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φ75 three-wing diamond coreless drill

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φ75

Scope of application

The diamond drill bits produced by our company are widely used in various regions at home and abroad. The main domestic application areas are: China Coal Group, Longmei Group, Shenmei Group, Fengfeng Coal Industry, Kailuan Coal Industry, Lu'an Coal Indust

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Product parameters

Commodity name: φ75 three-wing diamond coreless drill
Specifications: φ75
Scope of application: The diamond drill bits produced by our company are widely used in various regions at home and abroad. The main domestic application areas are: China Coal Group, Longmei Group, Shenmei Group, Fengfeng Coal Industry, Kailuan Coal Industry, Lu'an Coal Indust

φ75 three-wing diamond coreless drill

Diamond drill

Alias: Diamond Bits, Diamond Compact Disc Bits, PDC Bits
Product parameters：Product Parameters

Diamond Compact (PDC) Bit Series

Diamond Compact Disc (PDC) is a special superhard material synthesized by synthetic diamond and cemented carbide at one time under high temperature conditions. It not only has the advantages of high diamond hardness and wear resistance, but also has the impact resistance of cemented carbide. It has the characteristics of strong strength and large cutting edge. Using it as the blade of the drill bit can greatly improve the work efficiency of the drill bit. It is an ideal drill bit for drilling into medium and hard rock layers.

Strength distinction:

The strength of the diamond composite drill is mainly determined by the strength of the diamond composite. At present, the strength of the diamond composite drill is mainly divided into three types: ordinary, reinforced, and high-strength; the diamond composite is mainly divided into 1304 and 1308. Types, 1304 and 1308 refer to the diameter and thickness of the composite sheet. The basic types we use are: ordinary type, reinforced type and high-strength type; the ordinary type is 1304 flat composite sheet, and the reinforced type is 1304 spherical composite sheet and 1308 plane. Composite sheet, high-strength type is 1308 spherical composite sheet.
The high-strength diamond blade blade adopts the newly developed spherical diamond blade, which is characterized by fast drilling speed and strong impact resistance. When the drill bit is drilling, the lip is used to scrape the rock in the normal and uniform formation. The protruding part can prevent the drill bit from cutting a large amount of footage instantaneously when it encounters a gap during the drilling process, which greatly reduces the accidental damage of the drill bit and improves the drilling ability to deal with complex rock formations. into the level. **Adapted to the rock formation and drilling schedule parameters as shown in the table below:

Adapt to the rock formation parameter table:

line number	Type	Adapt to rock formations
1	Ordinary PDC drill	Soft to medium hard rock with F<10
2	Reinforced PDC bits	Medium hard rock with F=10－12
3	High strength PDC drill	Hard rock with F<18

Application Field:

At present, the application fields of diamond compact bits are relatively wide. The diamond bits produced by our company are all over the country in coalfields, oil drilling, geological exploration, water conservancy and hydropower, railways, highways, tunnel construction and other industries.

Product Advantage：

The diamond composite drill bits produced by our company are made of high-quality steel forging and pressing, and are processed by vacuum automatic heat treatment equipment to increase the mechanical properties. The ordinary type adopts domestic high-quality composite blades as the blade, and the super-strong type adopts the blade produced by GE Company in the United States. According to the different geological conditions, the corresponding quality grade can be selected, which can achieve higher product cost performance and achieve economic indicators of energy saving and high efficiency.
The diamond drill bits produced by our company are all over the country in coal field, oil drilling, geological exploration, water conservancy and hydropower, railway and highway, tunnel construction and other industries. The two-wing PDC anchor bit (half-piece standard type) is suitable for rock formations below grade 8. Under the same rock formation conditions, the drilling life is 10-30 times that of ordinary alloy drill bits, and the efficiency is increased by at least 60%. Labor intensity, saving working hours. The key raw materials of the two-wing PDC anchor bit (half-piece reinforced type) blade are produced by GE Company in the United States. Its diamond content is 1.5 times that of ordinary drill bits. It has excellent wear resistance, significantly improved efficiency, and reduced overall cost. It is suitable for medium-hardness below grade 12. rock formations.
The high-strength diamond drill blade adopts the newly developed spherical diamond blade, which is characterized by fast drilling speed and strong impact resistance. When the drill bit is drilling, the lip is used to scrape the rock in the normal and uniform formation. The protruding part can prevent the drill bit from cutting a large amount of footage instantaneously when it encounters a gap during the drilling process, which greatly reduces the accidental damage of the drill bit and improves the drilling ability to deal with complex rock formations. into the level.

φ75 φ75 φ75三翼金刚石无芯钻头 φ75

Diamond Compact Disc (PDC) is a special superhard material synthesized by synthetic diamond and cemented carbide at one time under high temperature conditions. It not only has the advantages of high diamond hardness and wear resistance, but also has the impact resistance of cemented carbide. It has the characteristics of strong strength and large cutting edge. Using it as the blade of the drill bit can greatly improve the working efficiency of the drill bit. It is an ideal drill bit for drilling medium and hard rock layers.
The diamond drill bits produced by our company are widely used in various regions at home and abroad. The main domestic application areas are: China Coal Group, Longmei Group, Shenmei Group, Fengfeng Coal Industry, Kailuan Coal Industry, Lu'an Coal Industry, Yangmei Group, Jinmei Group, Xishan Coal and Electricity, Fenxi Coal Industry, Datun Coal Industry, Xinji Energy, etc.; the main use areas in foreign countries: Russia, Australia, Southeast Asia and Northern Europe.

Suggested parameter table for drilling regulations of diamond compact (PDC) bits:

line number	Specification mm	Drilling schedule parameters
line number	Specification mm	Drilling pressure (Kg)	Speed (rpm)	Pump volume (1/min)
1	Ф28	300—700	300—350	150—200
2	Ф30	300—700	300—350	150—200
3	Φ32	300—700	300—350	150—200
4	Φ48	300—700	300—350	120—160
5	Φ56	320—800	250—350	130—180
6	Φ75	480—1200	200—300	150—200
7	Φ94	640—1600	150—250	200—250
8	Φ110	880—2200	120—200	200—300
9	Φ152	1500—3000	100—200	500—850
10	Φ190	1800—4000	100—200	600—1200
11	Φ230	2200—4500	100—200	750—1400
12	Φ270	2400－5000	100—200	1000－1500