Welcome to Shandong Yanggu Tianyue Drill Tools Co, Ltd.
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E-mail : sales1@tianyuedrill.com
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ABOUT USShandong Yanggu Tianyue Drill Tools Co, Ltd. is a professional manufacturer of rock drilling tools in China. Our company has advanced heat treatment, inspection and testing, measurement , and experimental equipment
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PRODUCT CENTERThe products of our company include: T38, T45, T51, D32, H25, H28, H32, H35, as well as MF-ROD, extension rod, shank adapter, drill bit and supporting products specially used by hydraulic rock drilling machine.
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NEWSOur company integrates scientific research, design, production, and operation in one, owning 5 related patents (1 invention patent), 4 trademarks, the import and export right of self-operation, and passing ISO9001 certificati
Instructions for using down-the-hole drill bits
Release time:
2022-12-22
In order to use the down-the-hole drill bit correctly and ensure the rock drilling speed and service life of the drill bit, the following points must be paid attention to:
In order to use the down-the-hole drill bit correctly and ensure the rock drilling speed and service life of the drill bit, the following points must be paid attention to:
1. Select the down-the-hole bit according to the rock condition (hardness, abrasiveness) and the type of drilling rig (high wind pressure, low wind pressure). Different forms of alloy teeth and tooth arrangement methods are suitable for drilling in different rocks. Choosing the correct down-the-hole drill bit is the prerequisite for obtaining the best use effect;
2. When installing the down-the-hole drill bit, put the drill bit gently into the clamping sleeve of the down-the-hole impactor, and do not collide with force, so as not to damage the tail handle of the drill bit or the clamping sleeve;
3. During the rock drilling process, it is necessary to ensure that the air pressure of the down-the-hole drilling rig is sufficient. If the impactor works intermittently or the powder discharge of the blast hole is not smooth, check the compressed air system of the down-the-hole drilling rig to ensure that there is no rock slag in the hole during the drilling process;
4. If metal objects fall into the hole, they should be sucked out with a magnet or other methods in time to avoid damage to the drill bit;
5. When replacing the drill bit, pay attention to the size of the drilled hole. If the diameter of the drill bit is excessively worn, but the blast hole has not been drilled, do not replace the drill bit with a new one to avoid sticking the drill bit. The job can be done with an old drill bit that has been used and has approximately the same worn diameter;
6. For down-the-hole drill bits that are abnormally scrapped in the early stage, our company should be notified in time. The content of the notification mainly includes:
1), rock type and construction site;
2) The model of the impactor used in conjunction with it;
3) The failure mode of the drill bit (broken teeth, lost teeth, collapse of the drill head, fracture of the tail shank of the drill bit, etc.);
4), the service life of the drill bit (the number of meters drilled);
5) Number of failed drill bits;
6) The footage in meters of the drill bit during normal use (our company and other manufacturers on site).
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CONTACT US
Tel : +86 19163585865
Fax : +86 19163585865
Email ：sales1@tianyuedrill.com
WhatsApp : +86 19163585865
Add : No. 229, Xihu Road, Xihu Town, Yanggu County, Shandong Province
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