Terra Part # 3950-74D
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67173
Desiccator; Adjust-A-Shelf™, Amber Acrylic, 3 Chambers, 24" W x 18" D x 36" H

• Control RH with dry nitrogen gas, flowmeter included, select automatic controller on checkout

• Plenum evenly distributes gas to chambers with one set-point for entire cabinet

• Stainless steel reinforced doors and LiftLatches™ are the strongest, most durable doors available

• Doors include Santoprene® “e”-shape non-outgassing rubber gasket to eliminate leaks

• Heavy-duty lift latches are most durable, ergonomic (no twist) door fastening available

• Cabinet includes:

• SS shelf racks in each chamber

• One perforated SS shelf per cabinet (select additional shelves at checkout)

• Flowmeter for manual control (upgrade to automatic DualPurge™ controller at checkout)

• One release-bleed valve per chamber

• Chrome-plated, non-locking LiftLatches™ (SS and locking latches available at checkout)


• Cabinet has doors on one side; two-sided models are available

• Order replacements door(s) to ensure uninterrupted services should a door be damaged in operation

• A full range of accessories is available at checkout

Chamber Dimensions: 22.125" W x 16.125" D x 11.625" H

Material: Amber Acrylic

Opening Dimensions: 21.875" W x 10.75" H

Number of Chambers: 3

Model: Adjust-A-Shelf™

Design: Benchtop

Chamber Width: 22.125"

Chamber Depth: 16.125"

Chamber Height: 11.625"

Humidity Control: Cabinet Level

Door Design: Leak Tight

Unit of Measure: EA

Marks & Listings: CE, UL, ULC

Weight, Product: 42 lb

Dimensions, Product: 24" W x 18" D x 36" H

Weight, Shipping: 123 lb

Dimensions, Shipping: 29.5" W x 43.5" D x 23.5" H

Package Type: Crate

Buy Accessories
  1. Provides variable gas purge levels to maintain humidity set points | 9500-05 displayed
    IsoDry® Dual Purge™, for Desiccator, 120/240VAC, 50/60Hz Stocked Item is in stock and ready for immediate shipping
    $2,180
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  2. Perforated Stainless Steel Shelf allows unimpeded airflow within the desiccator | 1610-42 displayed
    $183
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  3. Stainless Steel solid desiccator shelf with lip | 1976-05 displayed
    $183
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  4. Acrylic shelves with bow guards, top, support 35 lbs. (16 kg); bowing apparent without bow guards, bottom, with load of 10 lbs | 1976-01 displayed
    $62
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  5. Shelf supports ensure that this plastic chamber holds weight | 2200-21 displayed
    $86
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  6. 304 Stainless steel solid-bottom tray with extra depth for desiccators 21.3" W x 14.5" D x 2.6" H | 1977-04 displayed
    Tray; Non-Perforated, 304 Stainless Steel, 21.3" W x 14.5" D x 2.6" H Stocked Item is in stock and ready for immediate shipping
    $183
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  7. Stainless steel shield, installed on the floor of a plastic desiccator chamber, protects against scratching | 1976-06 displayed
    Shield; Non-Perforated, 304 Stainless Steel, 21"W x 15"D Stocked Item is in stock and ready for immediate shipping
    $183
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  8. Small 4"H powder-coated steel desiccator stand; optional casters simplify positioning and cleaning | 1609-20 displayed
    $454
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  9. Small 12"H powder-coated steel desiccator stand; optional casters simplify positioning and cleaning
    $464
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  10. Small 4"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $480
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  11. Small 12"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $491
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  12. Small Nitrogen generator with compact footprint produces up to 99% pure N2 gas | 2700-12B displayed
    Nitrogen Generator; 20"W x 12"D x 35.5"H, 10 ft³/hr @ 99% purity, 100 psig Stocked Item is in stock and ready for immediate shipping
    $5,806
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  13. Stores 16,382 temperature readings and 16,382 relative humidity measurements. | 9500-10 displayed
    Data Logger; Relative Humidity/Temperature Stocked Item is in stock and ready for immediate shipping
    $240
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  14. Increases security of desiccators equipped with Terra LiftLatch and accommodates most standard padlocks. | 1603-34 displayed
    Locking Bracket; SS, LatchLock, for Side-by-Side Chamber Desiccators Stocked Item is in stock and ready for immediate shipping
    $80
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  15. Small (4") locking latch, catcher included. Grid shows one-inch squares. | 1603-80 displayed
    $85
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  16. Stainless steel LiftLatch. Product details may differ. | 1603-67-2 displayed
    $68
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  17. FasTrak 24-7 Expediting Service
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  18. UL Listing Declaration for Desiccators
    Request Quote
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  19. Qualification Documentation (IQ/OQ) for Terra Universal System
    Request Quote
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  20. Equipment Testing and Certification
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  21. Acrylic flowmeter. Product details may differ | 1600-31 displayed
    $138
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  22. Terra's Automated RB Valve provides safe pressure release and prevents influx of room air | 1600-60B displayed
    Automatic RB® (Relief/Bleed); for all Desiccators, Black Stocked Item is in stock and ready for immediate shipping
    $122
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  23. Perforated Stainless Steel Shelf allows unimpeded airflow within the desiccator | 1610-42 displayed
    $183
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  24. 1504-01-rack-storage-chamber-EPSS | 1504-01 displayed
    Rack, Storage Chamber, 304 SS, 12''L x 7.5''H x 13/16''D Stocked Item is in stock and ready for immediate shipping
    $31
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  25. Small (4") LiftLatch with Catcher | 1603-84 displayed
    LiftLatch; Chrome-Plated, Small Non-Locking Stocked Item is in stock and ready for immediate shipping
    $162
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Learn More About Adjust-A-Shelf Desiccators

