• CORE BARREL WITH ROLLER BIT

• 1. Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete.

2. Cutting ring with roller bits and releases the internal stress of rock;

3. Drilling with the method of rolling and squeezing can increases the anti-wear ability of the barrel;

4. medium or slightly weathered rock, hard or super hard bedrock;

EXHIBITION :

Beijing Jietaihongli Technology Co., Ltd., founded in 2004, headquartered in Beijing, branch factory in Shouguang, Shandong. The company is mainly engaged in the production and sales of rotary piling kelly bars , drilling tools, rotary piling rig overhaul, rig sales and accessories supply.

Beijing Jietai Haoli Technology Development Co., Ltd. is one comprehensive enterprise that produces and sells rotary drilling kelly bars ,drilling tools,piling rigs spares and piling rig maintenance.The company established in 2004. The founder has been engaged in after-sales service of drilling rigs and kelly bars such as IMT, SOIMEC, BAWER, and MAIT before the establishment of the company. During this period he accumulated rich experience in kelly bar manufacture and maintenance.The company focused on the research, development and production of kelly bars after establishment. The main kelly bars produced include frictional kelly bars ,interlocking kelly bars and square kelly bars.