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Terra Part #PriceShips in
Benchtop Static Dissipative PVC 1 Chamber 11.5" 11.5" 11.5" 3950-21A$7281-3 Days
Benchtop Static Dissipative PVC 1 Chamber 16.625" 16.125" 11.625" 3950-21D$1,0261-3 Days
Benchtop Static Dissipative PVC 3 Chambers 22.125" 22.125" 11.625" 3950-12D$2,6201-3 Days
Benchtop Static Dissipative PVC 3 Chambers 22.125" 16.125" 11.625" 3950-14D$2,4701-3 Days
Benchtop Static Dissipative PVC 3 Chambers 16.625" 16.125" 11.625" 3950-13D$2,1561-3 Days
Benchtop Static Dissipative PVC 2 Chambers 22.125" 22.125" 11.625" 3950-09D$1,8851-3 Days
Benchtop Static Dissipative PVC 2 Chambers 22.125" 16.125" 11.625" 3950-11D$1,7801-3 Days
Benchtop Static Dissipative PVC 2 Chambers 16.625" 16.125" 11.625" 3950-10D$1,5201-3 Days
Benchtop Acrylic 1 Chamber 11.5" 11.5" 11.5" 3950-51A$5681-3 Days
Benchtop Acrylic 1 Chamber 16.625" 16.125" 11.625" 3950-51D$7891-3 Days
Benchtop Acrylic 3 Chambers 22.125" 22.125" 11.625" 3950-42D$2,0131-3 Days
Benchtop Acrylic 3 Chambers 22.125" 16.125" 11.625" 3950-44D$1,8971-3 Days
Benchtop Acrylic 3 Chambers 16.625" 16.125" 11.625" 3950-43D$1,65918-24 Days
Benchtop Acrylic 2 Chambers 22.125" 22.125" 11.625" 3950-39D$1,4491-3 Days
Benchtop Acrylic 2 Chambers 22.125" 16.125" 11.625" 3950-41D$1,3681-3 Days
Benchtop Acrylic 2 Chambers 16.625" 16.125" 11.625" 3950-40D$1,16813-15 Days
Benchtop Amber Acrylic 1 Chamber 16.625" 16.125" 11.625" 3950-81D$7991-3 Days
Benchtop Amber Acrylic 2 Chambers 22.125" 22.125" 11.625" 3950-69D$1,83313-15 Days
Benchtop Amber Acrylic 2 Chambers 16.625" 16.125" 11.625" 3950-70D$1,43613-15 Days
Benchtop Amber Acrylic 2 Chambers 22.125" 16.125" 11.625" 3950-71D$1,68713-15 Days
Benchtop Amber Acrylic 3 Chambers 22.125" 22.125" 11.625" 3950-72D$2,66418-24 Days
Benchtop Amber Acrylic 3 Chambers 16.625" 16.125" 11.625" 3950-73D$2,38718-24 Days
Benchtop Amber Acrylic 3 Chambers 22.125" 16.125" 11.625" 3950-74D$2,52818-24 Days
Floor Static Dissipative PVC 4 Chambers 22.125" 22.125" 11.625" 3950-15D$3,3561-3 Days
Floor Static Dissipative PVC 4 Chambers 16.625" 16.125" 11.625" 3950-16D$2,7991-3 Days
Floor Static Dissipative PVC 4 Chambers 22.125" 16.125" 11.625" 3950-17D$3,1621-3 Days
Floor Acrylic 4 Chambers 22.125" 22.125" 11.625" 3950-45D$2,5801-3 Days
Floor Acrylic 4 Chambers 16.625" 16.125" 11.625" 3950-46D$2,15218-24 Days
Floor Acrylic 4 Chambers 22.125" 16.125" 11.625" 3950-47D$2,43018-24 Days
Floor Amber Acrylic 4 Chambers 22.125" 22.125" 11.625" 3950-75D$3,17918-24 Days
Floor Amber Acrylic 4 Chambers 16.625" 16.125" 11.625" 3950-76D$2,75718-24 Days
Floor Amber Acrylic 4 Chambers 22.125" 16.125" 11.625" 3950-77D$2,96518-24 Days
Floor Static Dissipative PVC 5 Chambers 22.125" 22.125" 11.625" 3950-18D$4,0801-3 Days
Floor Static Dissipative PVC 5 Chambers 16.625" 16.125" 11.625" 3950-19D$3,42918-24 Days
