Xuanhua name of Zhengyu energy efficient DHD355 DTH hammer drill bits manufacturer

Brand: Xuanhua name of n-licensing models: 355A Alias: drill bits Application: Drilling hole diameter: 138-218 (mm) Drilling depth: 254 (m) drilling angle: 90 (°) Dimensions: 138 ( mm) Weight: 19kg (t) vertical shaft speed: 25-75 drill diameter: 76 members of a family name of Zhengyu Xuanhua Drilling Machinery Co., Ltd. All drill bit products, selection and manufacturing process using advanced technology, technology, raw materials top international advanced drilling multinational manufacturing model, quality control through the establishment of part quality control file of the process to track the entire process, in order to ensure product quality and stability. Special steel drill bit using special heat treatment process through a rigorous and confidential process, so that parts with high surface hardness, wear resistance, the longest life expectancy. In mining, basic engineering, high work efficiency drilling borehole water and electricity transportation, drought drilling medium multiple projects for a variety of rock drilling, can support domestic and international variety of high and low pressure impactor. Zhengyu brand name of high pressure DHD55 / 355 / 3355A impactor by supporting the drill head diameter of 138mm, 152mm, 165mm, 178mm, 185mm, 194mm, 218mm, and shock connection size 84 * 8, and drill pipe connection size API 2-3 / 8 mines, quarries, road construction and other projects blast hole drilling, landslide protection, dam reinforcement, anchoring and other projects holes to heat air conditioning, hydrology, water wells and other areas of the hole.