Founded on April 30, 1 999, Changsha Heijingang Industrial Co., Ltd (with brand name HJG Drill & BD Drill) is a famous privately operated enterprise specialized in researching and manufacturing rock drilling equipment and pneumatic tools. Thecompany has rich scientific research and manufacturing experience. It produces high quality rock drilling products by using high quality raw material, uilizing advanced manufacturing technique and imposing strict quality inspection. The products made by BD Drill are being sold well all over China and exported to more than 50 countries, such as Australia, South Africa, Brazil, Chile, Russia, South Korea and so on. Products have gained a high praise and a good reputation. Changsha Hejingang Company is located in Leifeng'hometown Wangcheng of Hunan province, with land area 115000㎡ and workshop area 45000㎡ and employees more than 700, we are equipped with around thousand of advanced equipment for manufacturing rock drilling machine and pneumatic tools. We have researched & designed independently and manufactured the following products: the most advanced high air pressure DTH hammer, various kinds of DTH bits; The eccentric casing equipments, symmetric casing equipments, double driters casing system for drilling projects in overburden and fracture rock formations; Various kinds of threaded top hammer bits, shank adapter, coupling sleeves, reverse circulation hammers and bits, new-type water well & geothermal drilling rig, open-pit blast hole drilling rig; The newest designed and manufactured mining tricone bits, various specification of cemented carbide, high strength structural alloy steel in different applications and specifications, In 2015, brand of BD Drill (BLACK DIAMOND) has been approved as Chinese Well-know Trademark.
