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AEROFEED LTD.

Aerofeed Storage Cabinets

AEROFEED VARI-CAB 

AEROFEED VARI-CAB NITROGEN STORAGE CABINETS 
The "VARI-CAB" family of nitrogen storage cabinets is a unique concept in desiccator design, offering users a selection of movable shelves and/or drawers in a single cabinet. An easily adjustable pilaster and clip support system allows users to select initially any combination of drawers and shelves within the cabinet's size limits, and to alter that configuration any time storage requirements change. Shelves and drawers can be added or removed at any time, and can be positioned at any elevation in the cabinet to provide whatever vertical spacing may be required for most efficient utilization of cabinet space. Drawers may be fitted with a variety of partitioning systems to form bins or cubicles for storing small items. Extra shelves or drawers may be ordered at any time. In addition to the choice of shelves and/or drawers, the user may specify any of three levels of static protection, ranging from none to full, depending on how sensitive stored items are to damage from EOS/ESD or EMI fields (see below).

CABINET SHELL  

AEROFEED Nitrogen Cabinet Model VC-12
   VC12 with lower door opened. (click on picture to enlarge).

Cabinet shells are offered in six standard sizes - one, two and three door models, each in a choice of two depths. Construction materials vary, depending on the level of static protection specified (see Table 2 below), but all models feature AEROFEED's time-honoured "bow-proof" double-plate door design, sealing tightly with a single latch. Latches utilize a large T- handle with 180 degree rotation from full open to tight closure and provide for easy field adjustment of door gasket compression. On groundable cabinets latches are connected to the internal grounding system, automatically grounding the operator each time the latch handle is touched.
Each shell is furnished with four pilaster columns, two on each side, allowing adjustment of drawer and shelf elevations in 1/2" increments.

DRAWER ASSEMBLIES   SHELVES ASSEMBLIES  

Drawer assemblies are available with interior depths of 1" or 1-3/4". They are solidly constructed of 1/8" thick anodized aluminium and are furnished, as standard, with solid bottoms. Partially open bottoms are also available with certain optional partition assemblies for storage of such items as waffle packs. Drawer movement is on full-extension ball bearing slides, which fasten to pilasters with snap-in clips. A maximum of four 1" or three 1-3/4" drawers may be installed behind each door.

Shelves are satin anodized aluminium plate, 1/8" thick, contoured to wrap around the four pilaster columns and provide full wall-to-wall storage surfaces. They are inherently static dissipative and will support uniformly distributed loads of 30 pounds or more, with a maximum center deflection of approximately 1/16".
Shelves are satin anodized aluminium plate, 1/8" thick, contoured to wrap around the four pilaster columns and provide full wall-to-wall storage surfaces. They are inherently static dissipative and will support uniformly distributed loads of 30 pounds or more, with a maximum center deflection of approximately 1/16".
Electrical continuity between shelves and ground (in grounded cabinets) is achieved by direct contact between shelf surfaces and the four aluminium clips (furnished with each shelf) which snap into the slotted pilasters described earlier. There are no spring-loaded parts or feeler wires to become bent or damaged, and no wires to connect or disconnect when moving shelves from one elevation to another.
A maximum of four shelves is recommended per door opening to insure that an operator is able to reach between them.

FLOW METER  

All cabinets are furnished, as standard, with a gas inlet fitting (mounted in the centre of the cabinet back) sized to accept 1/4" OD copper or hard plastic tubing. Electrically grounded units are furnished, in addition, with a rear-mounted grounding stud, for connecting the cabinet, by customer's wire, to plant ground. Also, as an OPTION, a regulated Flow Meter can be ordered (see picture).

 

Regulated Flow Control
   Regulated Flow Meter (option). (click on picture to enlarge).

GROUNDING  

All conductive and static dissipative surfaces inside a groundable cabinet are connected to a single point in the cabinet interior, placed in series with a one megohm resistor and then wired to a grounding terminal on the outside back of the cabinet. Grounding requires only a hard wire connection from the terminal to plant ground.

TSD OPTION 

AEROFEED Model VC12
VC12 with closed doors. (click on picture to enlarge).

Vari-Cabs with the TSD option offer the ultimate in control of ESD and electrostatic fields. They are almost identical in appearance and dimensions to other VC cabinets, but are constructed of all static dissipative materials. They are recommended for use in areas where no untreated acrylics are allowed, or when parts to be placed in storage may be damaged by exposure to EMI fields, even though no direct electrostatic discharge takes place. TSD cabinets include the following features not found in other VC cabinets:
bullet All interior surfaces are lined with aluminum (instead of just sides and floor). Cabinet exteriors are covered with static dissipative laminate, not conventional laminate.
bullet Faceplates are made from anodized aluminum plate, 1/8" thick, rather than white opaque acrylic.
bullet Acrylic doors are permanently coated, both inside and out, with a proprietary resin, making them totally static-dissipative while retaining all of their flexibility and transparency.

to "A word about EMI fields"
 TABLE 1: (Dimensions)   VARI-CAB SPECIFICATION 

SERIES VC-10

SERIES VC-20

 MODEL NUMBER:

VC-11

VC-12

VC-13

VC-21

VC-22

VC-23

 

Width:

21-1/8"

21-1/8"

21-1/8" 21-1/8" 21-1/8" 21-1/8"
Height:

12-1/4"

23-1/8"

34"

12-1/4" 23-1/8" 34"
Depth:

14-1/4"

14-1/4"

14-1/4" 28-3/4" 28-3/4" 28-3/4"

NUMBER OF DOORS:

1

2

3 1 2 3

Internal Volume:
(cu ft)

1.6

3.3

4.9

3.4 6.8 10.3

Shelf ODs:

19-1/2" wide x 13-1/2" deep

19-1/2" wide x 28" deep

Drawer ID's:
(Specify)

16-3/4" wide x 12-1/4" x 1" deep
OR
16-3/4" wide x 12-1/4" x 1-3/4" deep

16-3/4" wide x 26-1/4" x 1" deep
OR
16-3/4" wide x 26-1/4" x 1-3/4" deep

NOTES:

Ungrounded ("U"), grounded ("G") and totally static dissipative ("TSD") models all have the same dimensions.
Door openings on all models measure 9-1/2" high by 18-3/8" wide.
 TABLE 2: (Materials)   CONSTRUCTION MATERIALS 

(MODEL NUMBER) SUFFIX

 SUFFIX:

"U"

"G"

"TSD"

CABINET LINING:

All melamine

Aluminum sides and floor, melamine back and ceiling

All aluminum

SEPARATORS:

 Aluminum and/or Conventional polyethylene

Aluminum and/or Static-dissipative polyethylene

Aluminum and/or Static-dissipative polyethylene

CABINET EXTERIOR:

Conventional melamine
.045" thick

Static dissipative
melamine - .045" thick

FACEPLATE:

Opaque white acrylic
1/4"  thick

Anodized aluminum
1/8"  thick

* DOORS:

Conventional   acrylic
2 layers, each 1/4"  thick

Static dissipative acrylic
2 layers, each 1/4"  thick

* NOTES:

Clear doors are standard on all models. Amber doors for UV blocking 
are available on "U" and "G" models only

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Last modified: 2016-08-22