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Changsha Chaojingang Machinery Manufacturing Co., Ltd.

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City:changsha

Country/Region:china

Contact Person:MrJacky ( Sales Manager)

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China Pr40 / Pr52 / Pr52r / Pr54 / Pr54r RC Drill Bit for Reverse Circulation DTH Hammer Made to Exceed Your Expectations wholesale

Pr54r RC Drill Bit for Reverse Circulation DTH Hammer Made to Exceed Your Expectations

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Model NO. :Reverse Circulation DTH Hammer

Manufacturing Process :Forging

Material :Alloy Steel

Mining Type :Mining

Advantage :High Performance

Color :Per Request

Transport Package :Ply-Wood Case for Safe Delivery

Specification :3inch to 5.5inch

Trademark :Super Diamond

Origin :China

HS Code :8412310090

Supply Ability :50, 000PCS / Year

Customization :Available

Certification :ISO 9001:2008

Surface Treatment :Spray-Paint

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Pr40 / Pr52 / Pr52r / Pr54 / Pr54r RC Drill Bit for Reverse Circulation DTH Hammer

ABOUT US

In order to save the cost of tunnel construction, hydropower stations, and mines, Chinese research institutes have been studying the material and structure of drilling tools since 1980. At present, the quality of the best DTH hammers and drill bits produced in China is very close to that of Sweden products. And occupied 95% of the domestic market. But there are very few manufacturers in China that can produce such high-quality products, and we are one of them.
Changsha Chaojingang(CJG) Machinery Manufacturing Co., Ltd (Super Diamond) is one of the best manufacturers in China's drilling tool industry. Our company has many senior mechanical design engineers with more than 20 years of design experience in the drilling tool, the production process and technology are at the first-class level in China. Our drill tools adapt the top-quality raw materials, equipped with a complete production chain, and with excellent performance during service life. The design of our hammer and bit is simple and reasonable, with the characteristics of high flat degrees, smooth holes, high rigidity, fast punch speed, low failure rate, stable drilling, high penetration rate. The drilling depth exceeded customer expectations and was well received by customers.

Pr40 / Pr52 / Pr52r / Pr54 / Pr54r RC Drill Bit for Reverse Circulation DTH Hammer Made to Exceed Your Expectations

WHY CHOOSE US
1.Strong research and development capabilities.
Belonging to the national high-tech enterprise,we developed China first
Generation DTH hammer without foot valve with professional R&D team and 9 invention patents. And we initiate the first Chinese drilling tool forging program, with leading product customization capabilities.

2. High quality raw materials.
Our company has reached strategic cooperation with China's No.1 cemented carbide factory, processing the best quality raw materials into the best quality products to global users.

3.High-level production technology and strict quality management.
Our company has the whole process of drilling tools production line,and established a perfect ISO9001 management system, to ensure the precision of the product.

4.Professional service.
We have professional pre-sales service, which can tailor more efficient drilling products for you according to your air compressor, drill rig and rock conditions.on the premise of ensuring quality, we can provide customers with the best price. We have standardized after-sales service .

PRODUCT SPECIFICATION

Our reverse circulation DTH hammers and drill bits are of similar quality to those made in Sweden, but price much cheaper.
We are China's leading manufacturer of reverse circulation down-the-hole hammers and drill bits. Our high-quality products and stable quality have enabled our products to be exported to Australia, New Zealand, Canada, Peru and other countries.

RE 545
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
124	4 7/8	8 x 14mm	8 x 13mm	35	2	122	13.3	RE545-124
127	5	8 x 14mm	8 x 14mm	35	2	125	13.5	RE545-127
133	5 1/4	8 x 16mm	10 x 14mm	35	2	131	13.8	RE545-133
136	5 3/8	8 x 16mm	6x16+3x14	35	2	134	14.2	RE545-136

PR 40
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
124	4 7/8	8 x 14mm	8 x 13mm	35	2	122	14.3	PR40-124
127	5	8 x 14mm	8 x 14mm	35	2	125	14.7	PR40-127
133	5 1/4	8 x 16mm	10 x 14mm	35	2	131	15.2	PR40-133
138	5 7/16	8 x 16mm	6x16+3x14	35	2	136	15.8	PR40-138

