Verified Company
Zhengzhou Yukun Machinery Equipment Co., Ltd.
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Specification of quarry rock drill bits
1. Quarry rock drill bits made with high quality of best quality alloy steel bar and tungsten carbides, through heat treatment.
2. Quarry rock drill bits can be mainly used in drilling aperture of 50-60mm, pressure of 0.7-1.2Mpa, rock hardness f≥12 hole.
3. Advantage of quarry rock drill bits—high quality of drilling holes, high drilling speed, exclusive proprietary technology.
4. Quarry rock drill bits can be used for rock drilling, blasting holes, building highways and other drilling works.
5. Quarry rock drill bits can be regrind for several times and long life.
Feature of quarry rock drill bits
(1) Type: quarry rock drill bits
(2) Diameter: 50-127mm
(3) Bit design: flat, flat retrac, drop center, drop center retrac
(4) Thread diameter: 32, 38, 45, 51mm
(5) Package: in wooden case or in carton
(6) Productivity: 20000pcs/ month
Parameter of quarry rock drill bits
Material of quarry rock drill bits
Item | material |
Button bit | Tungsten carbide |
Button rock drill bit alloy head | Yk05 |
Mf rod | 22SiMnCrNiZMo and 22CrNi3Mo |
Bench drill rod | 22SiMnCrNiZMo and 22CrNi3Mo |
Shank adapter | 30CrNi4Mo and 18CrNi3Mo |
Pneumatic picks tools | T10 |
Extension rod | 35SiMnMo |
Small hole drilling tools | 55SiMnMo and 95CrMo |
More details of quarry rock drill bits
Carbide design | Brief introduction |
Spherical Button |
Spherical Buttons are usually used as gauge buttons of DTH Bits. Suitable for very abrasive and very hard formations.
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Parabolic/Semi- Ballistic Buttons |
Parabolic/Semi-Ballistic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.
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Ballistic Button |
Ballistic Buttons are usually used as front buttons of DTH Bits. They can also be used as gauge buttons if the rock is soft. Suitable for medium abrasive and medium hard formations.
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Conical Button |
Conical Buttons are usually used as front buttons of DTH bits for soft formations where fast penetration rates are possible.
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Flat Button |
Flat buttons are usually used as protection buttons to reduce near on rubbing surfaces of DTH Bits.
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Bit design | Brief Introduction |
Drop center |
Perfect in abrasive formations where there is accelerated button wear or in medium to hard rock when ballistic buttons have tendency to break.
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Drop center/retrac |
To be used in medium-hard and fissured rock formations, better hole deviation control.
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Flat front
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Ideal for medium hard rock when the rock formation causes heavy gauge wear on the bit. Can also used in very hard and abrasive rock formations.
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Pictures of quarry rock drill bits
You will enjoy
1. Factory price with high quality.
2. Perfect 7*24hours services.
3. For quality check, a trail order is available.
4. We have professional designer & sample maker team can supply various unique design!
5. Both size & color can do as the customer request, no extra cost.
6. 100% quality assurance, enjoy a good reputation at home and abroad!
7. Priority to become our agent in your city, we offer you our factory prices.