High Drilling Efficiency Dth Hammer Bits , 80mm Hard Rock Drill Bits CD25-80

Products Parameters:

1. high and low air pressure down-the-hole drill bits

2. Face type: drop center bit/concave face/convex face/double gauge face/flat face bit

3. Carbide button shape: domed/round button parabolic/semi-ballistic button ballistic button sharp button flat button

4. Drill rock type: Granite, Marble, Limestone, Basalt, ect.

5. Project types: Blast holes, Quarry , Anchoring, Infrastructure, Geothermal holes, Well drilling,ect.

Description

1. Long life span: the wear-resist of tungsten carbides is 10-20 times higher compared with other similar materials, which greatly extends the life of the carbide bits;
2. High drilling efficiency: the high grade hardness of the carbides can always stay sharp, which could increase the drilling speeds too;
3. New Diamond's bits are widely used in different rock formations like carbonate rock,limestone,chalk rock, clay rock,siltstone and sandstone;
4. It can greatly reduce the drilling cost, because of its high drilling speed and life span, which reduces the times to changes bits in the drilling service.

Mainly used for Quarrying,Ore Mining,Coal Mining, soft, medium hard, and hard rock,blast hole drilling and water well drilling project,Marble quarry or well drilling and other construction projects,etc.

Bit face shape selection:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. Convex Face
For high penetration rates in soft to medium-hard with low to medium air pressures. It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons, but poor hole deviation control.
4. Double Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rock formations. Designed for high air pressures and good resistance to steel wash step gauge bit.
5. Flat Face Bit
This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures. Good penetration rates an resistance to steel wash.

Caibide BUtton Shapge		Domed / Spherical Button Domed / Spherical Buttons are usually used as gauge buttons of DTH Bits, suitable for very abrasive and very hard formations.
		Parabolic / Semi - Ballistic Buttons Parabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.
		Ballistic Button Ballistic Buttons are usually used as front buttons of DTH BIts, suitable for medium abrasive and medium hard formations. They can also be used as gauge buttons if the rock is soft.
		Sharp Button Sharp BUttons are usually used as front buttons of DTH bits for soft formations where fast penetration rates are possible and button breakage is minimal.
		Flat Button Flat buttons are usually used as protection buttons to reduce wear on rubbing surfaces of DTH bits.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturer (factory).

Q2: How long is your delivery time?

A: Generally it is 5-15 working days if the goods are in stock. Or it is 20-30 working days if the goods are not in stock, it is according to the quantity.

Q3. Can you produce according to the samples?

A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q4. Do you test all your goods before delivery?

A: Yes, we have 100% test before delivery.

Q5: How do you make our business long-term and good relationship?

A: 1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

About US

Changsha Chao Diamond Machinery Manufacturing Co., Ltd. is a modern high-tech enterprise specializing in research and manufacture of rock drilling machinery and pneumatic tools in China. The company has rich scientific research and production experience, using the best raw materials, advanced production technology and rigorous testing methods, to produce products with superior performance and stable and reliable quality. "Super Diamond" brand rock drilling and pneumatic series products are sold well all over the country due to their superior performance, stable and reliable quality. They have been exported in batches to more than 20 countries and regions, such as Korea, Brazil, Australia and South Africa, and are well received by users.

The company is located in Liuyang, Changsha, a beautiful fireworks city. It covers an area of 26600 square meters. Its production plant covers 22,000 square meters. It has nearly 100 employees, 26 engineers and technicians, and 8 senior engineers. There are nearly 400 sets of professional equipment for research, manufacture and testing of rock drilling machinery and pneumatic tools. The company develops and manufactures the most advanced positive and negative circulation DTH impactors; reverse circulation impactors; various positive and negative circulation DTH drills; eccentric follow-up pipe drilling tools, centerline follow-up pipe drilling tools, slider type follow-up pipe drilling tools, double follow-up pipe drilling tools for follow-up drilling in overburden and loose rock strata; various thread drills; It is widely used in earthwork engineering, mining, water well engineering and construction engineering, geothermal drilling, municipal engineering and other fields.Adhering to the spirit of excellent innovation, the company provides high-quality products, advanced technology, comprehensive service, the pursuit of customer-centered, quality-oriented, to provide overall rock drilling solutions as the development goal, sincerely hope to work with old and new friends to win-win and create a better tomorrow.