A Secondary Impact Crusher is a type of crushing machine used in aggregate production, добыча полезных ископаемых, and recycling to reduce the size of materials after primary crushing. It is designed to handle softer to medium-hard rocks (например, известняк, асфальт, конкретный) and produce a more cubical product compared to primary crushers.

Ключевые особенности:
1. Функция:
- Processes pre-crushed material (from jaw or gyratory crushers) into finer, more uniform sizes.
- Ideal for shaping aggregates and improving particle quality.

2. Принцип работы:
- Utilizes impact force from rotating hammers/blow bars striking the material against breaker plates or aprons.
- Material is crushed by high-speed impact and shear forces.

3. Types of Secondary Impact Crushers:
- Ударные молотки с горизонтальным валом (HSI): Common for softer materials; high reduction ratios.
- Ударные механизмы с вертикальным валом (КАЖДЫЙ): Better for cubical shaping (например, добыча песка).

4. Преимущества:
- Produces well-shaped, uniform end products.
- Higher reduction ratio than cone crushers for certain materials.
- Lower operating costs in some applications compared to compression crushers.

5. Приложения:
- Совокупное производство (дорожная база, конкретный, асфальт).
- Переработка (конкретный, отходы от сноса).
- Горное дело (soft to medium-hard ores).

6. Ограничения:
- Not ideal for very hard or abrasive materials (например, гранит).
- Higher wear on blow bars/hammers than compression crushers.

Comparison with Other Crushers:
- Первичная дробилка (Челюсть/вращения): Handles large raw feed; грубый выход.
- Вторичная ударная дробилка: Refines material; bet

shape/size control.
- Конусная дробилка: Better for hard/abrasive rocks but less cubical output.

Popular Brands/Models:
- NP Series
- CI Series
- Cedarapids IP Series
- Kleemann MR Series

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