Product Description

CIR65 CIR90 CIR110 CIR170 Low air pressure dth hammer drill bit

Product Description 

KINGDRILLING hammer bits are used with Down-the-hole hammers for drilling holes through a wide range of rocks types. In conjunction with DTH hammers, drill hammer bits are designed with a spline drive for rotating the bit in the ground. Drill bits are available in different sizes and different styles so they can drill a wide range of hole sizes. Our variety of Down the Hole (DTH) bits is manufactured using high quality materials to provide you with a fine balance between penetration capability and bit life.

Shank types:CIR76, CIR90, CIR110, CIR130, CIR150,CIR170,CIR200

DTH hammer bits hole diameter: 2″, 3”, 4”, 5”, 6”, 8′, 10″, 12″(85mm-305mm).

Technical Date

Model

Bit Dia.

(mm)

Connector Specification

NO.Buttons

(PCS)

NO.Air Holes(PCS)

Weight

(KG)

MD-MC50

50

29×4

5

1

1.0

MD-MC65

65

37×4

6

1

1.4

MD-MC76

76

44×4

8

2

2.2

MD-MC80

80

50×6

8

2

3.2

MD-MC90

90

54×6

10-11

2-3

3.9

MD-MC100

100

54×6

10-11

2-3

4.1

MD-MC110

110

54×6/60×4/65×6

13

2-3

6.0

MD-MC120

120

54×6/60×4/65×6

12-13

2-3

6.2

MD-MC130

130

54×6/60×4/65×6

15

3

7.2

MD-MC140

140

60×4/60×5

15

3

7.9

MD-MC145

145

60×4/60×5

16

3

8.2

MD-MC150

150

60×4/65×6/90×6

16/20

3

8.6-19.8

MD-MC160

160

65×6/90×6

20/21

3

19.3

MD-MC170

170

65×6/90×6

20

3

19.8

MD-MC175

175

65×6/90×6

20/21

3

20.0

MD-MC180

180

65×6/90×6

20

3

21.6

MD-MC200

200

90×6

20

3

24.0

 

How to order:

Shank Type + Head Diameter + Face Design + Button Shape

 

How to choose the buttons:

1. Domed/round buttons

Domes/round buttons are usually used as gauge buttons of DTH bits, suitable for very CZPT and very hard formations.

2. Parabolic buttons

Parabolic buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium CZPT and hard formations.

3. Ballistic button

Ballistic button are usually used as front buttons of DTH bits, suitable for medium CZPT and medium hard formations. They can also be used as gauge buttons if the rock is soft.

 

FAQ:

1. How to order the products?

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

 

2. How about the common packing?

A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.

 

3. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.

 

4. What is the materials?

Steel is 42CrMo, Alloy is from KD10BH from ZCCCT

 

5. Product feature

Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer, and harness process is managed by multipurpose CZPT heat treatment.

Our Advantages as below:

  1. High quality steels materials. Steel is from CZPT and Tungsten carbide are YK05, or T6 from Element Six in Germany
  2. Kingdrilling DTH tools are forged by advanced electron-hydraulic forging hammer.
  3. Advanced heat-treatment equipment: multipurpose CZPT heat treatment.
  4. Completed moulding (tooling ) departments with many molds available.
  5. Professional R&D team,completed quality system.
  6. Strict Quality-Check Systems.

Product Application:

About our Company 
Kingdrilling Machinery Co. , Ltd is established in 2005 years. Located in HangZhou East Lake High-tech Development Zone, is 1 of the most important manufacturers specialized in researching and producing Casing drilling system, DTH hammer, DTH bit, thread DTH bits, taper DTH bits, coupling sleeve, Anchor, Shank adapter, coal picks and so on.

Relying on the university resources and talent advantages in Optical Valley region, combining with multiple laboratories in universities, we focused on developing the newest products system.

Transport:

Package and Delivery:
Packed by Carton or Wooden cases.

Delivery:

  1. Goods in stock can be delivered within 5 days.
  2. DTH Bits production time is about 15 days.
  3. DTH Hammer product time is about 30 days.

More products:

 

Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
splineshaft

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
splineshaft

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

China OEM CIR65 CIR90 CIR110 CIR170 Low Air Pressure DTH Hammer Bit     near me shop China OEM CIR65 CIR90 CIR110 CIR170 Low Air Pressure DTH Hammer Bit     near me shop