ESSF Bits Of Self -Drilling Anchor Bolt
Dia.:200mm
Length:123mm
Button:28*10mm
Outer dia.120mm
Inside dia.:70mm
Weight:14.65kg
Material:42CrMo =EN10083= 4140
Category：
Rock Bolt
Keywords：
Rock Bolt
Description
ESSF bits are the main type bits for Self -Drilling Anchor Bolt.ESSF bits are Designed with tungsten carbide.The "button" design of this drill bit makes it excellent for unconsolidated rock with boulders.
The self-drilling hollow anchor system performs drilling, anchoring and grouting in one step. It allows air and water to freely pass through the bar during drilling to remove debris and then allows the grout to be injected immediately after completely covering the entire bolt.
The correct selection of the drill bit dependent on the geological conditions on site is essential to ensuring a productive and cost-effective installation of the hollow bars. Conventional drill bits are designed for longevity. We offer a wide range of drill bits suitable for diverse geological conditions.Drill bit adapters increase flexibility by allowing the use of drill bits designed for other dimensions of hollow bars.The stability of the drill bits enables safe drilling of the borehole down to the required depth Since the drill bit is used for one borehole only (sacrificial drill bit), the service life should meet but not significantly exceed the requirements so as to ensure cost-effectiveness)The type of drill bit used and, in particular, the inserts are dependent on the geological conditions on site,The drill bit diameter is dependent on the design requirements and the specifications defined in the approvals.
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APPLICATION
The company has established long-term strategic cooperative relations with Shenhuo Group and many other enterprises, scientific research institutions and equipment enterprises. The company integrates resources, pays attention to product technology research and development, and has obtained 1 invention patent and 11 utility model patents. The company's main products are: all kinds of geological exploration, coal mining drilling for drill pipe, diamond bit, cutting teeth, drill drill, air drill, coal rock drill and fishing tools and other supporting products. Among them, the H22 drill rod repair equipment developed by the company solves the problem of drill rod damage repair work to fill the gap in the market.
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Address:Zhangzhuang Village, Xihu Township, Yanggu County
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