Ideal Vacuum Cube 12 x 12 Vacuum Chamber Blank Plate No Ports with Internal Optical Breadboard. This is an Ideal Vacuum Cube 12 x 12 inch blank plate without ports. The plate is machined from 6061-T6 aluminum and powder coated blue. It has an internal optical breadboard for mounting test items or fixtures. Blank plates are the least expensive Cube plates and are used for the bottom of Cubes or any other Cube sides where ports are not needed. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Blank plate without ports Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One KF-40 (NW-40) Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one centered KF-40 bulkhead port. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-40 centering ring (P101244) and bulkhead clamp (P108103 or P104600) Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One KF-40 (NW-40) bulkhead port (uses KF-40 bulkhead clam and centering ring) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One KF-50 (NW-50) Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one centered KF-50 bulkhead port. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-50 centering ring (P101245) and bulkhead clamp (P108104 or P104601). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One KF-50 (NW-50) bulkhead port (uses KF-50 bulkhead clam and centering ring) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With Four KF-16 (NW-16) Ports. This is an Ideal Vacuum Cube 12 x 12 inch plate with four KF-16 bulkhead ports. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-16 centering ring (P101242) and bulkhead clamp (P108101 or P104598). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Quad KF-16 (NW-16) bulkhead ports (uses KF-16 bulkhead clamps and centering rings) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With Four KF-25 (NW-25) Ports. This is an Ideal Vacuum Cube 12 x 12 inch plate with four KF-25 bulkhead ports. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-25 centering ring (P101243) and bulkhead clamp (P108102 or P104599). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Quad KF-25 (NW-25) bulkhead ports (uses KF-25 bulkhead clamps and centering rings) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With Four KF-50 (NW-50) Ports. This is an Ideal Vacuum Cube 12 x 12 inch plate with four KF-50 bulkhead ports. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-50 centering ring (P101245) and bulkhead clamp (P108104 or P104601) Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Quad KF-50 (NW-50) bulkhead ports (uses KF-50 bulkhead clamps and centering rings) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate with One ISO-F 63 and Four KF-25 (NW-25) Ports. This is an Ideal Vacuum Cube 12 x 12 inch plate with one centered ISO-F 63 port and four KF-25 bulkhead ports in the plate’s corners. The plate is machined from 6061-T6 aluminum and powder coated blue. The ISO-F port has 5/16-18 tapped holes for mounting a turbo pump, or ISO flanged tubing. To mount an ISO-K flanged turbo pump or tubing, single claw clamps (P104063) and a centering ring with O-ring seal are needed. (P101766). SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use a standard KF-25 centering ring (P101243) and bulkhead clamp (P108102 or P104599). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One ISO-F 63 and four KF-25 (NW-25) bulkhead ports (uses KF-25 bulkhead clamps and centering rings) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate with One KF-50 (NW-50), Two KF-40 (NW-40), Two KF-25 (NW-25), and Two KF-16 (NW-16) Ports. This is an Ideal Vacuum Cube 12 x 12 inch plate with seven KF bulkhead ports, including one KF-50, two KF-40, two KF-25, and two KF-16 ports. The plate is machined from 6061-T6 aluminum and powder coated blue. SInce a bulkhead KF fitting does not have a flange, this type of connection cannot use a standard KF clamp. Bulkhead KF clamps are secured to the plate with screws. To attach a KF flanged component to the KF bulkhead fitting, use standard centering rings and bulkhead clamps. KF-16 uses centering ring (P101242) and bulkhead clamp (P104598 or P108101) KF-25 uses centering ring (P101243) and bulkhead clamp (P108102 or P104599) KF-40 uses centering ring (P101244) and bulkhead clamp (P108103 or P104600) KF-50 uses centering ring (P101245) and bulkhead clamp (P108104 or P104601) Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat (1 ea) KF-50, (2 ea) KF-40, (2 ea) KF-25, and (2 ea) KF-16 bulkhead ports (uses bulkhead clamps and centering rings) Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One ISO-F 63 Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one ISO-F 63 port. The plate is machined from 6061-T6 aluminum and powder coated blue. The ISO-F port has 5/16-18 tapped holes for mounting a turbo pump, or ISO flanged tubing. To mount an ISO-K flanged turbo pump or tubing, single claw clamps (P104063) and a centering ring with O-ring seal are needed. (P101766). