Magnetite iron ore crusher (also known as a double-roll crusher) is perfectly suitable for use as a magnetite crusher, particularly during the medium and fine crushing stages, where it delivers outstanding performance.

Magnetite Iron Ore Crusher

1. Working Principle

The working principle of the double-roll crusher is highly intuitive: two rolls rotate toward each other driven by an electric motor. Material enters the crushing

chamber formed between the rolls from the top, where it is continuously crushed by compressive and shear forces. By adjusting the gap between the rolls

(via a wedge device or shim adjustment), the maximum particle size of the product can be precisely controlled to meet diverse production requirements.

2. Advantages

uperior particle size control with low over-grinding rate:

Slow compression and shearing forces enable more uniform material fragmentation while significantly reducing the production of excessively fine powder.

This is critical for subsequent mineral processing stages, as consistent feed particle size effectively enhances ore recovery rates.

Energy-efficient and high-performance:

Integrating double-roll crushers into grinding systems maximizes the production capacity of grinding equipment. Data indicates this typically boosts overall

system output by 30%-40% while reducing total energy consumption by 20%-30%.

Simple Structure and Easy Maintenance:

Its relatively uncomplicated mechanical design translates to lower failure rates and simplified routine maintenance, including replacement of wear parts like roller liners.

Sensitive Overload Protection:

When non-crushable foreign objects (e.g., iron pieces) enter the crushing chamber, the rollers automatically retract via hydraulic cylinders or springs to widen the gap.

After the foreign object is expelled, the rollers automatically reset, effectively safeguarding the machine’s core components from damage.