Terra Part # 5235-06B
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Designed in the USA

• Packaged model includes Vacuum Chamber, metering valves, and vacuum gauges

• Inside Dimensions: 23" W x 8" D x 10.5" H

Maximum Vacuum: 29.9" Hg

• Provides a safe convenient way to transport moisture and particle sensitive materials

• CAUTION: Acrylic is damaged by alcohol and many other cleaning agents (Only use water and mild detergent)

• To restrict vacuum to a level less than 29.9”Hg, select optional Vacuum Safety Relief

Type: Benchtop

Material: Acrylic

Maximum Vacuum: 29.9" Hg

Weight, Product: 50 Lbs

Weight, Shipping: 96 lb

Dimensions, Product: 25"W x 10"D x 12.5"H

Dimensions, Shipping: 30.25" W x 29.25" D x 28.38" H

Package Type: Crate

Unit of Measure: EA

Vacuum Chambers

  • Vacuum Chamber Acrylic Acrylic Vacuum Chamber
  • Acrylic Vacuum Chamber Acrylic Vacuum Chamber
  • Laboratory Acrylic Vacuum Chamber Acrylic Vacuum Chamber
  • Acrylic Cube Vacuum Chamber Acrylic Vacuum Chamber
  • Cylinder Acrylic Vacuum Chamber Acrylic Vacuum Chamber
  • Flat Acrylic Vacuum Chamber Acrylic Vacuum Chamber
  • Chamber; Vacuum, Acrylic, 12"W x 12"D x 10.5"H
  • Chamber; Vacuum, Acrylic, 16"W x 10"D x 11.5"H
  • Acrylic Vacuum Chamber with Gauge and Metering Valves Chamber; Vacuum, Acrylic, 25"W x 10"D x 12.5"H
  • Chamber; Vacuum, Acrylic, 13"W x 13"D x 7.5"H
Vacuum Chamber Acrylic
Acrylic Vacuum Chamber
Laboratory Acrylic Vacuum Chamber
Acrylic Cube Vacuum Chamber
Cylinder Acrylic Vacuum Chamber
Flat Acrylic Vacuum Chamber
Acrylic Vacuum Chamber with Gauge and Metering Valves

Features and Benefits

Tested for Continuous Vacuum

More Information

  • Ideal for degassing small parts and mixed liquids, vacuum encapsulation, and general purpose vacuum experiments
  • Provide a safe, convenient way to transport moisture- and particle-sensitive materials
  • Clear acrylic construction provides full visibility of parts
  • Sturdy construction and inlaid O-ring seal supports vacuum level down to 29.9" Hg (see ordering tables for vacuum capacity of each model)
  • Solvent welding, 304 stainless steel and chrome-plated hardware ensure a completely noncontaminating environment
  • Call to discuss custom sizes and applications, including installation of cable feed-throughs

These economical vacuum chambers provide a safe, reliable means for transporting contamination- and moisture-sensitive parts. They are also ideal for degassing operations, biological tests, material testing and other processes requiring sustained low and intermediate vacuums.

Cleanroom-Compatible Construction

Seven different sizes are available; all support vacuums to 29.9" Hg. All models are fabricated of transparent 1" (25 mm) thick acrylic, 0.52" (13 mm) acrylic on No. 5235-08. They feature chrome-plated latches to ensure a noncontaminating environment.

Terra installs a vacuum gauge and two metering valves to permit flushing of the chamber with purge gas before application of vacuum. Terra also features a full line of vacuum/nitrogen pumps. Recommended pump and accessories.

Note: Due to the inherent permeability of plastic, these chambers will not maintain a stable vacuum level over extended periods. For long-term vacuum maintenance, leave vacuum pump connected and running.

Why so Thick and Heavy?

Although your application may not require vacuum levels to 29.9"Hg, Terra builds its chambers to support this vacuum level due to safety concerns.

Variations in operators and operating protocol may lead to inadvertent spikes in vacuum pressure. Because these chambers are small, a few moments of vacuum operation beyond your target vacuum can subject them to substantially higher stress than you intend. Even a safety release switch is no guarantee that a chamber won't experience high vacuum pressure since these valves are not tamper-proof.

The best way to guarantee the safety of your parts and personnel is to use a chamber designed to sustain high vacuum levels. That's why Terra fabricates these chambers of 1"-thick acrylic.

Vacuum Leak Test, 0-72 hours

Chambers lose vacuum pressure initially due to air released from acrylic walls during first three hours. If vacuum level of 29.9"Hg is restored following this initial drop in vacuum pressure, chambers hold 29.9"Hg with no detectable change in pressure over duration of test.

Aluminum vs. Plastic

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.

Electrode Feedthrough

Optional cord/cable feed-throughs for power cords, sensor cables, data lines and thermocouple connectors.

Powder-Coated Aluminum Vacuum Chamber Walls

One-inch-thick, powder-coated aluminum walls ensure chamber cleanliness and integrity while subject to vacuum up to 29.9”Hg.

Installed Vacuum Gauge and Metering Valves

Gauges and valves preinstalled on vacuum chambers allow vacuum application, monitoring, bleeding and backfilling (shown mounted on aluminum chamber).

Powder-Coated Aluminum Vacuum Chamber Gauge and Metering Valves Inlaid O-Ring

O-ring rests in a precision-routed channel for an optimal seal that prevents leakage.

Viewing Window for Vacuum Chamber

A sealed, 1”-thick acrylic window affords a view of the chamber’s contents.

Multi-pin Feedthrough

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 that limits the vacuum levels within the chamber, preventing damage to contents.

One-Inch Wall Thickness

One-inch-thick acrylic sustains full 29.9" Hg vacuum and ensures the chamber's integrity. Stress from vacuum can damage thinner chambers.

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.

Available Glass Top

0.75"-thick tempered-glass top allows optical testing and monitoring that require high clarity.

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Electrode Feedthrough
    Optional cord/cable feed-throughs for power cords, sensor cables, data lines and thermocouple connectors.
  • Feed-Through, Coaxial, Subminiature-D Multipin CF, 2x25-pin
  • Nitrogen Generator; 18"W x 18"D x 81.25"H, Turnkey System for Beer Dispensing
  • Nitrogen Generator; 20"W x 12"D x 35.5"H
  • Feed-Through, Coaxial, Subminiature, Double-Ended CF, 2-Pin
  • Ionizing Gun: LED Power Indicator
    LED indicates when the Cleanroom Ionizing Blow-Off Gun is discharging ions and emitting clean air or nitrogen; low-voltage power source is intrinscially safe and meets static decay requirements
  • Nitrogen Generator
    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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