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One ISO-F 63 port with 5/16-18 tapped mounting holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One ISO-F 100 Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one ISO-F 100 port. The plate is machined from 6061-T6 aluminum and powder coated blue. The ISO-F port has 5/16-18 tapped holes for mounting a turbo pump, or ISO flanged tubing. To mount an ISO-K flanged turbo pump or tubing, single claw clamps (P104063) and a centering ring with O-ring seal are needed. (P101768). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One ISO-F 100 port with 5/16-18 tapped mounting holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One ISO-F 160 Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one ISO-F 160 port. The plate is machined from 6061-T6 aluminum and powder coated blue. The ISO-F port has 5/16-18 tapped holes for mounting a turbo pump, or ISO flanged tubing. To mount an ISO-K flanged turbo pump or tubing, single claw clamps (P104065) and a centering ring with O-ring seal are needed. (P101769). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One ISO-F 160 port with 5/16-18 tapped mounting holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One ISO-F 200 Port. This is an Ideal Vacuum Cube 12 x 12 inch plate with one ISO-F 200 port. The plate is machined from 6061-T6 aluminum and powder coated blue. The ISO-F port has 5/16-18 tapped holes for mounting a turbo pump, or ISO flanged tubing. To mount an ISO-K flanged turbo pump or tubing, single claw clamps (P104065) and a centering ring with O-ring seal are needed. (P101770). Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat One ISO-F 200 port with 5/16-18 tapped mounting holes No internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One Conflat CF 2.75 in. Port. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 2.75" centered Conflat port. The plate is machined from 6061-T6 aluminum and powder coated blue. This Conflat CF ported plate has 1/4-28 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The plate’s Conflat port requires six (6) 1/4-28 x 7/8" long, silver-plated, 12 point bolts (P104404). The CF port is not compatible with metal gaskets. Use only Viton seals (P104341). Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 2.75" port with 1/4-28 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One Conflat CF 4.5 in. Port. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 4.5" centered Conflat port. The plate is machined from 6061-T6 aluminum and powder coated blue. This Conflat CF ported plate has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. This plate’s Conflat port requires eight (8) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012250). The CF port is not compatible with metal gaskets. Use only Viton seals (P104343). Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 4.5" port with 5/16-24 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One Conflat CF 6.0 in. Port. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 6.0" centered Conflat port. The plate is machined from 6061-T6 aluminum and powder coated blue. This Conflat CF ported plate has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The plate’s Conflat port requires eight (8) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012250). The CF port is not compatible with metal gaskets. Use only Viton seals (P104345). Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 6.0" port with 5/16-24 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One Conflat CF 8.0 in. Port. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 8.0" centered Conflat port. The plate is machined from 6061-T6 aluminum and powder coated blue. This Conflat CF ported plate has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The plate’s Conflat port requires twenty (20) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012252). The CF port is not compatible with metal gaskets. Use only Viton seals (P104347). Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 8.0" port with 5/16-24 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate With One Conflat CF 10.0 in. Port. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 10.0" centered Conflat port. The plate is machined from 6061-T6 aluminum and powder coated blue. This Conflat CF ported plate has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The plate’s Conflat port requires twenty-four (24) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012252). The CF port is not compatible with metal gaskets. Use only Viton seals (P104347). Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 10.0" port with 5/16-24 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate with One CF 4.5 in. Port and Four CF 2.75 in. Ports. