Magnesium oxide products for hot runner sleeve heaters
Core specifications(OD*ID*Length )
Φ5.3X1.6X25
Φ7.0X2.4X40
Φ9.0X3.0X50
Φ11.0X3.5X40
Φ15.0X4.5X40
Φ18.0X5.0X50
Φ13.0X4.5X40
Φ20X6X50
Technical Parameters
|
Test Item |
Technical Index |
|
Magnesium Oxide (MgO) |
≥97% |
|
Silicon Dioxide (SiO₂) |
＜3% |
|
Aluminum Oxide (Al₂O₃) |
＜0.3% |
|
Calcium Oxide (CaO) |
＜1.1% |
|
Iron Oxide (Fe₂O₃) |
＜0.1% |
Product Physical Performance
|
Performance Index |
Technical Requirement |
|
Product Density |
＞2.3g/cm³ |
|
Cold Insulation Resistance |
≥500MΩ |
|
Voltage Withstand Performance |
2500V/Min No Breakdown, No Flashover |
|
Flatness/Perpendicularity |
Compliant with GB4069-83 |
Dimensional Tolerance
|
Specification Range |
Tolerance Standard |
|
＜3mm |
+0.25mm |
|
3-6mm |
+0.3mm |
|
＜3mm |
-0.25mm |
|
18-30mm |
±1.65mm |
Customized Size Specifications
Supporting full-size customization, the aspect ratio, wall thickness, and number of holes can be personalized according to the customer's needs for electric heating elements. The minimum diameter is 1mm and the minimum wall thickness is 0.25mm, meeting the requirements of special scenarios such as single end/double end electric heating tubes, hot runner heaters, and fire-resistant and explosion-proof cables.
