Application: Widely used in research and production of glass, ceramic, refractory, metallurgy, steel-making, crystal, electronic parts, semiconductor material. The model including DM1700 (working temperature 1600℃) and DM1800 (working temperature 1700℃)
                    Feature:
Technical parameter:
| Hot Zone Diameter
 D1  | 
Cooling Zone Diameter
 D2  | 
Hot Zone Length
 Le  | 
Cooling Zone Length
 Lu  | 
Central Distance
 A  | 
| 3mm | 6mm | 80-300mm | 80-500mm | 25mm | 
| 4mm | 9mm | 80-350mm | 80-500mm | 25mm | 
| 6mm | 12mm | 80-800mm | 80-1000mm | 25-60mm | 
| 7mm | 12mm | 80-800mm | 80-1000mm | 25-60mm | 
| 9mm | 18mm | 100-1200mm | 100-2500mm | 40-80mm | 
| 12mm | 24mm | 100-1500mm | 100-1500mm | 40-100mm | 
| Note: 1.Special size is customizable.
 2.Delivery time only need 3 days for normal size  | 
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| Model: DM1700 (working temperature 1600℃) and DM1800(working temperature 1700℃) | ||||
| Please confirm the D1, D2,Le,Lu,A before order. | ||||