Floor Static Dissipative PVC 5 Chambers 22.125" 16.125" 11.625" 3950-20D$3,8421-3 Days
Floor Acrylic 5 Chambers 22.125" 22.125" 11.625" 3950-48D$3,1371-3 Days
Floor Acrylic 5 Chambers 16.625" 16.125" 11.625" 3950-49D$2,63718-24 Days
Floor Acrylic 5 Chambers 22.125" 16.125" 11.625" 3950-50D$2,95418-24 Days
Floor Amber Acrylic 5 Chambers 22.125" 22.125" 11.625" 3950-78D$3,90618-24 Days
Floor Amber Acrylic 5 Chambers 16.625" 16.125" 11.625" 3950-79D$3,33118-24 Days
Floor Amber Acrylic 5 Chambers 22.125" 16.125" 11.625" 3950-80D$3,58718-24 Days
Floor Static Dissipative PVC 6 Chambers 22.125" 22.125" 11.625" 3950-00D$4,97318-24 Days
Floor Static Dissipative PVC 6 Chambers 16.625" 16.125" 11.625" 3950-01D$4,20418-24 Days
Floor Static Dissipative PVC 6 Chambers 22.125" 16.125" 11.625" 3950-02D$4,68218-24 Days
Floor Acrylic 6 Chambers 22.125" 22.125" 11.625" 3950-30D$3,82318-24 Days
Floor Acrylic 6 Chambers 16.625" 16.125" 11.625" 3950-31D$3,23218-24 Days
Floor Acrylic 6 Chambers 22.125" 16.125" 11.625" 3950-32D$3,59918-24 Days
Floor Amber Acrylic 6 Chambers 22.125" 22.125" 11.625" 3950-60D$4,42518-24 Days
Floor Amber Acrylic 6 Chambers 16.625" 16.125" 11.625" 3950-61D$3,99418-24 Days
Floor Amber Acrylic 6 Chambers 22.125" 16.125" 11.625" 3950-62D$4,24718-24 Days
Floor Static Dissipative PVC 8 Chambers 22.125" 22.125" 11.625" 3950-03D$5,6451-3 Days
Floor Static Dissipative PVC 8 Chambers 16.625" 16.125" 11.625" 3950-04D$5,70118-24 Days
Floor Static Dissipative PVC 8 Chambers 22.125" 16.125" 11.625" 3950-05D$6,29818-24 Days
Floor Acrylic 8 Chambers 22.125" 22.125" 11.625" 3950-33D$5,14618-24 Days
Floor Acrylic 8 Chambers 16.625" 16.125" 11.625" 3950-34D$4,38218-24 Days
Floor Acrylic 8 Chambers 22.125" 16.125" 11.625" 3950-35D$4,84218-24 Days
Floor Amber Acrylic 8 Chambers 22.125" 22.125" 11.625" 3950-63D$5,52418-24 Days
Floor Amber Acrylic 8 Chambers 16.625" 16.125" 11.625" 3950-64D$4,73718-24 Days
Floor Amber Acrylic 8 Chambers 22.125" 16.125" 11.625" 3950-65D$5,16318-24 Days
Floor Static Dissipative PVC 10 Chambers 22.125" 22.125" 11.625" 3950-06D$8,1681-3 Days
Floor Static Dissipative PVC 10 Chambers 16.625" 16.125" 11.625" 3950-07D$6,9821-3 Days
Floor Static Dissipative PVC 10 Chambers 22.125" 16.125" 11.625" 3950-08D$7,68218-24 Days
Floor Acrylic 10 Chambers 22.125" 22.125" 11.625" 3950-36D$6,2801-3 Days
Floor Acrylic 10 Chambers 16.625" 16.125" 11.625" 3950-37D$5,36818-24 Days
Floor Acrylic 10 Chambers 22.125" 16.125" 11.625" 3950-38D$5,9061-3 Days
Floor Amber Acrylic 10 Chambers 22.125" 22.125" 11.625" 3950-66D$6,51418-24 Days
Floor Amber Acrylic 10 Chambers 16.625" 16.125" 11.625" 3950-67D$5,93518-24 Days
Floor Amber Acrylic 10 Chambers 22.125" 16.125" 11.625" 3950-68D$6,30618-24 Days
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Product Details

