Vacuum Desiccators

Vacuum Desiccators, also referred to as vacuum desiccator cabinets or vacuum desiccator chambers, incorporate a desiccator chamber with a vacuum pump to achieve sustained vacuum down to 29.92" Hg. Vacuum desiccator cabinets enable an air-tight seal, therefore allowing sustained atmospheric temperature, humidity, and process-gas mixtures for product assembly, testing, anaerobic processes, or reactive material handling. (Learn more: Vacuum Humidity Control Types)

Acrylic Vacuum Desiccators include Terra's lightweight benchtop vacuum desiccator chambers and full vacuum.

Cylindrical Acrylic Vacuum Chambers with front-swing doors allow high-capacity storage, easy batch processing, and quick parts transfer.

Square Acrylic Vacuum Chambers with removable top-side lids allow frequent changes or adjustments to the contents of the chamber.

Full-Vacuum Gloveboxes rated for ISO 7 / ISO 8 cleanroom environments. Ideal for anaerobic processing in a low-humidity nitrogen or argon environment.

Adjust-a-Shelf Vacuum Desiccators include removable, adjustable desiccator shelves that allow for high-speed processing of smaller parts.

Preinstalled vacuum chamber gauges and valves allow for careful application, monitoring, backfilling, and bleeding of vacuum pressure. The cabinet doors allow high-capacity storage, easy batch processing, and quick parts transfer.

Optional Cable Feedthrough Ports allow for the connection of electronics, probes, and sensors within the vacuum chamber.

Optional Vacuum Control Modules for vacuum testing or processing applications that require sustained and precisely regulated vacuum levels (besides full vacuum)

Vacuum Desiccator Features and Benefits

Critical Environment Solutions

Terra's mission is to help customers in highly regulated industries transform the world with critical environment solutions that improve health, safety, performance, and yields. These environments may comply with stringent UL, ISO, IEST, ASTM and OSHA standards and local requirements.

Multi-pin Feedthrough

Optional 25-pin connector can be used to monitor conditions within the vacuum chamber.

Coaxial SMA Feedthrough

Double-ended, 50-ohm connectors allow small electronics to operate within the chamber.

Optional Vacuum Relief Valve

Adjustable pressure relief valve limits vacuum levels within the chamber, allowing pressure to be maintained at user-configured point. (NOTE: Vacuum pump must remain in operation to maintain desired vacuum level).

Tested to Hold Full Vacuum for 72 hours

Terra's acrylic vacuum chambers are tested to hold 29.9"Hg (99.9% vacuum) with no detectable change over a 72 hour duration. Heavy-duty one-inch-thick walls ensure chamber integrity and protect against cracking.

Precision Vacuum Gauge and Needle Valves

Vacuum chambers can be customized to include precision needle valves for exact application, monitoring, backfill, and bleeding of vacuum pressure in increments of ~1" Hg (~3% vacuum). The hardware is mounted over an extra layer of acrylic to prevent damage to the lid while the chamber is under maximum vacuum.

Inlaid O-Ring

Precision-routed channel ensures uniform seal along chamber perimeter to provide an ultra-low leak rate.

Optional Glass Top for Sensitive Optics

0.75"-thick tempered-glass top allows optical testing and monitoring that requires high clarity.

Bel-Art Space Saver Vacuum Desiccator

Bel-Art Vacuum desiccators degas liquids quickly and easily in the laboratory or classroom. These shatterproof units also provide dry storage and protection for moisture-sensitive products.

Vacuum Desiccators

Vacuum Chamber on Electric Height Adjusting Table
Terra Universal Vacuum Chamber Overview
Acrylic Vacuum Desiccator Cabinet for Cold Room Storage
Welch Rotary Vane Vacuum Pump
PC-Based Vacuum Control with Data Logging

Electric height adjusting tables help position extremely heavy vacuum chambers to the right height to transfer materials, or observe tests within the chamber | 3504-02A displayed Vacuum Chamber on Electric Height Adjusting Table Electric height adjusting tables help easily position extremely heavy vacuum chambers to the right height to allow transfer of materials, or observe tests within the chamber.

Terra Universal Vacuum Chamber Overview This video shows how to operate a vacuum chamber and explores available vacuum chambers and accessories Terra Universal offers

Acrylic vacuum desiccator cabinet for cold room storage; 17”W x 17”D x 13.5”H; vacuum chambers are interconnected | 5235-83 displayed Acrylic Vacuum Desiccator Cabinet for Cold Room Storage These acrylic vacuum desiccator cabinets are used to remove ambient moisture and air to prevent degradation of sensitive materials in cold storage. The front-swing doors help quickly and easily load and unload the chambers. The chambers are also interconnected to one vacuum valve for faster batch processing.

The Rotary Vane vacuum pump withstands water vapor in the vacuum pump's inlet vapor stream | 7906-01A displayed Welch Rotary Vane Vacuum Pump This Rotary Vane vacuum pump offers high water vapor tolerance, light weight and high vacuum performance, making it ideal for many laboratory uses.

eVac connection kit includes solenoid vacuum valve, hosing, clamps, adapters and hardware connection; laptop and chamber not included | 5235-45 displayed PC-Based Vacuum Control with Data Logging The eVAC Digital Vacuum Controller provides highly flexible control over vacuum levels by incorporating an electronically activated bleed valve, which adds the capability to reduce the applied vacuum.

Technical Resources

video

Desiccators: Features and Design overview

Terra's nitrogen-purged desiccator cabinets meet dry storage requirements as low as 1% relative humidity. Standardization simplifies component upgrade, retrofit and replacement. Terra's Smart controllers allow setpoint control and even multiplexed purging for the most critical humidity requirements.

video

Desiccators: Features and Design overview

manual [pdf]

Vacuum Chambers

This manual includes general installation and operating instructions for Terra's Vacuum Chambers.

manual [pdf]

Vacuum Controller

This manual includes general installation and operating instructions for Terra's Vacuum Controller.

white paper [pdf]

Desiccator Storage: The Missing Link

Read about the benefits of Desiccator storage for moisture-sensitive parts, and what can happen to materials when not stored correctly. Originally published in A2C2, April 1999.

catalog [pdf]