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Terra Part #PriceShips in
Benchtop SDPVC Stainless Steel Single-Side Access 3 Chambers 22" 20.5" 16.25" 1609-02B$5,85121-27 Days
Benchtop SDPVC Stainless Steel Single-Side Access 2 Chambers 22" 20.5" 16.25" 1609-01B$4,00018-24 Days
Benchtop SDPVC Stainless Steel Dual-Side Access 3 Chambers 22" 20.5" 16.25" 1609-08B$6,81921-27 Days
Benchtop SDPVC Stainless Steel Dual-Side Access 2 Chambers 22" 20.5" 16.25" 1609-07B$4,63618-24 Days
Floor SDPVC Stainless Steel Single-Side Access 4 Chambers 22" 20.5" 16.25" 1609-03B$8,17221-27 Days
Floor SDPVC Stainless Steel Single-Side Access 8 Chambers 22" 20.5" 16.25" 1609-06B$13,93521-27 Days
Floor SDPVC Stainless Steel Single-Side Access 6 Chambers 22" 20.5" 16.25" 1609-05B$11,31721-27 Days
Floor SDPVC Stainless Steel Dual-Side Access 4 Chambers 22" 20.5" 16.25" 1609-09B$9,42921-27 Days
Floor SDPVC Stainless Steel Dual-Side Access 8 Chambers 22" 20.5" 16.25" 1609-12B$16,66821-27 Days
Floor SDPVC Stainless Steel Dual-Side Access 6 Chambers 22" 20.5" 16.25" 1609-11B$13,28821-27 Days
Floor SDPVC Stainless Steel Single-Side Access 4 Chambers 22" 20.5" 16.25" 1609-04B$7,27121-27 Days
Floor SDPVC Stainless Steel Dual-Side Access 4 Chambers 22" 20.5" 16.25" 1609-10B$8,61321-27 Days
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Product Details

• Clean, low-humidity storage environment for sensitive parts, designed for nitrogen gas purging

• Each chamber includes an Automatic RB® (Relief/Bleed) Valve to prevent over-pressurization

• Plenum chamber distributes nitrogen gas to each storage chamber

• Static-dissipative PVC viewing windows for full visibility of stored contents

• Nitrogen purge controllers sold separately (specify during checkout)

• Stainless steel wire racks in each chamber for shelving and trays (sold separately)

• Cleanroom-compatible LiftLatches™ minimize scraping and strain on door hinges

• One-piece, mechanically attached door gaskets

• Nitrogen-purged, general purpose desiccators in 304 stainless steel

• Full cabinet RH control, flowmeter or automatic controller

• Single side access. Floor or benchtop

• Static-dissipative PVC, SS-framed doors

• 2, 3, 4, 6, and 8 chambers

• Chambers: 21.5 W x 20" D x 15.5" H

• Cabinet: 25-47" W, 20" D, 32.5-65" H

Series 400 Stainless Steel NitroPlex™-Ready Desiccators

Standard Features

  • A Stainless Steel Construction
    Provides optimal durability, stands up to disinfecting agents
  • B Doors with Dissipative PVC Viewing Windows, One-Piece Door Gaskets
    Prevents ESD and minimizes particle attraction; "e"-profile gasket mechanically attached to stainless steel reinforcement frame to prevent outgassing adhesives; one-piece design won’t slough or separate
  • C Grounding Terminals
    Simplifes ground connection
  • D Grounded Door Latch
    Ergonomic LIftLatches prevent strain on wrists and door hinges
  • E Stainless Steel Racks
    Allow height adjustment of optional stainless steel shelves and trays
  • F Stainless Steel Hinges
    Non-contaminating hinges contribute to a long service life under heavy use
  • G Automatic RB® Valve
    Prevents overpressure; acts as a check valve (one included per chamber)

Optional Features

  • 1 NitroPlex Humidity Control System
    Includes a humidity sensor/control module in each chamber; nitrogen is dlivered only the chamber that exceeds its RH set point and ceases when set point is recovered. Cuts nitrogen consumption by 80%!
  • 2 Stand with Casters
    4" and 12" models available, with and without locking casters

Not Shown: Optional Nitrogen Generator provides un uninterrupted supply of nitrogen up to 99% pure to eliminate reliance on bulky canisters; optional shelves available in solid orperforated stainless steel

General Purpose Desiccators

  • Desiccators: Features and Design overview
  • Video Overview of Stainless Steel Desiccator Cabinets Stainless Steel Desiccator Cabinets
  • Stainless Steel Desiccator Cabinets with Chamber-Level Humidity Control Series 400 Stainless Steel Desiccator Cabinets
Video Overview of Stainless Steel Desiccator Cabinets
Stainless Steel Desiccator Cabinets with Chamber-Level Humidity Control

Features & Benefits

Features and Benefits

NitroPlex Explained

NitroPlex: Faster Recovery Time, Increased Yields!

