BCE Flanged Vacuum Feedthroughs
 Take it all through the wall with BCE epoxy feedthroughs!During the past decade, new epoxy compounds have been developed that rival glass and ceramic in performance. BCE is at the forefront of this development and leverages modern epoxy's unique properties to solve your feedthrough challenges. BCE custom epoxy vacuum feedthroughs offer the best choice in application flexibility, cost, and high performance. Epoxy feedthroughs are the right product for today’s fast moving markets. If you have to pass an electrical, pneumatic, or fiber-optic signal through a vacuum chamber wall, THINK OF BCE! Specifications
Multi-Input Vacuum Feedthrough
DRAWINGSKF/CF16 Flange FeedthroughsKF25 Flange FeedthroughsKF40 Flange FeedthroughsKF50 Flange FeedthroughsCF2.75 Flange FeedthroughsCF4.5 Flange FeedthroughsDN100 Flange FeedthroughsDN200 Flange FeedthroughsMiscellaneous Flange FeedthroughsMulti-Input Vacuum FeedthroughDouble Sided Vacuum SealQUALITYBCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015.  VIDEO |
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Tubular Heaters
 Tubular Heaters & Finned Tubular HeatersUsed mainly in custom heating applications such as dies, drums, cylinders, holding tanks, injection/blow molding machines. They can be formed into almost any shape, welded (or brazed) to any metal surface, and cast.DescriptionU.L. and C-UL Recognized - E177353ApplicationsCylinders, Dies, Drums, Holding Tanks, Injections and Blow Molding Machines, and Plastic Extruders.Features
Construction
Standard Sizes and MaterialsThe sheath materials available are stainless steel, steel, copper, and incoloy. Standard diameters are: .260", .315", .375", .440" and .475". Diameter tolerance is ±.010"
Sheath Materials and Watt DensitiesTo compute wattage: multiply inside diameter X pi X heated length X allowable watts per sq. inch (based on the table below).
QualityBCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. |
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Vacuum Feedthroughs Engineered for Your Application
 THE BCE ADVANTAGE
Threaded FeedthroughThreaded connections engineered for your application. 
Flanged FeedthroughFlanged connections engineered for your application. 
Thermocouple FeedthroughsMeasuring Temperature in a Vacuum? Get BCE Thermocouple Feedthroughs LOW AND HIGH TEMPERATURE VACUUM FEEDTHROUGHSEngineered and manufactured to UL standards by highly skilled technicians, our hermetically sealed assemblies and vacuum feedthroughs serve in military, aerospace, space simulation, Universities and semiconductor applications.
Plug FeedthroughSimply-designed, versatile and robust! VACUUM FEEDTHROUGHS WITH BCE'S EPOXIES AND SEALSPermanently sealed with durable BCE epoxy, hermetic wire feedthroughs, circular plastic, Mil-C, coaxial, waterproof, thermocouple, high current, and high voltage connectors. BCE cable harnesses support many different combinations of hermetic feedthrough connectors on the vacuum and atmospheric sides accommodating multiple conductors. BCE epoxy sealed to eliminate all leaks (stranded wires included), BCE assemblies feature meticulous-machined housings of aluminum, titanium, steel, brass, plastic or low outgassing epoxy. The seals are available with standard or custom bundles composed of wires and cables ranging in size. BCE custom hermetic cable harnesses can withstand a range of operating environments, including vacuum from 1x10-10 cc/sec He.