  • 10-Chamber Adjust-A-Shelf Desiccator Cabinet Static-Dissipative Adjust-A-Shelf Desiccator Cabinet
  • Benchtop Adjust-A-Shelf Desiccator Cabinet Static-Dissipative PVC Adjust-A-Shelf Desiccator Cabinet
  • 3-Chamber Static-Dissipative PVC Desiccator Cabinet Three-Chamber SDPVC Desiccator Cabinet
  • Adjust-A-Shelf Desiccators
  • Desiccators: Features and Design overview
  • Leveling your Desiccator
  • Static Dissipative PVC Open Desiccator Cabinet Desiccator Cabinet, Adjust-A-Shelf; SDPVC, Nominal 12"W x 12"D x 12"H
  • Stainless steel cleanroom cart with built-in amber acrylic desiccator cabinet Clean, Dry, ESD-Safe Transport Solutions
10-Chamber Adjust-A-Shelf Desiccator Cabinet
Benchtop Adjust-A-Shelf Desiccator Cabinet
3-Chamber Static-Dissipative PVC Desiccator Cabinet
Static Dissipative PVC Open Desiccator Cabinet
Stainless steel cleanroom cart with built-in amber acrylic desiccator cabinet

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
Grounding Terminal

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)

High Caliber Hardware

Don’t be concerned about the quality, durability, and craftsmanship of your latches, ports, glides and hinges. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware.

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

Desiccator Plenum Chamber For Uniform Gas Distribution

Multi-chamber desiccator cabinets include a perforated plenum to minimize back fill, ensure uniform gas distribution to all chambers and increase cabinet strength

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.

Stainless Steel Storage Racks

Stainless steel racks resist chipping and scratching from sliding or removable shelves, won't produce contaminants

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 Cabinet Ionizing Module
    Ionizing modules are available for desiccator cabinets, 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.
  • Clean, Dry, ESD-Safe Transport Solutions
    Configure BioSafe® cleanroom carts with built-in desiccator cabinets for highly sensitive biomedical materials. The nitrogen desiccator cabinet adds an extra layer of protection to provide a dry, inert environment. Amber acrylic filters out UV and blue light.

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * 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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