Evaporation Coil
Evaporation Coil
Evaporation Coil
Evaporation filament coils formed from tungsten wire. Used as the vacuum evaporation source for aluminum and other metals.
Evaporation filament coils formed from tungsten wire. Used as the vacuum evaporation source for aluminum and other metals.
Evaporation filament coils formed from tungsten wire. Used as the vacuum evaporation source for aluminum and other metals.
Applied parts
Applied parts
Used as the evaporation source in vacuum coaters, the melting crucible in high-temperature furnaces and the vessel in crystal growth equipment. Material and shape are designed around what it will hold and at what temperature.
Used as the evaporation source in vacuum coaters, the melting crucible in high-temperature furnaces and the vessel in crystal growth equipment. Material and shape are designed around what it will hold and at what temperature.
Wire diameter, turn count and length are set by the deposition conditions. Tell us the equipment and the metal to be evaporated and we will confirm and reply.
Wire diameter, turn count and length are set by the deposition conditions. Tell us the equipment and the metal to be evaporated and we will confirm and reply.
KEY FEATURES
Wire diameter and turn count set the evaporation rate
In a coil, resistance is the evaporation rate.
The combination of wire diameter and turn count sets the resistance and how much metal it can hold.
High melting point · low vapor pressure
High Melting Point
Tungsten 3,422 °C. Far above aluminum, so the coil does not melt first.
Wetting control
Wetting Control
Molten aluminum has to spread and wet along the coil for even evaporation. Wire diameter and pitch control it.
Coil forming
Coil Forming
Stress is relieved before winding. The wound form must not spring back, which makes fitting easier.
Melting points by material
Melting point °C. The coil has to be far above the metal being evaporated.
Why wire diameter matters
A thin wire heats fast but breaks sooner; a thick one lasts longer but takes more power.
Consumables
An evaporation coil is a consumable. Wire diameter and turn count are set again in light of the replacement interval.
KEY FEATURES
Wire diameter and turn count set the evaporation rate
In a coil, resistance is the evaporation rate.
Melting points by material
Melting point °C. The coil has to be far above the metal being evaporated.
The combination of wire diameter and turn count sets the resistance and how much metal it can hold.
Tungsten 3,422 °C. Far above aluminum, so the coil does not melt first.
The combination of wire diameter and turn count sets the resistance and how much metal it can hold.
High melting point · low vapor pressure
High Melting Point
Tungsten 3,422 °C. Far above aluminum, so the coil does not melt first.
Wetting control
Wetting Control
Molten aluminum has to spread and wet along the coil for even evaporation. Wire diameter and pitch control it.
Coil forming
Coil Forming
Stress is relieved before winding. The wound form must not spring back, which makes fitting easier.
Melting points by material
Melting point °C. The coil has to be far above the metal being evaporated.
Why wire diameter matters
A thin wire heats fast but breaks sooner; a thick one lasts longer but takes more power.
Consumables
An evaporation coil is a consumable. Wire diameter and turn count are set again in light of the replacement interval.
DESIGN PRECISION
The coil is set to the equipment
In a coil, wire diameter and turn count are what distinguish the product.
In the same coil, changing the wire diameter and turn count changes the resistance and the evaporation rate.
Wire diameter design
Wire diameter is set to the supply power and the target evaporation rate.
Capacity
Turn count and pitch are set to the amount of metal to be evaporated.
Supply form
Length and leads are matched to the equipment's electrode spacing.
We do not pick a specification, we develop it with you. (Give us the equipment's electrode specification and the metal to be evaporated, and we will work out the wire diameter with you.)
DESIGN PRECISION
The coil is set to the equipment
In a coil, wire diameter and turn count are what distinguish the product.
In the same coil, changing the wire diameter and turn count changes the resistance and the evaporation rate.
Wire diameter design
Wire diameter is set to the supply power and the target evaporation rate.
Capacity
Turn count and pitch are set to the amount of metal to be evaporated.
Supply form
Length and leads are matched to the equipment's electrode spacing.
We do not pick a specification, we develop it with you. (Give us the equipment's electrode specification and the metal to be evaporated, and we will work out the wire diameter with you.)
