HDH360 DTH Drilling Bits For 3.5" Hammer
Production Description:
DTH hammer is a percussion system driving a piston inside a hammer body with up and down a motion by compressed air and transmitting intensive percussion energy to the bit to enable the drilling by crushing the rock. The drilling method by DTH hammer exerts high drilling performance especially for drilling hard rock and contributes to shortening the work schedule. Hence, this method is widely utilized for foundation work, landslide prevention work, quarrying services, marine civil work.
Specification
How to Select Threaded Button Bits Face shape and Carbide Button Shape
A: Bits face shape selection
Drop Center
For high penetration rates in soft to medium-hard and fissure rock formations.
Concave Face
The all-round application bit face specifically for a 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 resistant to steel wash, and good resistance to steel wash step gauge bit.
Flat Face
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 and resistance to steel wash.
B: Insert Carbide Button shape Selection
The different button is ideal for different ground conditions, abrasive levels, and penetration levels. In general, the more 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 our Threaded Button Bits:
* Be produced from premium quality Nickel-alloy steel or Molybdenum-ally steel for increased durability and wear characteristics
* Specific heat treatment standards and strict production process ensure consistent performance
Inventory of Products:
Company Profile:
JWE Carbide Co., Ltd. is designated as a high-tech and new material enterprise was founded in March of 2005, with registered capital of USD1, 000, 000, located in Lukou Economic Zone of Zhuzhou city, the hometown of Chinese Tungsten Carbide. Our factory covers an area of 20,000 square meters, equipped with advanced technologies and manufacturing equipment, we major in researching, developing and producing medium and high-grade tungsten carbide products.
Contact:
Glynn Hawk
Account Manager
Mobile & WeChat & LinkedIn & WhatsApp & Skype : +86 13786351707
Tel: +86 0731 2738 8873
Email: sales2@jwecarbide.com
JWE CARBIDE CO., LTD.
Wantang Industrial Zone, Zhuzhou, Hunan, China
www.jwecarbide.com
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