Calcined Manganese Oxide for Power Transformer Cores
Short Product Description
Calcined manganese oxide is used as a raw material in soft magnetic ferrite systems for power transformer cores. It provides controlled manganese content and stable chemical composition for consistent magnetic performance. This grade supports ferrite processing with low impurity interference.
Technical Specifications
| Parameter | Typical Value |
|---|---|
| MnO Purity | ≥ 90–95% |
| Manganese (Mn) Content | ≥ 60% |
| Particle Size | 80–200 mesh |
| Moisture | ≤ 1.5% |
| Bulk Density | 1.0–1.5 g/cm³ |
| Solubility in 2% Citric Acid | ≥ 85–90% |
| Arsenic (As) | ≤ 5 ppm |
| Lead (Pb) | ≤ 10 ppm |
| Cadmium (Cd) | ≤ 5 ppm |
Key Features
• High manganese concentration ensures stable stoichiometry in ferrite formulations
• Low impurity levels minimize impact on magnetic permeability and core losses
• Controlled particle size distribution improves mixing uniformity in ceramic processing
• Calcined manganese oxide offers consistent phase composition for sintering stability
• Good reactivity supports uniform grain growth during ferrite production
Applications
• Power transformer cores – Used in Mn-Zn ferrite formulations to optimize magnetic permeability and reduce core losses
• Soft magnetic ferrites – Provides manganese source for controlled magnetic properties in high-frequency components
• Inductor core materials – Supports stable inductance and thermal performance in electronic components
• Magnetic ceramic manufacturing – Ensures consistent composition during powder blending and sintering processes
• Electronic material processing – Calcined manganese oxide ensures reliable material input for magnetic-grade ceramics
Problems This Product Solves
• Impurity interference in ferrite materials → low heavy metal content improves magnetic consistency and reduces defects
• Inconsistent manganese content → controlled Mn levels ensure stable ferrite composition
• Poor sintering performance → calcined structure improves reactivity and phase uniformity
• Particle segregation during mixing → uniform particle size enhances blending efficiency
• Magnetic property variability → stable raw material quality supports repeatable core performance
Packaging & Supply
25 kg kraft paper bags with PE inner liner
Palletized export packaging available
Bulk container shipment supported
Samples available for ferrite formulation testing
Customization & Technical Support
Customized particle size distribution for ceramic processing
Adjustable manganese content based on ferrite formulation needs
Bulk supply for magnetic material manufacturers
Technical support for ferrite raw material optimization
FAQ
Q1: What is the role of calcined manganese oxide in transformer cores?
A: It acts as a manganese source in Mn-Zn ferrite systems, influencing permeability and core loss. Stable composition ensures consistent magnetic properties during operation.
Q2: How do impurities affect magnetic core performance?
A: Trace impurities such as Pb or Cd can disrupt crystal structure and increase core losses. Low impurity levels help maintain stable electrical and magnetic characteristics.
Q3: Is this material suitable for high-frequency ferrite applications?
A: Yes, controlled particle size and purity support uniform sintering and stable magnetic response. It is widely used in high-frequency transformer cores and inductors.
Q4: What particle size is recommended for ferrite processing?
A: Typically 80–200 mesh is suitable for uniform mixing and reaction during sintering. Custom particle size ranges can be provided based on processing requirements.
Q5: What are the storage conditions for calcined manganese oxide?
A: Store in a dry, sealed environment to prevent moisture absorption. Proper storage ensures consistent performance in ceramic processing.