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one CF 4.5" and four CF 2.75" Conflat ports, one at each corner of the plate. The plate is machined from 6061-T6 aluminum and powder coated blue. The plate’s 4.5" CF port has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The 4.5" CF port requires eight (8) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012250), and uses a Viton seal (P104342). Each of the two CF 2.75" ports have 1/4-28 UNF tapped mounting holes and each port requires six (6) 1/4-28 x 7/8" long, silver-plated, 12 point bolts (P104404) and use Viton seals (P104341). The CF ports are not compatible with metal gaskets. Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 4.5" port with 5/16-24 UNF tapped holes Quad CF 2.75" ports on plate corners with 1/4-28 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube 12 x 12 Vacuum Chamber Plate with One CF 4.5 in. Port and Four CF 2.75 in. Ports Centered on Plate Sides. NOT COMPATIBLE WITH COPPER GASKETS. USE ONLY WITH VITON CF GASKETS! This is an Ideal Vacuum Cube 12 x 12 inch plate with one centered CF 4.5" and four CF 2.75" Conflat ports, one centered at each plate side. The plate is machined from 6061-T6 aluminum and powder coated blue. The plate’s 4.5" CF port has 5/16-24 UNF tapped holes for mounting a turbo pump or CF flanged tubing. The 4.5" CF port requires eight (8) 5/16-24 x 1.0" long, silver-plated, 12 point bolts (P1012250), and uses a Viton seal (P104342). Each of the two CF 2.75" ports have 1/4-28 UNF tapped mounting holes and each port requires six (6) 1/4-28 x 7/8" long, silver-plated, 12 point bolts (P104404) and use Viton seals (P104341). The CF ports are not compatible with metal gaskets. Cube baseline vacuum is 1 x 10-7 Torr. Features: 12 x 12 plate 6061-T6 aluminum Blue powdercoat Single CF 4.5" port with 5/16-24 UNF tapped holes Quad CF 2.75" ports, centered on plate sides with 1/4-28 UNF tapped holes Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

\Ideal Vacuum Cube 12 x 12 TVAC Thermal Vacuum Chamber Heater Plate for up to 140 Degrees C. This Ideal Vacuum Cube 12 x 12 inch heater plate will safely provide up to 140°C of uniformly distributed heat to the vacuum side of the plate surface, through a 120VAC 810W heating element. This thermal vacuum plate expands the capabilities of the Ideal Vacuum Cube whereby the Cube can be used as a Thermal Vacuum Chamber (TVAC). Applications include thermal stability testing, surface coating and implantation, and damage testing under thermal load. Thermal Vacuum Chambers are often used to replicate or simulate the extreme conditions of outer space and are frequently employed in the testing of spacecraft and aerospace parts or components under a simulated space environment, and control outgassing for a giving process. Please note that the maximum allowable temperature using Viton O-rings is 150°C. This heater plate has an integrated Type-K thermocouple, and works directly with our single zone PID Plug & Play Heater Control System, which is designed to accurately measure and control the temperature of our Cube heater plates. When a single Cube heater plate is used, and once the system has reached thermal equilibrium, the rest of the chamber will be approximately 10°C less than the heated plate itself. Multiple heater plates may be used (up to the heater control system’s maximum power load) to help eliminate this temperature differential. These Vacuum Cube heater plates are machined from 6061-T6 aluminum and powder coated red. The vacuum chamber side (back) of these heater plates have an optical breadboard for fixtures and test components. Temperature gradients due to conductive losses through the heater plate edges are kept to a minimum with integrated, machined stand-offs that minimize the contact surface between the plate and the Vacuum Cube frame. An aluminum anodized shield on the air side of the heater plate helps control convective losses due to ambient conditions (and helps protect users from direct contact with the heated plate). As the plots below demonstrate, ramp-up time and maximum plate temperature is dependent upon the heater control system, number of heater plates, ambient operating conditions, and whether the vacuum cube is insulated. Features: 12 x 12 plate 6061-T6 aluminum Red powdercoat Heats to 140°C, 120VAC, 810W Anodized shield helps control convective losses and protect users from direct heater contact Internal optical breadboard Mounts in any orientation Works with PID heater control system P107361 Directly mounts to frame size: 12 x 12 x 12 6x12x12 (on 12 x 12 side) 24 x 24 x 24

