Crusher
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Overview
Crushers replace hand tools and muscle with a machine to break things into smaller things.
Crushers are commonly used in mineral processing and recycling workflows to fracture or compress some given size range of objects down into a smaller range.
The common type in basic mining operations is a jaw crusher, which uses a V shaped funnel with one edge stationary and the other repeatedly moving back and forth.
Crushers differ from mills, in that they are meant as a 'first stage' for larger, harder, and more heterogeneous materials.
Development
- Design considerations - https://www.motioncontroltips.com/helical-gears-what-are-they-and-where-are-they-used/
- Cordless rock crusher - https://www.youtube.com/watch?time_continue=44&v=Ex8A7HNgAqY
Production Rates
- See specs at https://loevensteyn.co.za/products/pew-jaw-crusher.html
- Production rate of 1 ton per kWhr - not bad.
- A Nema 17 motor at 10W of power can crush 250 kg of rock per day if geared down sufficiently enough
(It depends on what hardness of minerals you're crushing, but consider using a NEMA 23 with 80:1 NMRV030)