High Temp 16 Pair Type J T/C FeedthroughHigh temperature, vacuum sensor array used in the Aerospace industry. HIGH TEMPERATURE FEEDTHROUGHSHigh temperature environments require vigorously designed seals for ultra-high vacuum (UHV) and high-temperature atmospheres. BCE incorporates the use of both metalized ceramics and active alloy sealing methods. This offers our customer’s the most suitable design for their applications. With various KF and CF flanges, BCE can build and test your application with certification of 1x10-10 cc/sec He and operating temperatures up to 300°C near the feedthrough seal. The bake-out temperature can be as high as 450°C. RIGHT ANGLE VACUUM FEEDTHROUGH
Vertex Series FeedthroughHigh vacuum - right angle. The Vertex line of feedthroughs was born out of the necessity of making right-angle feedthroughs robust enough to handle the high vacuum requirements, voltage, amperage, pin dimensions, and challenging space constraints. BCE responded with the Vertex feedthrough. LEARN WHAT A VACUUM FEEDTHROUGH IS...Equipment manufacturers and scientific researchers are continually challenged with supplying power, fiber-optic, control, and monitoring cables into (and out of) sealed vacuum vessels. Whether due to space restrictions, special geometries, or number and type of conductors, standard glass-to-metal or ceramic feedthroughs never quite fit the bill. Unfortunately, because of limited options, many designers are forced to compromise and go for an off-the-shelf solution. Read More... QualityBCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. |
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5 Pin Vacuum Feedthroughs
 Need Circular Flange, Pin Contact Feedthroughs? Give BCE a Call!Five pin circular feedthroughs (often called instrumentation feedthroughs) are commonly used for the transmission of low power electrical signals. They are designed for applications where typical Subminiature Type-D connections will not fit, or where there is little space. The circular geometry allows the installation of this feedthrough into very small vacuum flanges. They are often used in instrumentation applications such as semiconductor processing, electron microscopy, and a variety of analyzers. 5 Pin Instrument Feedthroughs by BCEFive Ni-FE alloy, gold plated pin's are sealed and electrically insulated in a stainless steel shell using the latest in ceramic bonding technology. Multiple contact configurations are available. Specifications
DRAWINGSQUALITYBCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. |
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Custom Thermal System Design and Application
HEM Sealed Heater™Maintaining a high flow rate of cold propellants and optimizing flow in space launches. 
Mini Clean Flow HeaterA powerful, compact solution for heating moving liquids and gases. 
Clamp-in Coil HeaterPrecise control and uniformity via custom watt densities and patterns. 
Flanged Gasline HeaterFor electron ionization in the gas chromatography and mass spectrometry industry. 
Capillary Source HeaterAtmospheric pressure chemical ionization (APCI) heaters. 
SMARTFLOW HeaterLiquid heater with fast, highly efficient heat transfer. 
Kapton Etched Foil HeaterFast Responding, low profile, low outgassing. 
Vacuum Thermowell & Heater AssemblySimultaneously Heat and Monitor Wafer Temperatures 
Vacuum Ring HeaterProvides uniform heat in vacuum chambers. 
Submersible HeaterDesigned for immersion in fluids or high humidity. 
Coil Type Immersion HeaterEven heating, coiled immersion heaters with internal sensors and limits. 
Gas Chromatograph HeatersGas Sample and columns heating. 
Nextgen "Heated Cube" for Gas ChromatographCompact heat source for next generation mass spectrometry. THE BCE ADVANTAGE
Belilove's Custom Thermal Heating group offers custom industrial electric heaters, controllers, and sensors. We bring our thermal expertise to many applications, including analytical instrumentation, semiconductor, photovoltaic, medical equipment, plastics processing, foodservice equipment, packaging, aerospace and other industries.
HEM Sealed Heater™Maintaining a high flow rate of cold propellants and optimizing flow in space launches. HEM SEALED HEATER™The BCE Hem Sealed Heater™ incorporates both the cartridge heaters’ wire wound resistive element encased in a metal sheath and the vacuum compatibility of a feedthrough. Furthermore, the BCE proprietary epoxy seal allows the heater to pass strict electrical tests ensuring the purity of the dielectric materials and hence, preventing shorting. The BCE Hem Sealed Heater™ outperforms as heat flows uniformly from inside the cartridge directly to the heated bodies.
