Coke oven machinery is applied in metallurgical field, which consists of a set of equipment necessary for coking. DHHI has been engaged in design and manufacture of coke oven machinery since 1950s and has provided nearly 630 sets of coke oven machineries for about 300 customers both at home and abroad. The products include top-charging and stamping coke oven machinery, heat recovery equipment, coke bucket lifter, etc.

The 5～20000t bridge cranes designed and manufactured by DHHI according to international standards are of superior quality, advanced technical performance, and are popular among the customers. Since 1949, DHHI has totally designed and manufactured about 40000 sets of different types of bridge cranes, covering 9 major series, more than 50 specifications.

Boom-type stacker & reclaimer is a continuous and efficient bulk material handling machinery, which is widely applied in port, metallurgy, mine, electric power, coal chemical industries, etc. for continuous stacking and reclaiming of bulk material such as coal, ore, etc. DHHI is capable of independent developing and manufacturing of various stacker & reclaimers, stackers and reclaimers, of boom-type, with rated capacities 100~15000t/h.

The port machinery developed and manufactured by DHHI is applicable to handling of bulk material and large piece e.g. plate, etc. at bulk cargo terminal. The main products of DHHI include ship loader, grab ship unloader, screw ship unloader, chain-bucket ship unloader and portal crane, etc., which are advanced in technology, complete in performance, reliable in operation, good in stability and is in the good graces of and praised by domestic and overseas customers.

DHHI started to develop and manufacture core components for megawatt-level wind turbine from 2004 and has developed 15 kinds of core components for 1.5-6MW wind turbines, e.g. gearbox, yaw and pitch drives, nodular iron castings, etc., which have achieved batch production.