The NitroPlex™ Desiccator Control System provides state-of-the-art automated humidity control to guarantee the integrity of stored components.

Each microprocessor-based multiplexed sensor/display module, one installed in each desiccator chamber, enhances desiccator performance and economizes on nitrogen expenses. It contains a miniaturized moisture sensor that reads the internal humidity level within ± 2% of full scale. The LED readout displays this value or the programmable set point for that chamber. The set point is adjustable from ambient to 0% RH (the unit does not add moisture).

When the humidity climbs above the set point in any chamber, the NitroPlex automatically directs a high-flow purge of clean, dry nitrogen only to the chamber where it is needed, and only for as long as necessary to bring the humidity back below the set point value. An adjustable time delay maintains the high-flow purge for a short period of time--long enough to purge any moisture or contaminants that may have entered—and then shuts off, economizing on nitrogen use.

The Automatic RB® (Relief/Bleed) Valve, installed on each chamber, ensures that moisture and contaminants quickly exit the chamber into which they enter and do not migrate to others. It also protects the cabinet against overpressures.

Status alarms are included in each NitroPlex module to warn the user if any door is left open or if the system has been in high purge mode too long, a condition that could indicate an interruption in the gas supply.

This ultra-efficient purging system ensures that your desiccator system maintains the conditions you specify, even during periods of frequent access or very high ambient humidity. Each time a part is accessed and a door closed the system recovers the desired humidity level in a fraction of the time required by conventional systems (see related sidebar). This reduced recovery time eliminates the risk of moisture-related damage to even the most sensitive parts.

What's Your Application?

The standard NitroPlex™ system provides unsurpassed moisture control in dozens of storage applications. Temperature, gas or biological sensors expand the range of critical operations.

  • Microelectronics components, SMDs, hybrid packages
  • Storage of PCBs for rework
  • Pharmaceutical R&D studies
  • Kitting of high-precision watch components
  • Pass-through transfer of night-vision electronics
  • Lithium battery development
  • Humidity testing of cosmetics
  • Accelerated life testing of ICs
  • Animal inhalation and toxicology research
Which critical control application can you find in your facility?

Stainless Steel Door Frame

Stainless steel-reinforced door frame with non-adhesive, "e-profile" gaskets ensures a long service life; shown on Series 400 Stainless Steel NitroPlex desiccator.

Ergonomic LiftLatches

Prevents hinge and door damage caused by the twisting and turning and applies uniform pressure to the non-adhesive door gasket; available with locking mechanism.

Automatic RB Valve

During normal operation, it allows a continuous low-level release of gas to maintain a positive pressure. It also functions as a check valve to ensure that air and contaminants cannot enter the enclosure in the event of a momentary negative pressure.


Available NitroPlex Module automatically monitors and maintains low-RH set point to protect delicate samples while conserving nitrogen purge gas.

Stainless Steel Desiccator Cabinet with Racks and Shelving

All-stainless steel Series 400 Desiccator cabinets include stainless steel wire racks and a perforated pull-out shelf; order additional perforated or non-perforated shelves to suit storage requirements.

Built-in Plenum Distributes Dry Gas to Each Chamber

Manual flowmeter or automated system controls nitrogen flow rates to maintain RH across entire cabinet. Built-in plenum distributes dry gas to each chamber.

Individual RH control for Each Chamber

NitroPlex automated system for each chamber controls RH levels down to 1%. Directs nitrogen to individual chambers to maintain their humidity levels below set point. Cuts operational cost by reducing nitrogen consumption; protects products by cutting RH recovery time and moisture exposure.

Desiccator Access

Single-side access features a door opposite a non-opening rear wall, often with a plenum chamber for uniform gas distribution. Vacuum desiccator access is typically via a removable top. Dual-side access lets operators on both sides access stored contents.

Doors - The First Failure Point of a Desiccator Cabinet

Terra’s stainless steel door frames eliminate the need for internal reinforcements, which create particle surfaces and compromise cleaning. Unlike other doors with glue-on anti-bow pieces, Terra’s doors use no adhesives. This eliminates particle traps, sources of outgassing—and extends the strength and service life of the desiccator.

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • 3-inch Diameter Caster Set
    Casters are easily retrofitted for mobility. Products can be rolled out of the way when cleaning or relocated as workflow changes.
  • Dual Purge and NitroWatch
    Terra’s Dual Purge and NitroWatch relative humidity controllers maintain a low-RH set-point inside a desiccator or glove box; they provide variable purge control that ensures continuous positive pressure and eliminates nitrogen waste.
  • Relative Humidity Temperature Data Logger
    Battery-powered RH/Temperature Data Logger measures and records internal desiccator environment at specified intervals; download to a PC to meet QA/QC or regulatory requirements.
  • Nitrogen Generator
    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.

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Manuals & Resources

Manuals & Resources

Desiccator Dual Purge System

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