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Alumina Coated Tungsten Basket Heater, 0.040 in DIA x 0.725 in ID, 4 in L x 0.875 in H x 0.790 in TID, 0.725 in INSIDE DEPTH, 0.040 in DIA WIRE
Product Type: Alumina Coated Tungsten Basket Heater
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, basket geometry matching and configuration confirmation, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This basket heater must be operated within its stated electrical and thermal limits to prevent damage or unsafe failure. Confirm compatibility with the vacuum evaporation system and heating supply before every use.
- Electrical Limit: Do not energize the heater beyond its rated voltage, current, or power loading.
- Thermal Limit: Do not exceed the specified maximum operating temperature during evaporation.
- System Compatibility: Verify the basket geometry and electrical loading match the source holder and heating supply before operation.
Install the basket heater in the vacuum evaporation source and connect it to the heating supply. Confirm fit and electrical loading before energizing.
Required Equipment: Vacuum evaporation system, Heating power supply
- Confirm Fit
Confirm the basket geometry matches the source-holder fit requirements. - Verify Supply
Verify the heating supply rating matches the basket electrical loading. - Install Basket
Install the basket in the vacuum evaporation source holder. - Energize Heater
Energize the heater only after the basket is seated in the source holder.
How does the 0.040 in DIA wire and 0.725 in ID geometry affect evaporation uniformity and source capacity for this alumina coated tungsten basket heater?
The 0.040 in DIA wire provides sufficient structural rigidity and electrical resistance to reach 1475 °C at 13 V and 33 A, while the 0.725 in ID and 0.725 in inside depth define a compact cavity that limits source material volume but promotes uniform heating. For thin-film deposition requiring consistent evaporation rates, this geometry is optimized for small charge masses typical of research-scale evaporation, where the 429 W power rating ensures rapid thermal response without exceeding the basket's mechanical load tolerance.
What power supply and mounting constraints must be verified before using the AF-ACBH4L875H790TID7250400040ID0725V13A33W429P1 in a vacuum evaporation system?
The heater requires a supply capable of delivering 13 V at 33 A continuously, with a total load of 429 W, and the 4 in length and 0.875 in height must fit within the chamber's electrode spacing and clearance. The 0.790 in TID (top inner diameter) and 0.725 in inside depth also dictate the maximum crucible or foil boat size that can be accommodated; verify that the power supply's output matches the voltage and current ratings exactly to avoid under- or over-heating, and confirm that the electrode clamps can secure the 0.040 in DIA wire leads without deformation.
What handling and storage precautions are required for the alumina coating on this tungsten basket heater to maintain its 1475 °C performance?
The alumina coating is brittle and susceptible to cracking if the basket is bent, pinched, or dropped, which would expose the tungsten wire and alter electrical resistance. Store the baskets in their original packaging (5/PKG or 10/PKG) in a dry, low-humidity environment to prevent moisture absorption that could cause thermal shock during rapid heating. When installing, handle by the lead wires only, avoid abrasion on the coated surface, and perform a gradual ramp-up to 1475 °C (e.g., 100 °C/min) to minimize differential expansion stresses between the tungsten core and alumina layer.
This alumina-coated tungsten basket heater is rated for 1475 °C and 429 W (13 V, 33 A), with dimensions 4 in L x 0.875 in H x 0.790 in TID and an inside depth of 0.725 in, specifically designed for vacuum evaporation source heating applications. The 0.040 in diameter wire and precise geometry facilitate replacement matching and power supply integration.
Positive
- High-temperature capability: Maximum temperature of 1475 °C supports demanding evaporation workflows for a wide range of source materials.
- Clear electrical rating: Specified at 13 V, 33 A, and 429 W provides a direct loading reference for matching to the heating power supply.
Trade-offs
- Requires vacuum environment: Intended for vacuum evaporation source heating; operating in air at high temperature risks oxidation of the tungsten and degradation of the alumina coating.
- High current draw: 33 A current requirement necessitates a compatible power supply and appropriately rated wiring, which may add infrastructure cost.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
