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Ruggedized Pass-Through™ Chambers

Ruggedized Pass-Through

2.5"-thick doors
and heavy-duty
construction for reliable operation under heavy use (No. 2640-67 shown)


  Ruggedized Pass-Through
  • The ideal chamber for heavy use (and abuse!) applications – a nearly indestructible pass-through!
  • Prevents damage when operators apply excessive force to an interlocked door
  • All-stainless steel construction, with double-wall doors and heavy-duty hardware, prevents flexing and misalignment
  • Recessed pull-to-open latch withstands up to 50 lbs. of force without damaging the catch, interlock, or door frame
  • Includes fire-rated wired-glass viewing windows
  • Spring-action, self-closing doors simplify operation, minimize the chance of contamination

Terra’s Ruggedized Pass-Through™ Chambers stand up to high-use environments where other pass-through chambers fail. Their reinforced, heavy-duty design minimizes maintenance and prevents failure that often leads to costly cleanroom shutdowns.

Enhanced Durability and Reliability
Unreinforced pass-throughs are prone to flexing and bowing under heavy use or when excessive force is applied to a door latch, a common occurrence when users encounter an interlocked door. Once a pass-through chamber flexes, door latches and interlock mechanisms can become misaligned, leading to hardware damage, interlock failure, and cleanroom contamination.

The Ruggedized Pass-Through’s double-wall, 2.5" thick doors and all-stainless steel construction eliminate these problems by preventing door flex or latch misalignment. The chamber retains shape and alignment even when force exceeding 50 pounds is applied to the recessed pull latch.

Dual-side, 0.25"-thick wired safety glass viewing windows are UL fire-rated and provide clear visibility of chamber contents and the opposing door. The 304 stainless steel self-closing spring hinges ensure reliable, hands-free door closure.

Architects & Builders: Click resource icons
SPEC logo BIM logo
Don't risk operational delays or cleanroom shutdown because of a damaged door! Terra's pass-through chambers last indefinitely, much longer than our standard product revision cycle. Pass-Through doors, however, are subject to damage, and ordering a legacy replacement can be costly and disrupt cleanroom operation. To avoid these problems, order replacements at the time you purchase the pass-through chamber; simply add "-RH" (for right-side hinge) or "-LH" (for left-side hinge) to the part number of the chamber.
Ruggedized Pass-Throughs™*
For electropolished models, add “-2” to the part number and 20% to the price 304 Stainless Steel 316 Stainless Steel
Chamber Dimensions
W" x D" x H"
Inside Clearance Dimensions
W" x D" x H"
Viewing Window
W" x D"
Cat. # Price Cat. # Price
12 x 12 x 12
(305 x 305 x 305)
9.38 x 11.88 x 9.5
(238 x 302 x 241)
4.66 x 8
(118 x 203)
2640-65 Price 2640-75 Price
18 x 18 x 24
(457 x 457 x 610)
15.38 x 17.88 x 21.5
(391 x 454 x 546)
7 x 16
(178 x 406)
2640-66 Price 2640-76 Price
24 x 24 x 24
(610 x 610 x 610)
21.38 x 23.88 x 21.5
(543 x 606 x 546)
9.3 x 16
(236 x 406)
2640-67 Price 2640-77 Price
24 x 24 x 48
(610 x 610 x 1219)
21.38 x 23.88 x 45.5
(543 x 606 x 1155)
9.3 x 32
(236 x 812)
2640-68 Price 2640-78 Price
36 x 36 x 36
(914 x 914 x 914)
33.38 x 35.88 x 33.5
(848 x 911 x 851)
14 x 24
(356 x 610)
2640-69 Price 2640-79 Price
36 x 36 x 48
(914 x 914 x 1219)
33.38 x 35.88 x 45.5
(848 x 911 x 1155)
14 x 24
(356 x 610)
2640-70 Price 2640-80 Price
* Add 0.5" (13mm) to the chamber W x H dimensions for installation cut-out.


Access Clearances
Width = W (nominal) – 1.88"
Depth = D (nominal)* – 0.12"
Height = H (nominal) – 1.25"

Wall Cut-Out = W (nominal) + 0.5" x H (nominal) + 0.5"


Standard Door Configuration

Need Terra to do your installation?
Call to discuss your facility and schedule.

File Type File Name Publication Date
Video Cleanroom Pass-Through Features and Selection Guide
Video introduction of pass-through designs, construction and accessories for Terra's family of cleanroom pass-through chambers. Discover how these chambers increase efficiency and reduce contamination with between-room transfer of samples and supplies.
Video Cleanroom Pass-Through Operational Benefits
Learn about the twelve ways Terra cleanroom pass-through chambers can help overcome your operational challenges such as maintaining cleanliness, reducing cost, and transferring over-sized items into the controlled environment.
Tech Resource (DOC) Cleanroom Pass-Through Chambers: Specifications
Features, designs and performance specifications useful for architects and general contractors.
Manual (PDF) Cleanroom Pass-Through: Doc. # 1800-07
Manual (PDF) Easy Installation of Fire-Rated and Ruggedized Pass-Throughs
Fire-Rated and Ruggedized wall-mount pass-throughs can be installed and ready for operation in a few minutes once the wall cut-out is prepared.
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