optoelectronic, and precision optical applications, but requires disciplined door management and process validation for critical use.

Positive

Extreme-low-humidity storage capability: Maintains 1%-3% RH for highly moisture-sensitive components, preventing oxidation, micro-structural degradation, and solderability loss.
Consumable-free dehumidification: Automatic electronic dehumidification eliminates recurring desiccant replacement costs and supports continuous low-maintenance operation.

Trade-offs

Operational discipline required: Cabinet door must remain closed during normal use; extended ambient exposure of sensitive materials and frequent opening can compromise humidity stability.
Validation needed for critical processes: For extreme-low-humidity applications, storage process validation is recommended before formal production use; optional nitrogen purge or over-humidity alarm may be required for high-risk processes.

Quality Standards & Performance Verification

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.

Shipping & Returns

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