Terra Part # 2635-10B-2-316-CM
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Pass-Through; Smart®, CleanMount CleanSeam, 24" W x 24" D x 24" H ID, Center Wall Mount, 316L Stainless Steel

• Electronic cleanroom passthrough with Smart® Control System provides advanced control and monitoring

• Obstruction free interior, lipless edges, radius corners, continuous welds for strict disinfection

• Quick and easy CleanMount® design is hassle-free and installs in under 3 minutes (see video)

• Hidden electronic interlock allows only one door to open at a time to prevent cross-contamination

• Countless add-on capabilities: automatic doors, access security systems, UV disinfection, and more

• Cleanroom pass throughs reduce foot traffic, improve cleanliness, safety, productivity, and much more.

Chamber Design:

• Designed for sterile, regulated bio-pharmaceutical applications.

• Electronic door interlock allows for unique, custom door swing configurations such as 90 degree corners (L-shape chambers), 3-door designs (T-shape chambers), 4-door designs (X-shape chambers), and more.

• All-316L stainless steel surfaces with enhanced corrosion resistance stand up to harsher cleaning agents and withstand degradation from bleach-based disinfectants.

• Continuous welds with coved radius corners and lip-less edges eliminate hard-to-clean cracks and crevices where contaminants can collect.

• Double-wall construction greatly increases rigidity and durability of the pass through chamber to facilitate installation and prevent warping on larger chambers.

• Center-mount variation allows chamber to be centered in the cleanroom wall.

• Optional dual BioSafe® stainless steel racks easily remove for cleaning or sterilizing and are reversible to allow slide-out motion in either direction.

Quick and Clean Installation:

• Innovative fastening system clamps to a variety of wall thicknesses without penetrating or damaging the finished surrounding wall.

• The mounting frame is covered on both sides for an easy-to-clean finish with no visible fasteners or screws.

• Easy-to-install mounting system also allows the entire passthrough chamber to be seamlessly removed and reinstalled within minutes, without damaging the surrounding wall.

Electronic Automatic Door Interlock:

• Hidden Smart® control panel is mounted outside the transfer chamber (between double-wall) for easy-to-clean obstruction-free chamber interior.

• Electronic interlock with Smart® Control System provides visual and audible door status alerts to prevent door damage that results when users exert excess force on an engaged interlock:

Green light indicates both doors available for use.

Red light and dual-side remote chimes indicate a door is open and interlock engaged.

Door Design:

• Access doors with 316L stainless steel reinforced frames extend passthrough chamber's service life and provide a tight seal.

• Doors include one-piece non-adhesive Santoprene® “e”-shape rubber gasket for tight seal to prevent outside air from leaking in; gaskets is non-outgassing and will not take a set or keep an impression.

• Doors are leak-rated by UL for tight seal to maintain cleanroom pressure gradients.

• Heavy-duty stainless steel lift latches included to minimize scratching, corrosion and contamination resulting over time that can occur with chrome-plated latches.

• Heavy-duty stainless steel detachable hinges allow doors to easily lift off for trouble-free replacement or more thorough cleaning/decontamination.

• Order replacement door(s) to avoid critical operation delays should a door be damaged and require immediate replacement.


• (1) Main power cord, to be hardwired to power supply onsite per local code by a licensed electrician.

• (1) Automatic electronic interlock.

• (2) Plug-in chimes (one for each side of the passthrough).

• Mounting bracket system with cover plates. Standard mounting system accommodates 4”-6” wall thickness. Specify wall thickness at time of order.

Special Door Configuration: Leak-Rated

Material: 316L Stainless Steel

Mounting Position: Center Wall

Inside Width: 24"

Inside Depth: 24"

Inside Height: 24"

Expand System Capabilities: UV Sanitizer, Electronic Pass-Through Upgrade, 90° Corner Placement, LED Lighting, Automatic Door, Intercom, Iris Scanner, Keycard Reader, Fingerprint Scanner, Video Recording, Power Outlet, Load Presence Sensor, Access Control System, Air Speed Sensor, Access Panel, Message Panel, Slide-Up Doors, ULPA Air Shower