APPLICATIONS
Applications
The fields where evaporation coils are used. Wire diameter and turn count differ by equipment.
APPLICATIONS
Applications
The fields where evaporation coils are used. Wire diameter and turn count differ by equipment.
LEAD TIME
Fabrication and Lead Time
This product is made to your drawing. Here is the process, step by step.
STEP 01
Requirements received
Send us the coil diameter, wire diameter, turn count and evaporation source conditions.
Reply within 1 daySTEP 02
Specification review
We review the wire diameter and pitch and propose a geometry that suits the support load.
2 – 4 daysSTEP 03
Coil forming
Wound to the required diameter and pitch, with the terminal section finished.
By agreement, depending on the production scheduleSTEP 04
Inspection · delivery
Dimensions are verified and the part ships after cleaning. Repeat orders to the same specification skip the review stage.
By agreement, depending on the production scheduleMinimum quantity
From small quantities
Varies with wire diameter and turn count.
Standard lead time
About 2 – 3 weeks
From drawing approval. Special geometries add process stages.
Supplied with it
Test report
Dimensional measurements are sent with the delivery.
LEAD TIME
Fabrication and Lead Time
This product is made to your drawing. Here is the process, step by step.
Requirements received
Send us the coil diameter, wire diameter, turn count and evaporation source conditions.
From small quantities
Varies with wire diameter and turn count.
About 2 – 3 weeks
From drawing approval. Special geometries add process stages.
Test report
Dimensional measurements are sent with the delivery.
STEP 01
Requirements received
Send us the coil diameter, wire diameter, turn count and evaporation source conditions.
Reply within 1 daySTEP 02
Specification review
We review the wire diameter and pitch and propose a geometry that suits the support load.
2 – 4 daysSTEP 03
Coil forming
Wound to the required diameter and pitch, with the terminal section finished.
By agreement, depending on the production scheduleSTEP 04
Inspection · delivery
Dimensions are verified and the part ships after cleaning. Repeat orders to the same specification skip the review stage.
By agreement, depending on the production scheduleMinimum quantity
From small quantities
Varies with wire diameter and turn count.
Standard lead time
About 2 – 3 weeks
From drawing approval. Special geometries add process stages.
Supplied with it
Test report
Dimensional measurements are sent with the delivery.
HANDLING
Handling precautions
These apply to refractory metals in general. Service life depends heavily on how the parts are handled.
01
01
Do not touch the parts with bare hands after unpacking. Oil from fingerprints carbonizes at high temperature and becomes a contaminant.
02
02
The material is weak against impact and bending. Tungsten is brittle at room temperature and can crack if dropped.
03
03
Do not heat above 500°C in air; oxidation accelerates sharply. Always use the parts in a vacuum or an inert atmosphere.
04
04
Avoid rapid heating and cooling. On first use, we recommend pre-heating (aging) at low current.
05
05
Store indoors in a dry place and keep the moisture-barrier packaging intact.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
If your installation or operating conditions are unusual, our engineers will review them in advance. Send a drawing or your process conditions and we will start by selecting the right material with you.
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
Advanced material supply and machining,
a global material leader
From raw material to finished part, the best solution seen from your side.
Weekdays 9:00 AM – 5:30 PM (alternate Fridays until 4:00 PM; closed weekends and public holidays)
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
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KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings
KOREA TUNGSTEN CO.,LTD
KOREA TUNGSTEN CO.,LTD
Refractory metal supply and ultra-precision machining — core materials for semiconductor, display, defense, space, medical & radiation.
INNOMT LLC
INNOMT CO.,LTD
Korea Tungsten's official overseas division
Key industries served
Customer support
© 2026 Korea Tungsten Co., Ltd. All rights reserved. 83 Bideukbawi-gil, Jori-eup, Paju-si, Gyeonggi-do 10949, Korea (364-2 Osan-ri) +82-31-975-1717
© 2026 INNOMT Co., Ltd. All rights reserved. Unit A-1710, IS Biz Tower Hangang 3, 50 Eutteum-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10543, Korea +82-2-6408-4239
Privacy Policy
Terms of Use
Cookie settings