Mini Clean Flow HeaterA powerful, compact solution for heating moving liquids and gases. MINI CLEAN FLOW HEATERA very compact, fast responding electric heating element for liquids and gases for all clean, fuel cell, bio-med, laboratory, food, and pharmaceutical applications. Designed for heating of clean gases and liquids with the medium not exposed to chromium flakes or electrically charged resistors. High wattages and various voltages are available. SEMICONDUCTOR HEATERSIndustrial process tools used for memory devices, transistors, crystal silicon, microprocessors, photovoltaic (PV) cells, and thin film PV cells. All these applications required a shrewd knowledge of temperature, BCE continues to innovate and provide customer specific thermal solutions that are critical to next generation equipment and processes. Electric heaters that provide a very high level of temperature uniformity across the semiconductor wafer to ensure consistent quality plus highly repeatable and efficient wafer processing.
Flanged Gasline HeaterFor electron ionization in the gas chromatography and mass spectrometry industry. FLANGED GASLINE HEATERHeaters that are used in the electron ionization in gas chromatography and mass spectrometry to ionize and fragment analyte molecules before mass spectrometric analysis and detection. A typical electron ionization source exposes the analyte, under vacuum to a stream of thermionic electrons produced from a resistively heated-gas weldment assembly. Gas heated up to 450°C. Built-in thermocouple for precise temperature control is incorporated in the gas body assembly.
SMARTFLOW HeaterLiquid heater with fast, highly efficient heat transfer. SMARTFLOW HEATERThe SMARTFLOW liquid heater with its Reservoir Design is for applications where fast heating of liquids is required. All parts exposed to liquid flow are constructed of 304/316SS (other materials available). All units have built-in Type J or K TC with potential of added adapter for outlet flow. Wetted parts constructed of 316 stainless steel with liquid flow passing over an enclosed heated body. All threaded fittings are available such as NPT, SAE, BSP, VCR & more.
Gas Chromatograph HeatersGas Sample and columns heating. GAS CHROMATOGRAPH HEATERSThis specialized category of electric heating element is designed to provide extremely uniform temperature profiles across the length of the GC column. This uniformity accommodates a stable temperature environment for the capture of repeatable and consistent data between runs. Gas chromatograph heaters allow for very precise temperature ramping and set point control to very tight tolerances. This is critical because the slightest fluctuation in column temperature during analysis will have significant effect on analysis outcomes. |
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BCE Threaded Vacuum Feedthroughs
 Take it all through the wall with BCE epoxy feedthroughs!During the past decade, new epoxy compounds have been developed that rival glass and ceramic in performance. BCE is at the forefront of this development and leverages modern epoxy's unique properties to solve your feedthrough challenges. BCE custom epoxy vacuum feedthroughs offer the best choice in application flexibility, cost, and high performance. Epoxy feedthroughs are the right product for today’s fast moving markets. If you have to pass an electrical, pneumatic, or fiber-optic signal through a vacuum chamber wall, THINK OF BCE! Specifications
Multi-Input Vacuum Feedthrough
DRAWINGSQUALITYBCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. VIDEO |
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BCE Engineered Ceramics
Semiconductor | Electronics | Military/Defense | Medical | Aerospace | Other Industries Providing Consulting, Engineering, Design, Prototyping, and Production of Custom Thick Film Heaters, Ceramic Machining and Grinding Services
Materials in Stock
Examples:Custom Ceramic Thick Film Heaters and Ceramic Machining: Below are thumbnails of custom development work BCE provided to customers in high-tech industries. Click on a thumbnail to see a larger view.           |
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Custom Vacuum Feedthroughs by BCE