Window Material: PVC

Electropolished: Optional

Storage Racks: Optional

HEPA/ULPA Filtration: No

Unit of Measure: EA

Marks & Listings: UL, ULC

Electrical Specifications: 120 V, 50/60 Hz

Weight, Product: 70 lb

Dimensions, Product: 37.5" W x 24" D x 25.6" H

Weight, Shipping: 174 lb

Dimensions, Shipping: 39.25" W x 41" D x 42.6" H

Package Type: Crate

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  1. Racks shown mounted in pass through. Shelf sold separately.  |  1993-40A displayed
    Shelf, BioSafe® Pass-Through, 304 SS, for 24"W x 24"D CleanSeam Isolated Interlock Stocked Item is in stock and ready for immediate shipping
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  2. Motion sensor-activated Automatic Door Operator eliminates the touch-contamination that normally results from using a standard pass-through door  |  2635-60 displayed
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  3. UV-C germicidal lamp kills microbes  |  2635-50 displayed
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  4. Recessed LED Light For Smart Passthrough
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  5. Keycard Reader For Smart Passthrough  |  2635-85 displayed
    Proximity Keycard Reader, for Smart Pass-through Stocked Item is in stock and ready for immediate shipping
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  6. Access Code Panel For Smart Passthrough  |  2635-81 displayed
    Proximity Reader and Keypad, for Smart Pass-through Stocked Item is in stock and ready for immediate shipping
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  7. Fingerprint Reader For Smart Passthrough  |  2635-82 displayed
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  8. Iris Scanner For Smart Passthrough  |  2635-84 displayed
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  10. Small (4") locking latch, catcher included. Grid shows one-inch squares.  |  1603-80 displayed
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  11. Stainless steel LiftLatch. Product details may differ.  |  1603-67-2 displayed
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  12. Stainless Steel Smart Passthrough Air Filter  |  2635-55 displayed
    ULPA Air Shower, for Smart® Passthrough Chambers Stocked Item is in stock and ready for immediate shipping
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  13. Cleanroom Exhaust Air Speed Sensor  |  2635-57 displayed
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  14. Smart Pass-Through Intercom option allows clear through-wall communication - easy to operate by glove personnel  |  2635-89 displayed
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  16. Load Presence Sensor For Smart Passthrough  |  2635-90 displayed
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  17. FasTrak 24-7 Expediting Service
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  18. Qualification Documentation (IQ/OQ) for Terra Universal System
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  19. Electropolish Service
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  20. White Glove Freight Service
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  21. Equipment Testing and Certification
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  22. UL Listing Declaration for Leak-Rated Pass-Throughs
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Smart® CleanMount® Pass-Through Chambers

  • Fire-Rated Passthrough Door Window with Model Fire-Rated Passthrough Chamber with Window
  • Automatic Door with Touchless Sensor Automatic Door with Touchless Sensor
  • this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination Hands-Free, Automatic Pass-Through Door
  • Smart Cleanroom Pass-Through Chamber with Models Smart Pass-Through Chamber, 24"W x 24"D x 24"H
  • Smart Cleanroom Pass-Through with 90 Degree Corner and HEPA Filtration Smart Cleanroom Pass-Through with 90 Degree Corner and HEPA Filtration
  • Smart® Pass-Through Chambers by Terra Universal
Fire-Rated Passthrough Door Window with Model
Automatic Door with Touchless Sensor
this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination
Smart Cleanroom Pass-Through Chamber with Models
Smart Cleanroom Pass-Through with 90 Degree Corner and HEPA Filtration

Features and Benefits

CleanMount Basics

CleanMount Smart Pass-Through Chamber

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.
CleanMount™ Design Allows Servicing or Replacement without Cleanroom Shutdown!
The simplicity of this CleanMount clamping system makes removal of the pass-through chamber just as easy as installation. If the wall cut-out framing is properly sealed prior to installation, the pass-through can be quickly removed and replaced without ever having to shut down the cleanroom. Maintain the positive-pressure differential and protect the cleanroom environment by sealing off the "dirty side" with plastic sheeting prior to removal. Loosen the lag bolt so that the pass-through lifts out of the wall without contaminating the room. Once out, the pass-through can be serviced, modified, or even replaced with an upgraded version to accommodate new applications.
A - Inside of flush-mount bracket on opposing side
B - Bolt guide extending from nut welded to opposing bracket
C - Mounting bolt (one, two or three per side, depending on chamber height) - standard sizes accommodate any wall thicknesses
D - Mounting bracket
E - Bracket cover
F - Standard wall (masonry or drywall)
Finish cut-out framing to minimize contamination exposure during servicing Terra's quick-mount system installs in under five minutes, regardless of wall thickness and without contamination
Access Clearances 
Width = W (nominal) – 1.88”
Depth = D (nominal) – 0.12”
Height = H (nominal) – 1.25”

90° Corner Design

Custom door configurations are no problem. Install Smart pass-throughs in corner walls, with door swings in either direction.

