Reverse Circulation Down The Hole Hammer Pr54r Fire Retardant Powerful
Price:
Negotiable
MOQ:
1
Delivery Time:
20days
Product Description
About us:
We are a leading manufacturer for various of high air pressure rock drilling tools, incl. DTH hammers and bits, RC hammers and bits, top hammer button bits, ODEX etc. Our factory locates in LiuYang city, HuNan province, China, where occupies an area of 26,600 square meters, and production facility occupies 22,000 square meters.
Premium quality, professional serivce and competitive price, help us get very good reputation from our worldwide customers, not only from the domestic, also from Brazil, Peru, South Africa, Australia, Turkey, Russia, Ukraine, Korea etc..
All hammer and bits are compatible with many products manufactured by , Atlas Copco, etc, all our products are widely used in mining, tunneling, quarrying, construction, and civil engineering project.
Products specifications:
We are a leading manufacturer for various of high air pressure rock drilling tools, incl. DTH hammers and bits, RC hammers and bits, top hammer button bits, ODEX etc. Our factory locates in LiuYang city, HuNan province, China, where occupies an area of 26,600 square meters, and production facility occupies 22,000 square meters.
Premium quality, professional serivce and competitive price, help us get very good reputation from our worldwide customers, not only from the domestic, also from Brazil, Peru, South Africa, Australia, Turkey, Russia, Ukraine, Korea etc..
Products specifications:

| Technical Parameters ( REVERSE CIRCULATION DRILL BIT AND SHROUD ) | ||||||||
| Diameter | No x Button diameter, mm | Button angleº | Flushing holes | Weight(kg) | Part No | |||
| mm | inch | Gauge Buttons | Front Buttons | |||||
| 86 | 2 1/4 | 6*12 | 4*12 | 35 | 2*12 | 4.2 | RE531-86 | |
| 89 | 2 1/2 | 8*12 | 5*12 | 35 | 2*12 | 4.3 | RE531-89 | |
| 95 | 2 3/4 | 8*12 | 6*12 | 35 | 2*12 | 4.6 | RE531-95 | |
| 102 | 3 | 8*12 | 6*12 | 35 | 2*12 | 4.9 | RE531-102 | |
| Hammer | Bit Shank | Hole Range(mm) | External Diameter(mm) | Length (without bit)mm | Weight | Connection Thread | Working Pressure |
| RE531 | RE531 | 84-100 | 81 | 1069 | 29 | 3" Remet | 1.0-3.0Mpa |
| RE004 | RE004 | 111-127 | 107 | 1252 | 52 | 3.5"-4" Remet | 1.0-3.0Mpa |
| 4" Metzke | |||||||
| RE542 | RE542 | 113-130 | 109.5 | 1191 | 57 | 3.5"-4" Remet | 1.0-3.0Mpa |
| 4" Metzke | |||||||
| RE543 | RE543 | 120-135 | 116 | 1191 | 62 | 3.5"-4" Remet | 1.0-3.0Mpa |
| 4" Metzke | |||||||
| RE545 | RE545 | 122-135 | 117.5 | 1261 | 65 | 4"-4.5"Remet 4"-4.5"Metzke | 1.5-3.5Mpa |
| RE547 | RE547 | 130-146 | 124.5 | 1270 | 71 | 4.5"Remet 4.5"Metzke | 1.5-3.5Mpa |
| PR40 | PR40 | 124-142 | 120.5 | 1362 | 80.5 | 3.5"-4.5"Remet 3.5"-4.5"Metzke | 1.5-3.5Mpa |
| PR52 | PR52 | 126-142 | 121 | 1227 | 68.5 | 4"-4.5"Remet 4"-4.5"Metzke | 1.5-3.5Mpa |
| PR52R | PR52/PR52R | 130-146 | 124 | 1225 | 65 | 4"-4.5"Remet 4"-4.5"Metzke | 1.5-3.5Mpa |
| PR54 | PR54 | 135-150 | 130 | 1294 | 84.5 | 4.5"Remet 4.5"Metzke | 1.5-3.5Mpa |
Bit face shape options:
1. Drop Center Bit
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.
2. Concave Face
The all-round application bit face specifically for medium hard and homogenerous rock formations. Good hole deviation control and good flushing capacity.
3. 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.
4. 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.
5. 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.


Carbide button shape selection:
1. Domed/Round Button
Domed/Round Buttons are usually used as gauge buttons of DTH Bits, suitable for every abrasive and very hard formations.
2. Parabolic/Semi-Ballistic Buttons
Parabolic Buttons are usually used as gauge buttons and front buttons of DTH Bits, suitable for medium abrasive and hard formations.
3. Ballistic Button
Ballistic Buttons are usually used as front buttons of DTH Bits, suitable for medium abrasive and mesium hard formations. They can also be used as gauge buttons if the rock is soft.
4. Sharp Button
Sharp Buttons are usually used as front buttons of DTH Bits for soft formations where fast penetration rates are possible.
5. Flat Button
Flat buttons are usually used as protection buttons to reduce wear on rubbing surfaces of DTH bits.
Reverse Circulation Hammer specifications:
1) 3" RC hammers: RE531,
2) 4'' RC hammers: RE004, RE004R,
3) 4.5" RC hammer: RE542, RE543,
4) 5'' RC hammer: RE545, PR40,
5) 5.5" RC hammer: RE547, PR52, PR54, RC45, AD670
6) other sizes could be made by clients' drawing request.
Why choose us:
1. High quality raw material, with premium hardened procedures for long life.
2. Full production chain to secure stable and prompt production leadtime.
3. Experienced Senior Technicians.
4. Long year experienced workers and engineers.
5. Quick and efficient service.
6. Care customers' concerned.
7. Customized acceptable.




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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changsha Chaojingang Machinery Manufacturing Co., Ltd.
Location
No. 8, Fengyu North Road, Yongan Town, Liuyang, Changsha
Contact Person
Jacky ( Sales Manager)