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CIR90 Hard Rock Drilling DTH Drill Bits 90mm For Stone Quarrying , High and low air pressure

1 set
CIR90 Hard Rock Drilling DTH Drill Bits 90mm For Stone Quarrying , High and low air pressure
Features Gallery Product Description Request A Quote
Model: CIR55, CIR60, CIR70, CIR80, CIR90, CIR100, CIR110 Down The Hole Hammer
Applications: Mineral Drilling, Exploration Core Drilling
Usage: Use Together With DTH Button Bits
Series No.: SD, ROS, Cop Br DHD Mission
Drill Diameter: 65-800mm
Drilling: Down The Hole Drilling, DTH Drilling
Name: Down The Hole Hammer, DTH Hammer
Mining Object: Mining, Ore Machinery, Stone Quarry Drilling
Model No.: DHD360, QL60, SD80, COP64, COP84
Material: High Carbon Steel
Machine: Hydraulic Crawler Drill Rig
Tools: Top Hammer Drilling Tools
High Light:

down hole tools


down hole hammer

Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: ISO
Model Number: CIR90
Payment & Shipping Terms
Packaging Details: Carton/Wooden case
Supply Ability: 100 sets
Product Description

CIR90 Hammer Hard Rock Drilling DTH Drill Bits 90mm For Stone Quarrying

ROSCHEN is committed to providing the best drilling and cutting machine, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project.

General Introduction:

DTH Drill Bits are one of our main products. After many years develop, we have rich experience in develop and manufacture high quality DTH hammer drill button bits, which adopted high-quality raw materials, advanced technology and passed through strictly inspection.


Hammer DTH drill bits / Down-the-hole caride button bits were used for blast hole drilling. Which is working with DTH hammer, mainly applied in Mining, Marble quarry or well drilling and other construction projects.




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

1) Low air pressure hole Dia.: 65-220mm
2) High air pressure hole Dia.: 85-305mm

2. Our DTH Bit can be suitable for many types of DTH Hammer, such as XL, Mission, COP, IR, Mach, Demag, SD, Bulroc, Halco Mach, Digger, etc.

Technical Datas:

For parts of High air Pressure DTH Drill Bits.


DTH Hammer Bits Bit Dia.(mm) No. Air Holes Gauge Buttons Front Buttons Weight (Kg)
HD35 85 2 6×Φ13 4×Φ12 4.2
(IR35,Cop34) 90 2 6×Φ14 4×Φ12 4.5
95 2 6×Φ14 4×Φ13 4.8
100 2 8×Φ12 6×Φ12 5
105 2 8×Φ13 6×Φ12 5.5
HD45 105 2 6×Φ14 5xΦ13 8.5
(DHD340A, Cop44) 110 2 7xΦ14 6xΦ13 8.8
115 2 8xΦ14 7xΦ13 9
120 2 8xΦ14 8xΦ13 9.8
127 2 9xΦ14 9xΦ14 11
HD55 133 2 7x16 6x14 16
(DHD350R, Cop54) 140 2 8x16 7xΦ14 16.5
146 2 8xΦ14 8xΦ14 17
152 2 8xΦ14 7xΦ16 17.5
165 2 8xΦ14 8xΦ16 18.5



Payment terms

T/T and Western Union are acceptable.(30% payment deposit, 70% before shipping)



1) You can choose Mode of transportation:
A: By shipment B:By air C: By train D. By express delivery(DHL/FEDEX/UPS etc)

2) You find an agency in your country,then they ship goods from port of China to door.
3) If you like,its our pleasure to help to find a appropriate Transport agency in China.

We will be grateful if you could send us the inquiries by emails.


Order information should be confirm the below information:

1) working pressure
2) hole size
3) plz tell the drilling information of the layer.
4) plz tell the quantity.


After-sale service:

For dth hammer

1) We can help repair hammer till it can work when it doesn’t work in the first use of hammer.
2) In the early use of dth hammer,barrel or piston is broken.

We offer new barrel or new piston.

3) Below is the cause we aren’t responsible for:

A. misoperation or oil starvation or dth hammer is beyond period of use;
B. working pressure is higher than our hammer can support.



Further products information, please don't hesitate to contact us.






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Contact Person : Bill, George, Michael
Tel : 8613764195009
Fax : 86-021-54380177
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