Ideal Vacuum Cube, 12 x 12 inch Non-Thermally Isolated Chamber Plate For Circulating Hot or Cold Fluids. This is a non-thermally isolated Ideal Vacuum Cube 12 x 12 inch TVAC plate with 3/8” OD fluid tubes. This plate allows the vacuum side of the plate to be thermally controlled by circulating hot or cold fluids through its stainless steel tubes and internal cavity. The operating range of this plate is 150°C to -26°C (302°F to -15°F). This thermal vacuum Cube plate allows the Ideal Vacuum Cube to be used as a thermal vacuum or thermal shock vacuum chamber. It can also function as a chilled trap for chemical and high boiling point liquids. Multiple TVAC plates may be mounted to a Cube and plumbed together to enhance temperature control capability. Fluid is commonly supplied by a recirculating heater or chiller such as those made by Thermo Scientific, Neslab, and Huber. Insulated supply and return hoses connect the heater/chiller system to the thermal plate with 3/8" OD tube fittings. The plate’s core is made of 304L stainless steel and has an optical breadboard on the vacuum side with a 10.275" x 10.275" temperature-controlled area. Because the thermal cavity is not thermally isolated from the rest of the plate, operating temperatures are limited to that of the plate’s Viton O-ring vacuum seal. The plate is designed to occupy minimal volume within the Cube envelope and may be mounted in any orientation. Features: 12" x 12" plate size Blue powder coated 6061-T6 aluminum plate 3/8” OD stainless steel supply and return tubes Operating temperature range 150°C to -26°C (302°F to -15°F) 10.275" x 10.275" temperature-controlled core Internal optical breadboard Mounts in any orientation Directly mounts to frame size: 12 x 12 x 12 6 x 12 x 12

Ideal Vacuum Cube Viewing Window Plate Assembly for 12x12 Vacuum Chamber 3/8" Tempered Glass. This Ideal Vacuum Cube 12x12 inch vacuum chamber standard, low-iron, tempered glass viewing window plate assembly is designed to fit our 6x12x12 or 12x12x12 modular Cube chambers. The standard tempered glass window viewing plate assembly is a popular Cube option, commonly used for general, direct observation of roughing or high-vacuum chamber processes and can be used to facilitate optical alignments of chamber components, observe degassing of fluids, or used to help teach in-vacuo processes by direct observation. The glass material is 3/8" thick, tempered, low-iron, high-clarity glass. Surface quality and flatness is Q4 per ASTM 1036-06 and 1048-04. The low iron content of the glass results in it having a slight blueish tint. This economical glass is unsuitable for high power laser experiments. We also offer high purity fused silica windows which are ground and polished to optical grade on both sides with a total thickness variation (TTV) of <10µm, a surface finish of S/D 40/20, and a surface roughness of Ra < 1 nm. These windows have appreciably improved transmittance, and a wider useful wavelength range than standard glass. Characteristics include extraordinarily low refractive index variations, low birefringence values, and an ultra-low thermal expansion coefficient. Fused silica is used for transmissive optics where a high laser damage threshold is required. Fused silica is used for optics operating in the deep UV, visible, and the near infrared wavelength range. Our Cube viewing windows employ an innovative, zero metal-to-glass contact design that holds the 3/8” thick window pane to an aluminum mounting plate. This cushioned window mounting system ensures operator safety and is less prone to leakage than other viewport window configurations, even at high vacuum pressures. Ideal Vacuum Cube windows are delivered fully assembled and use Viton O-rings and Teflon spacers. Bakeout temperatures to 150 °C are permissible. The viewing window plate assembly is interchangeable with other Cube plates and can be added to an Ideal Vacuum Cube system anytime. The viewing window can be implemented as a fixed side, or a door (with our optional hinge assembly and hardware kit, P106868) on the Cube chamber. The viewing window plate assembly, like all our other Cube plates, is built with our patented Taper-Seal technology which incorporates sloped sealing features to help prevent damage to the vacuum sealing surfaces. All Ideal Vacuum Cube plates are CNC milled from a single block of lightweight 6061-T6 Aluminum Alloy. Before it ships, every viewing window plate assembly is visually inspected for window media imperfections, helium leak tested, cleaned and sealed, ensuring that it operates correctly, safely, and is ready for immediate installation upon delivery. NOTE: All viewing windows or viewports are inherently fragile, should be handled carefully, and always inspected before use. Ideal Vacuum viewing windows are designed and rated for VACUUM ONLY and can be susceptible to thermal shock if exposed to rapid temperature changes (>10° C /min). If directing a laser beam through the window, make sure the laser’s wavelength can be reasonably transmitted through the window’s material. Please download and read all the safety warnings in the IVP Cube Viewing Window Assembly Manual.

