Terra offers chambers in both materials. Which is right for your application?
Acrylic Chambers
Economy: Lower material cost translates into a less expensive chamber.
Full visibility: You can add windows to an aluminum chamber, but nothing beats the 360-degree visibility offered by acrylic.
Aluminum Chambers
Chemical resistance: Aluminum stands up to Spor-Klenz®, alcohol and other sterilants, making it preferable in many bio/pharmaceutical applications. In addition, because many joining and sealing compounds are designed for use with metals, they may degrade acrylic and result in leaks or chamber failure.
Greater machining versatility: Aluminum allows easier addition of feed-throughs to accommodate power and data cords, electrodes and other accessories. These add-ons are more feasible on aluminum than acrylic chambers, which are more prone to cracks that develop into leaks over time. For such applications, an aluminum chamber is a wiser long-term processing solution.
More effective moisture barrier: Acrylic, because it is hygroscopic, allows moisture penetration on a molecular level. Under vacuum, these water molecules are released from the surface and may require several vacuum cycles to remove. These issues don’t occur with aluminum and other metallic moisture barriers.
Greater dimensional versatility: Due to greater strength, aluminum is more appropriate than acrylic for larger chamber sizes.
Economical Acrylic provides excellent clarity and provides high tensile strength it is damaged by frequent contact with alcohol and other common cleaning agents
Polycarbonate
Polycarbonate offers visual clarity, high impact resistance
Ideal for non-frequent/minimal use and long-term storage. Economical, plastic-reinforced doors with PVC foam gasket and basic expansion latches; made of non-shedding materials.
Optional 25-pin connector can be used to monitor conditions within the vacuum chamber.
Coaxial SMA Feedthrough
Double-ended, 50-ohm connectors allow small electronics to operate within the chamber.
Optional Burst Valve
Adjustable bleed valve limits vacuum levels within the chamber, preventing damage to contents.
Tested to Hold Full Vacuum for 72 hours
Terra's acrylic vacuum chambers are tested to hold 29.9"Hg (99.9% vacuum) with no detectable change over a 72 hour duration. Heavy-duty one-inch-thick walls ensure chamber integrity and protect against cracking.
Gauge and Metering Valves
Gauges and valves preinstalled on vacuum chambers allow for careful application, monitoring, backfilling and bleeding of vacuum pressure (shown mounted on acrylic chamber).
Inlaid O-Ring
Precision-routed channel ensures uniform seal along chamber perimeter to provide an ultra-low leak rate.
Optional Glass Top for Sensitive Optics
0.75"-thick tempered-glass top allows optical testing and monitoring that requires high clarity.
Bel-Art Space Saver Vacuum Desiccator
Bel-Art Vacuum desiccators degas liquids quickly and easily in the laboratory or classroom. These shatterproof units also provide dry storage and protection for moisture-sensitive products.
Vacuum Desiccators
Welch Rotary Vane Vacuum Pump
Chamber; Vacuum, Acrylic, 25"W x 10"D x 12.5"H
Aluminum Vacuum Chambers
Unique Designs to Your Specs!
PC-Based Vacuum Control with Data Logging
Terra Universal Vacuum Chamber Overview
The Rotary Vane vacuum pump withstands water vapor in the vacuum pump's inlet vapor stream | 7906-01A displayedWelch Rotary Vane Vacuum PumpThis Rotary Vane vacuum pump offers high water vapor tolerance, light weight and high vacuum performance, making it ideal for many laboratory uses.
Inch-thick acrylic chamber walls support vacuum to 29.9"Hg with full sample visibility | 5235-06B displayedChamber; Vacuum, Acrylic, 25"W x 10"D x 12.5"HInch-thick acrylic chamber walls support vacuum to 20.9"Hg with full sample visibility; all standard models include gauge and metering valves for vacuum application, monitoring, bleeding and process gas backfill.
Allows vacuum testing and processing to 29.9" Hg in a range of chamber sizes; aluminum walls sustain long-term vacuum without warping | 5235-30 displayedAluminum Vacuum ChambersAllows vacuum testing and processing to 29.9" Hg in a range of chamber sizes; aluminum walls sustain long-term vacuum without warping.
High-capacity vacuum chamber includes piping, fittings and solenoid valveUnique Designs to Your Specs!Large capacity chambers available to meet special applications; model shown provides ample processing space for degassing large assemblies
eVac connection kit includes solenoid vacuum valve, hosing, clamps, adapters and hardware connection; laptop and chamber not included | 5235-45 displayedPC-Based Vacuum Control with Data LoggingThe eVAC Digital Vacuum Controller provides highly flexible control over vacuum levels by incorporating an electronically activated bleed valve, which adds the capability to reduce the applied vacuum.
Terra Universal Vacuum Chamber OverviewThis video shows how to operate a vacuum chamber and explores available vacuum chambers and accessories Terra Universal offers
Terra's nitrogen-purged desiccator cabinets meet dry storage requirements as low as 1% relative humidity. Standardization simplifies component upgrade, retrofit and replacement. Terra's Smart controllers allow setpoint control and even multiplexed purging for the most critical humidity requirements.
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Desiccators: Features and Design overview
Terra's nitrogen-purged desiccator cabinets meet dry storage requirements as low as 1% relative humidity. Standardization simplifies component upgrade, retrofit and replacement. Terra's Smart controllers allow setpoint control and even multiplexed purging for the most critical humidity requirements.