PR 52
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
133	5 1/4	8 x 16mm	10 x 14mm	35	2	131	11.2	PR52-133
136	5 3/8	8 x 16mm	6x16+3x14	35	2	134	11.5	PR52-136
140	5 1/2	8 x 16mm	6x16+3x14	35	2	138	11.9	PR52-140
143	5 5/8	8 x 16mm	6x16+3x14	35	2	141	12.3	PR52-143

RE 547
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
136	5 3/8	8 x 16mm	6x16+3x14	35	2	134	15.1	RE547-136
140	5 1/2	8 x 16mm	6x16+3x14	35	2	138	15.5	RE547-140
143	5 5/8	8 x 16mm	6x16+3x14	35	2	141	15.8	RE547-143
146	5 3/4	8 x 16mm	6x16+3x14	35	2	144	16.3	RE547-146

PR54
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
136	5 3/8	8 x 16mm	6x16+3x14	35	2	134	18.2	PR54-136
140	5 1/2	8 x 16mm	6x16+3x14	35	2	138	18.5	PR54-140
143	5 5/8	8 x 16mm	6x16+3x14	35	2	141	18.8	PR54-143
146	5 3/4	8 x 16mm	6x16+3x14	35	2	144	19.2	PR54-146

RC 45
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
127	5	8 x 14mm	8 x 14mm	35	2	125	11.2	RC45-127
133	5 1/4	8 x 16mm	9 x 14mm	35	2	131	11.7	RC45-133
136	5 3/8	8 x 16mm	6x16+3x14	35	2	134	14.2	RC45-136
140	5 1/2	8 x 16mm	6x16+3x14	35	2	138	14.5	RC45-140

RC 50
Diameter		No. x Button diameter(mm)		Button angle	Flushing holes	Shroud Diameter	Weight	Part No.
Diameter		No. x Button diameter(mm)				Shroud Diameter	Weight
mm	inch	Gauge Button	Front Button			mm	kg
140	5 1/2	8 x 16mm	6x16+3x14	35	2	138	14.5	RC50-140
143	5 5/8	8 x 16mm	6x16+3x14	35	2	141	14.7	RC50-143
146	5 3/4	8 x 16mm	6x16+3x14	35	2	144	15	RC50-146

PRODUCTION PROCESS

OUR HONOR

OUR PATENT CERTIFICATE

PACKING

FAQ

1.Are you a manufacturer or a trade company?

We are the first-class drilling tools manufacturer in China.

2.How many workers in your factory?and what is your company scale?

We have more than 100 employees.Our company has many senior mechanical design engineers with more than 20 years of design experience in the drilling tool, the production process and technology are at the first-class level in China. With a land area of 26600 square meter and workshop sapce of 22000 square meter .We are equiped with over 100 sets of different advanced equipments and facilities required for manufacturing rock drilling tools.Over 50-70% for export which covers most of the global markets including Korea,Malaysian,Australia,Russia,Middle Asian,East,Europe,South America,and Africa etc..

3.Where are your company?

We are located in Changsha city,Hunan province, half hours by car from the nearest Huanghua international airport.

4.Which port do you shipping from?

We usually ship container from Shanghai port.Guangzhou , ShenZhen and other Chinese port is available too.

5.Can you accept OEM & ODM ?

Yes, both of them are acceptable.

6.What is your minimum order quantity?

Our MOQ are 1pc or 1 complete set, the price may rely on the order quantity.

7.What is your payment term?

We can accept T/T, L/C at sight, West union and in cash.

8.How about the delivery time?

Generally it takes about 20 days .

9.Could we make a schedule of an appoinment with your company?

Definitely.You are the most welcome.Please inform us your arrival time in any place of China and initial routine in advance.We can reserve the hotel,offer pickup service from Changsha Huanghua airport or the CHR Express station unpon your arrival and after the appoinment.Be our guest then!

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