Static Dissipative Acrylic Desiccators

Static Dissipative Acrylic Desiccators

Acrylic 5 Door ESD Desiccator with Stand & Casters

5 Door – Model 2446

TDI’s Static Dissipative Acrylic ESD Desiccators provide the highest quality and durable construction to meet requirements for both cleanroom components, as well as assembly storage applications.  All desiccators utilize 1/4″ acrylic material which is inherently inert and will not out-gas plasticizers that may contaminate desiccator contents.

TDI developed the Nitro-Save® Humidity Control Monitor as an economical, solid-state system that accurately controls relative humidity and significantly reduces nitrogen consumption in our desiccator cabinets up to 90% in many applications.  As an option, the Nitro-Save® system is available on all of TDI’s lab desiccators.

All ESD desiccator cabinets include our unique Ultra Nitro-Flow design with notched compartment walls and floors for a uniform humidity control between all compartments.    The plenum chamber; a pressurized housing at the back of the desiccator, contains nitrogen gas or clean dry air CDA at a positive pressure.  The inner plenum chamber wall is perforated with exit ports into each compartment to allow uniform gas flow throughout.  The back wall of the plenum chamber is removable for easy access during maintenance.

Desiccators include tightly sealed doors and compartments with recessed closed cell neoprene gasket in order to minimize nitrogen consumption for relative humidity control.   Desiccator features include a continuous stainless steel door hinge for maximum door support and spring-loaded latches for air-tight door seals.

Options include heavy-duty stainless steel shelves, plates, and racks.  Larger cabinets are available with heavy-duty painted steel, stainless steel or electropolished stainless steel stands with lockable brakes or leg levelers.

Why Choose a TDI Desiccator?

Static Dissipative Acrylic Desiccator Features:
  • 1/4″ ESD Safe Static Dissipative Acrylic (Non-Out-Gassing)
  • Prevents build-up of static charge and accumulation of harmful contamination.
  • Electrostatic decay in less than 0.05 seconds per federal test standard 101C, method 4046.1
  • Surface resistivity 106-108 Ohms / sq.
  • Stainless steel plates not only provide full conductive grounding, but also protect acrylic from surface abrasion.
  • Grounding wire connects from hinge to hard ground. All racks, shelves, plates, latches, and hinges connect to this common ground.
  • Static dissipative removable back plenum wall.
Choose a Model to Request a Price Quote
ESD
Acrylic
Number
of Doors
Overall
Dimensions
Compartment
Space
Shelf
Space
Total
Cubic Feet
160SD 2 16″W x 16″D x 16″H 14-1/2″W x 13-1/2″D x 7″H 14″W x 13″D 2-3/8
161SD 1 16″W x 16″D x 16″H 14-1/2″W x 13-1/2″D x 15″H 14″W x 13″D 2-3/8
180SD 2 18″W x 18″D x 18″H 16-1/2″W x 15-1/2″D x 8″H 16″W x 15″D 3-3/8
182SD 2 24″W x 18″D x 24″H 22″W x 15-1/2″D x 11″H 21-1/2″W x 14-3/4″D 6
240SD 2 24″W x 24″D x 24″H 22″W x 22″D x 11″H 21-1/2″W x 20″D 8
183SD 3 18″W x 18″D x 36″H 16-1/2″w x 15-1/2″D x 11″H 16″W x 15″D 6-3/4
236SD 3 24″W x 18″D x 36″H 22″W x 15-1/2″D x 11″H 21-1/2″W x 14-3/4″D 9
243SD 3 24″W x 24″D x 36″H 22″W x 22″D x 11″H 21-1/2″W x 20″D 12
162SD 4 16″W x 16″D x 32″H 14-1/2″W x 13-1/2″D x  7″H 14″W x 13″D 4-3/4
248SD 4 24″W x 18″D x 48″H 22″W x 15-1/2″D x 11″H 21-1/2″W x 14-3/4″ 12
2444SD 4 24″W x 24″D x 48″H 22″W x  22″D x 11″H 21-1/2″W x 20″D 16
2446SD 5 24″W x 24″D x 60″H 22″W x 22″D x 11″H 21-1/2″W x 20″D 20
488SD 6 48″W x 18″D x 36″H 22″W x 15-1/2″D x 11″H 21-1/2″W x 14-3/4″ 18
484SD 8 48″W x 24″D x 48″H 22″W x 22″D x 11″H 21-1/2″W x 20″D 32
486SD 10 48″W x 24″D x 60″H 22″W x 22″D x 11″H 21-1/2″W x 20″D 40
4872SD 12 48″W x 24″D x 72″H 22″W x 22″D x 11″H 21-1/2″W x  20″D 48

Standard Desiccator Features:ESD Desiccator with Nitro-Save
  • Heavy Duty Construction
  • Ultra Nitro-Flow with Notched Compartment Walls and Floors
  • Electropolished Stainless Steel Continuous Door Hinge
  • Spring Loaded Door Latches
  • Removable Back Plenum Wall
  • Recessed Closed Cell Neoprene Door Gaskets
  • Heavy Duty Stands
  • 1 Year Structural and Mechanical Warranty
  • Continuous In-Line Nitrogen (N2) Required
Standard Options:
  • #HM40 Nitro-Save® Humidity Control Monitor  Accurately Controls Pre-Set RH% and Reduces Nitrogen Usage
  • Digital Hygrometer (for use in lieu of Nitro-Save®)
  • Plenum Chamber, Flowmeter & Continuous Bleeder Valve to Nitrogen Purge Desiccator
  • Perforated Stainless Steel Shelves
  • Camlocks and ID Pockets
  • Heavy Duty Stands with Levelers or Casters

NEW! Nitro-Save® Humidity Control Monitor

Solid State Sensor for Accurately Controlling Pre-Set RH in ESD Desiccatorsnitro save humidity control monitor
  • Accuracy: ±2% at 3-80%RH
  • Silent Operation
  • High Reliability
  • No Electro Mechanical Switches
  • Solenoid Control Valve & Internal Sensor System
  • Sensor System Activates Solenoid as N2/CDA Flow Required
  • Continuous In Line Nitrogen or Clean Dry Air Required.
  • Must Operate at 80 PSI (min) to 100 PSI (max) for Optimum Performance
  • Reduces Nitrogen Consumption to 90% (20%RH) in Many Applications

Knowing the Difference Between Clear and Static Dissipative Acrylic

Clear Acrylic Desiccators are recommended for non electrostatic discharge (ESD) sensitive storage applications. Often these acrylic desiccators are utilized in cleanroom storage of wafers, reticles, photomasks as well as other contents, that are less susceptible to ESD discharge events. Although acrylic desiccators may attain a highly charged condition, it can be mitigated with the proper precautions. Cleanrooms routinely maintain 45/55% relative humidity control, which provides a layer of moisture on exposed surfaces creating a conductive layer,  thus facilitating the discharge of static electricity to ground. TDI recommends that acrylic cabinets include our grounding feature to accelerate these discharges. (Acrylic Material Data Sheet)

Static Dissipative Acrylic Desiccators (SD) provide complete electrostatic discharge protection for ESD sensitive cleanroom and assembly component storage. The static dissipative acrylic material offers a surface resistivity of 106-108 Ohms/sq. and the desiccators cannot be tribocharged when properly grounded. These static dissipative acrylic desiccators offer stainless steel shelves, racks and plates which are common grounded to the desiccator and wire connected to hard ground. The stainless steel plates are recommended to enhance grounding and protect from abrasion when the desiccator floor is utilized as a shelf.  (Static Dissipative Acrylic Material Data Sheet)


Visit ESDA.org for more information regarding ESD standards and more!