Propower 51mm-127mm Drill Button Bit Mining Granite drill Thread Bits

   Propower factory can give the lowest price due to direct sale to customers without distributor!

Thread drill bits are made by high quality alloy steel bar and tungsten carbides.

Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.

In addition, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.

How to Select DTH Bits Face shape and Carbide Button Shape

A:Bits face shape selection

Drop Center Bit

For high penetration rates in soft to medium-hard and fissured rock formations.

Concave Face

The all-round application bit face specifically for medium hard and homogeneous rock formation. Good hole deviation control and good flushing capacity.

Convex Face

For high penetration rates in soft to medium-hard with low to medium air pressure. It is the most resistance to steel wash, and good resistance to steel wash step gauge bit.

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.

B:Insert Carbide Button shape Selection

Different button is ideal for different ground conditions, abrasive levels, PSIs and penetration levels. In general, the more of gauge buttons, the better over performance, especially in hard rock.

Spherical

• Application Strength-multipurpose
• Best suited to soft abrasive
• 25,000 to 45,000 PSI (170 to 300 MPa)
• Abrasive to very abrasive

Ballistic Button

• Application Strength- fast penetration
• Best suited to soft ground
• 10,000to 20,000 PSI(70 to 140 MPa)
• Non abrasive ground

Semi-ballistic

• Application Strength-fast penetration
• Best suited to medium ground
• 15,000 to 25,000 PSI(100 to 170 MPs)
• Mildly abrasive ground

Wedged (Conical) Button

• Application Strength- fast penetration
• Suited for all non-abrasive ground types
• Smaller contact area
• Best suited for smaller diameter bits

Features of Nickel-alloy steel drill bits:

1) Reliability
The piston of DTH Hammer uses the special (imported) high nickel alloy steel, with advanced heat treatment as military industry standard.
Strengthening processing on hammer surface for higher were-resistance.

2)Suitability
Specially designed drill bits for middle soft and hard rock formations. Easily disassembly thread for easy maintenance.

3) Efficiency
Extra-short structure design DTH hammer and bit for great efficiency of high impact energy transmission, with high impact power and fast drilling rate.
Hammer and bit design are optimized by computer simulation, with best air distribution chamber and air tightness design.

Our DTH bits are widely used for produce large-diameter holes in rocks for water-well drilling, tunnels, mineral exploration, geothermal drilling, subway engineering drilling. quarrying and roads, power stations, and other construction projects. it is suitable for very hard and abrasive rock formation, medium-hard and homogeneous formation. soft rock and fissured rock formations etc. 

Our factory also can supply you with high pressure and medium to low pressure DTH hammers. It strictly matches with API standard and other Chinese industry standards. It is durable for being produced with advanced craftwork and good material.

Design Principles and Advantages of our Products:
1. According to the newest rock drilling theory to design our DTH hammer for deliver maximum energy to drilling bit and ensure high drilling rate.
2. High quality alloy steel materials and advanced processing technology ensure smooth operation ,reliability and longer service life.
3. The simple structure of our DTH hammer ensure low problem rate and easy operation&maintenance.
4. The drilling speed is 15%-30% higher than other brands.

• Select equipment model.
• Design and manufacture products according to client's special requirement ;
• Train technical personnel for clients

• Pre-check and accept products ahead of delivery .
• Help clients to draft solving plans
  

3.After-sale services:

• Our sales team will response for your question within 24 hours (Holidays Excluded)
• Technical Support will be available in any time
• Free replacement will provide once the failure confirmed caused by our product quality

1. How to order the products?

A: Send the inquiry with detail item description or with Model number.

2. How about the common packing?

A: If there is no packing demand, we will take it as sea-way packing.

3. Can I expect a quality products?

A: Yes. All our activities are accredited to ISO 9001:2008 and API, both in products and services, at the same 

time, mature production technology ensuring the quality satisfy international request.

4. How to check the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our 

website for we get a better understanding.

5. How to control quality?

A: We have our own experienced QC team,there will be strict inspection and testing for every order before shipping out.

6. Fast delivery time:

A: Usually it takes 25 days for production.only 2 or 3 days if we have stock of your request size.

7. Shipping way:

A: Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air

Bulk order: we suggest by air or by sea. 

8. Competitive price:

A: Propower factory can give the lowest price due to direct sale to customers without distributor!