INTRODUCTION

a). The pipe casing should avoid to the collision, especially of casing joints knock againstwhen install the casing bolts, it must be clean, otherwise it will cause the difficult installation

b). The drilling bucket needs to be chiseled in advance when pile casing drives the increasedtorque to diffcult

c). The drilling bucket needs to be checked position and verticality of hole, to avoid openingthe door at the hole bottom when lift the drilling open and closed against to casing shoes

d). You must be tested all movements of pulling machine normally before concretingPull up pipe casing immediately to prevent steel trunk floating after the end of grouting

- Casing joint

COMPANY PROFILE

EXHIBITION

CERTIFICATE

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.