 Designer, why conform your designs to a vendor spec, when BCE will adapt to yours?Sixty years of high-tech design experience in semiconductor equipment, medical equipment and R&D yields one of BCE's most innovative products. Equipment manufacturers and scientific researchers are continually challenged with supplying power, fiber-optic, control, and monitoring cables into (and out of) sealed vacuum vessels. Whether due to space restrictions, special geometries, or number and type of conductors, standard glass-to-metal or ceramic feedthroughs never quite fit the bill. Unfortunately, because of limited options, many designers are forced to compromise and go for an off-the-shelf solution. You don't have to compromise anymore.Epoxy to the rescue. During the past decade, new epoxy compounds have been developed that rival glass and ceramic in performance. BCE is at the forefront of this development and leverages modern epoxy's unique properties to solve your feedthrough challenges. With modern epoxy feedthroughs, any kind of standard or custom connector is sealed in a completely potted, high-performance, clear epoxy compound. Epoxy seals offer countless design options, and most amazingly, performance equal to or better than glass or ceramic. Better yet, pricing is very competitive and quick turn-around for prototypes and short production runs are not a problem. BCE custom epoxy vacuum feedthroughs offer the best choice in application flexibility, cost, and high performance. Epoxy feedthroughs are the right product for today’s fast moving markets. If you have to pass an electrical, pneumatic, or fiber-optic signal through a vacuum chamber wall, THINK OF BCE! The Advantages of Epoxy Feedthroughs Over Glass and Ceramic
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Glasrope Heaters
 Glasrope Heaters: Single and DoubleThe Hotwatt Single Glasrope Heater has a termination on each end. The nominal diameter is .165" x .032" wall for 120 volts, and .180" x .040" wall for 240 volts. Lengths to 300". Maximum temperature is 900° F. ApplicationsPipes, Tubes, and other similar apparatus where spot or particular locations need to be warmed. Odd shapes such as: Laboratory Beakers, Valves, and Piping, Appliances, Drier Units for Blueprint Machines, Incubators, and Tracers for Pipe Lines. BCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. |
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BCE Specialized Ceramic Metallization
 Refractory Metallization, Brazing, Contract FiringBCE has specialized in ceramic metallization since 1988. Their engineers and team combines for decades of experience in the research and development needs of the semiconductor and other high-tech industries. BCE performs precision machining and grinding services on ceramics and quartz. Materials are processed, measured and cleaned with state-of-the-art equipment by highly trained professionals. All parts are designed and fabricated to the customer’s specifications. We perform the following services on ceramics and quartz materials: Refractory MetallizationHi-Temp Refractory metallization is the only solution for some packaging applications. Tungsten and Moly-Manganese metallizations have higher adhesion to the substrate than Thick-film metallization. This makes it the ideal process for Hermetic packages, Brazed lead frames and packages requiring high operating temperatures. BCE can screen print, spray or hand-paint these metals onto Alumina Oxide or Beryllium Oxide substrates. These patterns can be plated with Gold and Nickel or Gold alone. Once Gold plated, these surfaces are solderable and wire bondable with Aluminum or Gold wire.BrazingTheir batch furnaces are ideal for accurate brazing of small quantities and large. They can braze Kovar, Stainless Steel, Copper and Copper/Tungsten as well as many other metals to metallized ceramic. When the application requires, BCE can step-braze to combine several sub-assemblies into the final product. BCE has experience designing and brazing Pins and Sockets into holes, ring frames, lead frames and heat sinks.Contract FiringBCE's furnace capability allows them to offer contract firing. Their controlled atmosphere batch furnaces can be used for large volume soldering, glass sealing, epoxy curing and Nickel and Gold sintering. Their programmable Cold Wall furnaces operate at temperatures up to 1500° C in a reducing atmosphere. BCE Engineering & Quality AssuranceBCE engineers provide decades of experience in design and development, delivering a wealth of empirical data and experience. BCE welcomes your custom requirement and will design and deliver a part that meets your challenging needs.BCE is recognized for its commitment to quality and excellence by being certified in accordance with ISO 9001:2015. |
BCE's Engineered Ceramics offers custom ceramic heaters and precision ceramic parts. BCE provides years of ceramic expertise in successfully designing and applyng products to many industries, including analytical instrumentation, semiconductor, photovoltaic, medical equipment, plastics processing, foodservice equipment, packaging, aerospace and other industries.
BCE Ceramics is located in the Bay Area in Northern California, the world center for high-tech development. BCE’s continual goal is to surpass customer expectations through a 100% committed and dedicated team. BCE Team members are some of the most experienced engineers and technicians dealing with advanced ceramics, thick film technology, laser processing, and ceramic machining in the world.
Capabilities: