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Quick Details

  • Place of Origin: Fujian, China (Mainland)
  • Brand Name: BESTLINK
  • Model Number: CIR90 Button Bits
  • Type: Drill Bit
  • Machine Type: Drilling Tool
  • Certification: ISO9001
  • Material: Carbon Steel
  • Processing Type: Forging
  • Use: Well Drilling
  • Application: Energy, Transportation, Metallurgy, Building etc.
  • Usage: Rotation impact drilling
  • Color: Blue
  • Condition: New
  • Hole Diameter: 65mm - 220mm
  • Hs Code: 82071990
  • Key word: Button Bits

Packaging & Delivery

Packaging Details: Carton or Plywood Box
Product Description

DTH bit is our main product. After many years searched, we have rich experience in development and manufacturing high quality products, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.

1.high and low air pressure down-the-hole drill bits 
2.Low air pressure hole Dia.:65-220mm  

3.Face type: drop center / concave / convex / double gauge / flat  

 

Technical Data:

CIR series low air pressure DTH bits:

TypeDia.Spline No.Weight (Kg)
CIR656862.5
CIR707663.4
CIR808363.45
CIR80X8363.5
CIR909063.5
CIR9010064.5
CIR9013069.5
CIR11011066.4
CIR11012368.5
CIR110W11066.5
CIR110W12368.8
CIR150155612
CIR150A155612.5
CIR150A165614
CIR170175615.5
CIR170A185616
CIR200W200648

 

J series low air pressure DTH bits:

TypeDia.Spline No.Weight (Kg)
J60C6542.26
J70C7542.8
J80B8543.2
J80B9044.8
J100B11045.04
J100B11545.5
J100B12046.25
J150B155414
J150B160415.5
J150B165422
J170B170424.5
J170B180428.6
J200B210443.5
J200B220445

 

How to choose a DTH bits for your demand:

 

How to Select DTH BITS FACE SHAPE AND CARBIDE BUTTON SHAPE

 

A: Bit face shape selection
DropCenter Bit
For high penetration rates in soft to medium-hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
Concave face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
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.
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.
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

Matching the insert to the job requirements is essential in achieving the desired results.  

Different buttons is ideal for different ground conditions, abrasion levels, PSIs and penetration levels.  In general, the larger the number of gauge buttons the better overall performance, especially in hard rock.

Hemispherical
• Height 0.5 Ø

• Application Strength - multipurpose

• Best suited to hard ground

• 25,000 to 45,000 PSI (170 to 300 MPa)

• Abrasive to very abrasive
Ballistic Button
• Height 0.75 Ø

• Application Strength - fast penetration

• Best suited to soft ground

• 10,000 to 20,000 PSI (70 to 140 MPa)

• Non abrasive ground
Parabolic Button (semi ballistic)
• Height 0.6 Ø

• Application Strength - fast penetration

• Best suited to medium ground

• 15,000 to 25,000 PSI (100 to 170 MPa)

• Mildly abrasive ground
Conical Button
• Height 0.65 Ø

• Application Strength – fast penetration

• Suited for all non-abrasive ground types

• Smaller contact area

• Best suited for smaller diameter bits  

 

The CIR series DTH hammer and bits, are ideal drilling tools, is widely used in such industries relating to energy, transportation, metallurgy, building etc. Here are the project case.

 

Packaging & Shipping

 Packing details can be customized as per your requirement (it could be plywood case, plastic box or carton...)

 

Timely shipment can be made upon our negotiation

 

Factory and Workshop

Certifications

Company Information

 Xiamen Bestlink Factory Co., Ltd. is committed to providing the best drilling and cutting machines, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project. Our company is now a leading manufacturer of cutting and drilling equipment for the extraction of marble, granite and ornamental stones in China. 

1. Our factory has been specialized in manufacturing drilling and cutting machine and spare parts since 1980.

2. We have advanced technology and equipment.

3. Our technician has more than 36 year’s professional working experience.

4. Main Market: Brazil, Chile, Colombia, Uruguay, Australia, Ukraine, Ruassia, Norway, Turkey, USA, Canada, Iran, Malaysia, Thailand, India, etc.

 

FAQ

The information you may like to know before order: 

1. Methods of Payment

    T/T (Telegraphic Transfer) or Western Union or L/C at sight.

2. Delivery Time

    Based on order quantity, normally it takes 25 days for production.

    Only 2 or 3 days if we have stock on your request model and size.

3. Shipping way

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

    Bulk order: we suggest by air or by sea.

4. Quality Control

    We have our own experienced QC.

    There will be strict inspection and testing for every order before shipping out.

5. After Services:

  1) Our sales team will response for your question within 24 hours (Holidays Excluded)

  2) Technical Support will be available in any time.

Contact

 

 

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