Impact crushers are widely used in the mining, construction, and recycling industries to crush materials like limestone, concrete, asphalt, and demolition debris. They work by using impact force rather than pressure to break down materials. Below are some commonly used impact crushers and key considerations when choosing one:
1. Types of Impact Crushers
– Horizontal Shaft Impactors (HSI) – Use a horizontal rotor with hammers/blow bars to strike material against breaker plates. Ideal for softer materials (limestone, recycled concrete).
– *Examples*:
– Nordberg NP Series (Metso Outotec)
– Terex Cedarapids IP Series
– Sandvik CI Series
– Vertical Shaft Impactors (VSI) – Use a high-speed rotor to throw material against anvils or rock-lined chambers for fine shaping (sand production, cubical aggregates).
– *Examples*:
– Barmac B-Series (Metso Outotec)
– Canica Series (Terex)
– Hybrid Impact Crushers – Combine features of HSI and cone crushers for better efficiency.
2. Key Features to Consider
– Rotor Design: Open or solid rotor for different material hardness.
– Blow Bars: High-chrome or manganese options for wear resistance.
– Adjustable Aprons/Curtains: Control output size by adjusting gap settings.
– Hydraulic Assistance: Helps with maintenance (e.g., opening the crusher).
3. Popular Used Models
– Metso Lokotrack LT1213/LT1313 (Mobile HSI)
– Terex Pegson 4242SR (Track-mounted HSI)
– Sandvik QI341/QI442 (Mobile impactors with advanced automation)
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4. Where to Buy Used Impact Crushers?
– Marketplaces:
– [MachineryTrader](https://www.machinerytrader.com/)
– [Rock & Dirt](https://www.rockanddirt.com/)
– [IronPlanet](https://www.ironplanet.com/)
– [Ebay](https://www.ebay.com/)
– Dealers:
– Crusher Rental & Sales (USA)