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SML 99.95% Purity Tungsten Crucible for industry
The furnace industry has seen a remarkable growth in the production of custom-made, high temperature vacuum or argon atmosphere furnaces for growing sapphire crystals used in manufacturing of LEDs. These furnaces have unique and demanding hot zone designs for melting alumina in crucibles for precise, highly controlled crystal growth.
The hot zones in sapphire growing furnaces use molybdenum and tungsten products for furnace components and fixtures. These high temperature materials are characterized by their high thermal and electrical conductivity, low coefficient of thermal expansion, and excellent strength and stability at temperatures above 2,000°C.


Tungsten crucible application
Sapphire crystal growth furnace, rare earth melting containers, quartz glass melting, induction furnace heating units, it use as high temperature vessels.
| Volume | Equipments | Diameter | Bottom Diameter | Height | Wall Angle |
| 4 cc crucible | Edwards EB3 | 20.8MM | 11.5MM | 15.5MM | 15° |
| 7 cc crucible | Temescal, Varian | 29.5MM | 22.1MM | 14.2MM | 15° |
| 10 cc crucible | 32.5MM | 22.1MM | 19.1MM | 15° | |
| 15 cc crucible | Temescal,Telemark | 37.6MM | 28.5MM | 17.0MM | 15° |
| 25 cc crucible | Temescal,Telemark | 44.5MM | 32.0MM | 21.1MM | 15° |
| 40 cc crucible | Temescal, Sloan | 50.8MM | 37.9MM | 26.9MM | 15° |
| 75 cc crucible | 63.5MM | 46.5MM | 31.8MM | 15° | |
| 100 cc crucible | 69.9MM | 51.1MM | 35.1MM | 15° |



1. Payment methods
T/T (Telegraphic Transfer), Western Union, MoneyGram or Credit Card…
2. Lead time
Based on order quantity, it ranges from 3 to 20 days to finish production.
3. Shipping
Express: DHL, TNT, UPS, FedEx and Special lines…
Carrier: by air or sea.
They all apply to a very economic cost.
4. Services:
We will respond to your inquires in one hour (holidays as well).
We provide free replacement once the failure is confirmed to be caused by our product quality.
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