• Factory-installed flowmeter allows nitrogen gas purging of the entire cabinet

• Built-in plenum distributes dry gas to each chamber

• Order with Dual Purge and NitroWatch systems for enhanced humidity control

• Multi-chamber cabinets isolate different types of stored materials

• Reduced impact on other chambers when one door opens

• Stainless steel racks installed in each chamber; shelves adjust in 1" increments

• Chrome-plated, ergonomic LiftLatches™ do not scrape the chamber like ordinary rotary latches

• Stainless steel-framed doors extend service life and provide a better door seal

• Mechanically attached, one-piece gasket does not creep or crack

• Automatic RB® Valves release moisture-laden air from the cabinet and prevent over-pressurization

• Electrical grounding available; specify when ordering (included standard on Static-Dissipative PVC models)

• Includes one flowmeter, one automatic relief/bleed valve per chamber, and one perforated stainless steel shelf (order additional shelves separately)

Adjust-A-Shelf Nitrogen Desiccator Cabinets

Standard Features

  • A Grounding Terminals
    Standard on all static-dissipative PVC to prevent ESD
  • B Plenum Chamber
    Located in rear of cabinet, plenum ensure uniform flow of nitrogen gas to all chambers; minimizes moisture migration
  • C Stainless Steel-Framed Doors with One-Piece Gasket
    "e"-profile gasket mechanically attached to stainless steel reinforcement frame to prevent outgassing adhesives; one-piece design won’t slough or separate
  • D Electropolished Stainless Steel Wire Racks
    Allow positioning of racks and trays on 1” increments
  • E Stainless Steel Shelf
    One included; order additional solid or perforated shelves or removable trays
  • F Grounded Door Latch
    Prevents ESD damage to stored parts (standard on SDPVC cabinets)

Optional Features

  • 1 Dual Purge™ System
    Provides a variable flow of nitrogen purge gas: high when you need it, low to conserve flow
  • 2 NitroWatch® RH Controller
    Monitors internal humidity; activates a high-flow purge when RH climbs above set-point level
  • 3 Door Sensor Switches
    Activate high-flow purge when a door opens to recover RH set point
  • 4 Automatic RB® Valve
    Prevents overpressure; acts as a check valve (one included per chamber)
  • 5 Stand
    Powder-coated or 304 stainless steel; 4” or 12” high; casters available
  • 6 Nitrogen Generator
    Nitrogen generator provides un uninterrupted supply of nitrogen up to 99% pure to eliminate reliance on bulky canisters

Not Shown: Flowmeter - Flowmeter included for manual regulation of flow rate (choose Dual Purge/NitroWatch systems for automated control)

Learn More About Adjust-A-Shelf Desiccators

  • 10-Chamber Adjust-A-Shelf Desiccator Static-Dissipative Adjust-A-Shelf Desiccator
  • Benchtop Adjust-A-Shelf Desiccator Static-Dissipative PVC Adjust-A-Shelf Desiccator
  • 3-Chamber Static-Dissipative PVC Desiccator Three-Chamber SDPVC Desiccator
  • Adjust-A-Shelf Desiccators
  • Desiccator Humidity Control
  • Leveling your Desiccator
  • Amber acrylic single-chamber desiccator cabinet with stainless steel door frame Desiccator; Adjust-a-Shelf, Amber Acrylic, 1 Chamber, 17"W x 18"D x 12"H
  • Static Dissipative PVC Open Desiccator Dry Box Desiccator, Adjust-A-Shelf; SDPVC, Nominal 12"W x 12"D x 12"H
10-Chamber Adjust-A-Shelf Desiccator
Benchtop Adjust-A-Shelf Desiccator
3-Chamber Static-Dissipative PVC Desiccator
Amber acrylic single-chamber desiccator cabinet with stainless steel door frame
Static Dissipative PVC Open Desiccator Dry Box

Features & Benefits

Features and Benefits

ESD Protection

Static Control Solutions in Nitrogen-Purged Desiccator Cabinets

Because the likelihood of ESD (electrostatic discharge) increases in a low humidity environment, Terra strongly urges that you consider these measures as part of your static control program.

