What is a primary crusher?

What is a primary crusher?

Types of primary crushers

The most common types of primary crushers:

    Gyratory crusher
  • Jaw crusher
  • Hammer crusher

1. Gyratory crusher

They are good at handling dry to slightly wet materials, but not very suitable for sticky materials.

allows continuous operation and supports full feed without pre-screening or removing fines.

    High capacity: A processing capacity of 2000¨C10000 TPH.
  • Low energy consumption: Large and medium-sized gyratory crushers consume less energy than the same types of jaw crushers.
  • Low maintenance: Even wear distribution reduces liner replacements and maintenance costs.
  • Environmental performance: Fully enclosed design with excellent sealing ensures superior environmental protection.

have a higher initial investment cost due to their complex structure and large size of the outer shell.

2. Jaw crusher

These compression crushers perform better with high moisture and high viscosity materials like clay, with a reduction ratio of 6:1. They operate intermittently and require even feeding from Crusher.

    Mining: Primary crushing of iron ore, copper ore, gold ore, and other metal ores.
  • Construction: Preprocessing of limestone, Crusher, and other construction materials.
  • Chemical and building materials: Initial crushing of gypsum, coal, ceramic raw materials, etc.

    Simple operation: Jaw crushers are easy to operate, even for beginners.
  • Lower cost: Compared to gyratory crushers, they require less investment, saving money.
  • Easy maintenance: Liners are easy to replace, with minimal downtime and a small footprint.

3. Hammer crusher

Crusher are widely used as primary crushers in the aggregate and industrial markets, suitable for materials such as Crusher, limestone, concrete aggregates, bauxite, construction waste, cement clinker, slag, and coke.

    Wide application: Suitable for both dry and wet crushing, for materials with up to 15% moisture.
  • One-time forming: Eliminates the need for primary and secondary crushing, reducing costs by approximately 40%.
  • Large feed opening: Handles feed sizes up to 1000 mm, making it ideal for coarse crushing.
  • Non-clogging: Designed to ensure smooth flow of high moisture and clay materials, preventing buildup.

How to choose the right primary crusher?

Selection factors Gyratory Crusher Jaw Crusher Hammer Crusher Suitable materials Medium to high hardness ores, not suitable for sticky materials Medium to high hardness ores, can handle high moisture and high viscosity Medium hardness brittle materials, suitable for both dry and wet crushing Capacity Very high High Moderate Reduction ratio 8:1 6:1 50:1 Durability Long wear part life High wear and tear, fast consumption Long wear part life Cost High Moderate Low