DAMPING SPRING

Damping spring is for kelly bar accessories,it assumes spiral-shaped,the elasticity is strong ,each different specification of spring is suitable for different type of kelly bar.

Over the years we focus on research and development of the production of kelly bars, drill tools, with complete kelly bars fabriction and testing equipments, as well as we own professional research , design, sales and after-sales service team. Our company has a number of self-developed patented products, matched with domestic and abroad brands such as SANY, CRRC, XCMG, Bauer, Soilmec, IMT and other brand rigs , exported to Southeast Asia, the United States, Russia, the Middle East and other countries.

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.