At present,Both imported and domestic slag-pot lorries adopt hydraulic-mechanical drive.As the domestic hydraulic component elements are short of series products,it results in many difficuits for model-selected design.For this reason,we have performed feasibility study,computation and demonstration for slag-pot lorry using mechanical drive,and developed four new model LCZ35 slag-pot lorries with mechanical drive.It has been proved in practice the comprehensive performance of this new slag-pot lorry can be compared favourably with that of the same kind of foreign hydraulic-mechanicalslag-pot lorry,it blaze new trails.