Electric furnace transformer for Rock wool-35kV

Rock wool electric furnace transformer is purpose-built for continuous high-temperature melting in rock wool (mineral wool) production lines, delivering stable high-current, low-voltage output for melting basalt and diabase raw materials at temperatures exceeding 1500 °C. Equipped with multi-stage voltage regulation, it precisely adapts power output across melting, holding, and fiberizing stages for optimal energy efficiency.

The enhanced oil-immersed cooling system and robust short-circuit withstand design ensure reliable 24/7 operation in high-temperature, high-dust industrial environments. Compact construction simplifies integration into rock wool production line layouts, while full factory routine and type tests guarantee long-term operational safety.

Feature

• Purpose-built for rock wool melting — Optimized for continuous high-temperature melting of basalt and diabase in mineral wool production

• Multi-stage voltage regulation — Flexible voltage adjustment across melting, holding, and fiberizing phases

• High overload capacity — Withstands short-term load fluctuations during furnace start-up and raw material charging

• Enhanced cooling system — Oil-immersed self-cooling or forced air cooling for reliable 24/7 operation

• Compact footprint — Space-efficient design tailored to rock wool production line layouts

• Industrial-grade durability — Robust insulation and sealing for high-temperature, high-dust environments

Technical Parameters

Environmental Conditions

• Ambient temperature: −25 °C to +45 °C

• Altitude: ≤ 1000 m (de-rating required above 1000 m)

• Relative humidity: ≤ 90% (non-condensing)

• Installation: Indoor (with ventilation) or outdoor (weatherproof enclosure)

• Seismic withstand: 0.2 g (horizontal), 0.1 g (vertical) per GB/T 13540