Ideal Vacuum Cube Viewing Window Plate Assembly for 12x12 Vacuum Chamber 3/8" Fused Silica. This Ideal Vacuum Cube 6x6 inch vacuum chamber fused silica viewing window plate assembly is designed to fit our 6x12x12 or 12x12x12 modular Cube chambers. The fused silica window viewing plate assembly is our premium viewing plate assembly and is selected for experiments where improved optical clarity and extended wavelength transmissivity, beyond the visible is required. Our high purity fused silica windows are ground and polished to optical grade on both sides with a total thickness variation (TTV) of <10µm, a surface finish of S/D 40/20, and a surface roughness of Ra < 1 nm. These windows have appreciably improved transmittance, and a wider useful wavelength range than standard glass. Characteristics include extraordinarily low refractive index variations, low birefringence values, and an ultra-low thermal expansion coefficient. Fused silica is used for transmissive optics where a high laser damage threshold is required. Fused silica is used for optics operating in the deep UV, visible, and the near infrared wavelength range. We also offer Cube window plate assemblies and replacement window panes with standard low-iron tempered glass. Tempered glass is commonly used for general, direct observation of roughing or high-vacuum chamber processes and can be used to facilitate optical alignments of chamber components, observe degassing of fluids, or used to help teach in-vacuo processes by direct observation. The glass material is standard low-iron float glass. Surface quality and flatness is Q4 per ASTM 1036-06 and 1048-04. The low iron content of the glass results in it having a slight blueish tint. This economical glass is unsuitable for laser experiments below visible or beyond near-infrared (NIR) wavelengths. Our Cube viewing windows employ an innovative, zero metal-to-glass contact design that holds the 3/8” thick window pane to an aluminum mounting plate. This cushioned window mounting system ensures operator safety and is less prone to leakage than other viewport window configurations, even at high vacuum pressures. Ideal Vacuum Cube windows are delivered fully assembled and use Viton O-rings and Teflon spacers. Bakeout temperatures to 150 °C are permissible. The viewing window plate assembly is interchangeable with other Cube plates and can be added to an Ideal Vacuum Cube system anytime. The viewing window can be implemented as a fixed side, or a door (with our optional hinge assembly and hardware kit, P106868) on the Cube chamber. The viewing window plate assembly, like all our other Cube plates, is built with our patented Taper-Seal technology which incorporates sloped sealing features to help prevent damage to the vacuum sealing surfaces. All Ideal Vacuum Cube plates are CNC milled from a single block of lightweight 6061-T6 Aluminum Alloy. Before it ships, every viewing window plate assembly is visually inspected for window media imperfections, helium leak tested, cleaned and sealed, ensuring that it operates correctly, safely, and is ready for immediate installation upon delivery. NOTE: All viewing windows or viewports are inherently fragile, should be handled carefully, and always inspected before use. Ideal Vacuum viewing windows are designed and rated for VACUUM ONLY and can be susceptible to thermal shock if exposed to rapid temperature changes (>10° C /min). If directing a laser beam through the window, make sure the laser’s wavelength can be reasonably transmitted through the window’s material. Please download and read all the safety warnings in the IVP Cube Viewing Window Assembly Manual.

