Portable concrete crusher,used mini concrete crusher rentals Concrete Crusher portable concrete crusher. Concrete crusher is is effectively an artificial stone or rock. Its the page will tell you used mini concrete crusher rentals.Welcome to the Micro Machine Hire homepage. We are an independent plant hire company that specialises in mini and micro concrete crushers. Our crushers are usually hired out to landscape gardeners, builders, demolition experts and DIY property developers. You can hire a crusher to recycle concrete, brick, granite, paving, block, stone, tarmac and into useable aggregate such as.