The complex, in cooperation with researchers of the State Academy of Sciences, newly developed the CNC curved-surface welder and put the equipment for heat-treatment of large toothed gear on a CNC basis.

And it installed the planetary reducer-combined servomotor at tens of large CNC machine tools, thus saving the manpower and electricity by 30 and 40 percents respectively and raising their productivity 1.5 times.

The CNC curved-surface welder is of great economic value for its high efficiency.

The equipment for heat-treatment of large toothed gear fully ensures the surface hardness of cogs and depth of quenched case, thus raising their serviceable life 6-10 times longer than before.

According to Ri Yong Hwan, vice-chief engineer of the complex, the complex is hastening the modernization of the production process and equipment, including all-purpose comprehensive processing lathe and planer-type milling machine.

In January Juche 98 (2009), leader Kim Jong Il visited the complex and underscored the need to dynamically push ahead with the project for putting itself on a modern and scientific basis as well as further improve the quality of power-generating equipment by introducing the advanced technologies.