Static-Dissipative PVC

Acrylic, commonly used in storage enclosures, is a prolific static generator. Wiping an acrylic desiccator generates surface charges that can discharge onto ESD-sensitive components. Static-dissipative PVC prevents this danger.

This material not only dissipates static charges safely but also eliminates the particle attraction that static charges create. Surfaces stay clean, inside and out, making this material perfect for use in cleanrooms.

Because static-dissipative PVC is transparent and highly durable, it can be used in place of acrylic in nearly any application, desiccators included. It features a surface resistivity of approximately 10^7 ohms per square and is completely noncontaminating—with no measurable outgassing—and it resists a wide range of chemicals.

Note: To protect Static-Dissipative PVC surfaces, desiccators made of this material must include stainless steel shields installed at the bottom of each chamber.

Static-Neutralizing Ionizing Nozzles

By ionizing nitrogen molecules as they pass through the desiccator plenum wall, ionizing nozzles neutralize electrostatic charges on all interior surfaces. They provide practical ESD control for charged nonconductive materials, which cannot dissipate charges to ground. And because they eliminate static attractive forces, they help control contamination: in a statically neutral environment, any airborne particles that enter a desiccator are more likely to remain airborne and to be purged out of the cabinet.

Desiccator Grounding

All Terra desiccators made of static-dissipative PVC feature grounding terminals on a standard basis. The surface resistivity of this material (around 10^7 ohms/square) allows controlled dissipation of static charges from any surface in the cabinet, including shelves. Conductive grounding connections safely direct charges to a grounding terminal (standard on SDPVC cabinets; order separately for acrylic cabinets below).

Conductive Shelves, Shields and Trays

For smaller components that can be stored on shelves, Terra's grounded stainless steel shelving provide a 100% ESD-safe enclosure.

Grounded conductive plates (such as shelves) create a Faraday cage that prevents penetration of static charges. Because these conductive units are removable, they also protect your sensitive components from ESD as you transport them from one location to another.

Static-Dissipative PVC Avoids Surface Charges

Grounded, static-dissipative desiccator cabinets safely discharge surface charges to ground, eliminating the risk of electrostatic discharge and attractive forces that seize particles.

Flowmeter, 1-10 SCFH, 2'' scale

Suitable for total pressures up to 100 psig and temperatures up to 150°F.

Automatic Relief/Bleed Valve

Terra's Automatic Relief/Bleed (RB) Valve opens up at 0.01 PSI, relieving overpressure that could damage desiccators; also works as a check valve to prevent influx of room air.

Static-Dissipative PVC Plating

Terra's SDPVC features bonded dissipative layers that resist abrasion. SDPVC desiccators retain their surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years), protecting your materials against ESD damage. Further, the control of static charges eliminates particle attractions, helping maintain clean surfaces.

Available Stainless Steel Shelves and Trays

Adjustable, non-contaminating shelves and trays slide on stainless steel racks, allowing easy parts access (one perforated shelf included)

Ergonomic LiftLatches

Lifting latch mechanism minimizes stress on wrists and desiccator hinges; non-rotary motion generates no particles inside the storage area (optional locking model shown)

Reinforced Doors with Non-adhesive Gaskets

Stainless steel door frames extend desiccator life; one-piece fused gaskets are non-outgassing, will not creep or sag

Two-Chamber Adjust-A-Shelf Desiccator Cabinet

Available in three chamber sizes, these desiccators include a flowmeter and bleed valve for dry gas purging, reinforced doors with non-adhesive gaskets, stainless steel wire racks and shelf, perforated plenum chamber for uniform gas distribution.

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.
  • Humidity and Temperature Data Logger
    Provides a convenient record of storage conditions inside a Desiccator chamber-adjustable logging interval (hours to months), USB port for easy data download in several formats.
  • 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.
  • 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.
  • Desiccator Ionizing Module
    Ionizing modules are available for desiccators, glove boxes and other enclosures to ensure static-safe storage and processing (shown: ionizing unit on 2-chamber desiccator)
  • Small Powder-Coated Steel Desiccator Stand, 4"H
    Small 4"H powder-coated steel desiccator stand adjusts to fit cabinet snugly; optional casters simplify positioning and cleaning. Also available in stainless steel and 12" height.

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Manuals & Resources

Manuals & Resources

Desiccator Dual Purge System

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 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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