Removable Cart Ramps on Floor-Mount Models

Floor-mount pass-through chambers include dual-side stainless steel cart ramps, sloped on three sides, that are removable for easy cleaning.

Interlock Status Lights

Red light indicates opposing door is open (interlock engaged); green light means door available for use.

Wireless Door Alert

Alarm bell rings when its assigned door is open (two bells per chamber); plugs into a standard wall outlet.

CleanMount™ Quick Install System

Clean-Mount™ clamping design allows pass-through installation flush against a cleanroom wall in a few minutes, without drilling into the finished wall; mounting brackets clamp flush against walls of any thickness.

Smart Biosafe® Pass-Through Electronic Door Interlock

Smart Biosafe® Pass-Throughs include visible/audible door status alerts: red light and chimes indicate opposing door open (interlock engaged); green light means door available for use. Smart add-ons expand capabilties: LED/UV light, access control, air shower, more!

Flush-Mount Design Prevents Dust Accumulation

CleanMount® pass-throughs hug the cleanroom wall, eliminating gaps that collect germs and particle and making them ideal for critical bio/pharmaceutical cleanroom use.

Stainless Steel-Reinforced Removable Pass-Through Door

The stainless steel-reinforced CleanMount® doors lift off for easy replacement or more thorough cleaning/decontamination.

CleanMount® Lipless Chamber Eliminates Clearance Obstructions

Instead of welded seams, the corners of the CleanMount® pass-through interior are coved to eliminate dust and germ traps. The lipless opening presents no clearance obstructions and further simplifies cleaning.

Easy Installation Simplifies Cleanroom Commissioning

Installing conventional passthroughs can be very messy, making it impossible to perform while a cleanroom is operational. Terra’s innovative CleanMount® fastening system allows for clean installation, without drilling or penetrating the cleanroom wall. Framing a CleanMount® passthrough chamber on a finished cut-out eliminates the need for cleanroom shut-down during installation or service.

Highest Standards For Electronic Components

Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. We accomplish this by harnessing high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our will to continuously improve.

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • UV Sanitizing Module
    Provides a timed cycle of 254 nm Ultra-Violet (UV) radiation to neutralize bacteria, viruses and mold spores within line-of-sight of the light fixture.
  • LCD Message Panel
    Displays critical environmental information related to the interior chamber such as temperature and relative humidity (customizable).
  • Intercom System
    Built-in intercom system lets users easily call and communicate between rooms. No more shouting or awkward sign language.
  • Automatic Door
    Hands-free operation of the pass-through door, governed by the electronic interlock; automatically closes based on delay timer.
  • Iris Scanner
    Fully automated iris scanner for secure, hands-free access (includes datalogging and optional secondary keycard reader).
  • Infrared Load Sensor
    Infrared beams detect objects placed inside the transfer chamber; can be used to trigger an audible alert.
  • Video Camera
    Interior HD video camera records continuously or upon door-opening; can also be used for remote monitoring the transfer chamber.
  • ULPA-Filtered Air Shower
    High-velocity, ULPA-filtered air dislodges surface-deposited contaminants and exits the chamber through a filtered exhaust.
  • LED Recessed Light
    Activates when either pass-through door opens; flush with the wall surface, covered by a static-dissipative PVC lens.
  • Support Brackets for Pass-Through Chambers
    Stainless steel support brackets are recommended for pass-throughs deeper than 24". Brackets fasten to the wall and the body of the chamber rests upon the horizontal bar; no fasteners are used on the pass-through itself.
  • Available UV & LED lights
    Lights are recessed with a transparent lens for easy cleaning; UV-C module neutrailizes microbes using a timed disinfection cycle.
  • 304 Stainless Steel Sliding Tray for Cleanroom Pass Through
    Securely hold small parts during transfer with this dual-motion sliding tray in corrosion-resistant 304 stainless steel. Tray attaches to sliding runners inside a pass-through to allow full tray extension in both directions for convenient material handling.

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