On May 6th, the unloading system of the“C-type” triple-car tippler designed and manufactured by DHHI was successfully commissioned after heavy-load test at Cao Fei Dian site, and smoothly passed the appraisal of railway authorities. This machine is the world first Reversible-type unloading system. The customer is He Bei Long Cheng Coal Comprehensive Utilization Co., Ltd.This machine is the innovative product designed and manufactured by DHHI in the year 2013 and it has obtained a patent. It can tip all kinds of the existing wagons and the C80E general type wagons which will soon be put into use, and also can tip the C80 type special wagon on Datong-Qinhuangdao Line.The heavy-load test and inspection won the high evaluation of Tai Yuan Bureau and Qingdao Sifang Rolling Stock Research Institute: This machine is the world first “C-type”triple-car tippler unloading system; It has the peak efficiency in domestic Reversible-type tippler system; The system has high compatibility, it can tip all kinds of domestic wagons; The unloading system technology is very simple so that there is no need to convert technology while tippling special or general wagons; The unloading system first implement the job by long distance pulling the 10000-ton train instead of the engine.The successful heavy load-test and passing inspection by railway authorities mark unqualified success of the world first“C-type”triple-car dumper.