Complex sentence: The Malian Peanut/Groundnut Sheller is a simple hand-operated machine, requiring less than US $50 of materials and capable of shelling 50 kg of raw, sun-dried nuts per hour.
Split into simpler sentences: The Malian Peanut/Groundnut Sheller is a simple machine, requiring less than $50 US of materials. It is hand operated and is capable of shelling 50 kilograms of raw, sun-dried nuts per hour.