Medium Low Temp. MgO ZSM4A
● Features
ZSM4A is medium low temperature MgO powder, mainly used in water and aluminum heating elements with low wattage loading, such as air-condition and washing machine tubular heaters.
● Chemical Analysis
| Composition | MgO | CaO | SiO2 | Al2O3 | Fe2O3 |
| Value (%) | ≥95.0 | ≤2.5 | ≤3.00 | ≤0.5 | ≤0.8 |
*The properties are the typical values and not the guaranteed values.
● Physical Properties
| Flow Rate | Tap Density | Particle Size Distribution |
| 175±15s/100g | 2.25～2.35g/cm3 | 50～325 |
● Particle Size Distribution
| Mesh | +50 | +60 | +80 | +100 | +150 | +200 | +325 | -325 |
| Particle Size (μm) | +355 | +280 | +180 | +154 | +100 | +71 | +46 | -46 |
| Value (%) | 0～3 | 15～25 | 25～37 | 1～7 | 18～23 | 5～15 | 4～12 | 0～3 |
● Electrical Properties
ZSM4A（MgO≥95%）
● Test Conditions
Material: SUS304
Rolling: ɸ10.0mm→ɸ8.2mm
Core rod：Ni80Cr20，Φ0.3mm
Effective Heating Length: 43.0-47.0cm
Cold Insulation Resistance: 28Ω-33Ω
Power on Time：15min
*The properties are the typical values and not the guaranteed values.
● Packaging
25Kg in a woven bag. Special Package is available on requirements.
● Remarks
1. ZSM4A is treated with heavy silicone oil, MgO powder without silicone oil can be provided on requirements.
2. ZSM4A is mainly used in air-conditioner and washing machine heating tubes with wattage loading less than 6W/cm2.
3. Electrical grade MgO powder is non-toxic, but with some dust. It is recommended to wear anti-dust respirators and gloves during operation.
4. Electrical grade MgO powder should be stored in dry places.
