Coir curling unit consists of a set of machineries used to produce curled ropes out of coir fibre. Curled ropes are used in coir mattresses, sofas, couches and in automobile and locomotive seats. Hackling machine is used for fine cleaning and separation of fibre. Fibre bales are untied, sprayed with water and fed into the hackling machine. Beating principle is adapted for fibre cleaning and separation.