Ideal Vacuum Cube Replacement Window for 12x12 Viewing Window Plate, 3/8" Tempered Glass. This is a tempered glass replacement window for the Ideal Vacuum Cube 12x12 Viewing Window AssembIy. Use it to replace a scratched, hazed or discolored glass window. It replaces the tempered glass viewing window pane used on our 6x12x12 or 12x12x12 Cubes. The standard tempered glass window is commonly used for general, direct observation of roughing or high-vacuum chamber processes and can be used to facilitate optical alignments of chamber components, observe degassing of fluids, or used to help teach in-vacuo processes by direct observation. The glass material is 3/8" thick, tempered, low-iron, high-clarity glass. Surface quality and flatness is Q4 per ASTM 1036-06 and 1048-04. The low iron content of the glass results in it having a slight blueish tint. This economical glass is unsuitable for high power laser experiments. We also offer high purity fused silica replacement windows which are ground and polished to optical grade on both sides with a total thickness variation (TTV) of <10µm, a surface finish of S/D 40/20, and a surface roughness of Ra < 1 nm. These windows have appreciably improved transmittance, and a wider useful wavelength range than standard glass. Characteristics include extraordinarily low refractive index variations, low birefringence values, and an ultra-low thermal expansion coefficient. Fused silica is used for transmissive optics where a high laser damage threshold is required. Fused silica is used for optics operating in the deep UV, visible, and the near infrared wavelength range. Newer versions of the viewing window assembly are field upgradeable. Please download the IVP Cube Viewing Window Assembly Manual for instructions. If you have an older viewing window plate assembly (does not have a bare aluminum window frame), we will upgrade the entire viewing window assembly at no charge to our latest version when you order a replacement window. The latest version includes thicker glass and is more leak resistant. When you purchase the new replacement window, just let us know (by phone or email) that you have an older model. We will provide an RMA and return shipping label for you to send us your old viewing window plate assembly. Once we receive the old plate assembly, we will send you a complete, fully tested, updated assembly. Old plate assemblies will not be returned. NOTE: All viewing windows or viewports are inherently fragile, should be handled carefully, and always inspected before use. Ideal Vacuum viewing windows are designed and rated for VACUUM ONLY and can be susceptible to thermal shock if exposed to rapid temperature changes (>10° C /min). If directing a laser beam through the window, make sure the laser’s wavelength can be reasonably transmitted through the window’s material. Please download and read all the safety warnings in the IVP Cube Viewing Window Assembly Manual.

Ideal Vacuum Cube Replacement Window for 12x12 Viewing Window Plate, 3/8" Fused Silica. This is a fused silica replacement window for the Ideal Vacuum Cube 12x12 Viewing Window AssembIy. Use it to replace or upgrade a scratched, hazed or discolored glass window. It replaces the viewing window pane used on our 6x6x12 or 12x12x12 Cubes. Our high purity fused silica replacement windows are ground and polished to optical grade on both sides with a total thickness variation (TTV) of <10µm, a surface finish of S/D 40/20, and a surface roughness of Ra < 1 nm. These windows have appreciably improved transmittance, and a wider useful wavelength range than standard glass. Characteristics include extraordinarily low refractive index variations, low birefringence values, and an ultra-low thermal expansion coefficient. Fused silica is used for transmissive optics where a high laser damage threshold is required. Fused silica is used for optics operating in the deep UV, visible, and the near infrared wavelength range. We also offer standard tempered glass window replacements which are commonly used for general, direct observation of roughing or high-vacuum chamber processes and can be used to facilitate optical alignments of chamber components, observe degassing of fluids, or used to help teach in-vacuo processes by direct observation. The glass material is 3/8" thick, tempered, low-iron, high-clarity glass. Surface quality and flatness is Q4 per ASTM 1036-06 and 1048-04. The low iron content of the glass results in it having a slight blueish tint. This economical glass is unsuitable for high power laser experiments. Newer versions of the viewing window assembly are field upgradeable. Please download the IVP Cube Viewing Window Assembly Manual for instructions. If you have an older viewing window plate assembly (does not have a bare aluminum window frame), we will upgrade the entire viewing window assembly at no charge to our latest version when you order a replacement window. The latest version includes thicker glass and is more leak resistant. When you purchase the new replacement window, just let us know (by phone or email) that you have an older model. We will provide an RMA and return shipping label for you to send us your old viewing window plate assembly. Once we receive the old plate assembly, we will send you a complete, fully tested, updated assembly. Old plate assemblies will not be returned. NOTE: All viewing windows or viewports are inherently fragile, should be handled carefully, and always inspected before use. Ideal Vacuum viewing windows are designed and rated for VACUUM ONLY and can be susceptible to thermal shock if exposed to rapid temperature changes (>10° C /min). If directing a laser beam through the window, make sure the laser’s wavelength can be reasonably transmitted through the window’s material. Please download and read all the safety warnings in the IVP Cube Viewing Window Assembly Manual.