 A recently erected steel headgear in the Zambian copper belt town of Chililabombwe at the Konkola number 4 shaft has a total height of 81 metres to the top of the maintenance crane rail, with the centre-line of the head sheaves at 71 metres above the collar, making it the highest steel headgear in Africa.Concrete headframes require less maintenance and are less susceptible to corrosion than steel headframes.There is much less waste of concrete during construction of a concrete headframe than there is of steel in construction of a steel headframe.