Tungsten Basket Heater 0.060 in 237 W 1800 °C ATOMFAIR®

This tungsten basket heater must be operated in a vacuum environment to prevent oxidation above 300°C. The electrical supply must be capable of delivering 4.02 V at 59 A continuously to avoid underpowering or overheating.

• Environmental Constraint: Operate only in a vacuum chamber to prevent tungsten oxidation and ensure safe high-temperature evaporation.
• Electrical Safety: Verify the power supply matches the 4.02 V, 59 A, 237 W rating to avoid electrical overload or inadequate heating.
• Oxidation Risk: Exposure to air at temperatures above 300°C will cause rapid tungsten oxidation and heater failure.
• Mechanical Integrity: Inspect for cracks or deformation before each use, as mechanical stress during mounting can cause premature failure.
• Storage Requirement: Store in a dry, inert atmosphere to prevent moisture absorption and contamination of the tungsten surface.

This procedure describes safe installation and operation of the tungsten basket heater for vacuum evaporation. Follow these steps to prevent electrical hazards, thermal shock, and oxidation damage.

Required Equipment: Vacuum evaporation chamber, Power supply rated 4.02 V, 59 A, Electrical leads and connectors

1. Inspect the heater
   Inspect the tungsten basket heater for mechanical damage, deformation, or contamination before installation.
2. Mount in chamber
   Mount the heater securely in the vacuum evaporation source holder using the specified 4.5 in L x 7/8 in H x 1/2 in ID geometry.
3. Connect electrical leads
   Connect the electrical leads to a power supply capable of delivering 4.02 V and 59 A with proper polarity.
4. Evacuate chamber
   Evacuate the chamber to the required vacuum level before applying any power to the heater.
5. Apply power gradually
   Apply power gradually while monitoring the current and temperature to avoid thermal shock to the tungsten wire.
6. Cool under vacuum
   Allow the heater to cool completely under vacuum before venting the chamber to prevent oxidation.

A five-coil tungsten basket heater rated to 1800 °C with a single 0.060 in diameter wire and a 4.5 in L x 7/8 in H x 1/2 in ID envelope, specified at 4.02 V, 59 A, and 237 W for vacuum evaporation source heating; it is appropriate only after confirming supply loading and source-holder fit.

Positive

• 1800°C maximum operating temperature: Rated for 1800 °C, the basket supports high-temperature evaporation source heating in vacuum deposition workflows.
• Defined geometry for replacement matching: The 4.5 in L x 7/8 in H x 1/2 in ID dimensions, 0.060 in wire diameter, and 5-coil count provide a concrete reference for confirming source-holder compatibility before installation.

Trade-offs

• Low-voltage, high-current supply required: The heater draws 59 A at 4.02 V (237 W), so the deposition power supply must be capable of delivering high current at low voltage without exceeding the rated loading.
• Fit and compatibility require pre-purchase verification: Buyers must verify the 0.060 in wire diameter, basket geometry, coil count, and package option against their source holder before ordering to avoid replacement mismatches.

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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).